A method for recovering lead from copper smelting dust according to the present invention comprises: an alkali leaching step for leaching, with an alkali solution, lead which is contained in copper smelting dust; a step for solid-liquid separation of a post-leaching solution of and a leaching residue of the alkali leaching; a neutralization step for depositing the lead by adding acid to the separated post-leaching solution; and a step for recovering, by solid-liquid separation, a sediment which contains the lead.
C22B 1/00 - Traitement préliminaire de minerais ou de débris ou déchets métalliques
C22B 3/12 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés par lixiviation dans des solutions inorganiques alcalines
C22B 3/44 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques
A free-cutting copper alloy comprising more than 59.7% but less than 64.7% of Cu, more than 0.60% but less than 1.30% of Si, more than 0.001% but less than 0.20% of Pb, more than 0.001% but less than 0.10% of Bi, and more than 0.001% but less than 0.15% of P, the remaining portion being Zn and unavoidable impurities, wherein the total amount of Fe, Mn, Co, and Cr is less than 0.45%, the total amount of Sn and Al is less than 0.45%, 56.7=Cu-4.7×Si+0.5×Pb+0.5×Bi-0.5×P=59.7 and 0.003=Pb+Bi<0.25 are satisfied, 0.02=Bi/(Pb+Bi)=0.98 is satisfied if 0.003=Pb+Bi<0.08 is satisfied, 0.01=Bi/(Pb+Bi)=0.40 or 0.85=Bi/(Pb+Bi)=0.98 is satisfied if 0.08=Pb+Bi<0.13 is satisfied, 0.01=f3=Bi/(Pb+Bi)=0.33 is satisfied if 0.13=Pb+Bi<0.25 is satisfied, the metal structure of the alloy comprises an a phase and a ß phase, and 17=ß=75, 7.0=(Bi+Pb-0.001)1/2×10+(P-0.001)1/2×5+(ß-8)1/2×(Si-0.2)1/2×1.3=16.0 are satisfied.
C22C 9/04 - Alliages à base de cuivre avec le zinc comme second constituant majeur
C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages
A continuous ore feeding device (110) according to the present invention can continuously feed ore to a smelting furnace without interruption of ore feeding even during reception of ore, and has: a pressure regulation tank (2) that temporarily stores powdered ore; a lift tank (6) that receives the ore from the pressure regulation tank (2) and discharges the ore to the smelting furnace; an air path (14) through which compressed air is introduced to the pressure regulation tank (2) and the lift tank (6); and a control means (28) for the compressed air, wherein the control means (28) causes the ore to be continuously fed from the lift tank (6) to the smelting furnace even during reception of the ore at the lift tank (6) from the pressure regulation tank (2).
B65G 53/66 - Utilisation de dispositifs indicateurs ou de commande, p.ex. pour commander la pression du gaz, pour régler le pourcentage matériaux-gaz, pour signaler ou éviter l'embouteillage des matériaux
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
This continuous ore-feeding apparatus has a plurality of ore-feeding mechanisms that comprise: a pressure-regulated tank (50) that temporarily retains an ore powder; a lift tank that receives the ore from the pressure-regulated tank (50) and discharges the ore into a smelting furnace; and a pressure control system that controls the pressure in the pressure-regulated tank (50) and the lift tank (51) from when ore is received in the pressure-regulated tank (50) through when ore is discharged into the lift tank (51), such that ore is continuously fed from the lift tank to the smelting furnace, wherein the plurality of ore-feeding mechanisms (100)-(103) are connected to a conveyor, which carries ore, in a line from the upstream side to the downstream side of the conveyor, and the continuous ore-feeding apparatus is provided with a feeding control means that controls the ore feeding such that ore is received by the ore-feeding mechanisms in order from the upstream side to the downstream side and ore receiving is initiated in the upstream end ore-feeding mechanism before ore receiving is finished in the downstream end ore-feeding mechanism.
This copper allow casting comprises, 58.5-65.0 mass% (exclusive of 58.5 and 65.0) of Cu, 0.40-1.40 mass% (exclusive of 0.40 and 1.40) of Si, 0.002-0.25 mass% (exclusive of 0.002 and 0.25) of Pb, 0.003-0.19 mass% of P (exclusive of 0.003 and 0.19), 0.0001-0.100 mass% of Bi as an optional element, and the balance being Zn and inevitable impurities, wherein: the total amount of Fe, Mn, Co and Cr is less than 0.45 mass%; the total amount of Sn and Al is less than 0.45%; the relationship 56.0=f1=[Cu]-5×[Si]+0.5×[Pb]+0.5×[Bi]-0.5×[P]=59.5 is satisfied; the relationship 0.003
C22C 9/04 - Alliages à base de cuivre avec le zinc comme second constituant majeur
C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
Provided is a waste liquid treatment method comprising: an aluminum dissolution step of dissolving aluminum in an acidic waste liquid and separating into a first treated water and a heavy metal reduced precipitate; a gypsum recovery step of adding a calcium compound at a pH of 4 or less to the first treated water and separating into a second treated water and gypsum; a heavy metal coprecipitation step of adding a ferric compound to the second treated water and separating into a third treated water and a heavy metal co-precipitate; an aluminum and fluorine removal step of adding an alkali to the third treated water and separating into a fourth treated water and a deposit including aluminum and fluorine; and a neutralization step of adding an alkali to the fourth treated water and separating into alkali-neutralized treated water and a neutralized deposit of heavy metal hydroxides.
C02F 1/70 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par réduction
C22B 3/44 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques
C22B 3/46 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques par substitution, p.ex. par cémentation
This waste liquid treatment method has: an aluminum dissolution step for dissolving aluminum into an acidic waste liquid and performing separation into a first treatment water and a heavy metal reduction deposit; a gypsum recovery step for adding a calcium compound to the first treatment water under liquid properties of pH 4 or below and performing separation into a second treatment water and gypsum; an aluminum and fluorine removal step for adding an alkali to the second treatment water and performing separation into a third treatment water and a sediment containing aluminum and fluorine; and a neutralization step for adding an alkali to the third treatment water and performing separation into an alkali neutralized treatment water and a neutralized deposit of a heavy metal hydroxide.
C02F 1/70 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par réduction
C22B 3/44 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques
C22B 3/46 - Traitement ou purification de solutions, p.ex. de solutions obtenues par lixiviation par des procédés chimiques par substitution, p.ex. par cémentation
8.
DRILLING TIP, DRILLING TOOL, AND METHOD OF MANUFACTURING DRILLING TIP
This excavation chip has a chip body provided with a distal-end part which tapers off progressively toward the distal-end side thereof, a hard layer is formed on the surface of the distal-end part of the chip body, an outermost layer of the hard layer is a cBN sintered compact having cBN particles in a ratio of 70-95 vol%, the cross-sectional structure of the outermost layer is observed to have a width of 1 nm to 30 nm and to contain Al, B, and N, and a bonded phase in which the ratio of the O content to the Al content is 0.1 or less is present between adjacent cBN particles.
E21B 10/46 - Trépans caractérisés par des parties résistant à l'usure, p.ex. des diamants rapportés
B22F 7/00 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage
C04B 35/58 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de borures, nitrures ou siliciures
C04B 41/89 - Revêtement ou imprégnation pour obtenir au moins deux revêtements superposés de compositions différentes
E21C 35/183 - Pics pour l'exploitation des mines; Leurs supports avec des parties rapportées ou des couches résistant à l'usure
9.
POLYCRYSTALLINE DIAMOND SINTERED MATERIAL TOOL EXCELLENT IN INTERFACIAL BONDING STRENGTH AND METHOD OF PRODUCING SAME
ABSTRACT A polycrystalline diamond sintered material tool includes: a cemented carbide substrate (17), which is mainly cornposed of WC and includes Co; and a diamond layer (18) containing a metal catalyst made of CO provided on the cemented carbide substrate (17). The average layer thickness of a Co rich layer (19) formed in an interface between the cemented carbide substrate (17) and tbe diamond layer (18) is 30 tm or 1esS. Preferably, a value of CmAx/CDIA is 2 or less when CDIA is defined as an average content of Co included in the diamond layer (18) and CMAX is defined as a peak value of a Co content in the Co rich layer (19). Date recue/Date received 2023-05-15
B22F 7/00 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage
B22F 7/06 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p.ex. pour former des outils à embouts rapportés
B23B 27/18 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants fixés rigidement, p.ex. par brasage
B23B 27/20 - Outils de coupe sur lesquels les taillants ou éléments tranchants sont en matériaux particulier à éléments tranchants constitués par des diamants
C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
C22C 29/08 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p.ex. cermets, ou d'autres composés métalliques, p.ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène
A drill tip that is attached to the distal end of a drill bit and that performs drilling, the drill tip having a tip main body (1) provided with a proximal-end part embedded in a bit body of the drill bit and a distal-end part that tapers toward the distal-end side and protrudes from the surface of the drill bit. The surface of at least the distal-end part of the tip main body (1) is formed from a polycrystalline cubic boron nitride sintered compact (4) containing 70 to 95 vol% of cubic boron nitride sintered by a catalyst metal that contains Al and at least one of Co, Ni, Mn, and Fe.
In the drill tip of the present invention, the tip body of the drill tip has a cylindrical or disc-shaped rear end part, an intermediate part having a smaller outside diameter than that of the rear end part, and a leading end part in which the outer diameter gradually decreases from the centerline of the tip toward the leading end. The tip body is covered by a hard layer from the surface of the leading end part of the tip body to the outer periphery of the intermediate part. The outside diameter of the hard layer at the intermediate part is equal to the outside diameter of the rear end part.
E21B 10/52 - Trépans caractérisés par des parties résistant à l'usure, p.ex. des diamants rapportés le trépan étant du type à organes coupants roulants avec des parties rapportées du type ciseau ou bouton
This drill tip performs drilling when attached to the leading end of a drill bit, and comprises a tip main body and a hard layer which is coated on at least the leading end of the tip main body and is formed from a hard diamond sintered body harder than the tip main body, wherein, from the surface side to the tip main body side of the hard layer, the hard layer comprises at least two high-hardness layers and, arranged between said high-hardness layers, a low-hardness layer which has a hardness lower than that of the high-hardness layers.
In a sampling method according to the present invention, the coordinates (position information) of a sampling position of a sampling specimen (G) are generated randomly by a PC or other control unit (12) for a sampling position display device (10), and on the basis of the position information, laser light is used to display the sampling position on the sampling specimen (G), which constitutes a portion of material to be recycled. As a result, in increment sampling for determining the average quality, for example, the average valuable metal content, of a sampling specimen (G), it is possible to reliably eliminate arbitrariness resulting from the selection of a sampling position manually by an operator.
One embodiment of this drilling tool comprises a cylindrical casing pipe (1), an annular ring bit (2) that is disposed on the leading end of the casing pipe so as to be coaxial thereto and rotatable about the central axis (O) of the casing pipe (1), and a pilot bit (4) that is inserted into the casing pipe (1) from the rear end side and the leading end of which is disposed in the inner periphery of the ring bit (2). The ring bit (2) engages with the pilot bit (4) on the leading end side in the central axis (O) direction and rotates integrally about the central axis (O) by way of engaging in the direction of rotation during drilling. Drilling tips (5, 3) project from the leading ends of the pilot bit (4) and the ring bit (2), and the drilling tips (5A) on the outermost periphery of the pilot bit (4) and the drilling tips (3A) on the innermost periphery of the ring bit (2) overlap during drilling in the rotational trajectory around the central axis (O).
E21B 10/26 - Trépans avec une partie pilote, c. à d. trépans comportant un organe coupant pilote; Trépans pour élargir le trou de forage, p.ex. alésoirs
15.
ROTARY CUTTING TOOL INCLUDING POLYCRYSTALLINE DIAMOND MATERIAL
This rotating cutting tool having a polycrystalline diamond sintered body has: a PCD layer, comprising a PCD sintered body, integrally sintered with a starting material and arranged on a wall surface facing the tool rotation direction of a chip discharge groove formed at the tip of the tool main body having an ultra-hard alloy as the starting material therefor, said tool main body being rotated around an axis; a cutting blade having this wall surface as the rake face thereof formed upon the PCD layer; and a margin formed in the tip outer circumference of the tool main body and extending to the rear of the chip discharge groove in the tool rotation direction. The cutting blade is formed on the side ridges of the rake face on the tip side of the tool main body and the thickness of the PCD layer as viewed from the tool main body tip side in the axial direction is 1/3-1 times the thickness of the margin.
In the present invention, an inspection hole (17) is formed at the longitudinal-direction lateral surface of a boiler water tube (10a), the base side of a guide pipe (16) is connected to the inspection hole (17), and a closing member (24) is continuously attached to the guide pipe (16). When the thickness of the boiler water tube (10a) is measured, the closing member (24) is detached from the guide pipe (16), an ultrasound probe (18) is inserted from the tip side of the guide pipe (16) into the boiler water tube (10a), and the ultrasound probe (18) is caused to move within the boiler water tube (10a).
F22B 37/02 - MÉTHODES DE PRODUCTION DE VAPEUR; CHAUDIÈRES À VAPEUR - Détails ou parties constitutives des chaudières à vapeur utilisables sur plus d'un type de chaudière à vapeur
G01B 17/02 - Dispositions pour la mesure caractérisées par l'utilisation de vibrations infrasonores, sonores ou ultrasonores pour mesurer l'épaisseur
A method for treating combustible material of the present invention includes providing a pipe (15) opened to a molten substance surface above the molten substance surface of molten substance (L) stored in a furnace body (12) for smelting nonferrous metals, and blowing combustible material (X) containing valuable metals and oxygen-enriched air (Y) into the molten substance surface of the molten substance (L) from the pipe (15).
A method of treating recyclable raw materials containing valuable metals is provided, the method including the steps of: feeding recyclable raw materials (W) containing valuable metals into a rotary kiln furnace (2) in which a refractory product having an Al2O3-Cr2O3 content of 70% or greater is used for an inner wall; feeding an additive (A) containing SiO2 as a major component into the rotary kiln furnace (2) so as to increase a viscosity of a slag (S) flowing along the inner wall, thereby the recyclable raw materials (W) are attached on the slag (S) having a high viscosity such that at least part of the recyclable raw materials (W) is exposed to the inside of the rotary kiln furnace; and burning/melting the recyclable raw materials (W) attached on the slag (S) in the rotary kiln furnace (2).
Provided is a sampling method of recycled raw material, the method including: a process (S3) of primarily crushing recycled raw material; a process (S4 to S7) of separating primarily crushed raw material into three components, "scrap iron", "scrap aluminum", and "recycled raw material component other than scrap iron and scrap aluminum" and performing primary sample reductions of the three components; a process (S8 to S10) of secondarily crushing "the recycled raw material component other than scrap iron and scrap aluminum", which is subjected to the primary sample reduction, and performing a secondary sample reduction of "recycled raw material component other than scrap iron and scrap aluminum" which is secondarily crushed; a mixing process (S12) of mixing "scrap iron" and "scrap aluminum" with "the recycled raw material component other than scrap iron and scrap aluminum" which is subjected to the secondary sample reduction at a mixing ratio corresponding to a weight ratio of "scrap iron", "scrap aluminum", and "the recycled raw material component other than scrap iron and scrap aluminum", in which a mixture obtained in the mixing process is set as an analysis sample.
An inner bit (3) is provided with: a supply hole which is open at the front end of the inner bit (3); and a discharge groove (14) which is formed in the outer peripheral surface of the inner bit (3) and which extends in the axial direction. The supply hole is provided with: a front end blow hole (15) which is open at the front end surface of the front end of the inner bit (3); and an outer peripheral blow hole (16) which is open at the outer peripheral surface of the front end of the inner bit (3). The outer peripheral surface of the inner bit (3) has formed therein an outer peripheral groove (19) which connects the outer peripheral blow hole (16) and the discharge groove (14). The outer peripheral groove (19) is covered from the outside radially by a ring bit and extends from the outer peripheral blow hole (16) toward the discharge groove (14) so as to gradually tilt toward the axial base end side as the outer peripheral groove (19) extends about the axis.
A reaming section (13) is provided at the front end of a bit body (11) which is rotated about an axis (O), and the reaming section (13) has a greater diameter than the rear end of the bit body (11). Digging tips (15) are arranged at the front end of the reaming section (13). Earth discharge grooves (17) extending in the direction of the axis (O) are formed in the outer periphery of the reaming section (13). Connection grooves (18) connecting to the earth discharge grooves (17) are formed so as to extend from the outer periphery of the reaming section (13) to the rear end.
A copper alloy sheet according to one aspect contains 28.0 mass% to 35.0 mass% of Zn, 0.15 mass% to 0.75 mass% of Sn, 0.005 mass% to 0.05 mass% of P, and a balance consisting of Cu and unavoidable impurities, in which relationships of 44>=[Zn]+20x[Sn]>=37 and 32<=[Zn]+9x([Sn]-0.25)1/2<=37 are satisfied. The copper alloy sheet according to the aspect is manufactured by a manufacturing process including a finish cold-rolling process of cold-rolling a copper alloy material, an average grain size of the copper alloy material is 2.0 µm to 7.0 µm, and a sum of an area ratio of a .beta. phase and an area ratio of a .gamma. phase in a metallographic structure of the copper alloy material is 0% to 0.9%.
C22C 9/04 - Alliages à base de cuivre avec le zinc comme second constituant majeur
C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
23.
COPPER ALLOY SHEET, AND METHOD OF PRODUCING COPPER ALLOY SHEET
Provided is one aspect of copper alloy sheet containing 4.5% by mass to 12.0% by mass of Zn, 0.40% by mass to 0.90% by mass of Sn, 0.01% by mass to 0.08% by mass of P, as well as 0.005% by mass to 0.08% by mass of Co and/or 0.03% by mass to 0.85% by mass of Ni, the remainder being Cu and unavoidable impurities. The copper alloy sheet satisfies a relationship of 11 <= [Zn] + 7 × [Sn] + 15 × [P] + 12 × [Co] + 4.5 × [Ni] <= 17. The one aspect of copper alloy sheet is produced by a production process including a finish cold rolling process at which a copper alloy material is cold-rolled. An average grain size of the copper alloy material is 2.0 µm to 8.0 µm, circular or elliptical precipitates are present in the copper alloy material, and an average particle size of the precipitates is 4.0 nm to 25.0 nm, or a percentage of precipitates having a particle size of 4.0 nm to 25.0 nm makes up 70% or more of the precipitates.
C22C 9/04 - Alliages à base de cuivre avec le zinc comme second constituant majeur
B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilés; Séquence des opérations dans les trains de laminoirs; Installation d'une usine de laminage, p.ex. groupement de cages; Succession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
B21B 3/00 - Laminage des matériaux faits d'alliages particuliers dans la mesure où la nature de l'alliage exige ou permet l'emploi de méthodes ou de séquences particulières
C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages
H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisés; Emploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
24.
SILVER-WHITE COPPER ALLOY AND METHOD OF PRODUCING SILVER-WHITE COPPER ALLOY
Provided are a silver-white copper alloy which has superior mechanical properties such as hot workability, cold workability, or press property, color fastness, bactericidal and antibacterial properties, and Ni allergy resistance; and a method of producing such a silver-white copper alloy. The silver-white copper alloy includes 51.0 mass% to 58.0 mass% of Cu; 9.0 mass% to 12.5 mass% of Ni; 0.0003 mass% to 0.010 mass% of C; 0.0005 mass% to 0.030 mass% of Pb; and the balance of Zn and inevitable impurities, in which a relationship of 65.5<=[Cu]+1.2x[Ni]<=70.0 is satisfied between a content of Cu [Cu] (mass%) and a content of Ni [Ni] (mass%). In a metal structure thereof, an area ratio of .beta. phases dispersed in an .alpha.-phase matrix is 0% to 0.9%.
C22C 9/04 - Alliages à base de cuivre avec le zinc comme second constituant majeur
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages
An object of this invention is to provide a mixing calciner that can separate and recover CO2 gas in a high concentration, which is generated when a to-be-calcined cement material is mixed with a superheated calcined portion and calcined, by employing a fluidized-bed type or a spouted-bed type. The invention provides a mixing calciner (12) which mixes the calcined cement material with the superheated calcined portion to cause a calcination reaction, wherein the mixing calciner is the fluidized-bed type or the spouted-bed type, and is provided with a plurality of feed lines (25) for feeding the to-be-calcined cement material. In addition, this invention provides a mixing calciner which easily fluidizes or spouts a cement material even when a heat medium has a particle diameter larger than that of the cement material, and can separate and recover CO2 gas generated in a cement-manufacturing facility in a high concentration.
F27B 15/02 - Fours à lit fluidisé; Autres fours utilisant ou traitant des matières finement divisées en dispersion - Parties constitutives, accessoires ou équipement particuliers à ces types de fours
Provided is an antenna device with which the degradation of characteristics arising from the fact that the antenna has been miniaturized and made thinner is reduced and in which it is possible to increase the gain and to widen the coverage area by improving the characteristics of the internal antenna. The device is equipped with a circuit board (1) , a wireless circuit component (3) which is mounted on the substrate (1) , an internal antenna (2) which is connected to the wireless circuit component (3) which is mounted on the substrate (1) , a circuit-side ground pattern (4) which is connected to the wireless circuit component (3) which is mounted on the substrate (1), and a dedicated antenna ground paten (11) which is connected to the internal antenna (2) which is mounted on the circuit board (1).
Provided is a sputtering target for forming a phosphor film in an eleotroluminescence element, which can maintain high strength even when it is allowed to stand in the atmosphere for a long time. The target has a chemical composition of Al: 20 to 50 mass%, Eu: 1 to 10 mass%, and the remainder containing Ba and inevitable impurities, and has a structure wherein Ba in which Eu is solid solubilized and Al form an intermetallic compound phase, wherein the intermetallic compound phase of Ba in which Eu is solid-solubilized and Al includes a BaAl4 intermetallic compound phase and a Ba7Al13 intermetallic compound phase, and Eu forms a solid solution with Ba in the BaAl4 intermetallic compound and in the Ba7Al13 intermetallic compound, respectively.
REDUCING WATER PURIFICATION MATERIAL, METHOD FOR PRODUCING REDUCING WATER PURIFICATION MATERIAL, METHOD FOR TREATING WASTEWATER, AND WASTEWATER TREATMENT APPARATUS
This reducing water purification material has a reducing iron-based precipitate selected from green rust, iron ferrite, reducing iron hydroxide, and a mixture thereof. This wastewater treatment process has an reducing iron compound addition step of adding a reducing iron compound to wastewater, a precipitation step of leading the wastewater to which the reducing iron compound is added to a reaction tank and forming a precipitate , a solid- liquid separation step of separating the formed precipitate by a solid-liquid separation to obtain a sludge, and a sludge return step of alkalinizing all or a portion of the separated sludge to form an alkaline sludge followed by returning to the reaction tank, wherein in the precipitation step, the wastewater to which the reducing iron compound is added and the alkaline sludge are mixed and are allowed to react in a non-oxidizing atmosphere under alkaline condition to form a reducing iron compound precipitate as the precipitate, thereby incorporating contaminants in the precipitate to remove the contaminants from the wastewater.
TIN-DOPED INDIUM OXIDE FINE PARTICLE DISPERSION, METHOD FOR MANUFACTURING THE SAME, INTERLAYER FILM FOR LAMINATED GLASS WITH HEAT RAY SHIELD PROPERTIES FORMED BY USING SAID DISPERSION, AND LAMINATED GLASS THEREWITH
A dispersion of tin-doped indium oxide fine particles has tin-doped indium oxide fine particles, a plasticizer for an interlayer film, an organic solvent containing alcohols as a main component, and a dispersion stabilizer, wherein under measuring conditions of a concentration of tin-doped indium oxide fine particles of 0.7% by weight and an optical path length of a glass cell of 1 mm, a visible light transmittance is 80% or more, a solar radiation transmittance at a wavelength within a range from 300 nm to 2100 nm is 3/4 or less of the visible light transmittance, a haze value is 1.0% or less, and a reflection yellow index is -20 or more.
C08L 29/14 - Homopolymères ou copolymères d'acétals ou de cétals obtenus par polymérisation d'acétals ou de cétals non saturés ou par post-traitement des polymères d'alcools non saturés
brevets
