C12S 1/00
|
Treatment of petroleum oils, shale oils or sand oils |
C12S 1/02
|
Desulfurising |
C12S 3/00
|
Treatment of animal or plant materials or micro-organisms |
C12S 3/02
|
Recovery or purification of carbohydrate material |
C12S 3/04
|
Cellulose, e.g. plant fibres |
C12S 3/06
|
Treatment of hemp or flax |
C12S 3/08
|
in the production of paper pulp |
C12S 3/10
|
Treatment of sugar or molasses |
C12S 3/12
|
Treatment of pectin or starch |
C12S 3/14
|
Recovery or purification of proteinaceous material |
C12S 3/16
|
Collagen or gelatin |
C12S 3/18
|
Recovery or purification of glyceridic oils, fats, ester-type waxes or fatty acids |
C12S 3/20
|
Removal of nucleic acids from intact or disrupted cells |
C12S 3/22
|
Treatment of blood fractions |
C12S 3/24
|
Treatment of animal secretions or organs |
C12S 5/00
|
Treatment of emulsions, gases or foams |
C12S 7/00
|
Treatment of hides, e.g. depilating, bating |
C12S 9/00
|
Cleaning solid surfaces of materials |
C12S 11/00
|
Treatment of textiles, e.g. cleaning |
C12S 99/00
|
Subject matter not provided for in other groups of this subclass |