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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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PRODUCING( pressing, extraction ), REFINING AND PRESERVING FATS, FATTY SUBSTANCES( e.g. lanolin ), FATTY OILS AND WAXES, INCLUDING EXTRACTION FROM WASTE MATERIALS ; ESSENTIAL OILS ; PERFUMES( drying-oils C09F )
NOTE
-
In this subclass, boron and silicon are considered as metals

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Production of fats or fatty oils from raw materials
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.
Pretreatment
. .
{
by enzymes or microorganisms, living or dead
}
. .
of vegetable raw material
{
( C11B 1/025 takes precedence )
}
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.
by pressing
. .
by hot pressing
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.
by extracting
. .
{
in counter-current; utilisation of an equipment wherein the material is conveyed by a screw
}
. .
using super critical gases or vapours
. .
{
using ultra-sounds
}
. .
{
after-treatment, e.g. of miscellae
}
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.
by melting out
. .
with hot water or aqueous solutions
. .
with steam
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Refining fats or fatty oils
.
{
by a combination of two or more of the means hereafter
}
.
{
by enzymes or microorganisms, living or dead
}
.
{
by wave energy or electric current, e.g. electrodialysis
}
.
{
by extraction
}
.
{
by filtration, e.g. including ultra filtration, dialysis( C11B 3/005 takes precedence )
}
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.
by chemical reaction
{
( C11B 3/003 takes precedence )
}
. .
with acids
. .
with bases
. .
with oxidising agents
.
by adsorption
NOTE
-
When classifying in this group, classification is also made in group B01D 15/08 insofar as subject matter of general interest relating to chromatography is concerned.

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.
by distillation
. .
with the use of indifferent gases or vapours, e.g. steam
.
by mechanical means
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Preserving by using additives, e.g. anti-oxidants
NOTE
-
In groups C11B 5/0007 to C11B 5/0092 , in the absence of an indication to the contrary, a composition is classified in the last appropriate place

.
{
Organic substances
}
.
{
Hydrocarbons
}
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.
{
containing oxygen
}
. .
{
Carboxylic acids; Their derivates
}
. .
{
Phenols; Their halogenated and aminated derivates, their salts, their esters with carboxylic acids
}
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.
{
containing nitrogen
}
. .
{
Amines or imines( C11B 5/0035 takes precedence )
}
. .
{
Amides or imides
}
. .
{
Heterocyclic compounds containing nitrogen in the ring
}
.
{
containing halogens, sulfur or phosphorus( halogenated phenols C11B 5/0035 )
}
.
{
Metal hydrides or organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon link
}
.
{
Substances of natural origin of unknown constitution, f.i. plant extracts
}
.
{
Mixtures
}
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Separation of mixtures of fats or fatty oils into their constituents, e.g. saturated oils from unsaturated oils
NOTE
-
In groups C11B 7/0008 to C11B 7/0091 , in the absence of an indication to the contrary an invention is classified in the last appropriate place

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.
{
by differences of solubilities, e.g. by extraction, by separation from a solution by means of anti-solvents( addition of a minor amount of solvent intended to lower the melting point C11B 7/0083 , C11B 7/0091 )
}
. .
{
in hydrocarbons or halogenated hydrocarbons( in pressure liquefied gases C11B 7/005 )
}
. .
{
in solvents containing oxygen in their molecule
}
. .
{
in solvents containing other heteroatoms in their molecule
}
. .
{
in mixtures of individualized solvents( water is not taken into account )
}
. .
{
in solvents used at superatmospheric pressures
}
. .
{
in solvents or mixtures of solvents of different natures or compositions used in succession
}
. .
{
between two or more non-miscible solvent phases
}
.
{
by differences of melting or solidifying points
}
.
{
with addition of auxiliary substances, e.g. cristallisation promotors, filter aids, melting point depressors,( if a characterised solution is formed C11B 7/0008 )
}
.
{
non-solvents, e.g. water wherein the fat or oil is dispersed account a more washing out of fractions is not taken into
}
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Essential oils ; Perfumes( synthesis of chemical substances C07 )
.
{
Compounds of unspecified constitution defined by the chemical reaction for their preparation
}
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.
{
Aliphatic compounds
}
. .
{
containing S
}
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. .
{
containing oxygen as the only heteroatom
}
C11B 9/0019
. . .
{
carbocylic acids; Salts or esters thereof
}
. .
{
containing nitrogen as the only heteroatom
}
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.
{
compounds containing an alicyclic ring not condensed with another ring
}
. .
{
the ring containing less than six carbon atoms
}
. .
{
the ring containing six carbon atoms
}
. .
{
the ring containing more than six carbon atoms
}
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C11B 9/0042
.
{
compounds containing condensed hydrocarbon rings
}
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C11B 9/0046
. .
{
containing only two condensed rings
}
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C11B 9/0049
. . .
{
the condensed rings sharing two common C atoms
}
. . . .
{
both rings being six-membered
}
C11B 9/0057
. . .
{
Spiro compounds
}
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.
{
compounds containing a six-membered aromatic ring not condensed with another ring
}
C11B 9/0065
. .
{
Nitriles
}
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C11B 9/0069
.
{
Heterocyclic compounds
}
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C11B 9/0073
. .
{
containing only O or S as heteroatoms
}
C11B 9/0076
. . .
{
the hetero rings containing less than six atoms
}
C11B 9/008
. . .
{
the hetero rings containing six atoms
}
C11B 9/0084
. . .
{
the hetero rings containing more than six atoms
}
C11B 9/0088
. . .
{
Spiro compounds
}
C11B 9/0092
. .
{
containing only N as heteroatom
}
C11B 9/0096
. .
{
containing at least two different heteroatoms, at least one being nitrogen
}
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.
Recovery or refining of essential oils from raw materials
. .
{
Refining
}
. .
{
Recovery by solvent extraction
}
. .
{
Recovery of volatiles by distillation or stripping
}
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Recovery or refining of other fatty substances, e.g. lanolin, waxes( synthetic waxes C07 , C08 ; mineral waxes C10G )
C11B 11/005
.
{
Lanolin; Woolfat
}
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Recovery of fats, fatty oils, or fatty acids from waste materials( mechanical separation from waste water C02F , E03F )
.
{
of residues of the fabrication of wood-cellulose( in particular tall-oil )
}
.
from soap stock
.
from spent adsorption materials
Solidifying fatty oils, fats, or waxes by physical processes
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Last Modified: 10/10/2013