EP1055439A2
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EP
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Fragrance extraction
Assignee: Ineos Fluor Holdings Ltd
•
Filing: 1994-02-21
•
Granted: —
•
Expires: 2014-02-21
Abstract
Abstract A process for extracting fragrant, flavoursome or pharmacologically active components from natural materials using non-chlorinated hydrocarbon solvents. The process enables the more volatile components of plant derived materials, which are frequently lost in conventional methods of extraction, to be extracted. This results in the extracted components bearing a greater similarity to, and possessing a larger number of the characteristics of the original material than conventionally obtained extracts.
Inventors
- 👤 Peter Frederick Wilde
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 05:01
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/02; C11B9/025; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0288
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
56 words
A process for extracting one or more components from
material of natural origin, the process comprising the
steps of: a) contacting the material with a non-chlorinated
fluorinated hydrocarbon solvent in the liquid phase so
as to charge the solvent with the component, b) collecting the charged solvent, and c) removing the solvent to isolate the component.
Claim 2
Dependent Claim
28 words
An extract from a material of natural origin, the
extract including a solvent residue, wherein the
solvent residue comprises a solvent which is a non-chlorinated
fluorinated hydrocarbon solvent.
Claim 3
Dependent Claim
18 words
An extract according to claim 2, wherein said extract
comprises a fragrant or flavour or pharmacologically
active component.
Claim 4
Dependent Claim
25 words
An extract according to claim 2 or claim 3, wherein
the solvent is present in the extract at a level of
0.02 ppm or less.
Claim 5
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent is a C 1-3 non-chlorinated
fluorinated hydrocarbon solvent.
Claim 6
Dependent Claim
20 words
A process or an extract according to any preceding
claim, wherein said solvent is a saturated non-chlorinated
fluorinated hydrocarbon solvent.
Claim 7
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent consists of carbon,
fluorine and hydrogen atoms only.
Claim 8
Dependent Claim
90 words
A process or an extract according to any preceding
claim, wherein the solvent is one or more of: CF 3 H,
CH 3 F, CH 2 F 2 , CF 3 CF 2 H, CF 3 CH 3 , HCF 2 CH 3 , CF 3 CHFCF 3 ,
CF 3 CF 2 CF 3 H, CF 3 CH 2 CF 3 , CF 3 CF 2 CH 3 , CF 3 CF 2 CH 2 F, HCF 2 CF 2 CF 2 H
and CF 3 CHFCF 2 H.
Claim 9
Dependent Claim
15 words
A process or an extract according to any preceding
claim, wherein said solvent is tetrafluoroethane.
Claim 10
Dependent Claim
15 words
A process or an extract according to any preceding
claim, wherein said solvent is 1,1,1,2-tetrafluoroethane.
Claim 11
Dependent Claim
17 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 H.
Claim 12
Dependent Claim
17 words
A process or an extract according to any preceding
claim, wherein said solvent is CH 3 F.
Claim 13
Dependent Claim
19 words
A process or an extract according to any preceding
claim, wherein said solvent is CH 2 F 2 .
Claim 14
Dependent Claim
19 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CF 2 H.
Claim 15
Dependent Claim
19 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CH 3 .
Claim 16
Dependent Claim
19 words
A process or an extract according to any preceding
claim, wherein said solvent is HCF 2 CH 3 .
Claim 17
Dependent Claim
19 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CHFCF 3 .
Claim 18
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CF 2 CF 2 H.
Claim 19
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CH 2 CF 3 .
Claim 20
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CF 2 CH 3 .
Claim 21
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CF 2 CH 2 F.
Claim 22
Dependent Claim
21 words
A process or an extract according to any preceding
claim, wherein said solvent is HCF 2 CF 2 CF 2 H.
Claim 23
Dependent Claim
19 words
A process or an extract according to any preceding
claim, wherein said solvent is CF 3 CHFCF 2 H.
Claim 24
Dependent Claim
32 words
A process or an extract according to any preceding
claim, wherein the material of natural origin is
selected from: flowers, bulbs, corms, moulds, yeasts,
fungi, algae, lichens, herbs, seeds, bark and buds.
Claim 25
Dependent Claim
26 words
A process or an extract according to any preceding
claim, wherein the material of natural origin is
selected from plants, flowers, herbage, bulbs, seeds
and vegetables.
Claim 26
Dependent Claim
21 words
A process or an extract according to any of claims 1
to 23, wherein the material of natural origin
comprises flowers.
Claim 27
Dependent Claim
21 words
A process or an extract according to any of claims 1
to 23, wherein the material of natural origin
comprises herbs.
Claim 28
Dependent Claim
64 words
A process as claimed in any preceding claim, wherein
the material is contacted with the solvent in an
extraction vessel after the vessel has been sealed and
air has been removed, and wherein the mixture of the
solvent and the material is maintained under pressure
so that the material and the solvent are in intimate
contact and the solvent is charged with the component.
Claim 29
Dependent Claim
25 words
A process as claimed in any preceding claim, wherein
the temperature of the solvent is not more than 40°C
when in contact with the material.
Claim 30
Dependent Claim
20 words
A process as claimed in any preceding claim, wherein
the temperature of the solvent is not more than
ambient temperature.
Claim 31
Dependent Claim
36 words
A process as claimed in any of claims 28 to 30,
wherein the pressure in the extraction vessel is not
more than 40mbar after the air has been removed and
before the solvent has been introduced.
Claim 32
Dependent Claim
54 words
A process as claimed in any preceding claim, wherein
the material is contacted with the solvent in an
extractor, and wherein the extractor communicates with
a source of the solvent to supply solvent to the
extractor and with an evaporator to remove the solvent
from the charged solvent in order to isolate the
component.
Claim 33
Dependent Claim
25 words
A process as claimed in claim 32, wherein the
evaporator communicates with a compressor which
supplies liquefied solvent to the solvent source
and/or the extractor.
Claim 34
Dependent Claim
24 words
A process as claimed in claim 32 or 33, wherein the
evaporator includes a source of heat for controlling
the temperature of the evaporator.
Claim 35
Dependent Claim
22 words
A process as claimed in claim 34, wherein the source
of heat is thermostatically controlled to maintain the
temperature of the evaporator.
Claim 36
Dependent Claim
17 words
A component obtained by a process according to Claim 1
or any of Claims 5 to 35.
References Cited (Backward Citations)
No citation records indexed.
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