US3634201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for removing volatile impurities from raw oil by scrubbing and distillation with a stripping gas
Assignee: Fried Krupp AG
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Filing: 1969-12-24
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Granted: 1972-01-11
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Expires: 1989-12-24
Abstract
Abstract A method of purification of liquid raw oil containing volatilizable impurities in which the raw oil is first fed into a scrubbing zone and from there into two subsequent purification zones, in one of which the impurities are volatilized and the volatilized impurities are passed into the scrubbing zone to be scrubbed with the fresh raw oil fed thereinto so that the latter will absorb the impurities and the raw oil thus containing an increased percentage of impurities is subjected in the other purification zone to purification in which at least a part of the impurities are removed by neutralization or distillation.
Inventors
- 👤 Wolfgang Kehse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:36
CPC Classifications
C; C10; C10G; C10G31/00; C11; C11B; C11B3/00; C11B3/001
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
13 words
A method as claimed in claim 1, wherein said inert gas is steam.
Claim 2
Dependent Claim
14 words
A method as claimed in claim 2, wherein said oil is a vegetable oil.
Claim 3
Dependent Claim
30 words
A method as claimed in claim 3, wherein said vegetable oil is selected from the gRoup consisting of soybean oil, peanut oil, palm oil, coconut oil and palm kernel oil.
Claim 4
Independent Claim
195 words
A method for processing a raw oil containing volatilizable impurities, comprising the steps of distilling from the raw oil a portion of said impurities to yield a volatilized impurity product and an oil product having a reduced volatilizable impurity content, partially condensing said volatilized impurity product by spraying thereinto said volatilized impurity product in a cooled condensed state, there remaining after the step of partially condensing a portion of said volatilized impurity product still in the volatilized state, deodorizing said oil product with an inert gas under vacuum in a deodorizer for allowing volatilizable impurities still present in said oil product after the step of removing to be stripped out of said oil product by said inert gas, scrubbing the inert gas resulting from the step of deodorizing and said volatilized impurity product still in the volatilized state after the step of partially condensing with raw oil for allowing said inert gas to give up to said raw oil the impurities acquired by said inert gas in the step of deodorizing and for further condensing said volatilized impurity product, and passing the raw oil used in the step of scrubbing to the step of distilling.
Claim 5
Dependent Claim
13 words
A method as claimed in claim 5, wherein said inert gas is steam.
Claim 6
Dependent Claim
31 words
A method as claimed in claim 6, wherein said volatilizable impurities include fatty acids, said oil being selected from the group consisting of liquid raw vegetable, mineral and fish raw oils.
Claim 7
Dependent Claim
14 words
A method as claimed in claim 7, wherein said oil is a vegetable oil.
Claim 8
Dependent Claim
14 words
A method as claimed in claim 8, wherein said vegetable oil is palm oil.
Claim 9
Dependent Claim
14 words
A method as claimed in claim 9, wherein said palm oil contains capric acid.
Claim 10
Independent Claim
173 words
A method for processing a raw oil containing volatilizable impurities, comprising the steps of distilling and deodorizing said raw oil with an inert gas to yield an oil product substantially free of said volatizable impurities and for allowing said volatilizable impurities to be stripped out of said raw oil by said inert gas, partially condensing the volatilized impurities in said inert gas following the step of distilling and deodorizing by spraying thereinto cooled condensed volatilizable impurities previously condensed from the volatilized impurities in said inert gas following the step of distilling and deodorizing, there remaining after the step of partially condensing a portion of the volatilized impurities still in the volatilized state in said inert gas, scrubbing the inert gas following the step of partially condensing with raw oil for allowing said inert gas to give up to said raw oil the volatilized impurities still in the inert gas following the step of partially condensing, and passing the raw oil used in the step of scrubbing to the step of distilling and deodorizing.
Claim 11
Dependent Claim
13 words
A method as claimed in claim 11, wherein said inert gas is steam.
Claim 12
Dependent Claim
31 words
A method as claimed in claim 12, wherein said volatilizable impurities include fatty acids, said oil being selected from the group consisting of liquid raw vegetable, mineral and fish raw oils.
Claim 13
Dependent Claim
14 words
A method as claimed in claim 13, wherein said oil is a vegetable oil.
Claim 14
Dependent Claim
24 words
A method as claimed in claim 14, wherein said vegetable oil is selected from the group consisting of coconut oil and palm kernel oil.
Claim 15
Dependent Claim
19 words
A method as claimed in claim 15, wherein said vegetable oil contains between 1 and 10 percent fatty acids.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |