US4061798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing hard butters from palm oil
Assignee: Individual
•
Filing: 1976-09-22
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Granted: 1977-12-06
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Expires: 1996-09-22
Abstract
Abstract Hard butters, which are suitable replacements for cacao butter and which may be used for confectionary products without the occurrence of blooming, are obtained by hydrogenating a soft palm oil fraction having an iodine value of at least 55 with a conventional hydrogenation catalyst in the presence of methionine, whereby at least 40% of the glycerides are trans-isomers (calculated as trielaidine) and, optionally separating the middle-fraction of the hydrogenated product.
Inventors
- 👤 Junji Kanegae
- 👤 Tsugio Izumi
- 👤 Akio Mandai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:04
CPC Classifications
A; A23; A23D; A23D9/00; C; C11; C11B; C11B7/00; C11B7/0008; C11C; C11C3/00; C11C3/12; C11C3/123
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
54 words
A process for preparing a hard butter from palm oil, said method comprising hydrogenating a soft palm oil fraction having an iodine value of at least 55 with a conventional hydrogenation catalyst in the presence of a catalytically effective amount of methionine to thereby form a hardened product containing at least 40% of trans-isomers.
Claim 2
Dependent Claim
54 words
A process for preparing a hard butter from palm oil, said method comprising hydrogenating a soft palm oil fraction having an iodine value of at least 55 with a conventional hydrogenation catalyst in the presence of a catalytically effective amount of methionine to thereby form a hardened product containing at least 40% of trans-isomers.
Claim 3
Dependent Claim
38 words
A process according to claim 1, wherein the iodine value of the starting soft palm oil fraction is less than 60, said process further comprising subjecting the hardened product to a further fractionation to remove high-melting glycerides therefrom.
Claim 4
Dependent Claim
14 words
A process according to claim 2, wherein the further fractionation is a solvent fractionation.
Claim 5
Dependent Claim
23 words
A process according to claim 3, wherein the solvent fractionation is effected with methyl ethyl ketone, acetone, hexane, petroleum ether or ethyl acetate.
Claim 6
Dependent Claim
41 words
A process according to claim 3, wherein the solvent fractionation is effected in two stages; a first stage at 15°-25° C. to precipitate out undersirable high-melting glycerides and a second stage at 5°-10° C. to precipitate out the desired hard butter.
Claim 7
Dependent Claim
20 words
A process according to claim 1, wherein the iodine value of the soft palm oil fraction is at least 60.
Claim 8
Dependent Claim
15 words
A process according to claim 1, wherein the hydrogenation catalyst is an activated nickel catalyst.
Claim 9
Dependent Claim
18 words
A process according to claim 7, wherein the activated nickel catalyst comprises 18% nickel embedded in diatomaceous earth.
Claim 10
Dependent Claim
30 words
A process according to claim 1, wherein the amount of catalyst and methionine respectively, are 0.1-3.0% and 0.003-0.03% by weight based on the weight of the soft palm oil fraction.
Claim 11
Dependent Claim
28 words
A process according to claim 1, wherein the hydrogenation is effected at 160° to 220° C. and a hydrogen pressure (gauge) of 1 to 10 kg./cm 2 .
Claim 12
Dependent Claim
36 words
A process according to claim 1, wherein the methionine is selected from the group consisting of 1-methionine, d-methionine, dl-methionine, methionine sulfoxide, methyl sulfonium methionine, β-methionine and functional derivatives, including salts, esters, ethers and N-acyl derivatives thereof.
Claim 13
Dependent Claim
24 words
A process according to claim 1, wherein the soft palm oil fraction has an iodine value ranging from at least 55 to about 75.
Claim 14
Dependent Claim
24 words
A process according to claim 1, wherein the soft palm oil fraction contains up to about 20% by weight of a highly unsaturated oil.
Claim 15
Dependent Claim
24 words
A process according to claim 13, wherein the highly unsaturated oil is rape seed oil, rice bran oil, cotton seed oil or soybean oil.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |