Patent US3893940A successfully refreshed from Google Patents.
US3893940A
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Method of manufacturing surface active agent having low content of unreacted oil
Assignee: Lion Corp
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Filing: 1972-10-31
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Granted: 1975-07-08
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Expires: 1992-10-31
Abstract
Abstract A method of manufacturing a surface active agent, which comprises: mixing one or more neutralized compounds obtained by neutralizing the sulfonate or the sulfate of C12 to 22 olefins, C12 to 22 paraffins or C8 to 22 aliphatic monohydric alcohol with polyhydric alcohol, polyoxyalkylene alkylether, polyoxyalkylene alkylphenyl ether or mixture thereof in a quantity of 0.1 to 10 times as much as the quantity of said neutralized compound(s) by weight; and then subjecting the resulting solution to stripping, thereby removing the unreacted oils contained in said neutralized compound(s).
Inventors
- 👤 Toshiaki Ohogoshi
- 👤 Akira Kawakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:30
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/146; C07; C07C; C07C303/00; C07C303/42; C07C303/44; C11D1/143; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/905; Y10S516/909
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
178 words
A METHOD OF REMOVING UNREACTED OIL FROM A MEMBER OF THE GROUP CONSISTING OF A SALT OF (A) A SULFATE AND (B) A SULFONATE OF AN OIL SELECTED FROM THE GROUP CONSISTING OF (1) OLEFIN HAVING 12 TO 22 CARBON ATOMS, (2) PARAFFIN HAVING 12 TO 22 CARBON ATOMS, (3) ALIPHATIC MONOHYDRIC ALCOHOL HAVING EIGHT TO 22 CARBON ATOMS, AND MIXTURES OF SAID SALTS, SAID SALT CONTAINING AN APPRECIABLE AMOUNT OF UNREACTED OIL, WHICH COMPRISES: MIXING A MATERIAL CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF SAID SALT CONTAINING SAID UNREACTED OIL, WITH 0.1 <O 10.0 TIMES AS MUCH, BASED ON THE WEIGHT OF SAID SALT, OF A SUBSATNCE SELECTED FROM THE GROUP CONSISTING OF (A) A POLYHYDRIC ALCOHOL, (B) A POLYOXYALKYLENE ALKYL ETHER, (C) A POLYOXYALKYLENE ALKYL PHENYL ETHER, AND (D) MIXTURES OF (A), (B) AND (C), SAID SUBSTANCE BEING ESSENTIALLY THE ONLY TREATING AGENT ADDED TO SAID SOLUTION, AND THEN SUBJECTING THE RESULTING LIQUID . MIXTURE CONSISTING ESSENTIALLY OF SAID AQUEOUS SOLUTION OF SAID SALT, SAID OIL AND SAID SUBSTANCE TO STRIPPING TO REMOVE SAID UNREACTED OIL.
Claim 2
Independent Claim
178 words
A METHOD OF REMOVING UNREACTED OIL FROM A MEMBER OF THE GROUP CONSISTING OF A SALT OF (A) A SULFATE AND (B) A SULFONATE OF AN OIL SELECTED FROM THE GROUP CONSISTING OF (1) OLEFIN HAVING 12 TO 22 CARBON ATOMS, (2) PARAFFIN HAVING 12 TO 22 CARBON ATOMS, (3) ALIPHATIC MONOHYDRIC ALCOHOL HAVING EIGHT TO 22 CARBON ATOMS, AND MIXTURES OF SAID SALTS, SAID SALT CONTAINING AN APPRECIABLE AMOUNT OF UNREACTED OIL, WHICH COMPRISES: MIXING A MATERIAL CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF SAID SALT CONTAINING SAID UNREACTED OIL, WITH 0.1 <O 10.0 TIMES AS MUCH, BASED ON THE WEIGHT OF SAID SALT, OF A SUBSATNCE SELECTED FROM THE GROUP CONSISTING OF (A) A POLYHYDRIC ALCOHOL, (B) A POLYOXYALKYLENE ALKYL ETHER, (C) A POLYOXYALKYLENE ALKYL PHENYL ETHER, AND (D) MIXTURES OF (A), (B) AND (C), SAID SUBSTANCE BEING ESSENTIALLY THE ONLY TREATING AGENT ADDED TO SAID SOLUTION, AND THEN SUBJECTING THE RESULTING LIQUID . MIXTURE CONSISTING ESSENTIALLY OF SAID AQUEOUS SOLUTION OF SAID SALT, SAID OIL AND SAID SUBSTANCE TO STRIPPING TO REMOVE SAID UNREACTED OIL.
Claim 3
Dependent Claim
31 words
A method as defined in claim 1, wherein the quantity of said substance mixed with said material is 1 to 5 times as much, based on the weight of said salt.
Claim 4
Dependent Claim
28 words
A method as defined in claim 1, wherein in said stripping, said resulting liquid mixture is heated to a temperature in the range of about 10* to 200*C.
Claim 5
Dependent Claim
30 words
A method as defined in claim 1, wherein in said stripping, said resulting liquid mixture is subjected to a pressure in the range of about 2 to 760 mm Hg.
Claim 6
Dependent Claim
23 words
A method as defined in claim 1, in which said salt is an ammonium or alkali metal sulfate or sulfonate of said oil.
Claim 7
Dependent Claim
84 words
A method as defined in claim 1, in which said substance is selected from the group consisting of glycerin, ethylene glycol, polyethylene glycol having a molecular weight of about 200 to 600, polypropylene glycol having a molecular weight of about 200 to 1,000, sorbitol, polyoxyethylene adducts of 3 to 15 moles of ethylene oxide to aliphatic alcohols having eight to 20 carbon atoms, polyoxyethylene adducts of 5 to 15 moles of ethylene oxide to alkylphenols having eight to 16 carbon atoms, and mixtures thereof.
Claim 8
Dependent Claim
29 words
A method as defined in claim 6, in which the amount of said substance is from 0.5 to 5 times as much, based on the weight of said salt.
Claim 9
Dependent Claim
63 words
A method according to claim 1, in which the stripping is effected by flowing a thin film of said resulting liquid mixture along a heated surface at a rate of from 10 to 2,000 kg/hr per square meter of the heated surface area, at a temperature of from 10* to 200*C and under a pressure of about 2 to 760 mm Hg absolute.
Claim 10
Dependent Claim
50 words
A method according to claim 8, in which the thin film is flowed at a rate of from 50 to 1,000 kg/hr, per square meter of the heated surface area, at a temperature of from 20* to 150*C and under a pressure of about 50 to 350 mm Hg absolute.
References Cited (Backward Citations)
US2103255A
Cited
US2945818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |