US3865896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation catalyst additive
Assignee: Texaco Inc
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Filing: 1973-11-05
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Granted: 1975-02-11
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Expires: 1993-11-05
Abstract
Abstract WHEREIN R1, R2 and R3 are selected from straight or branched chain alkyl having 10 to 24 carbon atoms each, for use in strong acid catalyzed reactions wherein alkylatable hydrocarbons are alkylated with alkylating agents. Also, alkylation processes employing such alkylation aids. NN''N'''' tris (alkyl) phosphoric triamide alkylation aids of the formula
Inventors
- 👤 Frederic C Mccoy
- 👤 Edward L Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:24
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0234; B01J31/0255; B01J31/0264; C07C2/60; C07C2527/00; C07C2527/02; C07C2527/03; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/125; C07C2527/126; C07C2531/00; C07C2531/02; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
72 words
IN AN ALKYLATION PROCESS WHEREIN AN ISOPARAFIN HYDROCARBON IS ALKYLATED WITH AN OLEFIN IN THE LIQUID PHASE WITH AN ALYLATION CATALYST SELECTED FROM THE GROUP CONSISTING OF HYDROGEN FLUORIDE, SULFURIC ACID, FLUOROSULFONIC ACID, MIXTURE OF SULFURIC ACID AND FLUOROSULFONIC ACID, AND ALUMINUM CHLORIDE, THE IMPROVEMENT WHICH COMPRISES: EMPLOYING, IN SAID ALKYLATION PROCESS, FROM ABOUT 0.0005 TO ABOUT 0.5 WEIGHT PERCENT BASED ON SAID LIQUID ALKYLATION CATALYST A COMPOUND HAVING THE CHEMICAL FORMULA
Claim 2
Dependent Claim
72 words
IN AN ALKYLATION PROCESS WHEREIN AN ISOPARAFIN HYDROCARBON IS ALKYLATED WITH AN OLEFIN IN THE LIQUID PHASE WITH AN ALYLATION CATALYST SELECTED FROM THE GROUP CONSISTING OF HYDROGEN FLUORIDE, SULFURIC ACID, FLUOROSULFONIC ACID, MIXTURE OF SULFURIC ACID AND FLUOROSULFONIC ACID, AND ALUMINUM CHLORIDE, THE IMPROVEMENT WHICH COMPRISES: EMPLOYING, IN SAID ALKYLATION PROCESS, FROM ABOUT 0.0005 TO ABOUT 0.5 WEIGHT PERCENT BASED ON SAID LIQUID ALKYLATION CATALYST A COMPOUND HAVING THE CHEMICAL FORMULA
Claim 3
Dependent Claim
14 words
The process of claim 1 wherein said compound is NN''N'''' tris (octadecyl) phosphoric triamide.
Claim 4
Dependent Claim
37 words
the process of claim 1 wherein said isoparaffin hydrocarbon is selected from the group consisting of isobutane, isopentane, isohexane and mixtures thereof and wherein said olefin is selected from the group consisting of propene, butenes and isobutene.
Claim 5
Dependent Claim
26 words
The process of claim 3 wherein said catalyst is a strong acid catalyst selected from the group consisting of sulfuric acid, fluorosulfonic acid, and mixtures thereof.
Claim 6
Dependent Claim
27 words
The process of claim 4 wherein said isoparaffin hydrocarbon is isobutane, and wherein said olefin is selected from the group consisting of propene, butene, and mixtures thereof.
Claim 7
Dependent Claim
14 words
The process of claim 5 wherein said compound is NN''N'''' tris (octadecyl) phosphoric triamide.
Claim 8
Dependent Claim
69 words
An alkylation process wherein isoparaffin selected from the group consisting of isobutane, isopentane, isohexane and mixtures thereof is alkylated with olefin selected from the group consisting of propylene, butylene, isobutylene, and mixtures thereof, in the liquid phase, in the presence of liquid catalyst comprising from about 88 to about 98% by weight H2SO4 and containing from about 0.0005 to about 0.5% by weight of a compound having the formula
Claim 9
Dependent Claim
69 words
An alkylation process wherein isoparaffin selected from the group consisting of isobutane, isopentane, isohexane and mixtures thereof is alkylated with olefin selected from the group consisting of propylene, butylene, isobutylene, and mixtures thereof, in the liquid phase, in the presence of liquid catalyst comprising from about 88 to about 98% by weight H2SO4 and containing from about 0.0005 to about 0.5% by weight of a compound having the formula
Claim 10
Dependent Claim
15 words
The process of claim 7 wherein alkyl radicals R1, R2 and R3 are octadecyl radicals.
Claim 11
Dependent Claim
26 words
The process of claim 8 wherein said compound is present in an amount of from about 0.001 to about 0.2 wt. percent of the alkylation catalyst.
Claim 12
Dependent Claim
10 words
The process of claim 9 wherein the isoparaffin is isobutane.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |