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US4154779A
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Sulphurized phosphoric acid ester salts and method of preparation
Assignee: Rhein Chemie Rheinau GmbH
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Filing: 1977-02-18
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Granted: 1979-05-15
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Expires: 1997-02-18
Abstract
Abstract Sulpherized monoalkylphosphoric acid mono-salts are prepared by sulphurization of an alkylene group, phosphorylation and subsequent neutralization. Said products are excellent high pressure additives and corrosion inhibitors.
Inventors
- 👤 Ingo Kreutzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:33
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C10; C10M; C10M1/00; C10M1/08; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/167; C23F11/1673; C10M2203/00; C10M2203/06; C10M2205/00; C10M2207/00; C10M2207/10; C10M2207/16; C10M2211/00; C10M2211/08; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/08; C10M2219/082; C10M2221/00; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/045; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
197 words
Process for the preparation of a mixture of monoalkylphosphoric acid mono-salts of the formula ##STR2## wherein x represents a value of from 1 to 5, B denotes a metallic or aminic cation, A represents the valency of B, and R 1 and R 2 are identical or different and denote straight chain, branched chain or cyclic, saturated or unsaturated, hydrocarbon groups having from 3 to 30 C-atoms which may be substituted by one or more of the following groups: --OH, --COOH, --COOR 6 , --OOCR 6 , --OR 6 , [--o--po(oh)--o] - b.sup.⊕, --s x --R 6 wherein R 6 denotes methyl, ethyl, R 1 or R 2 , and B + and x have the meaning given above, comprising reacting two unsaturated hydrocarbons respectively bearing the radicals R 1 and R 2 and having 3 to 30 C-atoms with sulphur or a sulphur halide as a sulphurization agent, at least one of the hydrocarbons carrying at least one of the following groups: --OH, --COOH, --COOR 6 , --OOCR 6 , --OR 6 , [--o--po(oh)--o]--b.sup.⊕, --sx--R 6 , thereafter phosphorylating the product of the sulphurization, and neutralizing the phosphorylation product with a base containing the cation B.
Claim 2
Dependent Claim
197 words
Process for the preparation of a mixture of monoalkylphosphoric acid mono-salts of the formula ##STR2## wherein x represents a value of from 1 to 5, B denotes a metallic or aminic cation, A represents the valency of B, and R 1 and R 2 are identical or different and denote straight chain, branched chain or cyclic, saturated or unsaturated, hydrocarbon groups having from 3 to 30 C-atoms which may be substituted by one or more of the following groups: --OH, --COOH, --COOR 6 , --OOCR 6 , --OR 6 , [--o--po(oh)--o] - b.sup.⊕, --s x --R 6 wherein R 6 denotes methyl, ethyl, R 1 or R 2 , and B + and x have the meaning given above, comprising reacting two unsaturated hydrocarbons respectively bearing the radicals R 1 and R 2 and having 3 to 30 C-atoms with sulphur or a sulphur halide as a sulphurization agent, at least one of the hydrocarbons carrying at least one of the following groups: --OH, --COOH, --COOR 6 , --OOCR 6 , --OR 6 , [--o--po(oh)--o]--b.sup.⊕, --sx--R 6 , thereafter phosphorylating the product of the sulphurization, and neutralizing the phosphorylation product with a base containing the cation B.
Claim 3
Dependent Claim
13 words
A mixture of monoalkylphosphoric acid mono-salts produced by the process of claim 1.
Claim 4
Dependent Claim
39 words
A process according to claim 1, wherein one of the hydrocarbons is diisobutylene and the other carries a hydroxyl group, sulphurization is effected with sulphur, phosphorylation is effected with phosphorus pentoxide and the cation B is an aminic cation.
Claim 5
Dependent Claim
48 words
Process according to claim 1, characterized in that sulphurisation is carried out with sulphur chloride, half a mol of sulphur chloride being added for each double bond of the unsaturated compound at 0° to 100° C., followed by 1 mol of sodium sulphide per mol of sulphur chloride.
Claim 6
Dependent Claim
35 words
Process according to claim 1, characterized in that sulphurisation is carried out using elementary sulphur by heating to 120° to 200° C., 1 to 2 mols of sulphur being added per mol of unsaturated compound.
Claim 7
Dependent Claim
45 words
Process according to claim 1, wherein the unsaturated compound is an alcohol, phosphorylation is carried out at temperatures of from 20° to 150° C. after sulphurisation, using 1 mol of phosphorylating agent per mol of unsaturated compound, and thereafter hydrolysing at 20° to 100° C.
Claim 8
Dependent Claim
33 words
Process according to claim 1, characterized in that neutralisation of the monoalkylphosphoric acid is carried out with bases at temperatures of from 20° to 150° C., using stoichiometric quantities of base and monoester.
Claim 9
Dependent Claim
22 words
A mixture according to claim 1, wherein X represents 2 or 3 and A represents a value of from 1 to 3.
Claim 10
Dependent Claim
37 words
A mixture according to claim 1, in which B denotes a metallic cation of elements 1 to 5 of the Main Group and 1 to 3 or 5 to 8 of the sub-Group of the Periodic System.
Claim 11
Dependent Claim
62 words
A process according to claim 1, in which B denotes an ammonium ion of the formula: HN.sup.⊕ R.sub.3 R.sub.4 R.sub.5 wherein R 3 , R 4 and R 5 denote hydrogen and/or identical or different straight chain or branched chain alkyl groups or cycloalkyl groups having from 1 to 30 C-atoms which may be substituted by ether, alcohol, amine or alkylamine groups.
References Cited (Backward Citations)
US2502408A
Cited
US3471404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |