Claims
- 1. A process for preparing a synthetic hydrocarbon lubricant composition, consisting essentially of di-long-chain alkyl aromatic hydrocarbons, wherein the long chain alkyl groups contain about 6 to about 18 carbon atoms and wherein the aryl moiety is phenyl, tolyl, xylyl, or ethylphenyl, said process comprising:
- (a) contacting from 1 to 15 moles of an aromatic hydrocarbon, which is benzene, toluene, xylene, or ethylbenzene, with 1 mole of a linear monoolefin containing about 6 to about 18 carbon atoms, in the presence of about 1 to about 30 moles hydrogen fluoride at a temperature in the range of about 5.degree. C. to about 100.degree. C.,
- (b) recovering from the reaction mass of step (a) mono-long-chain alkyl aromatic hydrocarbon, wherein the mono-long-chain is as defined,
- (c) contacting from 1 to 10 moles of the mono-long-chain alkyl aromatic hydrocarbon of step (b) with 1 mole of linear monoolefin containing about 6 to about 18 carbon atoms in the presence of from 2 to about 10 weight percent aluminum chloride or aluminum bromide, at a temperature of about 60.degree. to about 90.degree. C., and
- (d) recovering from the reaction mass of step (c) the di-long-chain alkyl aromatic hydrocarbon.
- 2. The process of claim 1 wherein step (a) is conducted using the following conditions:
- (a) moles of aromatic hydrocarbon to moles of olefin 2 to 10, and
- (b) moles of hydrogen fluoride to moles of aromatic hydrocarbon: 1 to 10.
- 3. The process of claim 2 wherein the amount of catalyst in step (c) is about 3 to about 6 weight percent, based on the olefin.
- 4. The process of claim 3 wherein the aromatic hydrocarbon is benzene.
- 5. The process of claim 4 wherein the product has a maximum viscosity at -40.degree. F. of 12,000 centistokes.
- 6. The process of claim 5 wherein the product has a maximum viscosity at -40.degree. F. of 10,000 centistokes.
- 7. A process for preparing a synthetic hydrocarbon lubricant composition, consisting essentially of di-alkyl-benzenes, wherein the alkyl groups are linear and contain about 10 to about 14 carbon atoms, said process comprising:
- (a) contacting from 1 to 15 moles of benzene with 1 mole of a linear monoolefin containing about 10 to about 14 carbon atoms in the presence of about 1 to about 30 moles of hydrogen fluoride, at a temperature in the range of about 5.degree. C. to about 100.degree. C.,
- (b) recovering from the reaction mass of step (a) monoalkylbenzene wherein the alkyl group is linear and contains from about 10 to about 14 carbon atoms,
- (c) contacting from 1 to 10 moles of the monoalkylbenzene of step (b) with 1 mole of linear monoolefin containing from about 10 to about 14 carbon atoms in the presence of from 2 to 10 weight percent aluminum chloride or aluminum bromide, at a temperature of about 60 to about 90.degree. C., and
- (d) recovering from the reaction mass of step (c) the di-C.sub.10 -C.sub.14 alkylbenzene, said product having a viscosity at -40.degree. F. of not more than 12,000 centistokes.
- 8. The process of claim 7 wherein step (a) is conducted using the following conditions:
- (a) moles of benzene to moles of olefin: 2 to 10, and
- (b) moles of hydrogen fluoride to moles of benzene: 1 to 10.
- 9. The process of claim 8 wherein the amount of catalyst in step (c) is about 3 to about 6 weight percent, based on the olefin.
- 10. The process of claim 9 wherein the product has a maximum viscosity at -40.degree. F. of 10,000 centistokes.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 566,549, filed Apr. 9, 1975, now abandoned, which is a continuation-in-part of application Ser. No. 453,601, filed Mar. 21, 1974, now abandoned.
US Referenced Citations (6)
Continuations (1)
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566549 |
Apr 1975 |
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Continuation in Parts (1)
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453601 |
Mar 1974 |
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