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Alkylaromatic lubricant fluids

A technology for aromatic and aromatic compounds, applied in the field of producing alkylated aromatic compositions and quaternary substituted alkyl aromatic compositions, can solve the problems of increased dimer by-products, heavy economic burden, etc.

Inactive Publication Date: 2010-02-03
EXXON RES & ENG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increased production of dimer by-products becomes a heavy economic burden on the process in the overall process of making useful lower viscosity lubricating oils

Method used

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  • Alkylaromatic lubricant fluids
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  • Alkylaromatic lubricant fluids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Preparation of alkylnaphthalene from 2-hexyl-1-decene and naphthalene

[0059] A solution containing 200 grams of 2-hexyl-1-decene, 228 grams of naphthalene, 200 grams of decane (optional), and 10 grams of a highly active zeolite catalyst (MCM-22) was heated to 125°C under nitrogen and maintained At this temperature for 48 hours. The solution was cooled and filtered. Substances in the lubricating oil range are separated from the mixture by distillation to remove any components boiling below 160°C at a vacuum of 1 mTorr. Product: 231 g of a clear, almost colorless liquid (74% yield based on olefin).

Embodiment 2

[0061] Preparation of alkylnaphthalene from 2-octyl-1-dodecene and naphthalene

[0062] The procedure was similar to Example 1 except that 250 grams of 2-octyl-1-dodecene was used. Product: 268 g of clear, bright yellow liquid (74% yield based on olefin).

Embodiment 3

[0064] Preparation of alkylnaphthalene from 2-octyl-1-dodecene and naphthalene

[0065] A solution containing 250 grams of 2-octyl-1-dodecene, 114 grams of naphthalene, 200 grams of decane, and 15 grams of USY catalyst was heated to 175°C under nitrogen and maintained at this temperature for 8 days. The solution was cooled and filtered. Substances in the lubricating oil range are separated from the mixture by distillation to remove any components boiling below 160°C at a vacuum of 1 mTorr. Product: 254 g of a clear, nearly colorless liquid (62% yield based on olefin).

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Abstract

The alkylaromatic compositions include an aromatic moiety other than unsubstituted naphthalene; and an alkyl moiety having a carbon atom number in the range between 12 to 40, wherein said alkyl moietyis attached to said aromatic moiety such that at least 25 mol % of the benzylic carbons are quaternary. The process for producing the alkylaromatic compositions include contacting at least one an aromatic compound and a mono-olefin having a carbon atom number in the range between 12 to 40 in the presence of an acidic alkylation catalyst under alkylation conditions, wherein at least 50 mol % of the mono-olefin structure comprises a vinylidenyl structure, and thereby producing said alkylaromatic compound having at least 25 mol % of benzylic carbons that are quaternary. The alkylaromatic compositions disclosed herein are liquids that have improved thermo- and oxidative stability and pour point.

Description

technical field [0001] This invention relates to novel alkylaromatic compositions for use as lubricating oil base oils and additives. More specifically, disclosed herein are quaternary-substituted alkylaromatic compositions having improved temperature stability and oxidative stability, which are alkylated from aromatic compounds via olefins containing vinylidene structures And get. The present invention also relates to a process for producing an alkylated aromatic composition utilizing an acidic alkylation catalyst. Background technique [0002] Lubricating oil is a substance that can be introduced as a thin film between two solid surfaces and reduces friction, heat and wear. Efforts to improve the performance of mineral oil-based lubricants have been the focus of research and development activities in the petrochemical industry for the past 50 years. How to maintain its friction reducing properties, how to extend its service life in terms of thermal stability and oxidati...

Claims

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Application Information

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IPC IPC(8): C07C2/64
CPCC10M127/06C10N2230/10C10M2205/223C10N2270/00C10M177/00C10M105/06C10M2203/065C10M2203/06C10N2030/10C10N2070/00
Inventor 贝丝·A·永恩玛格丽特·M·吴克里斯汀·N·埃利娅
Owner EXXON RES & ENG CO
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