Highly branched oily alkane polymer, and preparation method and application thereof

A technology for oily alkanes and alkane mixtures, which is applied in the production of liquid hydrocarbon mixtures, lubricating compositions, petroleum industry, etc., can solve problems such as unfavorable use of lubricating oil and reduction of lubricating oil viscosity index, and achieves high viscosity index and high branching degree. Effect

Active Publication Date: 2013-10-23
NANJING CHEMRUN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the increase of BI will generally lead to a decrease in the viscosity index of lubricating oil, which is unfavorable for the use of lubricating oil

Method used

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  • Highly branched oily alkane polymer, and preparation method and application thereof
  • Highly branched oily alkane polymer, and preparation method and application thereof
  • Highly branched oily alkane polymer, and preparation method and application thereof

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preparation example Construction

[0070] Preparation of Ligand Compounds and Complexes

[0071] The present invention also provides the synthesis of the ligand compound of formula I, comprising steps:

[0072] (a) C is obtained by reacting the corresponding diketone A with an amine compound B.

[0073] (b) Ligand I is obtained by reacting C with amine compound D.

[0074] Described compound A, B, C, D have the following structural formula:

[0075]

[0076] The reaction needs to add 0.001-100% corresponding catalysts to promote the condensation reaction, such as acetic acid, p-toluenesulfonic acid, TiCl 4 , orthosilicate, etc. Specifically, diketone A and amine B are first mixed in an inert solvent, and then activated by 0.001-100% acetic acid to generate monoimine C, and C continues to react with amine D to obtain the product represented by formula (I). Described inert solvent can be all solvents commonly used in condensation reaction, comprises alcohol, aromatic hydrocarbon, aliphatic hydrocarbon, hal...

Embodiment 1

[0132] Synthesis of Ligand L1a

[0133]

[0134] In a 100mL egg-shaped flask, add 3.644g (20mmol) of acenaphthoquinone, add 40mL of methanol, add 4.0mL (20mmol) of 2,6-diisopropylaniline, add 2 drops of anhydrous acetic acid, stir at room temperature, and track the reaction by TLC to End, concentrated under reduced pressure, neutral alumina column chromatography, EA: PE = 1: 20-EA: PE = 1: 10 to obtain the orange-yellow product monoimine, the yield is 60%. 1 H NMR (300MHz, CDCl 3 ): δ=8.21(2H, m), 8.01(1H, d), 7.82(1H, t), 7.41(1H, t), 7.27(3H, s), 6.64(1H, d), 2.84(2H, m), 1.18(6H,d), 0.90(6H,d).

[0135] In a 100mL egg-shaped bottle, add 1.708g (5.0mmol) of monoimine, add 40mL of methanol, add 7.5mmol of aniline, add 2 drops of anhydrous acetic acid, stir at room temperature, follow the reaction to the end by TLC, concentrate under reduced pressure, neutral alumina Column chromatography, EA:PE=1:15 gave the orange-yellow product L1a. 1 H NMR (300MHz, CDCl 3 ): δ=7.88...

Embodiment 2

[0137] Synthesis of Ligand L1b

[0138]

[0139] According to the synthesis method of ligand L1a in Example 1, the second step was to replace aniline with 2,6-dichloroaniline, and the other operating conditions were the same to obtain an orange solid. 1 H NMR (300MHz, CDCl 3 ): δ=8.32(1H, d), 8.10(1H, d), 7.96(1.5H, m), 7.53(2H, d), 7.41(3H, m), 7.38(2H, m), 6.91(0.5 H, m), 6.58 (1H, t), 2.77 (2H, m), 1.29 (2H, d), 0.97 (10H, d), 13 C NMR (75MHz, CDCl3): δ = 162.2, 157.8, 146.1, 133.1, 130.7, 127.5, 124.8, 124.4, 124.3, 123.39, 123.1, 122.7, 120.7, 77.4, 77.6, 28.5, 27.9, 23.5, 22.8. IR(KBr):v(cm -1 )=3052, 2960, 2923, 2865, 1674, 1640, 1602, 1463, 1433, 1242, 1077, 1033, 831, 779, 760, 730; C 30 h 26 Cl 2 N 2 (484.45): Anal. Calc. C 74.22, H 5.40, N 5.77; Found C 73.99, H5.39, N 5.65.

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Abstract

The invention discloses a highly branched oily alkane polymer, and a preparation method and application thereof. The highly branched oily alkane polymer provided by the invention has the following characteristics that (a) the viscosity index ranges from 100 to 300, (b) the pour point ranges from minus 50 DEG C to minus 10 DEG C, (c) the molecular weight ranges from 300 to 500,000 g/mol, and (d) the number of methyls corresponding to every 1000 methylenes ranges from 100 to 500. The invention also discloses a preparation method and application of the highly branched oily alkane polymer, and a lubricating oil prepared from the highly branched oily alkane polymer. The highly branched oily alkane polymer provided by the invention is high in viscosity index and high in branching degree, and thus can be used as a base oil or a processing assistant for an advanced lubricating oil.

Description

technical field [0001] The invention relates to the field of catalysis and base oil of lubricating oil, in particular to a highly branched oily alkane polymer and its preparation method and application. Background technique [0002] The base oil of lubricating oil in industry is a mixture of various branched alkanes, obtained by petroleum cracking or α-olefin oligomerization (PAO). Among them, PAO, as a very important class of lubricant base oil with excellent performance, is obtained through oligomerization of α-olefins, and the main raw materials are α-octene, α-decene, α-dodecene and other expensive high-grade α - Alkenes. [0003] Therefore, the prerequisite for obtaining high-quality base oil PAO is to first catalyze the oligomerization of ethylene to obtain α-olefins, especially α-decene. It is technically difficult to selectively produce α-olefins above C6. The preparation of high-performance base oils directly from cheap olefins such as ethylene, propylene, and bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F10/02C08F8/04C08F4/70C10G50/02C10M107/04C08K5/01
Inventor 唐勇陶闻杰孙秀丽李军方王峥
Owner NANJING CHEMRUN CO LTD
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