Alkyl naphthalene high-temperature heat conduction oil base oil and preparation method and application thereof

A technology of alkylnaphthalene and heat transfer oil, which is applied in chemical instruments and methods, base materials, petroleum industry, etc., and can solve the problem of high temperature of base oil of alkyl naphthalene high temperature heat transfer oil

Active Publication Date: 2021-03-26
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alkyl naphthalene high temperature heat transfer oil base oil

Method used

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  • Alkyl naphthalene high-temperature heat conduction oil base oil and preparation method and application thereof
  • Alkyl naphthalene high-temperature heat conduction oil base oil and preparation method and application thereof
  • Alkyl naphthalene high-temperature heat conduction oil base oil and preparation method and application thereof

Examples

Experimental program
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Example Embodiment

[0047]The present invention also provides a method of preparing an alkyl naphthalene high temperature heat-conducting oil based on the above technical solution, including the following steps:

[0048]Four hydroxaphthalene, naphthalene and the first catalyst were mixed to give a mixture;

[0049]The olefin was added to the mixture, and the reaction was reacted after the second catalyst was added to obtain the alkylhthalene high temperature heat-conducting oil base oil; the olefin was 1-decene or 1-tertiethylene.

[0050]The present invention mixes tetrahydronaphthalene, naphthalene, and a first catalyst to obtain a mixture. The present invention is not particularly limited to the specific manner of the mixing, and can be well known to those skilled in the art.

[0051]After the mixture was obtained, the olefin droplets were added to the mixture, and the reaction was reacted after the second catalyst was added to obtain the alkylhthalene high temperature heat-conducting oil base oil; the olefin w...

Example Embodiment

[0064]Example 1

[0065]0.1 mol naphthalene, 0.2 mol tetrahydronaphthalene and 0.04 mol of trichloride were added to the stirred tank, and 0.5 mol1-decene was added dropwise, and the remaining 0.08 mol of trichloride was added twice; heated to 50 ° C reaction 5 hours; cooled, 1 wt% sodium hydroxide solution; water washed into neutral; dry sulfate dried overnight, filtered; 380 ° C evaporate low fraction; decolor, to obtain alkylkaronap, 20, 20, respectively, 20 %, 65%, and 15% of alklene, alkyl tetrahydronaphthalene and mixtures of polyethylene olefins (PAO). The primer is 380 ° C; pour point -43 ° C; 0 ° C viscosity 225 cSt, -20 ° C viscosity 2680 cSt; viscosity index 95.

[0066]The alkyl naphthalene thermos produced in Example 1 performs an infrared spectrum chart, and the results arefigure 1Indicated.

[0067]97 g of the alkyl-carnaphthalene carname-carnotenap admixture was added to 110 ° C, stirred to 110 ° C, stirred for 1 h; 1 g of an antioxidant 2,6-di-tert-butyl pair THC (T501), sti...

Example Embodiment

[0068]Example 2

[0069]0.1 mol naphthalene, 0.3 mol tetrahydronaphthalene and 0.06 mol of trichloride were added to the stirred tank, and 0.9 mol 1-tertiene was added dropwise, and the remaining 0.12 mol of trichloride was added twice; heated to 55 ° C The reaction was 5.6 hours; 1 wt% sodium hydroxide solution was added; water was washed into neutral; no water sulfate was dried overnight, filtered; 2. 0. 0. The low fraction was evaporated. The mass content is 23%, 59% and 18% alklene, alkyl tetrahydronaphthalene, and a mixture of poly alpha olefins (PAO). The primary distillation site is 380 ° C; pour point -41 ° C; 0 ° C viscosity 230 cSt, -20 ° C viscosity 2776 CST; viscosity index 100.

[0070]The alkyl nap thereof produced in Example 2 performs an infrared spectrum chart, and the results arefigure 1Indicated.

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Abstract

The invention provides alkyl naphthalene high-temperature heat conduction oil base oil and a preparation method and application thereof, and belongs to the field of heat conduction oil. The alkyl naphthalene high-temperature heat conduction oil base oil comprises the following components in percentage by weight: 20-30% of alkyl naphthalene, 50-65% of alkyl tetrahydronaphthalene and 15-20% of polyalpha olefin (PAO). According to the alkyl naphthalene high-temperature heat conduction oil base oil, the boiling points of the long-chain substituted alkyl naphthalene and tetrahydronaphthalene are higher, so that the cutting temperature can be increased, and the long-chain substituted alkyl naphthalene and tetrahydronaphthalene can also be directly used as special lubricating oil, such as transformer oil and refrigerator oil; the combination of the three compounds gives consideration to high boiling point and low condensation point. The high-temperature heat conduction oil base oil is a light yellow, yellow or light orange transparent liquid at normal temperature, and the initial boiling point is 380 DEG C; the pour point is less than -40 DEG C; the viscosity at 0 DEG C is 225-238 cSt, and the viscosity at -20 DEG C is 2680-2790 cSt; the viscosity index is 95-100.

Description

technical field [0001] The invention relates to the technical field of heat-conducting oil, in particular to an alkylnaphthalene high-temperature heat-conducting oil base oil and a preparation method and application thereof. Background technique [0002] Alkylated naphthalene is a high-temperature heat transfer oil with excellent performance, which is widely used in many industrial fields and plays an important role in the organic heat carrier family. Representative alkylnaphthalene heat transfer oils at home and abroad mainly include Japanese KSK-330 (a mixture of methylnaphthalene, dimethylnaphthalene, etc.), Yanshan Petrochemical YD-340 (tetrahydronaphthalene, etc.), Hebei Chemical Industry Research Institute N D -330 (triisopropylnaphthalene), etc., the main fluid temperatures are 330°C, 340°C and 330°C respectively. With the rapid development of industry, the requirements for heat transfer oil are becoming increasingly stringent, and it is urgent to increase the temper...

Claims

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Application Information

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IPC IPC(8): C10M111/04C10M109/02C10M111/06C09K5/10C10N30/06C10N30/08C10N20/02C10N30/02C10N40/16C10N40/30
CPCC09K5/10C10M109/02C10M111/04C10M111/06C10M2203/045C10M2203/065C10M2205/0285
Inventor 高平刘维民冯大鹏
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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