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Polymerization solvent production method

A production method and solvent technology, applied in the field of polymerization solvent production, can solve problems such as failure to meet customer requirements and high oil content, and achieve the effects of improving safety, reducing environmental protection, and reducing the storage of dangerous goods

Inactive Publication Date: 2017-05-24
山西潞安碳一化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Treated as hazardous waste, the oil content is too large; sold as an intermediate product, which does not meet customer requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of polymerization solvent production method of the present invention, comprises the following steps:

[0018] (1) Add auxiliary materials diatomite, activated clay and calcium hydroxide to the incompletely reacted material, stir and mix thoroughly, the weight parts of the incompletely reacted material, diatomite, activated clay and calcium hydroxide The ratio is: 900:1:5:5;

[0019] (2) The homogeneously mixed material in step (1) is subjected to high-temperature distillation and dehydration by kettle distillation at a temperature of 200°C and a pressure of -80Kpa; the distillation time is 3 hours to obtain a fully synthetic base oil and a qualified polymerization solvent.

[0020] The particle size of the diatomite, activated clay and calcium hydroxide is 5.

Embodiment 2

[0022] A kind of polymerization solvent production method, comprises the following steps:

[0023] (1) Add auxiliary materials diatomite, activated clay and calcium hydroxide to the incompletely reacted material, stir and mix thoroughly, the weight parts of the incompletely reacted material, diatomite, activated clay and calcium hydroxide The ratio is: 900:5:15:15;

[0024] (2) The homogeneously mixed material in step (1) is subjected to high-temperature distillation and dehydration by kettle distillation at a temperature of 250°C and a pressure of -90Kpa; the distillation time is 2 hours to obtain a fully synthetic base oil and a qualified polymerization solvent.

[0025] The particle size of the diatomite, activated clay and calcium hydroxide is 500 microns.

Embodiment 3

[0027] A kind of polymerization solvent production method, comprises the following steps:

[0028] (1) Add auxiliary materials diatomite, activated clay and calcium hydroxide to the incompletely reacted material, stir and mix thoroughly, the weight parts of the incompletely reacted material, diatomite, activated clay and calcium hydroxide The ratio is: 900:3:10:10;

[0029] (2) The homogeneously mixed material in step (1) is subjected to high-temperature distillation and dehydration by kettle distillation at a temperature of 230°C and a pressure of -85Kpa; the distillation time is 2.5 hours to obtain a fully synthetic base oil and a qualified polymerization solvent.

[0030] The particle size of the diatomite, activated clay and calcium hydroxide is 200 microns.

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Abstract

The invention discloses a polymerization solvent production method, and belongs to the technical field of production of a polymerization solvent. The invention aims to provide a method used for processing an incompletely reacted material generated in the production of total synthesis base oil into a qualified polymerization solvent product. The technical scheme is as follows: the polymerization solvent production method comprises the following steps: (1) adding auxiliary materials of kieselguhr, activated clay and calcium hydroxide into the incompletely reacted material, fully stirring and mixing, wherein the ratio of parts by weight of the incompletely reacted material to the kieselguhr to the activated clay to the calcium hydroxide is 900:(1-5):(5-15):(5-15); (2) conducting high temperature distillation dehydration on the evenly mixed materials in the step (1), and using still distillation, so as to obtain the total synthesis base oil and the qualified polymerization solvent, wherein the temperature is 200-250 DEG C, the pressure is 80 Kpa to 90 Kpa, and the distillation time is 2-3 hours. The incompletely reacted material generated in the production of the total synthesis base oil is processed, and the pressures of environmental protection and safety are reduced.

Description

technical field [0001] The invention discloses a method for producing a polymerization solvent, which belongs to the technical field of production of a polymerization solvent. Background technique [0002] Fully synthetic base oil strictly refers to high-quality motor oil products that use 100% PAO (poly-a-olefin) or synthetic esters. Poly-a-olefin PAO synthetic oil is the fastest growing type of fully synthetic base oil. PAO producers in the world are concentrated in countries and regions such as the United States, Europe, South Africa and Japan. High-carbon PAO is a high-grade lubricating oil base oil raw material. In recent years, my country has to import a considerable amount of PAO high-grade base oil from abroad every year. [0003] The basic process of fully synthetic base oil is: from coal-to-oil intermediate product → obtain α-olefin after rectification → then add catalyst and auxiliary agent for polymerization reaction → finally obtain fully synthetic base oil a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M107/02
CPCC10M107/02
Inventor 黄开华张雪飞韩慧涛
Owner 山西潞安碳一化工有限公司
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