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A kind of removal method of boron trifluoride and/or its complex

A technology of boron trifluoride and complexes, applied in the direction of energy wastewater treatment, etc., can solve the problems of waste of water resources, large manpower, material resources, large quantities, etc., and achieve the effect of high separation and easy operation

Active Publication Date: 2022-08-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will produce a large amount of waste lye containing fluorine and boron, which will cause serious environmental pollution problems.
In addition, the treatment of this kind of wastewater is very difficult and requires a lot of manpower and material resources. At the same time, the washing process will also cause a lot of waste of water resources.
[0004] So far, people have proposed a variety of boron trifluoride removal and recovery methods, but there are various limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Using boron trifluoride butanol complex as catalyst and 1-decene as raw material to produce polyalphaolefin, after the completion of the reaction, add 100 g of fluid with a complex content of 3% into a triangular flask, and keep it at a constant temperature of 25°C. Under the condition of stirring, add 5 g of commercially available dimethyl sulfoxide, then stir for 60 minutes, centrifuge to separate into liquid-liquid two phases, take the upper organic phase for detection, after detection, the degree of separation of the boron trifluoride complex in the fluid is 85%.

Embodiment 2

[0047] Using boron trifluoride butanol complex as catalyst and 1-decene as raw material to produce polyalphaolefin, after the completion of the reaction, add 100 g of fluid with a complex content of 3% into a triangular flask, and keep it at a constant temperature of 25°C. Under stirring conditions, 5 g of commercially available sulfolane was added, then stirred for 60 minutes, centrifuged to separate into liquid-liquid two phases, and the upper organic phase was taken for detection. After detection, the degree of separation of the boron trifluoride complex in the fluid was 80%.

Embodiment 3

[0049]Using boron trifluoride butanol complex as catalyst and 1-decene as raw material to produce polyalphaolefin, after the completion of the reaction, add 100 g of fluid with a complex content of 3% into a triangular flask, and keep it at a constant temperature of 25°C. Under stirring conditions, 5 g of commercially available tetraethylene glycol was added, then stirred for 60 minutes, centrifuged into liquid-liquid two-phase, and the upper organic phase was taken for detection. After detection, the degree of separation of the boron trifluoride complex in the fluid was 86 %.

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PUM

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Abstract

The present invention provides a method for removing boron trifluoride and / or its complexes, comprising removing boron trifluoride and / or its complexes in a fluid by extraction treatment with a polar organic solvent. The method according to an embodiment of the present invention removes boron trifluoride and / or its complex by extraction treatment with a polar organic solvent, which is easy to operate and has a high degree of separation.

Description

technical field [0001] The present invention relates to a method for removing boron trifluoride, specifically a method for removing boron trifluoride and / or its complex from a reaction product using boron trifluoride and / or its complex as a catalyst. Background technique [0002] Boron trifluoride and boron trifluoride coordination compounds composed of boron trifluoride and ligands (or called boron trifluoride complexes, hereinafter referred to as boron trifluoride complexes) are well-known Lewis Acid-type catalysts are widely used in various chemical reactions such as polymerization, alkylation, and isomerization. After using boron trifluoride or its complex as a catalyst for the reaction, it is often necessary to separate it from the product for subsequent operations. [0003] In the prior art, the neutralization reaction of boron trifluoride is usually carried out with alkaline substances such as aqueous sodium hydroxide solution, ammonia water, etc., and then the metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F110/14C08F110/10C08F4/52C08F6/02
CPCC08F110/14C08F110/10C08F6/02C08F4/52C08L23/24C08L23/22Y02W10/37
Inventor 徐冰苏朔段庆华黄作鑫成欣刘依农
Owner CHINA PETROLEUM & CHEM CORP