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Processing method of hexane waste liquid containing dialkoxy compound

A treatment method and compound technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of difficult recovery of hexane waste liquid and inability to obtain hexane, etc. The treatment method is simple and feasible, and the effect of reducing environmental pollution

Active Publication Date: 2015-04-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of hexane needs to be used in the production process, and the reaction products of alcoholates and bismethoxy compounds and unreacted reactants are also included, which makes the recovery of hexane waste liquid very difficult.
Pure hexane cannot be obtained by conventional rectification and distillation

Method used

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  • Processing method of hexane waste liquid containing dialkoxy compound
  • Processing method of hexane waste liquid containing dialkoxy compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 200ml of hexane waste liquid containing 2,2-dimethoxypropane produced by the multi-component carrier, add 200ml of distilled water, 1ml of sulfuric acid (5mol / L), start rectification after mixing and stirring, the rectification column is 1.5m long , for the metal filler. After rectification, the distillate was detected by gaseous quality, and the distillate did not contain 2,2-dimethoxypropane.

Embodiment 2

[0024] Get 200ml of hexane waste liquid containing 2,2-dimethoxypropane produced by the multi-component carrier, add 100ml deionized water, 2ml sulfuric acid (5mol / L), start rectification after mixing and stirring, the rectification column length 1.5m, for the metal filler. After rectification, the distillate was detected by gaseous quality, and the distillate did not contain 2,2-dimethoxypropane.

Embodiment 3

[0026] Take 200ml of hexane waste liquid containing 2,2-dimethoxypropane produced by the multicomponent carrier, add 300ml of distilled water, 1.2ml of hydrochloric acid (4mol / L), start rectification after mixing and stirring, and the length of the rectification column is 1.5 m, is the metal filler. After rectification, the distillate was detected by gaseous quality, and the distillate did not contain 2,2-dimethoxypropane.

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Abstract

A processing method of a hexane waste liquid containing a dialkoxy compound comprises the following steps: adding a treating agent water and a catalyst acid, and carrying out a reaction of the waste liquid to stratify; carrying out a hexane separation operation of the waste liquid to separate hexane from the waste liquid; and carrying out recyclable reuse of the separated-out hexane.

Description

technical field [0001] The invention relates to a treatment method for hexane waste liquid containing dialkoxy compounds. More specifically, it relates to a method for recovering hexane waste liquid containing dialkoxy compounds produced during the production of multi-component carriers. Background technique [0002] It is well known that the performance of Ziegler-Natta catalysts supported by magnesium chloride is significantly better than catalysts supported by other supports when used in propylene polymerization. Therefore, most catalysts for olefin polymerization are supported by titanium halide on activated magnesium chloride. At present, activated magnesium chloride is generally anhydrous MgCl 2 It reacts with alcohol at high temperature to form alcoholate and then it can be obtained by dealcoholization. Recently CN201110142357.X, the catalyst prepared from the carrier prepared by reacting the alcoholate with bismethoxy compounds has the excellent characteristics of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F101/34
Inventor 凌永泰夏先知刘月祥李威莅赵瑾张纪贵高富堂谭扬彭人琪高平乔素珍
Owner CHINA PETROLEUM & CHEM CORP
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