TCE (trichloroethylene) compound stabilizer, preparation method thereof and TCE cleaning agent

一种复合稳定剂、清洗剂的技术，应用在化学仪器和方法、洗涤剂组合物、非表面活性洗涤溶剂等方向，能够解决三氯乙烯稳定性差、难以满足生产要求等问题，达到价格无毒、效果好、价格便宜的效果

Inactive Publication Date: 2016-09-21
WUHU RONGHUI CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Trichlorethylene is used as a cleaning agent for thermal cleaning of objects, which needs to be repeatedly distilled and regenerated for recycling. The cleaning objects themselves require that the solvent should not only ensure the cleaning ability under cleaning conditions, but also not produce harmful substances to the cleaned objects and cleaning equipment. This requires trichlorethylene to have a high degree of stability, but the stability of a single trichlorethylene is poor, and it is difficult to meet the production requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In 500mL of TCE, add diethylamine, thymol, n-butanol and EDTA respectively to prepare TCE cleaner A1. In this TCE cleaner, the concentration of aromatic alcohol is 100ppm, and the concentration of aromatic amine is 30ppm , the concentration of thymol is 5ppm, and the concentration of EDTA is 5ppm.

Embodiment 2

[0031] TCE cleaning agent A2 was prepared according to the method of Example 1, except that the concentration of aromatic alcohol was 200ppm, the concentration of aromatic amine was 200ppm, the concentration of thymol was 20ppm, and the concentration of EDTA was 20ppm.

Embodiment 3

[0033] TCE cleaning agent A3 was prepared according to the method of Example 1, except that the concentration of aromatic alcohol was 110ppm, the concentration of aromatic amine was 100ppm, the concentration of thymol was 8ppm, and the concentration of EDTA was 8ppm.

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PUM

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Abstract

The invention discloses a TCE (trichloroethylene) compound stabilizer, a preparation method thereof and a TCE cleaning agent. The TCE compound stabilizer contains aromatic alcohol, aromatic amine, thymol and EDTA (ethylene diamine tetraacetic acid), wherein in terms of 100 parts by weight of aromatic alcohol, the TCE compound stabilizer contains 30-130 parts by weight of aromatic amine, 3-15 parts by weight of thymol and 3-15 parts by weight of EDTA. The TCE compound stabilizer prepared with the method enables the TCE cleaning agent to have excellent stability.

Description

technical field [0001] The invention relates to a TCE cleaning agent, in particular to a TCE composite stabilizer, a preparation method thereof and a TCE cleaning agent. Background technique [0002] As an excellent solvent, trichlorethylene is widely used as a cleaning agent in the electronics industry and metal machining industry to remove grease. Because trichlorethylene contains C=C double bond and C-Cl polarity, its stability is poor, and it is prone to reactions such as addition, oxidation, polymerization or HCl acid gas, which is mainly caused by the following reasons: [0003] 1) Take the addition reaction as an example: in free Cl, H + In the presence of TCE, the double bond is easily destroyed, and olefin addition reaction occurs to generate corresponding alkane compounds. As time goes by, the impurity content increases correspondingly, and the purity of trichloroethylene becomes lower and lower. [0004] 2) Take the oxygen decomposition reaction as an example: i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/60C11D7/26C11D7/30C11D7/32C11D7/50
CPCC11D7/30C11D7/261C11D7/3245C11D7/5022
Inventor 张顺利章斯淇钟海
Owner WUHU RONGHUI CHEM IND
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