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Electrical equipment cleaning agent and preparation method

A technology for cleaning agents and electrical appliances, applied in the field of cleaning agents, can solve the problems of high price, toxicity, and irritating odor, and achieve the effects of convenient operation, strong volatility and little irritating odor.

Inactive Publication Date: 2011-03-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art that are expensive or contain toxicity and irritating odor, the present invention provides an electrical appliance cleaner with low irritating odor, strong decontamination ability, low toxicity, non-flammability and low price

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 24.9kg of n-bromopropane, 7.3kg of isopropanol, and 67.9kg of HCFC-141b, put them into a closed reaction vessel, and stir and react at 50°C under normal pressure for 30 minutes to obtain it.

Embodiment 2

[0025] Take 37.7kg of n-bromopropane, 11kg of isopropanol, and 51.3kg of HCFC-141b, put them into a closed reaction vessel, and stir and react at 60°C under normal pressure for 30 minutes to obtain it.

Embodiment 3

[0027] Take 50.7kg of n-bromopropane, 14.8kg of isopropanol, and 34.5kg of HCFC-141b, put them into a closed reaction vessel, and stir and react at 70°C for 30 minutes under normal pressure.

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PUM

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Abstract

The invention discloses an electrical equipment cleaning agent and a preparation method. The preparation method comprises the following steps: placing 24.9-50.7 of 1-bromopropane, 7.3-14.8 of isopropanol and 34.5-67.9 of HCFC-141b into an enclosed reactor; and stirring under the normal pressure and at the temperature of 50-70 DEG C, and reacting for 30min to obtain the electrical equipment cleaning agent. The electrical equipment cleaning agent of the invention has low toxicity, low ODP value, small pungent odor, better dirt-removing capacity and permeability, can adjust the volatility of products, is not easy to burn, dose not burn when meeting naked flame, and has low price.

Description

technical field [0001] The invention relates to a cleaning agent. Background technique [0002] With the rapid development of industries such as electronics, electrical machinery, precision instruments, resin processing and precision optics, cleaning agents with excellent performance have also been widely used. Previously used ODS (ozone depleting substances) cleaners, including CFC-113 (trifluorotrichloroethane), TCA (trichloroethane) and CTC (carbon tetrachloride), have been shown to cause atmospheric In order to protect the ozone layer, the ODS cleaning agent has been completely eliminated in China. The use of CTC as a cleaning agent was terminated in December 2003, and the production and use of CFC-113 cleaning agent was stopped in December 2005. The use of TCA cleaning agent was terminated in December 2009. [0003] The current commonly used method is to select solvents with lower ODP (ozone depletion potential) values ​​to replace these cleaning agents, such as hydro...

Claims

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Application Information

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IPC IPC(8): C11D7/30C11D7/26
Inventor 李博李佳蒋迪波
Owner NORTHWESTERN POLYTECHNICAL UNIV
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