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Treatment process of dibenzoyl methane production waste

A dibenzoylmethane and production waste technology, which is applied in the direction of solid adsorbent liquid separation, alkali metal chloride, alkali metal halide purification, etc., can solve the problems of solid waste sodium chloride treatment difficulties, etc., to achieve effective and The effect of rapid separation, improvement of purity and reduction of content

Pending Publication Date: 2021-11-09
ANHUI JIAXIAN FUNCTIONAL AUXILIARY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to provide a treatment process for dibenzoylmethane production waste, to solve the difficult problem of solid waste sodium chloride that is produced in the dibenzoylmethane production process

Method used

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  • Treatment process of dibenzoyl methane production waste
  • Treatment process of dibenzoyl methane production waste

Examples

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Effect test

Embodiment 1

[0026] The dibenzoylmethane production waste sodium chloride and water are mixed evenly at a mass ratio of 1:4, and then sent to a flotation device for stirring and flotation to remove organic impurities in the upper layer.

[0027] The flotation equipment used includes a flotation cylinder, the top of the flotation cylinder is equipped with a stirring motor electrically connected to an external power supply, the stirring motor is equipped with an agitator, and the agitator includes a stirring rod, a first paddle, a second paddle and an air The gasification rod, the length of the first paddle is greater than the length of the second paddle, and the first paddle is installed on the stirring rod above the second paddle, the gasification rod is a round rod with a tapered structure on the top, and the gasification The rod is installed at the lower part of the stirring rod, and the length of the first paddle is greater than that of the second paddle, so that the bubbles generated by...

Embodiment 2

[0032] The dibenzoylmethane production waste sodium chloride and water are mixed uniformly at a mass ratio of 1:6, and then sent to a flotation device for stirring and flotation to remove organic impurities in the upper layer.

[0033] The flotation equipment used includes a flotation cylinder, the top of the flotation cylinder is equipped with a stirring motor electrically connected to an external power supply, the stirring motor is equipped with an agitator, and the agitator includes a stirring rod, a first paddle, a second paddle and an air The gasification rod, the length of the first paddle is greater than the length of the second paddle, and the first paddle is installed on the stirring rod above the second paddle, the gasification rod is a round rod with a tapered structure on the top, and the gasification The rod is installed at the lower part of the stirring rod, and the length of the first paddle is greater than that of the second paddle, so that the bubbles generated...

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Abstract

The invention discloses a treatment process of dibenzoyl methane production waste, which comprises the steps of: mixing sodium chloride as dibenzoyl methane production waste with water according to a mass ratio of 1: (3-5), then feeding the mixture into flotation equipment, stirring, carrying out flotation, removing upper organic impurities, then taking out a mixed solution in the flotation equipment, carrying out adsorption, concentration, precipitation and separation, washing solid substances with an organic solvent, and drying the solid substances to obtain industrial salt. According to the method, the defects in the prior art are overcome, the content of organic impurities in the industrial salt is reduced, and the purity of the industrial salt is improved.

Description

technical field [0001] The invention relates to the technical field of dibenzoylmethane production waste treatment, in particular to a treatment process for dibenzoylmethane production waste. Background technique [0002] my country is a large PVC production, processing and consumption country. With the improvement of environmental protection laws and regulations and attention to product quality and safety, the growth rate of the consumption market of environmentally friendly PVC heat stabilizer dibenzoylmethane will remain at 10% and above. At present, lead salt stabilizers are mainly used in the domestic market, but with the implementation of my country's new environmental protection law and the gradual enhancement of people's environmental awareness, the use of lead salt heat stabilizers will be greatly limited in the future. At the same time, with the revision of national environmental protection laws and the continuous enhancement of people's awareness of environmental p...

Claims

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Application Information

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IPC IPC(8): C01D3/16C01D3/14C01D3/06B01J20/20B01J20/30B01D15/00
CPCC01D3/16C01D3/14C01D3/06B01J20/20B01D15/00
Inventor 李兑李平童庆军陈新华孙刚耀
Owner ANHUI JIAXIAN FUNCTIONAL AUXILIARY
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