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Method for preparing cupric chloride and cuprous chloride from dye waste residue

A technology of cuprous chloride and cupric chloride, applied in the direction of removal of cupric chloride, cupric halide, solid waste, etc., can solve problems such as insufficient utilization of valuable elements, achieve simple production process and equipment, reduce Pollution, easy-to-achieve effects

Inactive Publication Date: 2012-02-08
冯若愚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has disposed of the organic matter in the waste residue, it has not fully utilized the valuable elements contained in the waste residue, and there is no relevant report on the method of preparing cupric chloride and cuprous chloride from dye waste residue.

Method used

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  • Method for preparing cupric chloride and cuprous chloride from dye waste residue
  • Method for preparing cupric chloride and cuprous chloride from dye waste residue

Examples

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Effect test

Embodiment 1

[0024] A method for preparing cupric chloride and cuprous chloride with dye waste residue, comprising the following preparation steps:

[0025] Step A, put dye waste residue (reactive brilliant blue K-NA dye waste residue and basic violet dye waste residue according to 1: 1 mixed homogeneous mixture) into roasting furnace 1 for roasting, furnace temperature in roasting furnace 1 is controlled at 600~700 ℃, roasting to obtain a roasting mixture; after roasting, the organic matter in the dye waste residue is oxidized into carbon dioxide and water vapor, the copper carbonate in the dye waste residue becomes copper oxide, and the cuprous sulfide turns into cuprous oxide;

[0026] Step B, put the roasting mixture obtained in step A and hydrochloric acid into the corrosion-resistant reactor 2 according to the mass ratio of pure substance 1: 0.91 for reaction, and the reaction generates a mixed solution of cupric chloride and cuprous chloride; (assuming that roasting Mixture 500kg, w...

Embodiment 2

[0031] A method for preparing cupric chloride and cuprous chloride with dye waste residue, comprising the following preparation steps:

[0032] Step A, put dye waste residue (reactive brilliant blue K-NA dye waste residue and basic violet dye waste residue according to 1: 1 mixed homogeneous mixture) into roasting furnace 1 for roasting, furnace temperature in roasting furnace 1 is controlled at 600~700 ℃, roasting to obtain a roasting mixture; after roasting, the organic matter in the dye waste residue is oxidized into carbon dioxide and water vapor, the copper carbonate in the dye waste residue becomes copper oxide, and the cuprous sulfide turns into cuprous oxide;

[0033] Step B, put the roasting mixture obtained in step A and hydrochloric acid into the corrosion-resistant reactor 2 according to the mass ratio of pure substance 1: 0.71 and react, and the reaction generates a mixed solution of cupric chloride and cuprous chloride; (assuming that roasting Mixture 500kg, wher...

Embodiment 3

[0038] A method for preparing cupric chloride and cuprous chloride with dye waste residue, comprising the following preparation steps:

[0039] Step A, put dye waste residue (reactive brilliant blue K-NA dye waste residue and basic violet dye waste residue according to 1: 1 mixed homogeneous mixture) into roasting furnace 1 for roasting, furnace temperature in roasting furnace 1 is controlled at 600~700 ℃, roasting to obtain a roasting mixture; after roasting, the organic matter in the dye waste residue is oxidized into carbon dioxide and water vapor, the copper carbonate in the dye waste residue becomes copper oxide, and the cuprous sulfide turns into cuprous oxide;

[0040] Step B, put the roasting mixture obtained in step A and hydrochloric acid into the corrosion-resistant reactor 2 according to the mass ratio of pure substance 1: 1.11 and react, and the reaction generates a mixed solution of cupric chloride and cuprous chloride; (assuming that roasting Mixture 500kg, wher...

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Abstract

The invention belongs to the technical field of organic chemical-industrial dye industry three-waste comprehensive utilization, and especially relates to a method for preparing cupric chloride and cuprous chloride from dye waste residues. According to the invention, waste residues generated from dye production processes are baked, and are treated with hydrochloric acid, such that cupric chloride and cuprous chloride are prepared. The method has advantages of simple production technology, simple equipment, and low cost. With the method, environmental pollution caused by waste residues generated from dye production processes are effectively controlled; relatively pure cupric chloride and cuprous chloride products with economic values are produced; and considerable economic benefits are brought in.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of three wastes in the organic chemical dye industry, in particular to a method for preparing cupric chloride and cuprous chloride from dye waste residue. technical background [0002] In the dye industry, reactive brilliant blue K-NR, basic violet, reduced ash BG, guaiacol and other production processes will produce a large amount of waste residue, which contains a large amount of copper, organic substances and inorganic salts, etc., and if these waste residues Direct discharge can have serious impacts on the environment. [0003] Among them, the reactive brilliant blue K-NA dye is made of copper chloride, bromine, and meta-ester compounds as raw materials, and is made into products through condensation, filtration, refining, crystallization, separation, and drying. After the condensation reaction, it is filtered Copper-containing waste liquid is produced in the process. The p...

Claims

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Application Information

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IPC IPC(8): C01G3/05B09B3/00
Inventor 王嘉兴
Owner 冯若愚