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Method for producing cupric chloride basic by using scrap copper

A copper chloride, basic technology, applied in the field of preparation of feed additive basic copper chloride, can solve the chemical properties of low content of dioxins and polychlorinated biphenyls, residual dioxins and polychlorinated biphenyls, redox power Weak problems such as meeting environmental protection and cleaner production, reducing feed consumption, and high absorption and utilization rate

Inactive Publication Date: 2012-05-02
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, copper sulfate and basic copper chloride are mainly used as copper sources in feed. Copper sulfate is discharged in large quantities due to its antagonism to other trace elements and high solubility, which aggravates the pollution to the environment. Nowadays, sulfuric acid is used There are fewer and fewer manufacturers of copper as a feed additive, and basic copper chloride is more and more applied to feed because of its low water solubility, weak redox power, and no damage to the nutrients in the feed. However, most of the basic copper chloride currently on the market is produced with copper-containing etching waste liquid as raw material. The process is simple and the cost is low, but the etching liquid contains high concentrations of pollutants, such as ammonia nitrogen, dioxin, poly Chlorinated biphenyls, etc., although ammonia nitrogen can be removed by effective methods, but the content of dioxins and polychlorinated biphenyls is small and their chemical properties are stable, so it is difficult to be removed
Therefore, the use of copper-containing etching waste liquid as raw material for production results in the residue of dioxins and PCBs in alkali copper, which are then deposited in animals, causing potential harm

Method used

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  • Method for producing cupric chloride basic by using scrap copper
  • Method for producing cupric chloride basic by using scrap copper

Examples

Experimental program
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Effect test

Embodiment 1

[0025] a kind of like figure 1 The preparation method of shown basic cupric chloride of the present invention may further comprise the steps:

[0026] (1) Preparation of copper chloride: first add 500ml of dilute hydrochloric acid with a mass fraction of 20% to the reaction pot as a reaction solution, which also contains Cu with a concentration of 7.8g / L 2+ , then turn on the stirring device, and add 100g of scrap copper raw material into the reaction pot (the scrap copper of this embodiment includes copper filings produced by copper processing, discarded copper wires and enameled wires, etc.) and 4g of catalyst CH84 (CH84 catalyst can Manganese, vanadium, copper, iron, titanium compounds or any combination of the above-mentioned compounds); start to pass steam into the reaction pot and heat it to about 70°C, and continuously blow in air (the air should be evenly arranged And control the air volume), under this condition, the copper-dissolving reaction is carried out. After t...

Embodiment 2

[0029] a kind of like figure 1 The preparation method of shown basic cupric chloride of the present invention may further comprise the steps:

[0030] (1) Preparation of copper chloride: first add 1100ml of dilute hydrochloric acid with a mass fraction of 15% to the reaction pot as a reaction solution, which also contains Cu with a concentration of 9.5g / L 2+ , then turn on the stirring device, and add 200g of waste copper raw materials into the reaction pot (the waste copper of this embodiment includes copper filings produced by copper processing, discarded copper wires and enameled wires, etc.) and 10g of catalyst CH84 (CH84 catalyst can Manganese, vanadium, copper, iron, titanium compounds or any combination of the above-mentioned compounds); start to pass steam into the reaction pot and heat it to about 80°C, and continuously blow in air (the air should be evenly arranged And control the air volume), under this condition, the copper-dissolving reaction is carried out. Afte...

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Abstract

The invention discloses a method for producing cupric chloride basic by using scrap copper, which comprises the steps of: at first, adding the scrap copper into a reaction liquid containing hydrochloric acid, then heating the reaction liquid in a reaction kettle, performing a copper-dissolving reaction at a certain temperature and removing impurities after reaction to obtain a cupric chloride solution; performing a secondary reaction by using the cupric chloride solution prepared and alkali, wherein the molar ratio of cupric chloride and alkali is 1: (0.1-3); preparing a cupric chloride basic solution after reaction; and washing, centrifuging and drying to obtain the end product of cupric chloride basic. The method provided by the invention has the advantages of simple technological steps, low cost, ecological and environmental friendliness, stable product quality and good product safety and the like.

Description

technical field [0001] The invention belongs to the technical field of feed additives, and in particular relates to a preparation method of a feed additive basic copper chloride. Background technique [0002] Copper plays an important role in maintaining the normal metabolism and immunity of the body. Feeding experiments show that adding high copper in the feed can improve the daily gain, feed intake and feed efficiency of animals, and has the effect of promoting growth. At present, copper sulfate and basic copper chloride are mainly used as copper sources in feed. Copper sulfate is discharged in large quantities due to its antagonism to other trace elements and high solubility, which aggravates the pollution to the environment. Nowadays, sulfuric acid is used There are fewer and fewer manufacturers of copper as a feed additive, and basic copper chloride is more and more applied to feed because of its low water solubility, weak redox power, and no damage to the nutrients in ...

Claims

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Application Information

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IPC IPC(8): C01G3/05
Inventor 黄逸强
Owner XINGJIA BIO ENG CO LTD
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