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Copper oxychloride particulate matter and preparation method thereof

A technology of copper chloride and particles, which is applied in the field of basic copper chloride particles and its preparation, can solve the problems of dust, large size, etc., and achieve the effect of less dust, uniform particles and high copper content

Active Publication Date: 2018-06-22
GUANGZHOU KECHENG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, to provide a kind of basic cupric chloride particle, the basic cupric chloride particle product size that makes up this basic cupric chloride particle is bigger, has solved the dust raising in the use process The problem

Method used

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  • Copper oxychloride particulate matter and preparation method thereof
  • Copper oxychloride particulate matter and preparation method thereof
  • Copper oxychloride particulate matter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] Prepare an ammonium chloride solution with an ammonia nitrogen concentration of A g / L, heat it to B°C, and then add copper chloride precursor and ammonium chloride to the above ammonium chloride solution at the same time in the way of co-current feeding according to the flow ratio C Precursor solution, maintain the reaction pH value between D, stop feeding until the basic cupric chloride solid just begins to appear in the reaction system, heat preservation reaction E h; then add the copper chloride raw material solution simultaneously in the mode of co-current feeding 1. Alkaline copper-containing solution, maintain the reaction pH value between F, react G h, discharge and wash, and obtain the basic copper chloride particles after drying;

[0052] Described cupric chloride precursor solution is that copper content is H g / L, and pH is the cupric chloride acidic precursor solution of 1;

[0053] In the ammonium chloride precursor solution, the ammonium chloride content is...

Embodiment 1

[0093] Basically the same, the difference is that after adding the precursor, the pH value D of the system is maintained at 5.

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Abstract

The invention discloses copper oxychloride particulate matter and a preparation method thereof. The copper oxychloride particulate matter mainly consists of copper oxychloride particulates, wherein the copper oxychloride particulates of which the particle diameters are 60-250 [mu]m are 97% or above of the total mass of the copper oxychloride particulate matter. Preferably, the crystal form structure of the made copper oxychloride particulate matter is stable, and agglomeration is not liable to cause. According to the preparation method provided by the invention, through control of technological parameters in the preparation process of the copper oxychloride, the forming rate of copper oxychloride crystal kernels and the growth rate of crystals can be maintained to an equilibrium point, sothat the copper oxychloride particulate matter with uniform and appropriate size can be directly prepared, the color is consistent, and the copper oxychloride particulate matter has the advantages ofbeing high in product purity, high in copper content and the like.

Description

technical field [0001] The invention relates to the field of mineral feed additives, in particular to a basic copper chloride granule and a preparation method thereof. Background technique [0002] The traditional method of synthesizing basic copper chloride is to use the acidic etching waste liquid and alkaline etching waste liquid or ammonia water produced in the production process of circuit boards as raw materials, first to remove impurities, and then to feed in parallel flow under heating conditions Synthesis of basic copper chloride. Although the reaction process is simple, since each circuit board factory has different requirements for etching precision, the copper content of the acid and alkali etching waste liquid produced fluctuates greatly. If it is directly used to synthesize basic copper chloride, it will easily lead to The particle size distribution of the product is wide, the average particle size is too small, the color difference is large, and it is easy to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/20C01G3/00
CPCA23K20/30C01G3/00C01G3/05C01P2002/30C01P2004/51C01P2002/72C01P2006/80Y02P10/20C01P2004/61
Inventor 黄智源吴阳东张智勇王皓查正炯王永成
Owner GUANGZHOU KECHENG ENVIRONMENTAL PROTECTION TECH
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