一种电子级氧化铜粉的制备方法

Basic copper carbonate is prepared by reacting barium carbonate with copper sulfate, which simplifies the process and solves the problems of incomplete or excessive reaction in existing technologies. This enables the efficient preparation of high-purity copper oxide powder and reduces production costs and energy consumption.

CN121020637BActive Publication Date: 2026-07-17XIAMEN ZIJIN NEW ENERGY & NEW MATERIAL TECH CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN ZIJIN NEW ENERGY & NEW MATERIAL TECH CO LTD
Filing Date
2025-09-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing methods for preparing electronic-grade copper oxide, incomplete or excessive reactions lead to cumbersome processes, low production efficiency, and the need to handle excessive reaction products and residual reactants, which also affects production efficiency.

Method used

Barium carbonate is used as a precipitant to react with copper sulfate to form basic copper carbonate. High-purity copper oxide powder is obtained by heating and decomposing a copper ammonia complex solution, avoiding the use of carbon dioxide and oxidizing gases and simplifying the process.

Benefits of technology

This method yields high-purity copper oxide powder with low metal impurity ion content, which dissolves quickly, reduces production costs, improves production efficiency, simplifies the process, and reduces energy consumption.

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Abstract

本发明提供一种电子级氧化铜粉的制备方法,涉及氧化铜技术领域。本发明采用碳酸钡对硫酸铜溶液进行沉淀,获得的混合固体经过氨水的溶解后分离为固体和铜氨络合物溶液,铜氨络合物溶液再加热分解为碱式碳酸铜,碱式碳酸铜煅烧后获得纯度高、活性高的氧化铜粉,而且金属杂质含量很低。
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