ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,979, issued on Oct. 7, was assigned to Dongjiang Environmental Co. Ltd. (Guangdong, China).
"Preparation method for electronic-grade copper chloride dihydrate" was invented by Junqiang Zhu (Guangdong, China), Huiqian Wang (Guangdong, China), Qiuqi Liu (Guangdong, China), Wenbin Xu (Guangdong, China), Long Chen (Guangdong, China) and Zengmeng Yu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to the technical field of preparation of copper chloride, and in particular to a method of preparing an electronic-grade copper chloride dihydrate, which mainly includes the following steps: dissolving a copper salt...