US Patent Issued to DONGJIANG ENVIRONMENTAL on Oct. 27 for "Method for producing high purity copper sulfate from spent acidic copper chloride etching solution" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,216, issued on Oct. 27, was assigned to DONGJIANG ENVIRONMENTAL COMPANY Ltd. (Shenzhen, China).

"Method for producing high purity copper sulfate from spent acidic copper chloride etching solution" was invented by Wenbin Xu (Shenzhen, China), Junqiang Zhu (Shenzhen, China), Huiqian Wang (Shenzhen, China), Long Chen (Shenzhen, China), Zengmeng Yu (Shenzhen, China) and Zhibin Liu (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to the fields of chemical engineering and environmental protection, and in particular to a method of preparing high purity copper sulfate by using an acidic copper chloride etching w...