Incorporation of fluoride in the etching solution ;

酸蚀液中加入氟化物；

The new method of producing basic copper carbonate from waste etching solution containing copper.

介绍了利用含铜蚀刻废液合成碱式碳酸铜的新工艺.

Waste etching solution containing copper, a type of hazardous waste discharged by PCB manufactories , is a potential menace to the environment.

PCB产业所产生的含铜蚀刻废液是对环境存在较大潜在威胁的危险废物。

The working principle, characteristics and application status and trend of a new type of centrifugal extractor in alkaline etching solution recycling were introduced.

介绍了新型离心萃取机的工作原理、特点及其在碱性蚀刻液再生循环中的应用状况及前景。