消除污染,保护环境,是关系到国计民生的大问题。随着工业的迅速发展,工业生产中所产生的废水、废气和废渣,已成为许多国家极需解决的问题。氰化物是铅锌选矿中对铅锌分离的一种有效的抑制剂,习用已久。但它含的毒性物 Eliminating pollution and protecting the environment are major issues that affect the national economy and the people's livelihood. With the rapid development of industry, the waste water, exhaust gas and waste residue produced in industrial production have become a problem most countries need to solve. Cyanide is a potent inhibitor of the separation of lead and zinc from lead-zinc concentrates and has long been used. But it contains toxic substances