A coatings containing polytetrafluoroethylene (PTFE) was prepared with polyphenylene sulfide (PPS) and polyimide (PI) as adhesive which were mixed with PTFE in a suitable solvent.
The tests on mineral processing flowsheet for treating sulfide-Oxidiged Pb-Zn mixed ores were briefly introduced.
简介硫—氧混合铅锌矿选矿流程试验。
3
A mixed nitric-sulphuric acids is used to recover the valuable metals ni, Cu and co from low-grade Ni-Cu sulfide tailings, the leaching rate of ni, Cu, and co is 91.