用BBS取代二氧化锰对硫化银锰精矿进行氧化预处理湿法提银工艺的改进
용BBS취대이양화맹대류화은맹정광진행양화예처리습법제은공예적개진
Using BBS instead of MnO2 to preoxidize manganese concentrate containg silver sulfide,then extracting silver by wet process technology