摘要
对高磷软锰矿首先采用强磁选提高锰品位并初步脱磷,然后用微生物深度脱磷。对含锰17.4%,P/Mn为0.010 9的软锰矿,经强磁选后,锰精矿中Mn品位提高到22%以上,P/Mn降低至0.008 0;用一种解磷菌对磁选锰精矿进行细菌脱磷,脱磷率最高可达85%,脱磷后锰精矿中P/Mn达到0.001 5,符合冶金用锰P/Mn为0.003的要求。
The high intensity magnetic separation is used to improve the grade of manganese for a pyrolusite containing 17.4% Mn and with a P/Mn ratio of 0.010 9, and the phosphorus is partially removed at the same time. A further dephosphorization is then carried out by microorganism. By magnetic separation, a manganese concentrate is obtained with a grade of more than 22% Mn and a P/Mn ratio of 0.008 0. A dephosphorization efficiency of 85% is attained by a certain phosphorus-decomposing bacteria, resulting in a P/Mn of 0.001 5 in the manganese concentrate, which is lower than 0.003 for the hydrometallurgical specification of P/Mn.
出处
《中国锰业》
2009年第3期21-23,共3页
China Manganese Industry
关键词
软锰矿
磁选
微生物
解磷菌
脱磷
Pyrolusite
Magnetic separation
Microorganism
Phosphorus-decomposing bacteria
Dephosphorization
