Improvement of Shizhuyuan Method

In the national science and technology research of the 8th and the 9th Five-Year Plans, the joint research by the Shizhuyuan Nonferrous Metals Company, Beijing General Research Institute of Mining and Metallurgy, Guangzhou Nonferrous Metal Research Institute, Changsha Nonferrous Metallurgy Design and Research Institute, and other units, is proposed comprehensive new technology beneficiation - Shizhuyuan Method with all float process as the basis and chelation collector flotation as the core, which is the combination of molybdenum and bismuth flotation, bismuth and sulfur mixed election, scheelite and wolframite mixture ore flotation, coarse-grained ore heating selection and wolframite slimes flotation.

 

Successful research of Shizhuyuan Method, made Shizhuyuan Nonferrous Metals Company instantly built and began production for two large-scale concentrators, so that this company became the tungsten ore business with the largest production scale of tungsten mine and the best economic benefits.

 

After ten years of research in science and technology formed the basis of Shizhuyuan Method, currently Shizhuyuan beneficiation technology have a major breakthrough, the first time that use "high gradient magnetic shunt scheelite and wolframite mixture ore - scheelite and wolframite mixture ore flotation respectively" magnetic - floating and floating - magnetic sorting of new technology to replace the original all float process technology, to achieve harmonious, efficient sorting of low-grade scheelite and wolframite mixture ore, and created favorable conditions for the next step of fluorite and garnet comprehensive recovery . Industrial production results showed that the process makes tungsten comprehensive recovery rate increase 5-10%.