Ye Lashi's process technology
For ceramics, paper, pesticide carrier such as pyrophyllite, often in below 200 mesh fineness, whiteness of 85% or more, then the process in addition to coarse, medium and fine, but also with the suspension roller mill for grinding and dressing, or even bleaching in order to meet the requirement, then use wet method.Pyrophyllite for production of brick, pyrophyllite dosage is about 50-60%, the rest is clay, limestone and clay stone. Chinese the pyrophyllite mine at Fujian and Zhejiang two provinces, mining and processing plant are the main Fujian Fuzhou pyrophyllite ore, pyrophyllite ore etc. Fujian Shoushan pyrophyllite ore, Minqing County in Fujian.
Pyrophyllite usually made crafts and milling and processing of pyrophyllite powder bleaching.Processing process of pyrophyllite, is determined according to the requirements of the product, such as for the production of refractories, firebrick of pyrophyllite, whiteness is not high, the product size is not very fine, the brick with leaf wax particle size is about 3mm, usually dry production.
General use of magnetic separation; when the iron minerals as heavy metals, gravity can also be used; iron in the form of sulfide or oxide, the flotation can be used. The flotation method is also used for the separation of quartz and other impurities from pyrophyllite ore.
