Replacement of zinc powder, deoxidizing effect is a very importa.......

A gold mine of gold resources in Yunnan Tin abundant gold reserves of more than 75 t. Ore type containing arsenic, antimony, and organic carbon fine grained disseminat.......

A roller belt conveyor is a machine that frictionally drives materials in a continuous manner. It can be used to form a material conveying process on a certain conveying line from the initial feeding point to the final discharging point. It can carry out the transportation of broken materia.......

With the increasing demand for modern industrial titanium , the recycling of titanium has also received increasing attention. China's titanium recycling technology is still in an intermediate stage from the selection index and th.......

Powder metallurgy is the preparation of metal powders, molding and sintering processes and the use of metal powder (or mixture of metal powder and nonmetal powder) is made of materials technology and products. It is a subdiscipline of metallurgy and material.......

Rare earth minerals in nature and often symbiosis with barite, calcite, apatite, silicate ore minerals. Due to the different mineralization reasons of min.......

1 Introduction <br> CaCO ₃ is an important inorganic chemical product. Because of its low price, wide raw materials and non-toxicity, it is widely used in rubber, plastic, paper, paint, toothpaste and other fillers. The annual consumption of .......