Tungsten carbide buttons tip were first applied to cone bits and then to DTH bits. The history of button bit in China starts from the cone bits in large diameter and DTH bits.

In the traditional method of producing ammonium paratungstate, the main impurity ions in tungsten waste are phosphorus ions, magnesium ions, iron ions and potassium ions. The major part of the tungsten waste is four kinds of phosphorus ions, magnesium ions, iron ions and potassium ions. At 50 -60°C, the large part of the phosphorus ions and potassium ions in the tungsten residue can not be precipitated, and the magnesium ions are also due to the magnesium ions. With the influence of iron ions, most of the tungsten slag produced will be lumpy when the reaction is finished.

Tungstate nanomaterials have been widely used in many fields, such as optics, electricity, magnetism, conductor/superconductor, catalysis, biology and so on. The synthesis methods of transition metal tungstate materials include sol-gel method, copolymer assisted synthesis, reversed micellar soft template, wet chemical method and solution synthesis.

In China, a large amount of tungsten tailings and tungsten waste rock after hand picking has been produced in the mining and processing of tungsten ore. And they are generally dumped into and stored in the tailings ponds. For a long period, most mining businesses are committed to production of tungsten ore, the reclamation of tailings have rarely been noticed.