With the rapid development of industrial technology, cemented carbide tool materials have been rapidly penetrated into all aspects of industrial production, gradually replacing the original high speed steel materials, and showing unparalleled excellent performance. The main component of cemented carbide is tungsten carbide (WC). Because cobalt powder has good wettability to tungsten, it usually uses cobalt as adhesive phase.

Tungsten tin ore is a brittle mineral. It is very easy to grind powder in the process of mineral processing, and the fine grain tungsten Tin Mineral Reseparation is difficult to be recycled. Therefore, it is very important to discuss the recycley process of tungsten ore. A few successful cases of tungsten tin mine recycley are listed for your reference.

Tungsten tin ore is a brittle mineral. It is easily worn over powder during the process of mineral processing. It brings a lot of inconvenience to the process of mineral processing. In the tungsten tin symbiotic deposit, in order to recover tungsten and Tin Minerals, the original ore is usually removed to the basic monomer, and the jigger or spiral chute is used in advance to throw the tail.

Complex tungsten ores usually refer to ores containing pyrite, antimony, titanium oxide particles, quartz, calcite, sericite, argillaceous material, and cryptic carbon. The separation of crystalline carbon, calcite and Scheelite from complex tungsten ores has always been recognized as one of the difficult problems in ore dressing, and it is also the main reason for this kind of tungsten ore to be difficult to use.

The core component of the magnetron cathode component magnetic control coil requires the uniform distribution of ThO2 particles in the tungsten matrix. At present, the preparation process of the magnetic control coil material powder for magnetron cathode used in foreign countries is to use ammonium paratungstate to burn into the tungsten WO₃ as the raw material, through doping, high temperature sintering, one reduction to doping WO₂ and two times. It was originally doped with W powder. But this method has long working procedure and high manufacturing cost.

The determination of low content of tungsten in ore mainly includes ICP-AES, ICP-MS and visible spectrophotometric method. ICP-AES and ICP-MS instruments are expensive and operating costs are high, and they are not fully popularized at present. The most widely used method is thiocyanate colorimetry. This method is fast, simple, stable, and has wide application scope.

Ammonium paratungstate(APT) is an important tungsten product, mainly used in the manufacture of tungsten trioxide or blue tungsten oxide. At present, the production process of APT products is mainly based on alkali method. Tungsten concentrates or Scheelite Concentrate are extracted and prepared by high pressure alkali boiling and soda pressing. Then, the solution of ammonium tungstate is prepared by solvent extraction or ion exchange method. Finally, the APT product is prepared by evaporation crystallization of ammonium tungstate solution; acid process technology is used. The Scheelite Concentrate is decomposed by hydrochloric acid, dissolved in ammonia, and then evaporated and crystallized to produce APT products.