Molybdenum Recycling Methods

Molybdenum recycling methods At present, molybdenum waste recycling methods are also many, but generally are based on the fire method, supplemented by the wet method, the common methods are as follows:

Sublimation method: This is a method based on the metal molybdenum can be oxidized into molybdenum trioxide at a certain temperature and sublimation and capture and recovery, the recovery rate of up to 98%. This method is mainly used for the recycling of waste molybdenum powder, molybdenum strips, molybdenum flakes, molybdenum wire, molybdenum rhenium alloy, and high-speed steel grinding waste.

Zinc melting method: this method is mainly through the heating, distillation, roasting recovery of cemented carbide and superalloy waste in the alloy elements, such as cobalt (recovery rate of 97%), molybdenum (recovery rate of 96.2%), tungsten (recovery rate of 98.4%).

Oxidation roasting and acid leaching method: This method is mainly used for the recycling of molybdenum-containing catalysts, and the recovery rates of cobalt and molybdenum are 97% and 95% respectively.

Sodium carbonate roasting and leaching method: this method is also mainly used for the recovery of molybdenum-containing spent catalysts, but mainly for the recovery of cobalt and nickel, and their leaching rates are above 90%.

Alkali leaching method: It is mainly used for the regeneration and recovery of molybdenum and nickel-containing waste catalysts, and the leaching rates of molybdenum, aluminum and nickel are 96.9%, 86.7% and 90.1% respectively.