Author’s research group began to study the new technology of vacuum decomposition of molybdenite in 2007, began to build the production base in 2009, and had already built the thousand-ton-level vacuum decomposition production plant. At the same time, research group also has developed a preparation technology of ultrapure and ultrafine MoS2 powders, gone into mass production, and have enjoyed a high reputation at home and abroad. In order to develop preparation technology of ultrapure nano-MoO3 powders, research group has also developed a new sublimation oxidation technology of using the metal molybdenum powder after vacuum decomposition, and make a success
