Abstract: Apparatus for reducing a particle size of a precursor powder material by fluid energy impact according to one embodiment of the invention may include a housing defining an interior milling cavity therein having a peripheral wall. A powder feed inlet operatively associated with the housing introduces the precursor powder material into the interior milling cavity. A feed gas inlet operatively associated with the powder feed inlet introduces a feed gas into the interior milling cavity. A product discharge outlet operatively associated with the housing removes a milled powder product from the interior milling cavity. An oil injection nozzle assembly operatively associated with the product discharge outlet injects oil into a particle-laden product stream from the product discharge outlet.

Abstract: A method of producing powder product includes the steps of: Feeding a precursor powder material into a jet mill; feeding a gas into the jet mill to initiate a jet milling operation to produce size-reduced particles; and coating size-reduced particles with oil so that newly exposed surfaces of size-reduced particles are coated with oil, wherein the coating step includes one or more of a post-milling oil injection process and a pre-milling oil injection process.

Abstract: A method of producing powder product includes the steps of: Feeding a precursor powder material into a jet mill; feeding a gas into the jet mill to initiate a jet milling operation to produce size-reduced particles; and coating size-reduced particles with oil so that newly exposed surfaces of size-reduced particles are coated with oil, wherein the coating step includes one or more of a post-milling oil injection process and a pre-milling oil injection process.

Abstract: Apparatus for reducing a particle size of a precursor powder material by fluid energy impact according to one embodiment of the invention may include a housing defining an interior milling cavity therein having a peripheral wall. A powder feed inlet operatively associated with the housing introduces the precursor powder material into the interior milling cavity. A feed gas inlet operatively associated with the powder feed inlet introduces a feed gas into the interior milling cavity. A product discharge outlet operatively associated with the housing removes a milled powder product from the interior milling cavity. An oil injection nozzle assembly operatively associated with the product discharge outlet injects oil into a particle-laden product stream from the product discharge outlet.

Abstract: A molybdenum disulfide powder product produced by jet milling a molybdenum disulfide precursor material and substantially continuously combining newly sized-reduced particles with oil to produce said molybdenum disulfide powder product, said molybdenum disulfide powder product having a D50 particle size of less than 4 ?m and an acid number that is less than about 0.5 mg KOH/g. A method for producing powder product includes the steps of: Providing a supply of a precursor powder material; accelerating particles of the precursor powder material by combining them with a flow of gas; confining the accelerated particles in a milling chamber so that they collide with one another to effect a size reduction; and coating newly exposed surfaces of size-reduced particles with oil.

Abstract: A molybdenum disulfide powder product produced by jet milling a molybdenum disulfide precursor material and substantially continuously combining newly sized-reduced particles with oil to produce said molybdenum disulfide powder product, said molybdenum disulfide powder product having a D50 particle size of less than 4 ?m and an acid number that is less than about 0.5 mg KOH/g. A method for producing powder product includes the steps of: Providing a supply of a precursor powder material; accelerating particles of the precursor powder material by combining them with a flow of gas; confining the accelerated particles in a milling chamber so that they collide with one another to effect a size reduction; and coating newly exposed surfaces of size-reduced particles with oil.