Preparation method of nano tungsten carbide

• Main Authors: XIAO YINGYI, JIANG JIAFA, TANG WEI, YANG SHUZHONG, WANG YANFEI, HE XI, ZHANG YONGHUI, ZHANG FAN
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2024
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention belongs to the technical field of nano powder, and particularly relates to a preparation method of nano tungsten carbide. The invention provides a preparation method of nano tungsten carbide, which comprises the following steps: calcining ammonium metatungstate to obtain a tungsten oxide aggregate; mixing the tungsten oxide aggregate with carbon black, and granulating to obtain a spherical material; and sequentially carrying out reduction carbonization and passivation on the spherical material to obtain the nano tungsten carbide. The invention provides a method for preparing nano tungsten carbide powder by adopting a dynamic reduction carbonization method. The preparation method comprises the following steps: firstly, preparing a pre-carbonized material with uniformly dispersed crystal grains, and preparing high-quality nano tungsten carbide on the basis of the pre-carbonized material. The preparation method provided by the invention is simple and convenient in process, low in production cost an