China's chromium ore resources are relatively poor, according to the degree of meeting the demand, it belongs to the shortage of resources.Total reserves of ore are 10.78 million tons, of which the rich ore accounts for 53.6%.There are 56 chromium ore producing areas, distributed in Tibet, Xinjiang, Inner Mongolia, Gansu and other 13 provinces (regions), with Tibet as the main province, the reserves accounted for about half of the country.Chromium deposits in China are typical magmatic deposits related to ultrabasic rocks, most of which belong to ophiolite type and occur in ophiolite belt.The Luobsha chromic deposit in Xizang and Saltuohai chromic deposit in Xinjiang belong to this class.From the perspective of metallogenic age, the Mesozoic and Cenozoic era are the main forming ages of chromium ore in China.
Metal chromium is mainly used for smelting special alloys with cobalt, nickel, tungsten and other elements.These special steels and special alloys are indispensable materials for aviation, aerospace, automobile, shipbuilding, and industrial production of guns, missiles, rockets, naval ships, etc.
In refractories, chromite is used to make chrome bricks, chrome-magnesite bricks and other special refractories.
Chromite in the chemical industry is mainly used to produce sodium dichromate, and then produce other chromium compounds, used in pigment, textile, electroplating, tanning and other industries, but also to produce catalysts and catalytic agents.Chromite is a scarce mineral in China, with little reserves and low output. More than 80% of the annual consumption depends on imports.
