关键词: 铬铁矿, 铬铁, 铬盐, 清洁生产

Abstract: Chromium salts are the important industrial raw materials，which have an extensive application，but the pollution problem in the manufacturing process is so serious that the research of cleaner production technology is pressing.Development process and present status of chromate industry at home and abroad were introduced briefly.Advantages and disadvantages of the traditional production technologies，such as calcium-containing roasting method，non-calcium roasting method， and sub-molten salt methods，of chromate with chromite as raw material were analyzed.In allusion to the development status of chromate industry and the environmental pollution problems thereof，advantages and disadvantages of cleaner production technologies，of chromate with ferrochromium as raw material as well as the research progress were introduced. These technologies have attracted much attention for its less discharge of the ‘three wastes’ and its easy control，and its research progress is remarkable.

Key words: chromite, ferrochromium, chromium salts, cleaner production