关键词: 水泥;六价铬;抑制剂;硫酸亚锡;硫酸亚铁

Abstract: Cement is an important material for national economic construction .China's cement industry has been rapid developed in recent years , the cement output and export volume has been ranked first in the world.But the cement industry also has the problems of low production technology and low quality . Especially, the hexavalent chromium content exceeds standard seriously , this not only affects the health of the operating workers, but also blocks the pace of China 's cement products going out .Aiming to solve the pollution and harm caused by the hexavalent chromium in cement , all countries in the world have formulated strict standards.At present, however, the hexavalent chromium in cement still threatens the cement and its products safety.In view of this, the harm and control status of hexavalent chromium in cement are described and analyzed from the harm of hexavalent chromium , the industry regulation of hexavalent chromium, the sources of hexavalent chromium , the control measures of hexavalent chromium and the status of the reducing agent in cement .Based on the function principle and application characteristics of different hexavalent chromium reducing agents , the development idea of hexavalent chromium reducing agent in cement is discussed to promote the green cement industry development .

Key words: cement;hexavalent chromium;inhibitor;SnSO4;FeSO4