过氧化钙的制备与应用研究进展

Progress in preparation and applications of calcium peroxide

综述了过氧化钙的制备与应用研究的最新进展。过氧化钙的制备方法有钙盐法、氧化钙法、氢氧化钙法、空气阴极法、喷雾法等。在制备过程中,为了提高双氧水的利用率和产物中过氧化钙的含量,常加入稳定剂。为了使过氧化钙的供氧更持久平缓,可制备包埋型过氧化钙。过氧化钙可用于水稻直播、食用菌生产、土壤改良、水产养殖、污水处理、化工生产与空气净化等领域,可用作食品和饲料添加剂、水果和蔬菜保鲜剂、氰化法提金助剂等,有着越来越广泛的用途。

Latest progress in studies on preparation and applications of calcium peroxide was reviewed. Calcium peroxide can be prepared by calcium salt method, calcium oxide method, calcium hydroxide method, air cathode method, and spray method etc.. During the preparation,in order to increase the utilization efficiency of hydrogen peroxide and to increase the content of calcium peroxide in products,a stabilizer was usually used. For the purpose of improving oxygen supply,em- bedded calcium peroxide has been prepared to provide a prolonged and sustained oxygen supply. Application of calcium per- oxide has become wider and wider. It was not only used in the fields of rice direct sowing,edible fungus production,soil im- provement,aquicuhure,wastewater treatment, chemical production, and air purification etc. , but also it has been used as food and feed additive,fruit and vegetable preservative,assisting agent for gold extraction by cyanidation and so on.