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1·Calcium magnesium acetate (CMA) can be prepared by extraction of acetic acid from dilute acetic acid wastewater using trioctylamine and then by back extraction using dolomite lime.

用三辛胺萃取醋酸废水中的醋酸，加入白云石灰乳反萃，可制得环保型除冰剂醋酸钙镁盐(CMA)。

2·The chemical modification was performed by the complexes such as calcium acetate, magnesium acetate or zinc acetate which reacted with crude capsanthin, and a good result can be gained.

用金属钙、镁、锌的乙酸盐为络合剂分别对粗辣椒红色素进行化学改性，得到辣椒红色素镁络盐和锌络盐的粉末产品；