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随着化纤工业的发展,光稳定的 Sb_2O_3制取方法的研究不断增多。例如锑块在等离子体内的氧化法、锑为阳极的电解制造法、SbCl_3在 EDTA 水溶液中的水解法,以及用对锑化物活性差的试剂,如 CaCO_3、CaSO_4等处理锑的卤盐或卤化物的方法。这些方法能制得耐光性的 Sb_2O_3,然而有的稳定性差,有的价格太高,有的产物分离困难,难得纯品。本研究选用廉价配体——尿素进行 SbCl_3的配合水解,制备了对光照稳定的 Sb_2O+3。所用 SbCl_3是用浸泡氯化法制造的。
With the development of chemical fiber industry, the research on the preparation of photostabilizing Sb_2O_3 is increasing. Such as the oxidation of antimony block in the plasma, the electrolysis of Sb as anode, the hydrolysis of SbCl 3 in EDTA solution and the treatment of antimony halide or halide with poor activity against antimonide such as CaCO 3, CaSO 4 Methods. These methods can be made of light-fast Sb 2 O 3, however, some are poor in stability, some are too expensive, and some are difficult to separate. In this study, the cheaper ligand-urea was used to hydrolyze SbCl_3 to prepare stable Sb_2O + 3. SbCl_3 is used by soaking chloride method.