The sulfide in the metathesis reaction step is ruthenium sulfide, sodium sulfide, ammonium sulfide or hydrogen sulfide. The second reaction, the reaction temperature is 10 to 40 ° C. The reaction temperature is 10 to 40 ° C. The reaction temperature is 10 to 40 ° C. The reaction temperature is 10 to 40 ° C. 5〜lh。 The stirring speed is 0~15m / s, the compounding time 0. 5~lh. The addition of a nonionic surfactant can be nucleated by the fine crystal of nZnS-BaS04, which can effectively inhibit the growth of crystal nuclei.
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2025-08-14 05:35
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