Method for preparing vinyl chloride synthesis catalyst by using ruthenium-containing electroplating waste liquid

The invention discloses a method for preparing a vinyl chloride synthesis catalyst by using a ruthenium-containing electroplating waste liquid. Ruthenium-containing electroplating waste liquid is used as a main raw material, hydrochloric acid or potassium hydroxide is used for adjusting the pH value of the ruthenium-containing electroplating waste liquid to 7, guanidine hydrochloride serving as an auxiliary agent is added, and the mass ratio of ruthenium to guanidine hydrochloride is adjusted to be (0.1-0.5): (8-20); and dipping the carrier active carbon, and drying to obtain the vinyl chloride synthesis catalyst. And recycling of the waste ruthenium salt and mercuration-free operation of the calcium carbide method polyvinyl chloride are realized. 本发明公开了一种用含钌电镀废液制备氯乙烯合成催化剂的方法。以含钌电镀废液为主要原料，用盐酸或者氢氧化钾将含钌电镀废液调整至pH＝7，加入助剂盐酸胍，调整钌|：盐酸胍质量比为0.1-0.5：8-20；将载体活性炭放入浸渍、干燥得氯乙烯合成催化剂。实现废弃钌盐的再利用与电石法聚氯乙烯的无汞化运行。