聚氯乙烯
聚氯乙烯
취록을희
POLYVINYL CHLORIDE
2011年
10期
1-5
,共5页
聚氯乙烯%电石法%氯化汞催化剂%循环利用%污染防治
聚氯乙烯%電石法%氯化汞催化劑%循環利用%汙染防治
취록을희%전석법%록화홍최화제%순배이용%오염방치
PVC%calcium carbide method%mercuric chloride catalyst%recycling%pollution control
介绍了电石法聚氯乙烯生产过程中汞的流向及聚氯乙烯发展面临的巨大挑战。探讨和分析了汞减排路线：①使用高品质低汞催化剂；②发挥除汞器的作用，力争将汞污染控制在最短流程；③应用组合吸收一常规解吸一深度解吸工艺，杜绝含汞废酸污染；④采用硫化钠类沉降剂处理含汞废水。阐述了无汞催化剂的研发现状。
介紹瞭電石法聚氯乙烯生產過程中汞的流嚮及聚氯乙烯髮展麵臨的巨大挑戰。探討和分析瞭汞減排路線：①使用高品質低汞催化劑；②髮揮除汞器的作用，力爭將汞汙染控製在最短流程；③應用組閤吸收一常規解吸一深度解吸工藝，杜絕含汞廢痠汙染；④採用硫化鈉類沉降劑處理含汞廢水。闡述瞭無汞催化劑的研髮現狀。
개소료전석법취록을희생산과정중홍적류향급취록을희발전면림적거대도전。탐토화분석료홍감배로선：①사용고품질저홍최화제；②발휘제홍기적작용，력쟁장홍오염공제재최단류정；③응용조합흡수일상규해흡일심도해흡공예，두절함홍폐산오염；④채용류화납류침강제처리함홍폐수。천술료무홍최화제적연발현상。
The fate of mercury in production of PVC by calcium carbide method was introduced as well as the challenges for the development of PVC. Methods to decrease the loss of mercury were discussed and analyzed, which included as follows： Oadopting high-quality low mercury catalyst; （1） exerting the function of mercury eliminators in order to control the mercury pollution within the shortest process flow; （2） adopting combined absorption-conventional adsorption-depth adsorption process to eliminate the pollution of mercury-containing waste acid; （3） treating mercury- containing wastewater with sodium sulfide sedimentation agents. The current research situation of non-mercury catalysts were described.
