。、、、。TQ124.3A1007-6220200903-0062-027100692008-09-241969-。E-mailjinsong.cao@yahoo.com.cnComparisonofseveralmethodsforproductionofsodiumfluorosilicateCAOJin-songYAORui-qingSchoolofChemicalEngeering,NorthwestUniversity,Xi'anShaanxi710069,ChinaAbstractAsanimportantby-productinphosphateandcompoundfertilizerindustrysodiumfluosilicatearesummarizedinitsproductionmethodsfromrawmaterialsoperationandsalt-addingmethods.Thecharacteristicsofthedryandwetprocessesofsodiumsulfatemethodarediscussedemphaticallythemixedprocessofsodiumsulfatemethodisconsideredgoodprospectsinbotheconomyandenvironmentprotection.Keywordssodiumfluosilicateproductionmethodsodiumsulfatemixedmethod11.1、。6500t400t。3%90%。。、。。1.21、、。2。。H2SiF6+2NaClNa2SiF6↓+2HClH2SiF6+Na2SO4Na2SiF6↓+H2SO4、、、、Cl-3。。。1.31、。62◆◆Phosphate&CompoundFertilizer20095243。1。1.4、1。。2。2。。3。3。①。②96%80%。③。15%20℃6℃、。④。⑤80%95%。⑥。①。②7m310%15%、50kg。③、。2。。1.J.1999212-13.2.J.199611451-52.3.J.200217231-32.4.、M.19991138-1140.234632009243