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、、、、。X781A1007-6220200904-0064-0419871042100192008-12-311942-。E-mail:leyan_xia@sina.comElementarydescriptionoffluorineresourceinphosphatefertilizerproductionanditseconomicbenefitsXIAKe-liRoom104Building7CuishanyuanNo.198XinglongStreetNanjingJiangsu210019ChinaAbstractThepresentstatusoffluorineresourceandfluorinechemicalsprocessinginChinaaswellasitsutilizationinphosphatefertilizerindustryarereviewed.Acleanproductiontechnologyforvariousfluorinechemicalssuchassodiumfluorideammoniumbifluoride,cryolitealuminiumfluoridehydrofluoricacidandsilicawhiteetc.anditseconomicbenefitsareintroducedwithrawmaterialsoffluorine-containinggasrecoveredfromphosphatefertilizerproductionandsodiumfluosilicaterecoveredfromWPA.Itispointedoutthatfluorineresourceassociatedwithphophaterockinphosphateindustryhasenormouspotentialeconomicbenefits.Keywordsphosphatefertilizerfluorine-containinggasutilizationfluorinechemicalseconomicbenefits2008。。。1、。。、。。。wF3%。~4000/t~7000/t~10000/t~9000/t~10000/t~9000/t。2。2.13SiF4+3H2O2H2SiF6+H2SiO3↓1◆◆64Phosphate&CompoundFertilizer20097244H2SiF6+2NaClNa2SiF6↓+2HCl21、21tNa2SiF6270.8kgH2SiO3、506.9kgHCl、243.7kgNaCl~100kg、、15t。CaF2、。。2200t5~7kg6kg100%H2SiF613.2t10.45t。2.2SiF4HF。、、。--wP2O5~40%wP2O550%60%。2.35%~17%。2.4~70%。H2SiF6P2O5。。98%~99%70%~80%。2.51450tP2O5~800t~1000tP2O5~900t。P2O5wP2O532%、wF3%3.2t、2880t86.4t。8%6.91t70%60.48t75%45.36t10.45t。362.72t103.43t。10%80%。。3“”。、、。3.13.1.1/。SiF4+2NH4FNH42SiF632HF+SiF4+2NH3NH42SiF64HFSiF4。652009244wP2O5~50%2∶14wP2O5~50%SiF4HFSiF42SiF4NH4F3。NH42SiF6+4NH3+2H2O6NH4F+SiO2↓5、wNH4F~40%NH4F。1。3.1.22NH4F+Na2SiF62NaF↓+NH42SiF66NH42SiF6+4NH3+2H2O6NH4F+SiO2↓7Na2SiF6+4NH3+2H2O2NaF↓+4NH4F+SiO2↓8、、、、wNH4F~40%。2。3.2。3.2.1、。NH4F+NaClNaF↓+NH4Cl92NH4F+Na2SO42NaF↓+NH42SO410、。3。3.2.2、。2NH4FNH4HF2+NH3↑11、。4。3.2.3。。6NH4F+AlOH3NH43AlF6+3NH3↑+3H2O123NH4HF2+AlOH3NH43AlF6+3H2O13、。NH43AlF6+3NaClNa3AlF6↓+3NH4Cl142NH43AlF6+3Na2SO42Na3AlF6↓+3NH42SO415、、。5。6620092443.2.4、。NH43AlF6AlF3+3NH4F↑16。6。3.2.5。NH4F+NaFNaHF2+NH3↑17NaHF2NaF+HF↑18。7。4~70%70%~80%~50%wP2O548%~50%~60%90%90%34%70%×60%×90%×90%~68%wP2O540%40%22.68%70%×40%×90%×90%~45%。、。。“”。5%~17%。24t/a1。111tP2O5wP2O531.9%、wF3.04%3.265t24t/a18-46-011.04tP2O536.04t11.04×3.26510956t36.04×10000×3.04%。70%70%5368t10956×70%×70%8852t5368×188/114。25%~17%8%876.48t10956×8%。124t/a400020t/a124t/a①123456/t8852100002600100004700360026005500360026005200470036002600330036002600②/~1600~3200~4000~3300~3400~3100/t160060030001200600②/~550~800①②③1。67822009244、0.2MPa。2.3213.6nm。1150W。2.41.50mL/min。1.50mL/min1.50mL/min。2.51030.018mg/L。2.621091.5%~104.5%RSD<2%。1。2.71000mg/L觹NCS觹GSBG62008-9021.00%~4.00%2。3ICP-AES、、、、。1.M.1994280-286.2.M.2005.11#2#10/mg·L-15.347.72/mg·L-14410/mg·L-19.0011.90RSD/%1.001.41/%91.5104.58220t/a5kg100%H2SiF6、。1~1400t~550t~2600t~500。2~1100t~550t~700。。、。3~5。5。、、。。“”、。、。1、.、、M.1997.67!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!20092442/mg·L-10.501.004.00/mg·L-10.480.994.15/%4.001.003.75/mg·L-1/mg·L-1/%5.008.005.178.213.402.62①6。
本文标题:我国磷肥生产中氟资源的利用及其经济效益
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