硫酸钾生产工艺综述

,,,(,300130):,:;;:TQ131.1:A:1001-2214(2006)02-0012-03ReviewofPotassiumSulphateProductionXIEYing-hui,ZHUHua-jing,YUANJun-sheng,HUOChun-mei(SchoolofChemicalEngineering,HebeiUniversityofTechnology,Tianjin300130,China)Abstract:Severalprocessmethods,characteristicsandtheprogressofmaintechnologyforproducingpotassiumsulphatewereintroducedinbrief.Anewmethodofproducingcomparativelypurepotassiumsulphatefromseawaterusinginartificialzeoliteasthemediumofionexchangewasespeciallyintroduced.Keywords:potassiumsulphate;technics;review:2005-10-08:(1958-),,,,1,,,,,,[1],,,,,,,,,,2:,10%15%;,10%;,,75%2.121111,,,[2],,,,,21352©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[2,3]:,NaCl(MgSO4H2O)(K2SO42MgSO4),,1566(K2SO4MgSO46H2O):2(K2SO42MgSO4)+2KCl+18H2O3(K2SO4MgSO46H2O)+MgCl22(MgSO4H2O)+2KCl+4H2OK2SO4MgSO46H2O+MgCl2KClNaClNaCl,25K+Mg2+//Cl-SO2-4-H2OKClH2O,,:K2SO4MgSO46H2O+2KCl2K2SO4+MgCl2+6H2O,,,,,21113:,;;,;,,,;;,;,,[2]:(1);(2),,2.2(K2SO44MgSO42CaSO42H2O)(K2SO4MgSO43H2O)(K2SO4Al2(SO4)32Al2O36H2O)[4],,,,2.3,:2131119MannheimVereim,[5,6],,:2KCl+H2SO4()K2SO4+2HCl,:,2KCl+H2SO4()KHSO4+HCl+Q,KHSO4+KClK2SO4+HCl-Q:(W(K2O)50%51%),,:,,,,,,21312,,[7,8]:31352©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:2131311[5],KHSO4,,:KCl+H2SO4KHSO4+HClKHSO4+KCl+NH3H2OK2SO4+NH4Cl+H2O;;,2131312,,[6]:(NH4)2SO4+2KClK2SO4+2NH4Cl,,,,,,2131313[5,6],,,:CaSO42H2O+2KClK2SO4+CaCl2+2H2O,,:CaSO42H2O+2NH4HCO3(NH4)2SO4+CaCO3+CO2+3H2O(NH4)2SO4+2KClK2SO4+2NH4Cl[9],:,,;;,,,2131314Na2SO4KClK2SO4H2O,,,:(25):Na2SO410H2O+KCl+H2O3K2SO4Na2SO4+(60100):3K2SO4Na2SO4+KCl+H2OK2SO4+-H2ONaCl+[10]:;:(3K2SO4Na2SO4),,2112.7,;,,3,,,Na+K+;,,NH+4K+,(35)41352©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2),(3),(4),,(5),[][1].[M].[2].[M].(14)NH+4,K+;,Na+,,,,:NaZ+K+()=KZ+Na+()2KZ+(NH4)2SO4=K2SO4+2NH4ZNH4Z+NaCl=NaZ+NH4ClK+,,,,4,K2SO4,:(1),;(2),;(3),;(4),,,,[][1],1()[M]1:,1996.160-169.[2],1[J].,2004,32(1):29-31.[3]1[D].,2002.[4]1[D].,2002.[5],,1[J].(),2000,21(2):178-181.[6]1[J].,2000,(5):16-22.[7]1[J].,1997,(1):23-28.[8]1[J].,2002,10(3):83-93.[9]1[J].,2001,21(1):29-32.[10]1[J].,2003,13(4):55-56.,,,10030,,2500t,200t,5,60t,260t2.2,60t1.3,2006,9,160t,653352©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.