1、合肥工業(yè)大學碩士學位論文乙二醇溶液硫酸銨法制備硫酸鉀相圖及工藝研究姓名：王竹紅申請學位級別：碩士專業(yè)：化學工藝指導教師：張興法20050501StudyonTechnologyandPhaseDiagramofPotassiumSulphatePreparedbyAmmoniumSulphateMethodinEGSolutionAbstraetTheprocessofthetechnologyofpotassiumsulfatebyp

2、otassiumchlorideandammoniumsulphatehasadvantagesoflittleinvestment、abundantrawmaterialsandlowproductioncost，aswellasdisadvantagesofcomplextechnologyandlowreactionconversionBasedonthefactthatsomeorganicsolventscanchangepr

3、opertyofthewaterionsystem，therelationbetweenorganicsolventssuchasmethanoletcandyieldofpotassiumoxideisstudiedwhichindicatesthatethyleneglycol(EG)canbeselectedastheadditiveThephasediagramsofthesystemK、NH4／／804。、C1‘、(CH20H

4、)2H20at25oCaredetermined，andthephaserelationsofthereactionsystemaresimplecommonsaturationandnocompoundisformedThepropertechnologyconditionsoftheproductionprocessareinvestigatedbythesingle—factorandorthogonalexperimentswi

5、ththeresultofthereactiontimeof80min，reactiontemperatureof25℃，ethyleneglycolconcentrationof40％，initialconcentrationofammoniumsulphateof35％，feedratioofKCland(NH4)2S04of19／10Theyieldofpotassiumoxideunderthisconditionis9224％

6、，thequalityofpotassiumsulphatecancomeuptothefirstrankstandardofagriculturalpotassiumsulphateThenewtechnologyofpotassiumsulphatebypotassiumchlorideandammoniumsulphatewiththeexistingconditionofethyleneglycolisdiscussed，and