乙二醇溶液硫酸銨法制備硫酸鉀相圖及工藝研究.pdf

1、合肥工業(yè)大學(xué)碩士學(xué)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(xué)位級別：碩士專業(yè)：化學(xué)工藝指導(dǎo)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