On the basis of the analyses of the phase diagram of the quaternary system Na2SO4–MgSO4–CO(NH2)2–H2O at 60 °C and 25 °C, Na2SO4 and Mg–N compound fertilizers can be produced using CO(NH2)2 as salting-out agent directly. On the basis of the extended Pitzer model of ...
bymcaI~ofKCI—Na2SO?一H2Oquaternarysystemphasedi;弘 mparesproce~flowsandsimplifiedpro- ceSscalculationandputsforwardideal~hcme., Keywords:KzSO.production;phasediagrama~ym;proce~flow;process~alculation 在盐化工业中.由于氯化钾和芒硝的资源都比较丰富,在这种情况下,利用芒硝(N0.?lOH20)和 氯化钾(KCI)...
关键词 白钠镁 矾 硫酸铵 盐析法 相图 Study on the Phase Diagram of NazSO4一MgSO4一(Nlj 【4)2So4一H2O System and Their Application GONG Xuemin · ZHANG Jiayong2 CAO Jilin (1.Hebei Provinc~l Key Lab of Green Chemwal Technology and High Eff ici ent En erg y Saving, College ofChemical...
Solubility data for the Na2CO3 + Na2SO4 + H2O2 + H2O system at 293 K were determined by Schreinmaker's method. The results were used to construct a phase diagram in the oblique projection according to the Jneck method. At constant temperature, when the hydrogen peroxide concentration is ...
关键词:白钠镁矾;相平衡;硫酸镁;硫酸铵;氮镁复肥中图分类号:O642.42;TQ110.2文献标识码:ADOI:10.3969/j.issn.1003-9015.2015.02.003PhaseDiagramofaNa2SO4-MgSO4-(NH4)2SO4-H2OSystemat35℃anditsApplicationGUOHong-fei,GUOBao-man,ZHANGJing,DOUShuai-yong,CAOJi-lin(HebeiProvincialKeyLabofGreenChemical...
关键词:白钠镁矾;相平衡;硫酸镁;硫酸铵;氮镁复肥 中图分类号:O642.42 ;TQ110.2 文献标识码:A DOI :10.3969/j.issn.1003-9015.2015.02.003 Phase Diagram of a Na SO -MgSO -(NH ) SO -H O System at 35℃ and its 2 4 4 4 2 4 2 Application GUO Hong-fei, GUO Bao-man, ZHANG Jing, ...
1.288K 时四元体系 Na+,K+ //Cl-,B4O2-7-H2O 相平衡研究 [J], 李恒;桑世华;孙 明亮;冯浩 2.Na~+,Mg~(2+)//SO_4~(2-),B_4O_7~(2-)-H_2O 交互四元体系 288K 时相平 衡研究 [J], 桑世华;彭江;张振雷;李明 3.Li+,Na+//SO42-,CO32--H2O 交互四元体系 288K 介稳相平衡研究...
采用等温蒸发法研究了四元体系Na2CO3-Na2SO4-Na2B4O7-H2O在273 K时的介稳相平衡及平衡液相的密度. 利用溶解度数据绘制了该四元体系273 K下的相图. 研究结果表明,该四元体系有异成分复盐2Na2SO4·Na2CO3形成. 相图中有2个共饱点, 5条单变量曲线和4个结晶相区. 4个结晶相区分别为盐{Na2CO3·10H2O,:{...
The stereophase diagram consists of six invariant points, eighteen univariant curves, and eight crystallization fields corresponding to sodium sulfate decahydrate (Na2SO4·10H2O), potassium sulfate, lithium sulfate monohydrate, sodium tetraborate decahydrate (borax, Na2B4O7·10H2O), potassium tetr...
10H2O是一种应用较广 的储能物质,通常认为在它相变点32.4~C脱去全部l0个结晶水,并吸收77.06kJ?mol的热量,此热量 即为相变潜热l3],这与无水无机盐在相变点熔化发生相变的过程完全不同.Na2SO,的熔点为884~C, Na2SO4?10H2O的相变点仅有32.4qC,前者是克服正,负离子间的静电引力,故熔点,相变点比较高,而后 ...