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- W2367738891 abstract "Thermal decomposition reaction kinetics of potash feldspar-calcium sulphate-calcium carbonate system added to sodium sulphate and sodium chloride was studied. The results showed that sodium sulphate could effectively promote the thermal decompostion of potash feldspar.When addition of sodium sulphate was 4.76%,reaction temperature decreased to 1050 ℃,apparent activation energy reduced to 81.97 kJ/mol.In the system of potash feldspar with desulfurization ash,when addition of sodium sulphate was 3%,the digestion rate of potassium could be increased remarkably to 71%～74%.The roasts of potash feldspar were analyzed via XRD,the results showed that main phase composition of the roasts were 2CaO·SiO2、K2SO4.It was a kind of compound fertilizer of potassium whose potassium content was more than 5%." @default.
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- W2367738891 date "2007-01-01" @default.
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- W2367738891 title "Research on preparing potassium compound fertilizer via roasting the mixtrue of potash feldspar with desulfurization ash" @default.
- W2367738891 hasPublicationYear "2007" @default.
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