A new method of preparing potassium metaphophate(KPO3) was proposed.NH4H2PO4 and KCl are sufficiently mixed in a certain proportion,and heated for 2h at 450℃-480℃.After the reaction ends,the by-product NH4Cl was mov...A new method of preparing potassium metaphophate(KPO3) was proposed.NH4H2PO4 and KCl are sufficiently mixed in a certain proportion,and heated for 2h at 450℃-480℃.After the reaction ends,the by-product NH4Cl was moved away by sublimation.展开更多
The ultrasonic extraction of phosphoric acid without the stirring of oar was studied,and the influences of reaction temperature,sulfuric acid concentration,liquid solid proportion and reaction time on the acidolysis o...The ultrasonic extraction of phosphoric acid without the stirring of oar was studied,and the influences of reaction temperature,sulfuric acid concentration,liquid solid proportion and reaction time on the acidolysis of phosphate ore were investigated.In addition,we also preliminarily compared the experimental results with ultrasound with that from agitation.展开更多
文摘A new method of preparing potassium metaphophate(KPO3) was proposed.NH4H2PO4 and KCl are sufficiently mixed in a certain proportion,and heated for 2h at 450℃-480℃.After the reaction ends,the by-product NH4Cl was moved away by sublimation.
文摘The ultrasonic extraction of phosphoric acid without the stirring of oar was studied,and the influences of reaction temperature,sulfuric acid concentration,liquid solid proportion and reaction time on the acidolysis of phosphate ore were investigated.In addition,we also preliminarily compared the experimental results with ultrasound with that from agitation.
