磷酸铝(AlPO4)是一种用途广泛的材料,在建筑、耐火材料、化工等方面具有广泛的应用前景。以磷硅渣[主要成分为Ca3(PO4)2、Al2O3、SiO2和V2O5等]为原料制备磷酸铝的工艺流程如图所示:浓硫酸生石灰NaOH溶液NaOH溶液↓磷硅渣一酸浸→酸浸液一→调节pH→滤液→磷铝钒分离粗磷酸铝→碱浸-AIPO浸渣滤渣1含钒液滤...
磷酸铝(AlPO4)是一种用途广泛的材料,在建筑、耐火材料、化工等方面具有广泛的应用前景。以磷硅渣[主要成分为Ca3(PO4)2、Al2O3、SiO2和V2O5等]为原料制备磷酸铝的工艺流程如图所示:浓硫酸生石灰NaOH溶液NaOH溶液↓磷硅渣一酸浸→酸浸液一→调节pH→滤液→磷铝钒分离粗磷酸铝→碱浸-AIPO浸渣滤渣1含钒液滤...
(4)加NaOH时粗磷酸铝溶解生成可溶性溶质为NaAlO2、Na3PO4; (5)在pH、反应温度与时间对碱浸时固相中P、Al含量的影响如图中,寻找碱浸时固相中P、Al 含量w%小时就为最优反应条件; (6)加热磷酸二氢铵与氧化铝混合物生成AlPO4、NH3和H2O。 (1)酸浸中磷元素主要转化为H3PO4,该反应的化学方程式为Ca3(PO4)2...
(7)从U形管导出的尾气的处理方法是用NaOH溶液吸收. 7.下列离子方程式书写正确的是( ) A. 氯气通入冷的氢氧化钠溶液中:2Cl2+2OH-═3Cl-+ClO-+H2O B. 碳酸钡中加入稀硫酸:BaCO3+2H+═Ba2++CO2↑+H2O C. 在澄清石灰水中通入过量二氧化碳 OH-+CO2═HCO3- D. 碳酸氢铵溶液中加入过量氢氧化钠溶液:...
KCl + NaHCO3 = NaCl + CK2O3 + CO2 + H2O Na2Co3 + H2O = NaOH + H2Co3 FeCl3 + NaS = Fe2S3 + NaCl2 Na2Ca = Na + Ca C3H6 + HCl = C3H7Cl (2KClO3) = (2KCl) + (3O2) CUFeS2 + O2 = SO2 + CUO + FeO C2H6O + CaCO3 = CO2 + H2O + Ca 近期平衡的方程式计算...
以磷硅渣[主要成分为Ca3(PO4)2、Al2O3、SiO2 和V2O5 等]为原料制备磷酸铝的工艺流程如图所示:浓硫酸生石灰NaOH溶液NaOH溶液磷硅渣一一酸浸→酸浸液一调节pH→滤液一磷铝钒分离→粗磷酸铝一碱浸--→AIPO4浸渣滤渣1含钒液滤渣2请回答下列问题:(1)浸渣中含有SiO2,试写出SiO2的一种重要用途___;酸浸...
(4)碱浸时,粗磷酸铝发生的反应为AlPO4+4NaOH=NaAlO2+Na3PO4+2H2O,则可溶性溶质分别是NaAlO2、Na3PO4,故答案为:NaAlO2、Na3PO4; (5)由流程可知,碱浸时,固相中P、Al含量要低,故最优反应条件是pH=12、温度为80℃、时间为1h,故答案为:pH=12、温度为80℃、时间为1h; (6)由信息可知,该反应无化合价变化...
Step 2: Multiply coefficients for compounds to balance out each element For each element that is not equal, try to balance it by adding more of it to the side with less. Sometimes there may be multiple compounds with that element on one side, so you'll need to use your ...
NaOH, Na 3PO 4 and NH 4HF 2 were shown to decompose AlPO 4 while the solubility in CH 3COOH, NaCl, and HNO 3 was negligible. However, the solubility in HCl was greater than in H 3PO 4 and AlPO 4 was the stable phase. Systematic solubility studies in HCl were conducted and it ...
NaH2PO4 + NaOH = Na3PO4 + H2O NaCl + Mg(NO3)2 = NaNO3 + MgCl2 CoCl2 + NaNO3 = Co(NO3)2 + NaCl HCl + Mg = MgCl2 + H2 H2SO4 + Pb(NO3)2 = PbSO4 + HNO3 (NH4)3PO4 + Na2SO4 = (NH4)2SO4 + Na3PO4 K2SO4 + SrI2 = KI + SrSO4 (NH4)2S + HCl ...