1·Insoluble salts are prepared by double decomposition.
不可溶盐可以通过双分解制备。
2·Preparation of potassium dihydrogen phosphate (KDP) by liquid-liquid inhomogeneous double decomposition method was studied in this paper.
本文研究了液液非均相复分解法制备磷酸二氢钾的过程。
3·The technology and mechanism of solution chemistry of preparation of strontium carbonate by double decomposition from celestite concentrate were investigated.
研究了天青石精矿复分解法制备碳酸锶的工艺及溶液化学作用机理。
4·The present invention is related to an improved technological process for producing sodium nitrate by the double decomposition of calcium nitrate and sodium sulfate.
本发明涉及到对用硝酸钙和硫酸钠复分解而得硝酸钠的工艺的改进方法。
5·Compared with that of traditional technology of double decomposition method, the productivity of this technology was raised and the consumption of energy and water reduced greatly.
与传统的复分解法工艺相比，该工艺生产效率明显提高，能耗、水耗显著下降。
6·This article USES the direct double decomposition method to synthesis zinc gluconate, through adding ethyl alcohol to reduce its watery solution solubility and to obtain its crystal.
采用直接复分解法合成葡萄糖酸锌，通过滴加乙醇降低它在水溶液中的溶解度从而得到它的晶体。
7·This paper introduces the method of preparing high pure lithium carbonate by double decomposition method with industrial lithium hydroxide and ammonium carbonate as the raws materials.
以工业氢氧化锂和分析纯碳酸铵为原料，采用复分解法合成高纯碳酸锂。
8·This paper introduces the method of preparing high-purity magnesium hydroxide by double decomposition method with industrial magnesium chloride and barium hydrosulfide as the raws materials.
以工业氯化镁和硫氢化钡为原料，采用复分解法合成高纯氢氧化镁。
9·The process technology of manufacturing potassium dihydrogen phosphate by double decomposition with wet - process phosphoric acid purified by reaction medium circulation was introduced in this paper.
介绍了三聚氰胺反应媒循环法净化湿法磷酸复分解生产磷酸二氢钾的工艺技术，对由两种不同原料出发的工艺路线所得的产品进行了成本比较。
10·Most factories use the carbonization method. Some medium and small factories use the barium carbonate ore method. Only a few factories use the double decomposition method with a relatively high cost.
目前我国大多数厂家采用碳化法，一些中、小型企业采用毒重石法，而只有少数厂家采用成本较高的复分解法生产碳酸钡。