1.The ammonium chloride is obtained by processing the by-product solution of ammonium chloride in the workshop of coordinative producing alcali.

1.副产的溶液在联碱车间加工成、工艺合理经济划算。

2.Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.

2.以BTEAC(苄三乙)为相转移催剂合成了乙酯。

3.First,brine is reacted with ammonium hydrocarbonate to obtain the sodium hydrocarbonate and the ammonium chloride solution,and then filtrated.

3.卤水制备纯碱分两步进行,第一步用卤水、碳氢反应得到碳氢钠微溶析出和溶液,过滤。