Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄基三乙基氯化铵)为相转移催化剂合成了异烟酸乙
。
砂,氯化铵Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄基三乙基氯化铵)为相转移催化剂合成了异烟酸乙
。
First,brine is reacted with ammonium hydrocarbonate to obtain the sodium hydrocarbonate and the ammonium chloride solution,and then filtrated.

制备纯碱分两步进行,第
步用
、
酸氢铵反应

酸氢钠微溶析出和氯化铵溶液,过滤。
The ammonium chloride is obtained by processing the by-product solution of ammonium chloride in the workshop of coordinative producing alcali.
副产的氯化铵溶液在联碱车间加工成氯化铵、工艺合理经济划算。
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