CAJ | 학술논문

分别采用环路反应工艺和釜式搅拌工艺,以硬脂酸和三乙醇胺为原料,在酸催化剂的作用下合成了硬脂酸三乙醇胺酯;从反应进程、产品色泽、能源及氮气消耗、废物排放、产品质量等方面对两种工艺进行了对比实验.实验结果表明,在反应温度190℃、n(硬脂酸):n(三乙醇胺)=2、催化剂用量(相对于反应原料的质量分数)0.1%的条件下,与釜式搅拌工艺相比,采用环路反应工艺得到合格硬脂酸三乙醇胺酯所需的反应时间短,产品色泽好,能源及氮气消耗量低,反应过程对环境无污染,产品中单、双酯的含量高.环路反应工艺可完全替代釜式搅拌工艺用于合成硬脂酸三乙醇胺酯.
분별채용배로반응공예화부식교반공예,이경지산화삼을순알위원료,재산최화제적작용하합성료경지산삼을순알지;종반응진정、산품색택、능원급담기소모、폐물배방、산품질량등방면대량충공예진행료대비실험.실험결과표명,재반응온도190℃、n(경지산):n(삼을순알)=2、최화제용량(상대우반응원료적질량분수)0.1%적조건하,여부식교반공예상비,채용배로반응공예득도합격경지산삼을순알지소수적반응시간단,산품색택호,능원급담기소모량저,반응과정대배경무오염,산품중단、쌍지적함량고.배로반응공예가완전체대부식교반공예용우합성경지산삼을순알지.
Triethanolamine stearate(EA) was prepared separately in a loop reaction system and in a stirred tank reactor system by esterification of stearic acid with triethanolamine with an acid catalyst. The performances of esterification in the two reaction systems were compared in respect of reaction temperature, product color and quality, energy and nitrogen consumptions and waste release. The reaction conditions in two reaction systems were kept same, which were: reaction temperature 190 ℃, mole ratio of stearic acid to triethanolamine 2 and catalyst dosage 0. 1% (based on mass of raw materials). In loop reaction system, to achieve product EA of required specifications, shorter reaction time, less consumptions of energy and nitrogen were needed. The color of product was lighter and contents of mono- and di-ester in EA were higher. No pollution was released. The loop reaction system is preferred in producing EA.