The original batch recovery process was replaced by the process of neutralization setting and continuous rectification.
采用中和分层与连续精馏相结合的工艺取代了原有的间歇回收工艺。
The raw product from hydrogenation is continuously rectified. 1,4-Butanediol from continuous rectification is subject to PBT polymerization test, and is found to be up to the polymerization grade.
对加氢所得的1，4-丁二醇粗产品进行了连续精馏和PBT聚合试验，表明试验所得的1，4-丁二醇产品达到了聚合级要求。
The preparation of cyclopentadiene from dicyclopentadiene by liquid phase cracking method with the device of continuous reaction-rectification was studied.
本文研究了采用连续反应-精馏装置，由双环戊二烯进行液相热分解制备环戊二烯的工艺方法。
The preparation of cyclopentadiene from dicyclopentadiene by liquid phase cracking method with the device of continuous reaction-rectification was studied.
本文研究了采用连续反应-精馏装置，由双环戊二烯进行液相热分解制备环戊二烯的工艺方法。
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