a "synthesizing of ethylene chlorohydrin through hydrochloric acid and epoxyethane" method, developed by the jinxi research institute (rici), was granted an invention patent by the state intellectual property office recently.
ethylene chlorohydrin is a critical material for polysulfide rubber that is widely used as an intermediate material in medicines, farm chemicals, and dyes.
for this patented technology, hydrochloric acid is used as a reactant with epoxyethane to synthesize ethylene chlorohydrin. a catalytic agent was developed for low by-reaction and high yields. the amount of raw materials used is lower than that in traditional hydrogen chloride technology. the entrainer is purified and rectified to produce a high concentration of ethylene chlorohydrin. a continuous process was adopted along the entire course of the synthesis so that the reaction is mild and the operations easy to handle. the industrialization process ran smoothly so the product quality could reach company standards and the standard of similar products sold abroad, so that it could be widely used in the preparing of polysulfide rubber and other intermediates.
this technique could push the synthesizing of ethylene chlorohydrin in china to a much higher level, so, it is very important to raise the technical level and save energy and reduce emissions.
