[EN] METHOD OF BISPHENOL MANUFACTURE<br/>[FR] PROCÉDÉ DE FABRICATION DE BISPHÉNOL
申请人:SABIC GLOBAL TECHNOLOGIES BV
公开号:WO2017100164A1
公开(公告)日:2017-06-15
An improved method of manufacture of a bisphenol comprises heating a monohydric phenol to a first temperature sufficient to melt the monohydric phenol; adding a carbonyl compound to 2.0-3.0 molar equivalents, based on the moles of carbonyl compound, of the monohydric phenol in the presence of catalytic amounts of an organosulfonic acid catalyst and a reaction promoter at a second temperature sufficient to maintain unreacted monohydric phenol in a molten state; increasing the temperature to a third temperature higher than the second temperature, and mixing for a time sufficient to produce the bisphenol in a yield of 80 to 100%, based on the amount of carbonyl compound; wherein mineral acids, Lewis acids, and ion exchange resins are not used. The method is applicable to the manufacture of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, a useful intermediate for the manufacture of bifunctional poly(phenylene ether)s.
一种改进的双酚制造方法包括将一种一元酚加热至足以使其熔化的第一温度;在存在催化量的有机磺酸催化剂和反应促进剂的情况下,向一元酚中加入2.0-3.0摩尔当量的羰基化合物,基于羰基化合物的摩尔数,在足以保持未反应的一元酚处于熔化状态的第二温度;将温度提高至高于第二温度的第三温度,并混合一段足以产生双酚的时间,其收率为80%至100%,基于羰基化合物的数量;其中不使用矿酸、路易斯酸和离子交换树脂。该方法适用于制造2,2-双(3,5-二甲基-4-羟基苯基)丙烷,这是制造双功能聚(苯醚)的有用中间体。