A method for preparing organic products from aqueous solutions, such as waste or byproduct liquid streams and waste or byproduct gas or vapor streams, uses phase transfer catalysis to transfer a chemical species in low concentration from the aqueous solution to the organic phase or the aqueous-organic interface. The system has little or no organic solvent, and the organic phase contains an electrophile which participates in the reaction. In one embodiment, the aqueous solution is contacted with the electrophile and a phase transfer catalyst and, optionally, a pH adjusting agent in the event that the chemical species in the aqueous solution is not sufficiently ionized to react with the electrophile, and optionally an organic solvent. A method for continuously converting a chemical species involves this contacting step, separating the phases, then dividing the organic phase into the product, the phase transfer catalyst, and the optional organic solvent.
一种从
水溶液中制备有机产品的方法,例如废液流或副产液流以及废气或蒸汽流,使用相转移催化将低浓度的
化学物种从
水相转移到有机相或
水有机界面。该系统几乎不含有机溶剂,有机相含有参与反应的亲电试剂。在一种实施例中,将
水溶液与亲电试剂、相转移催化剂、可选的pH调节剂以及有机溶剂(可选)接触。一种连续转化
化学物种的方法包括这个接触步骤,将两相分离,然后将有机相分成产品、相转移催化剂和可选的有机溶剂。