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公开(公告)号：US06635788B1
公开(公告)日：2003-10-21
申请号：US10248155
申请日：2002-12-20
IPC分类号： C07C3916
摘要： A method for the manufacture of bisphenols comprises introducing a combined feed stream comprising a feed stream and a recycle stream into a reactor system comprising at least one reactor containing a catalytic proportion of an acid catalyst and wherein the combined feed stream comprises a carbonyl compound and a stoichiometric excess of phenol; removing from the reactor system a reactor effluent; splitting the reactor effluent into a crystallization feed stream and an effluent recycle stream; extracting from said crystallization feed stream a bisphenol adduct, remainder comprising a mother liquor stream; dehydrating said mother liquor stream and said effluent recycle stream in a dehydrator wherein excess water and carbonyl compound are removed; and recycling the dehydrated mother liquor and the dehydrated effluent recycle stream back to the combined feed stream to effect improved production of p,p-bisphenol, along with increased reactor selectivity and reduced promoter quantities.
摘要翻译： 制备双酚的方法包括将包含进料流和再循环料流的组合进料流引入包含至少一个含有催化剂比例的酸催化剂的反应器的反应器系统中，其中组合进料流包含羰基化合物和 化学计量过量的苯酚; 从反应器系统中除去反应器流出物; 将反应器流出物分解成结晶进料流和流出物再循环流; 从所述结晶进料流中提取双酚加合物，其余包含母液流; 在脱水器中脱水所述母液流和所述废水再循环流，其中除去过量的水和羰基化合物; 并将脱水的母液和脱水的废液再循环物流再循环回到组合的进料流中，以改善p，p双酚的生产，同时增加反应器的选择性和减少的助催化剂量。
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公开(公告)号：US06858759B2
公开(公告)日：2005-02-22
申请号：US10639929
申请日：2003-08-12
摘要： A method for the manufacture of bisphenols comprises introducing a combined feed stream comprising a feed stream and a recycle stream into a reactor system comprising at least one reactor containing a catalytic proportion of an acid catalyst and wherein the combined feed stream comprises a carbonyl compound and a stoichiometric excess of phenol; removing from the reactor system a reactor effluent; splitting the reactor effluent into a crystallization feed stream and an effluent recycle stream; extracting from said crystallization feed stream a bisphenol adduct, remainder comprising a mother liquor stream; dehydrating said mother liquor stream and said effluent recycle stream in a dehydrator wherein excess water and carbonyl compound are removed; and recycling the dehydrated mother liquor and the dehydrated effluent recycle stream back to the combined feed stream to effect improved production of p,p-bisphenol, along with increased reactor selectivity and reduced promoter quantities.
摘要翻译： 制备双酚的方法包括将包含进料流和再循环料流的组合进料流引入包含至少一个含有催化剂比例的酸催化剂的反应器的反应器系统中，其中组合进料流包含羰基化合物和 化学计量过量的苯酚; 从反应器系统中除去反应器流出物; 将反应器流出物分解成结晶进料流和流出物再循环流; 从所述结晶进料流中提取双酚加合物，其余包含母液流; 在脱水器中脱水所述母液流和所述废水再循环流，其中除去过量的水和羰基化合物; 并将脱水的母液和脱水的废液再循环物流再循环回到组合的进料流中，以改善p，p双酚的生产，同时增加反应器的选择性和减少的助催化剂量。
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公开(公告)号：US06787633B2
公开(公告)日：2004-09-07
申请号：US10065062
申请日：2002-09-13
IPC分类号： C08G6538
CPC分类号： C08G65/46
摘要： A method of precipitating a poly(arylene ether) includes preparing a poly(arylene ether) solution comprising a poly(arylene ether) and a solvent, combining the poly (arylene ether) solution with an antisolvent to form a poly(arylene ether) dispersion comprising a poly(arylene ether) solid, separating the poly(arylene ether) solid from the poly(arylene ether) dispersion to form an isolated poly(arylene ether) solid, determining a particle size distribution of the poly(arylene ether) solid prior to separating the poly(arylene ether) solid from the poly(arylene ether) dispersion, and adjusting a precipitation parameter in response to the particle size distribution. Although the measured particle size distribution is very different from the particle size distribution of the solid poly(arylene ether) ultimately isolated, it is useful for controlling the process. The method may be automated to rapidly adjust precipitation conditions in response to the particle size distribution measurements. An apparatus for carrying out the method is also described.
摘要翻译： 沉淀聚（亚芳基醚）的方法包括制备包含聚（亚芳基醚）和溶剂的聚（亚芳基醚）溶液，将聚（亚芳基醚）溶液与抗溶剂结合以形成聚（亚芳基醚）分散体 包括聚（亚芳基醚）固体，从聚（亚芳基醚）分散体中分离聚（亚芳基醚）固体以形成分离的聚（亚芳基醚）固体，以前测定聚（亚芳基醚）固体的粒度分布 从聚（亚芳基醚）分散体中分离聚（亚芳基醚）固体，并根据粒度分布调节沉淀参数。 虽然测量的粒度分布与最终分离的固体聚（亚芳基醚）的粒度分布非常不同，但是对于控制该方法是有用的。 该方法可以自动化以响应于粒度分布测量快速调节沉淀条件。 还描述了用于执行该方法的装置。
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公开(公告)号：US07122613B1
公开(公告)日：2006-10-17
申请号：US10248147
申请日：2002-12-20
申请人： Rudy Francois Alain Jos Peemans , Eugène Theodorus Wilhelmus Maria Schipper , Hendricus Franciscus Zirkzee , Jan Henk Kamps
发明人： Rudy Francois Alain Jos Peemans , Eugène Theodorus Wilhelmus Maria Schipper , Hendricus Franciscus Zirkzee , Jan Henk Kamps
IPC分类号： C08G64/00
摘要： A method for the manufacture of a polycarbonate which comprises reacting a carbonate precursor with a dihydroxy compound in the presence of an aqueous base in an inert organic solvent optionally containing a molecular weight regulator to form an oligomeric polycarbonate, wherein the reaction between the dihydroxy compound and the carbonate precursor is about 80 to about 99% completed; removing the inert organic solvent and the aqueous base to isolate the oligomeric polycarbonate; and transesterifying the isolated oligomeric polycarbonate to form a polymeric polycarbonate at a temperature and pressure effective to remove trace amounts of residual solvent. This method eliminates some of the problems of the prior art such as the removal of solvent from high molecular weight polycarbonate, which is both cumbersome, energy intensive and expensive.
摘要翻译： 一种制备聚碳酸酯的方法，其包括使碳酸酯前体与二羟基化合物在含水碱存在下在任选含有分子量调节剂的惰性有机溶剂中反应形成低聚聚碳酸酯，其中二羟基化合物与 碳酸酯前体完成约80至约99％; 除去惰性有机溶剂和碱水溶液以分离低聚聚碳酸酯; 并将分离的低聚聚碳酸酯酯交换成在有效去除痕量残余溶剂的温度和压力下形成聚合物聚碳酸酯。 该方法消除了现有技术中的一些问题，例如从高分子量聚碳酸酯中除去溶剂，这是繁琐的，耗能的和昂贵的。
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