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公开(公告)号：US4801664A
公开(公告)日：1989-01-31
申请号：US149760
申请日：1988-01-29
申请人： Afif M. Nesheiwat , Guy Senatore , Fred T. Sherk
发明人： Afif M. Nesheiwat , Guy Senatore , Fred T. Sherk
CPC分类号： C08G75/0281 , C08G75/0277 , C08G75/0295
摘要： In one embodiment, a process is provided for treating virgin poly(arylene sulfide) resins, wherein a heated polymer slurry, comprising a virgin poly(arylene sulfide) resin and water is contacted by an acidic treating solution comprising at least an acidic component, wherein the amount of the acidic component in the acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin. In a second embodiment, the process is provided for treating a virgin poly(arylene sulfide) resin, wherein the virgin poly(arylene sulfide) resin is slurried with an aqueous acidic treating solution comprising an acidic component and an aqueous component and the concentration of the acidic component in the aqueous acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin. The polymer slurry is then heated to an elevated temperature, below the melting point of the virgin resin, while in the substantial absence of a gaseous oxidizing atmosphere.
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公开(公告)号：US4524200A
公开(公告)日：1985-06-18
申请号：US611573
申请日：1984-05-18
申请人： Fred T. Sherk , Afif M. Nesheiwat , Guy Senatore
发明人： Fred T. Sherk , Afif M. Nesheiwat , Guy Senatore
CPC分类号： C08J3/12 , C08G75/02 , C08J2381/02
摘要： Granular poly(arylene sulfide) is recovered from a slurry comprising granular poly(arylene sulfide), polar organic solvent, alkali metal halide, poly(arylene sulfide) oligomers, untreated reactants in the water by heating the slurry under conditions to evaporate polar organic solvent, water and volatile impurities at a temperature below the normal boiling point of the polar organic solvent to produce a dry mixture containing poly(arylene sulfide), poly(arylene sulfide) oligomers and alkali metal halide which is then reslurried with water to produce a reslurried mixture containing aqueous alkali metal halide solution and dispersed poly(arylene sulfide) oligomers with the reslurried mixture being filtered through a coarse screen to recover granular poly(arylene sulfide) thereon and pass a filtrate containing poly(arylene sulfide) oligomers and aqueous alkali metal halide solution therethrough. The filtrate can be further treated by filtering through a filter aid coated vacuum filter to recover poly(arylene sulfide) oligomers thereon and pass an aqueous alkali metal halide solution therethrough as filtrate.
摘要翻译： 从含有聚（亚芳基硫醚），极性有机溶剂，碱金属卤化物，聚（亚芳基硫醚）低聚物的浆料中回收颗粒状聚（亚芳基硫醚），在水中通过在蒸发极性有机溶剂的条件下加热浆料 ，水和挥发性杂质在低于极性有机溶剂的正常沸点的温度下产生含有聚（亚芳基硫醚），聚（亚芳基硫醚）低聚物和碱金属卤化物的干燥混合物，然后将其与水一起重新制备， 含有碱金属卤化物水溶液和分散的聚（亚芳基硫醚）低聚物的混合物，其中重新制备的混合物通过粗筛过滤，以在其上回收粒状聚（亚芳基硫醚），并通过含有聚（亚芳基硫醚）低聚物和碱金属卤化物水溶液的滤液 溶液通过。 可以通过过滤助滤剂真空过滤器进一步处理滤液，以在其上回收聚（亚芳基硫醚）低聚物，并通过作为滤液的碱金属卤化物水溶液。
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3.发明授权Recovering poly(arylene sulfide) oligomers from a poly(arylene sulfide) reaction mixture 失效从聚（亚芳基硫醚）反应混合物中回收聚（亚芳基硫醚）低聚物
公开(公告)号：US4730034A
公开(公告)日：1988-03-08
申请号：US6410
申请日：1987-01-23
申请人： Afif M. Nesheiwat , Guy Senatore , Fred T. Sherk
发明人： Afif M. Nesheiwat , Guy Senatore , Fred T. Sherk
CPC分类号： C08G75/0281 , C08G75/0259
摘要： Poly(arylene sulfide) oligomers are recovered in a process comprising steps of:(a) dehydration of an aqueous admixture of alkali metal hydroxide such as sodium hydroxide, and alkali metal bisulfide such as sodium bisulfide, in a polar organic solvent such as N-methyl-2-pyrrolidone (NMP), wherein the molar ratio of alkali metal hydroxide to alkali metal bisulfide is about 0.90:1 to about 1.05:1 prior to dehydration and 0.99:1 to about 1.05:1 after dehydration;(b) reaction of at least one polyhalo-substituted aromatic compound such as p-dichlorobenzene with the mixture from step (a) under polymerization conditions to produce a reaction mixture;(c) addition of a phase separation agent such as water, to the reaction mixture to produce a phase-separated poly(arylene sulfide) mixture;(d) cooling the mixture from step (c) to produce a slurry of particulate poly(arylene sulfide) and poly(arylene sulfide) oligomers in a liquid;(e) separating particulate poly(arylene sulfide) from the slurry of step (d) leaving a dispersion of poly(arylene sulfide) oligomers in a liquid; and(f) filtering the dispersion of step (e) to recover the poly(arylene sulfide) oligomers therefrom.
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公开(公告)号：US4882418A
公开(公告)日：1989-11-21
申请号：US284169
申请日：1988-12-13
申请人： Guy Senatore , Afif M. Nesheiwat , Fred T. Sherk
发明人： Guy Senatore , Afif M. Nesheiwat , Fred T. Sherk
IPC分类号： C08G75/02
CPC分类号： C08G75/0231 , C08G75/0281 , C08G75/0286
摘要： A process is provided for removing solid and liquid impurities from a particulate arylene sulfide polymer recovered from a polymerization reaction mixture slurry, without significantly discoloring the resulting washed polymer. The process of this invention comprises the steps of: (a) preparing a first slurry, wherein the solid component thereof comprises a particulate arylene sulfide polymer recovered from a reaction mixture slurry, and wherein the liquid component thereof comprises a mixture of water and a reducing agent; (b) heating the first slurry to a temperature of at least about 185.degree. C. (365.degree. F.) but below the melting point of the particulate polymer, to wash the polymer contained therein; (c) cooling the first slurry to a temperature below about 100.degree. C. (212.degree. F.), to form a second slurry, wherein the solid component thereof comprises a washed particulate arylene sulfide polymer; and (d) recovering the washed particulate arylene sulfide polymer from the second slurry.
摘要翻译： 提供一种从聚合反应混合物浆料中回收的颗粒状亚芳基硫醚聚合物中除去固体和液体杂质的方法，而不会使得到的洗涤聚合物显着变色。 本发明的方法包括以下步骤：（a）制备第一浆料，其中其固体组分包含从反应混合物浆料中回收的颗粒状亚芳基硫醚聚合物，并且其中其液体组分包括水和还原剂的混合物 代理人 （b）将第一浆料加热到至少约185℃（365°F）但低于颗粒状聚合物熔点的温度，以洗涤其中所含的聚合物; （c）将第一浆料冷却至低于约100℃（212°F）的温度，以形成第二浆料，其中其固体组分包含经洗涤的颗粒亚芳基硫醚聚合物; 和（d）从第二浆料中回收洗涤的颗粒状亚芳基硫醚聚合物。
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公开(公告)号：US4510316A
公开(公告)日：1985-04-09
申请号：US385756
申请日：1982-06-07
IPC分类号： C07C37/72 , C07C27/00 , C07C39/04 , C07C67/00 , C07D207/26 , C07D207/263 , C07D207/267
CPC分类号： C07D207/267
摘要： Phenol is extracted with a chlorinated aromatic extractant, such as p-dichlorobenzene, from an aqueous mixture containing phenol and N-methylpyrrolidone. In an embodiment of this invention the purified N-methylpyrrolidone is recycled for use in a poly(phenylene sulfide) polymerization process.
摘要翻译： 苯酚用含有苯酚和N-甲基吡咯烷酮的含水混合物用氯化芳族萃取剂如对二氯苯提取。 在本发明的一个实施方案中，纯化的N-甲基吡咯烷酮被再循环用于聚（苯硫醚）聚合方法中。
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6.发明授权
公开(公告)号：US4529818A
公开(公告)日：1985-07-16
申请号：US502032
申请日：1983-06-07
申请人： Afif M. Nesheiwat , Fred T. Sherk
发明人： Afif M. Nesheiwat , Fred T. Sherk
IPC分类号： C07C101/04
CPC分类号： C07C227/22
摘要： A process for producing alkali metal aminobutyrate or alkali metal aminobutyrate-alkali metal bisulfide complex by contacting an aqueous alkali metal hydroxide with NMP and optionally alkali metal bisulfide in a stirred reactor under reaction conditions to produce a predominantly one-phase system and maintaining these reaction conditions while passing the one-phase system through a disrupted flow tube reactor to complete the reaction. Dehydrating the reaction product in a two-stage dehydration process using a higher temperature in the second stage.
摘要翻译： 通过在搅拌反应器中在反应条件下使碱金属氢氧化物水溶液与NMP和任选的碱金属二硫化物接触来制备氨基丁酸碱金属或碱金属氨基丁酸盐 - 碱金属二硫化物络合物的方法，以产生主要的一相体系并维持这些反应条件 同时使单相系统通过破碎的流管反应器完成反应。 在第二阶段使用较高温度的两步脱水过程中使反应产物脱水。
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公开(公告)号：US4451643A
公开(公告)日：1984-05-29
申请号：US456185
申请日：1983-01-06
CPC分类号： C08G75/0272 , C08G75/0281
摘要： A method for producing a polymer in which lithium hydroxide, optionally also employing either lithium chloride or lithium acetate, is contacted with N-methyl-pyrrolidone in the presence of lithium halide to produce a reaction product mixture containing lithium N-methyl-4-aminobutyrate with this reaction mixture then being contacted with hydrogen sulfide and polyhalo aromatic compound in the presence of additional N-methyl-pyrrolidone under conditions to form a polymer. Lithium halide produced as a by-product is substantially recovered from the reaction mixture, converted to lithium hydroxide and can be recycled to the process.
摘要翻译： 一种生产聚合物的方法，其中任选地还使用氯化锂或乙酸锂的氢氧化锂在卤化锂的存在下与N-甲基 - 吡咯烷酮接触以产生含有N-甲基-4-氨基丁酸锂的反应产物混合物 然后在另外的N-甲基吡咯烷酮的存在下，使该反应混合物与硫化氢和多卤代芳族化合物接触，形成聚合物。 作为副产物生产的卤化锂基本上从反应混合物中回收，转化成氢氧化锂并可循环使用。
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公开(公告)号：US4376196A
公开(公告)日：1983-03-08
申请号：US194305
申请日：1980-10-06
CPC分类号： C08G75/0295 , C08G75/0281
摘要： Arylene sulfide polymers containing ash-forming impurities or materials are purified by contacting an aqueous mixture of such polymer with molecular oxygen under conditions sufficient to reduce the ash-forming impurities and concurrently at least partially cure the polymer.
摘要翻译： 含有形成灰分的杂质或材料的亚芳基硫醚聚合物通过使这种聚合物的水性混合物与分子氧在足以降低成灰杂质并同时至少部分固化聚合物的条件下接触来纯化。
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公开(公告)号：US4167472A
公开(公告)日：1979-09-11
申请号：US900390
申请日：1978-04-26
申请人： James E. Dick , Fred T. Sherk , Lewis E. Drehman
发明人： James E. Dick , Fred T. Sherk , Lewis E. Drehman
CPC分类号： C07C15/00 , C07C5/417 , C10G2400/30
摘要： A process for treating a hydrocarbon composition containing both straight chain and non-straight chain hydrocarbons in which said hydrocarbon composition is separated into a straight chain hydrocarbon-rich fraction and a non-straight chain hydrocarbon-rich fraction, non-aromatics in said non-straight chain hydrocarbon-rich fraction are converted to aromatics, and at least a portion of the straight chain hydrocarbon-rich fraction is passed in combination with steam over a steam active catalyst comprising at least one Group VIII metal and a tin modified Group II metal aluminate under conditions such that aromatics are produced.
摘要翻译： 一种用于处理含有直链烃和非直链烃的烃组合物的方法，其中所述烃组合物分离成直链富烃馏分和非直链富烃馏分，所述非芳族烃在所述非 - 将直链富烃馏分转化成芳族化合物，并将至少一部分直链富烃馏分与蒸汽结合通过包含至少一种第Ⅷ族金属和锡改性的第II族金属铝酸盐的蒸汽活性催化剂 在产生芳族化合物的条件下。
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公开(公告)号：US4589957A
公开(公告)日：1986-05-20
申请号：US526254
申请日：1983-08-25
申请人： Fred T. Sherk , Donald O. Hanson
发明人： Fred T. Sherk , Donald O. Hanson
CPC分类号： B01D3/146 , C07C7/04 , Y10S159/18 , Y10S203/20
摘要： Improved process for the separation of a hydrocarbon-containing feedstream comprising monomer, comonomer and diluent into separate product streams which comprises subjecting the feedstream to two-stage distillation provided with a common accumulation zone wherein the condensate from the accumulation zone serves as the source of feed for the second distillation and reflux for the first distillation. In a specific embodiment, a feed comprising ethylene, 1-hexene, and isobutane is separated into separate streams of 1-hexene, ethylene and isobutane, and isobutane for recycle to polymerization.
摘要翻译： 用于将包含单体，共聚单体和稀释剂的含烃进料流分离成单独的产物流的改进方法，其包括使进料流进行两级蒸馏，其中提供有共同积聚区，其中来自积聚区的冷凝物用作进料源 用于第二次蒸馏和回流进行第一次蒸馏。 在一个具体的实施方案中，将包含乙烯，1-己烯和异丁烷的进料分离成单独的1-己烯，乙烯和异丁烷流和异丁烷以再循环至聚合。
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