-
公开(公告)号：US4807672A
公开(公告)日：1989-02-28
申请号：US116854
申请日：1987-11-04
申请人： Fred T. Sherk , Jimmy M. Gilbreth
发明人： Fred T. Sherk , Jimmy M. Gilbreth
CPC分类号： G01F23/14
摘要： A method for controlling the filling status of particulate solids in a solids container is provided using an apparatus comprising an empty/full indication device comprising a conduit structure, having a vertically opened upper end and a vertically opened lower end, wherein the vertically opened upper end is in open communication with the upper end portion of the solids container at the location of a predetermined full level and the vertically opened lower is in open communication with the lower end portion of the solids container at the location of a predetermined empty level. The conduit structure has a configuration such that when the level of the particulate solids being fed into the solids container reaches the predetermined full level, the particulate solids flow into the vertically opened upper end of the conduit structure by gravity through to the vertically opened lower end of the conduit structure; and, as the level of particulate solids being dispersed out of the solids container drops below the predetermined empty level, substantially of the particulate material within the conduit structure flows, by gravity, into the lower end portion of the solids container.
摘要翻译： 提供一种用于控制固体容器中的颗粒状固体的填充状态的方法，该装置包括一个包括一个具有垂直打开的上端和垂直打开的下端的导管结构的空/全指示装置的装置，其中垂直打开的上端 在固定式容器的上端部处于预定的全部水平位置处开放连通，并且垂直打开的下部与固体容器的下端部分在预定空位的位置处开放连通。 导管结构具有这样的构造，使得当进入固体容器的颗粒状固体的水平达到预定的全部水平时，颗粒固体通过重力流入垂直打开的下端的导管结构的垂直打开的上端 的管道结构; 并且，随着分散在固体容器中的颗粒固体的含量降到预定的空白水平以下，导管结构内的大部分颗粒材料通过重力流入固体容器的下端部分。
-
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。
-
公开(公告)号：US4501885A
公开(公告)日：1985-02-26
申请号：US311479
申请日：1981-10-14
申请人： Fred T. Sherk , Janet L. Inkrott
发明人： Fred T. Sherk , Janet L. Inkrott
摘要： A polymerization process wherein a slurry of polymer and diluent is passed from the polymerization zone to a flash zone, then polymer solids having residual diluent carried thereon are passed to a purge zone wherein a heated noncombustible gas is used to remove additional amounts of diluent, and then the vapor purge zone is condensed and cooled to produce a vapor stream comprising said noncombustible gas and a liquid stream comprising diluent.
摘要翻译： 一种聚合方法，其中聚合物和稀释剂的浆液从聚合区段通过闪蒸区域，然后将其上载有残余稀释剂的聚合物固体送至净化区，其中使用加热的不燃气体除去附加量的稀释剂， 然后将蒸气吹扫区域冷凝并冷却以产生包含所述不可燃气体的蒸汽流和包含稀释剂的液体流。
-
14.发明授权Elevated, declining pressure dehydration of poly(arylene sulfide) prepolymerization mixture 失效聚（亚芳基硫醚）预聚合混合物的高压下降压力下降
公开(公告)号：US4368321A
公开(公告)日：1983-01-11
申请号：US298442
申请日：1981-09-01
申请人： Fred T. Sherk , Harry B. Hammer
发明人： Fred T. Sherk , Harry B. Hammer
CPC分类号： C08G75/025 , C08G75/0231
摘要： A method for dehydrating pre-polymerization mixtures in the preparation of poly(arylene sulfide) in which a reaction mixture of a sulfur source and an organic amide are contacted at a first pressure within a range of about 20 psig to about 60 psig and an initial temperature in a range of about 300.degree. F. to 400.degree. F. to form a complex of the reactants with the mixture subsequently subjected to a decrease in pressure while elevating the temperature to a second temperature at which, at the chosen pressure, essentially all water is removed from the mixture. Other compounds including bases, alkali metal carboxylates, alkali metal carbonates, lithium halides, and lithium borate can be present in the reaction mixture. Preferably the sulfur source is sodium sulfide and the organic amide is N-methylpyrrolidone.
摘要翻译： 在聚（亚芳基硫醚）的制备中使预聚合混合物脱水的方法，其中硫源和有机酰胺的反应混合物在约20psig至约60psig的范围内的第一压力下接触，并且初始 温度在约300°至400°F的范围内，以形成反应物与混合物的络合物，随后将温度降低至第二温度，在第二温度下，在所选压力下，基本上全部 从混合物中取出水。 包括碱，碱金属羧酸盐，碱金属碳酸盐，卤化锂和硼酸锂的其它化合物可以存在于反应混合物中。 优选地，硫源是硫化钠，有机酰胺是N-甲基吡咯烷酮。
-
公开(公告)号：US4121029A
公开(公告)日：1978-10-17
申请号：US748086
申请日：1976-12-06
申请人： Howard B. Irvin , Fred T. Sherk
发明人： Howard B. Irvin , Fred T. Sherk
CPC分类号： B01J19/1837 , B01J19/1881 , B01J8/007 , C08F10/00 , B01J2219/00114 , Y10T428/31848
摘要： A method and apparatus are provided in a pipeloop reactor system for recovery of soluble catalyst components from polymer slurry effluent into the pipe-loop reactor. The polymer slurry is collected in a wash column attached to the upper run of the loop reactor; the slurry is allowed to settle through a countercurrent flow of wash liquid, the liquid used for wash, being one in which catalyst components are soluble; the washed slurry is collected in a settling leg attached to the wash column; and wash liquid containing catalyst components is overflowed into the reactor loop. In peferred embodiments of the invention the wash liquid is subjected to auto-refrigeration before being admitted into the wash column. In another preferred embodiment unreacted monomer feed is recovered from the polymer slurry, purified, and recycled as wash liquid. In still another embodiment of the invention the flow of polymer from the reactor loop into the wash column is mechanically restricted.
摘要翻译： 在管道反应器系统中提供了一种方法和装置，用于将可溶性催化剂组分从聚合物浆料流出物回收到管道回路反应器中。 将聚合物浆料收集在连接到环管反应器的上游的洗涤塔中; 允许浆液通过洗涤液体的逆流流动，用于洗涤的液体，其中催化剂组分可溶于其中; 将洗涤的浆液收集在连接到洗涤塔上的沉降腿中; 并且含有催化剂组分的洗涤液体溢出到反应器回路中。 在本发明的优选实施方案中，洗涤液体在进入洗涤塔之前经受自动制冷。 在另一个优选实施方案中，未反应的单体进料从聚合物浆料中回收，纯化，并作为洗涤液再循环。 在本发明的另一个实施方案中，聚合物从反应器回路进入洗涤塔的流动被机械限制。
-
16.发明授权Acetylenes removal from olefin streams for alkylation by dimethyl formamide absorption 失效从烯烃流中除去乙炔以通过二甲基甲酰胺吸收进行烷基化
公开(公告)号：US4086288A
公开(公告)日：1978-04-25
申请号：US714934
申请日：1976-08-16
CPC分类号： C10K1/16 , B01D53/1418 , B01D53/1456 , B01D53/1493 , C07C15/02 , C07C7/11
摘要： Dimethyl formamide when used as an absorption solvent to remove acetylenes from olefin-containing gas streams acts as well as a promoter for the oxidative conversion of H.sub.2 S, COS and/or CS.sub.2, also contained in the feed stream, to elemental sulfur. Thus both acetylenes and sulfur compounds are efficiently removed from such olefin-containing gas streams as coke oven gas. Further, the loss of dimethyl formamide entrained and vaporized by the deacetylenized gas stream leaving the dimethyl formamide absorber is substantially reduced or effectively eliminated by the injection of a stream of liquid selected from the group consisting of paraffinic hydrocarbons having 4-8 carbon atoms per molecule containing at least one tertiary carbon atom per molecule and aromatic hydrocarbons having 6-10 carbon atoms per molecule above the point of injection of the dimethyl formamide solvent stream to the absorption column. This liquid stream injection is particularly advantageous when the stream is also a reactant in a downstream alkylation process.
摘要翻译： 二甲基甲酰胺当用作吸收溶剂以从含烯烃气流中除去乙炔时，以及用于将进料流中还含有的H 2 S，COS和/或CS 2氧化转化成元素硫的促进剂。 因此，乙炔和硫化合物都可以从焦炭气体这样的含烯烃气流中有效地除去。 此外，通过离开二甲基甲酰胺吸收剂的脱乙酰气流夹带和蒸发的二甲基甲酰胺的损失通过注入选自由每分子具有4-8个碳原子的链烷烃组成的组中的液体流被显着地减少或有效地消除 每分子含有至少一个叔碳原子，每分子具有6-10个碳原子的芳烃，高于注入二甲基甲酰胺溶剂流到吸收塔的点。 当流在下游烷基化方法中也是反应物时，该液体流注入是特别有利的。
-
17.发明授权
公开(公告)号：US3952052A
公开(公告)日：1976-04-20
申请号：US460939
申请日：1974-04-15
申请人： Fred T. Sherk
发明人： Fred T. Sherk
CPC分类号： C07C51/416
摘要： The effluent of a disproportionation reactor comprising alkali metal salts of aromatic polycarboxylic acids and a dispersant is flash evaporated so as to separate the effluent into a vapor phase comprising the vaporized dispersant and a solid phase comprising the alkali metal salts of the aromatic polycarboxylic acids.
摘要翻译： 将包含芳族多元羧酸的碱金属盐和分散剂的歧化反应器的流出物闪蒸，以将流出物分离成包含蒸发的分散剂的气相和包含芳族多元羧酸的碱金属盐的固相。
-
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.
-
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。
-
公开(公告)号：US4263451A
公开(公告)日：1981-04-21
申请号：US85172
申请日：1979-10-15
申请人： Ronnie L. Lewis , Fred T. Sherk
发明人： Ronnie L. Lewis , Fred T. Sherk
CPC分类号： B01J31/04 , B01J31/4015 , C01G9/02 , C07C51/416 , B01J23/06 , Y02P20/52 , Y02P20/584
摘要： A method for removing carbonaceous impurity from zinc oxide by contacting a water slurry of contaminated zinc oxide with oxygen in a reactor at reaction conditions sufficient to produce oxide products of the carbon contaminants and passing the reactor effluent through a filter to collect solid zinc oxide while passing the oxides of carbon through the filter. In a preferred embodiment, contaminated zinc oxide separated from the reaction product in the preparation of terephthalic acid from benzoic acid using zinc benzoate catalyst is subjected to treatment for removal of carbonaceous contaminants before being recycled to reaction with molten benzoic acid to produce zinc benzoate catalyst used in the reaction.
摘要翻译： 在足以产生碳污染物的氧化物产物的反应条件下使受污染的氧化锌的水浆与氧接触的方法从氧化锌中除去含碳杂质的方法，并使反应器流出物通过过滤器以收集固体氧化锌，同时通过 碳的氧化物通过过滤器。 在优选的实施方案中，使用苯甲酸锌催化剂从苯甲酸制备对苯二甲酸中的反应产物中分离的被污染的氧化锌在再循环到与熔融的苯甲酸反应以产生使用的苯甲酸锌催化剂之前，经过处理除去含碳污染物 在反应中。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.019 秒)
