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1. 发明公开

US20240166584A1 METHOD OF SELECTIVE PARADICHLOROBENZENE PREPARATION WITH IMPROVED CATALYTIC SYSTEM RECOVERY 审中-公开
公开(公告)号：US20240166584A1
公开(公告)日：2024-05-23
申请号：US18386852
申请日：2023-11-03
申请人： PCC Rokita Spolka Akcyjna
发明人： Lukasz Woloszyn , Krzysztof Dudziak , Dastin Wosch , Bartosz Bankowski
IPC分类号： C07C17/06 , B01D3/06 , B01D3/10 , B01D3/14 , B01D9/00 , B01J27/10 , B01J31/02 , C07C17/392
CPC分类号： C07C17/06 , B01D3/06 , B01D3/10 , B01D3/143 , B01D9/0004 , B01J27/10 , B01J31/0271 , C07C17/392 , B01J2231/348
摘要： Benzene and/or monochlorobenzene were chlorinated with molecular chlorine to obtain paradichlorobenzene with high selectivity. A batch reactor was used for this purpose, with a highly selective catalytic system consisting of SbCl3 and a phenothiazine derivative. The entire process was improved with the introduction of a new catalytic system recovery method, which was based on returning the mother liquid containing the catalytic system to the process after prior separation from the fresh post-reaction mixture by distillation of unreacted raw materials under reduced pressure and recycling them, as well as crystallization of paradichlorobenzene from the depleted liquid after vacuum distillation.

2. 发明授权

US10472308B2 Butene conversion method and monofluorobutane purification method 有权
公开(公告)号：US10472308B2
公开(公告)日：2019-11-12
申请号：US16323938
申请日：2017-08-17
申请人： ZEON CORPORATION
发明人： Tatsuya Sugimoto
IPC分类号： C07C17/392 , C07C17/26 , C07C17/395 , C07C19/08 , C07C23/04
摘要： Provided is an industrially simple and cheap method for efficiently removing butene from crude monofluorobutane containing butene without causing substantial decomposition, transformation, or the like of the monofluorobutane. In a provided monofluorobutane purification method, crude monofluorobutane containing butene is brought into contact with trihalomethane in the presence of an alkali aqueous solution to convert the butene to a compound having a higher boiling point than the monofluorobutane, water is subsequently added to a reaction mixture obtained thereby to dissolve a produced salt, an organic layer is separated, and then the separated organic layer is purified by distillation.

3. 发明授权

US5874659A Process for the preparation of p-bromotoluene 失效
标题翻译：制备对溴甲苯的方法
公开(公告)号：US5874659A
公开(公告)日：1999-02-23
申请号：US78380
申请日：1998-05-13
申请人： Christophe-Henri Pierre Lusson
发明人： Christophe-Henri Pierre Lusson
IPC分类号： C07C17/392 , C07C25/02 , C07C22/00
CPC分类号： C07C25/02 , C07C17/392
摘要： A crude bromotoluene mixture comprising at least 70 wt % of a mixture of p-bromotoluene and o-bromotoluene, and wherein the weight ratio of p-bromotoluene:o-bromotoluene is in the range of 50:50 to 99:1 is cooled to a temperature at which crystals of product enriched in p-bromotoluene are formed in a first residual mother liquor. After removing the residual mother liquor from the crystals of product enriched in p-bromotoluene, the crystals are partially melted to form a mixture of residual higher purity p-bromotoluene in the form of crystals, and a second mother liquor having a higher content of o-bromotoluene than said first residual mother liquor. This higher purity p-bromotoluene and the second mother liquor are separated from each other. The entire procedure starting with the above cooling step can be repeated as a second stage and again as a third stage each time using as the initial feed the residual higher purity p-bromotoluene that is separated from the second mother liquor of the preceding stage. Product of 99.5 wt % purity can be formed in this manner.
摘要翻译：包含至少70重量％的对溴甲苯和邻溴甲苯的混合物的粗溴甲苯混合物，其中对 - 溴甲苯：邻 - 溴甲苯的重量比在50:50至99:1的范围内被冷却至在第一残留母液中形成富含对溴甲苯的产物的晶体的温度。在从富含对甲苯磺酸的产物的晶体中除去残余的母液后，晶体部分地熔化，形成晶体形式的残留较高纯度的对溴甲苯的混合物，并且含有较高含量的第二母液 - 溴甲苯比所述第一残余母液。这种较高纯度的对溴甲苯和第二母液彼此分离。从上述冷却步骤开始的整个过程可以作为第二阶段重复，并且再次作为第三阶段，每次作为初始进料使用与前一阶段的第二母液分离的残留的较高纯度的对溴甲苯。可以以这种方式形成99.5重量％的纯度的产物。

4. 发明授权

US5457248A Brominated diphenylalkane products and processes 失效
标题翻译：溴化二苯基烷烃产品和工艺
公开(公告)号：US5457248A
公开(公告)日：1995-10-10
申请号：US224345
申请日：1994-04-07
申请人： Arthur G. Mack , Rastko I. Mamuzic , David C. Sanders , Richard S. Rose , Mary G. Harscher
发明人： Arthur G. Mack , Rastko I. Mamuzic , David C. Sanders , Richard S. Rose , Mary G. Harscher
IPC分类号： B01J23/745 , B01J27/128 , C07B61/00 , C07C17/12 , C07C17/38 , C07C17/392 , C07C25/18 , C08K5/02 , C08K5/03 , C08L101/00 , C09K21/08 , C07C17/06 , C07C25/00
CPC分类号： C07C17/12 , C07C17/392
摘要： Described are processes for preparing brominated diphenylalkane products which are far whiter than prior known brominated diphenylalkane products. The resultant white brominated diphenylalkane products also form a part of the present invention, as do formulations incorporating the white brominated diphenylalkane products, and articles prepared therefrom.
摘要翻译：描述了制备溴化二苯基烷烃产物的方法，其比现有已知的溴化二苯基烷烃产物更白。得到的白色溴化二苯基烷烃产物也形成本发明的一部分，以及掺入白色溴化二苯基烷烃产物的制剂以及由其制备的制品。

5. 发明授权

US3755473A Process for separating mono chloromethylation and di-chloromethylation product of a c10 or lower aromatic hydrocarbon 失效
标题翻译：分离C10或更低芳烃的单氯氯丙烯和二氯甲烷化产物的方法
公开(公告)号：US3755473A
公开(公告)日：1973-08-28
申请号：US3755473D
申请日：1971-09-03
申请人： EXXON RESEARCH ENGINEERING CO
发明人： CIER H , WILDER H
IPC分类号： C07C17/392 , C07C22/04 , C07C25/14
CPC分类号： C07C22/04 , C07C17/392
摘要： A PROCESS FOR SEPARATING THE MONO-CHLOROMETHYLATION FROM THE DI-CHLOROMETHYLATION PRODUCTS OF AROMATIC HYDROCARBONS OF C10 OR LOWER WHOSE MONO-CHLOROMETHYLATION PRODUCTS HAVE A MELTING POINT OF ABOUT 25*C. OR HIGHER. A CHLOROMETHYLATION REACTION MIXTURE IS HEATED WITH A C6 TO C9 AROMATIC HYDROCARBON IN THE LIQUID PHASE TO DISSOLVE THE MONO-CHLOROMETHYLATION AND DI-CHLOROMETHYLATION PRODUCTS AND IS THEN COOLED TO PRECIPITATE SOLID DI-CHLOROMETHYLATION PRODUCT. SOLID DI-CHLOROMETHYLATION PRODUCT IS SEPARATED FROM THE AROMATIC HYDROCARBON SOLUTION AND WASHED WITH A C5 TO C8 SATURATED HYDROCARBON IN THE LIQUID PHASE TO HIGH PURITY. THE AROMATIC HYDROCARBON SOLUTION IS VAPORIZED TO LEAVE A RESIDUE INCLUDING THE MONO-CHLOROMETHYLATED PRODUCT. THE RESIDUE IS HEATED WITH A SATURATED C5 TO C8 HYDROCARBON N THE LIQUID PHASE TO DISSOLVE MONO-CHLOROMETHYLATED PRODUCT THEREIN. THEN THE HOT SATURATED HYDROCARBON S SEPARATED FROM UNDISSOLVED SOLIDS AND IS COOLED TO PRECIPITATE SOLID MONO-CHLOROMETHYLATED PRODUCT, WHICH IS THEN RECOVERED FROM THE SATURATED HYDROCARBON.

6. 发明授权

US1917822A Method of separating chloronaphthalenes 失效
标题翻译：氯萘分离方法
公开(公告)号：US1917822A
公开(公告)日：1933-07-11
申请号：US45430330
申请日：1930-05-21
申请人： DOW CHEMICAL CO
发明人： BRITTON EDGAR C , REED WILLIAM R
IPC分类号： C07C17/392
CPC分类号： C07C17/392 , C07C25/22

7. 发明授权

US3770386A Apparatus for purifying crystals comprising a stirrer with fins forming a discontinuous spiral 失效
标题翻译：用于净化包含形成不连续螺旋的FINS的结晶的晶体的装置
公开(公告)号：US3770386A
公开(公告)日：1973-11-06
申请号：US3770386D
申请日：1970-09-28
申请人： KUREHA CHEMICAL IND CO LTD
发明人： HAYASHI Y , SAITO S , KODAMA K , OHTA M
IPC分类号： B01D9/00 , C01D3/18 , C07C7/14 , C07C17/392 , B01D11/00
CPC分类号： C07C7/14 , B01D9/004 , C01D3/18 , C07C17/392 , C07C15/08 , C07C25/08
摘要： A method and apparatus for continuously purifying a crystalline substance containing an impurity having a lower melting point than that of the crystalline substance, comprising continuously purifying crystals in a purification tower, said tower being provided with a stirrer for transporting said crystals upwards in said tower while preventing the crystals from coagulating, the stirrer having fins arranged spirally along the axis thereof at an angle opposite to the direction of the spiral, melting at least a portion of the purified crystals, refluxing a portion of the melting crystals to the inside of the tower to wash the ascending impure crystals, and removing the remaining portion of the purified crystals from the tower.
摘要翻译：一种用于连续纯化含有比结晶物质的熔点低的杂质的结晶物质的方法和装置，包括在纯化塔中连续纯化晶体，所述塔设置有用于在所述塔中向上输送所述晶体的搅拌器，防止晶体凝结，所述搅拌器具有以与螺旋方向相反的角度沿其轴线螺旋地布置的翅片，熔化至少一部分纯化的晶体，将一部分熔融晶体回流到塔的内部洗涤上升的不纯晶体，并从塔中除去剩余部分纯化的晶体。

8. 发明授权

US3022889A Electrostatic separation of normally liquid materials 失效
标题翻译：正常液体材料的静电分离
公开(公告)号：US3022889A
公开(公告)日：1962-02-27
申请号：US78738459
申请日：1959-01-19
申请人： INT MINERALS & CHEM CORP
发明人： LE BARON IRA M , SAMSEL GENE L
IPC分类号： B01D9/00 , B03C7/00 , C07C7/14 , C07C17/392 , C07D213/06
CPC分类号： C07D213/06 , B01D9/005 , B03C7/00 , C07C7/14 , C07C17/392 , C07C15/08

9. 发明授权

US2912469A Fractional crystallization process 失效
公开(公告)号：US2912469A
公开(公告)日：1959-11-10
申请号：US49481555
申请日：1955-03-16
申请人： MONSANTO CHEMICALS
发明人： WIEGANDT HERBERT F
IPC分类号： B01D9/00 , C07C17/392
CPC分类号： B01D9/0009 , C07C17/392

10. 发明授权

US2863739A Process for the continuous production of crystalline substances 失效
标题翻译：连续生产结晶物质的方法
公开(公告)号：US2863739A
公开(公告)日：1958-12-09
申请号：US52151955
申请日：1955-07-12
申请人： HOECHST AG
发明人： FRIEDRICH ERBE , ALEXANDER MAIKOWSKI MICHAEL
IPC分类号： B01D9/00 , B01J2/10 , C01B17/02 , C01B25/30 , C01B33/32 , C01C1/248 , C07C17/392 , G01S7/03 , H01J25/38 , H01P1/393
CPC分类号： H01P1/393 , B01D9/0004 , B01D9/0036 , B01J2/10 , C01B17/0205 , C01B17/0216 , C01B17/0237 , C01B25/30 , C01B33/32 , C01C1/248 , C07C17/392 , G01S7/034 , H01J25/38 , C07C25/08
摘要： 812,082. Combined transmitting and receiving systems. TOKYO SHIBAURA ELECTRIC CO. Ltd. Sept. 14, 1955, No. 26253/55. Class 40 (5). [Also in Group XL (b)] A travelling wave tube is included in the receiver arm 25 of a radar or like transmitterreceiver having a common duplexer (wave guide 18) and antenna so that received signals are amplified by the tube but transmitted pulses, by overloading it, are attenuated. Moreover, received signals are rotated through 45 degrees by a 45 degree twist coupler 21 transforming the waveguide from rectangular to circular and further rotated through 45 degrees by a Faraday rotator 24 so that, being parallel to a conductor plane 26 in the waveguide, they are reflected back to and are accepted by the receiver arm 25, but transmitted signals, being not affected by the plane 26, are substantially rejected by the branch arm 25. The rotations due to the rotator 24 and twist coupler 21 on the transmitter signal, however, both cancel out. An inclined conducting plane 27 eliminates signals whose orientation is not aligned with the coupler 21. In a modification the twist coupler 21 is replaced by a 45 degree Faraday rotator and the other rotator 24 arranged to produce an equal 45 degrees but opposite rotation between the transmitter input end 19 and the reflecting plane 26.

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