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61. 发明授权

US4421936A Continuous alkoxidation process 失效
标题翻译：连续烷氧化工艺
公开(公告)号：US4421936A
公开(公告)日：1983-12-20
申请号：US480977
申请日：1983-03-31
申请人： Harry M. Smith , Raymond D. Williams
发明人： Harry M. Smith , Raymond D. Williams
IPC分类号： C07C41/18 , C07C41/42 , C07F9/09 , C07F9/11 , C07C29/70 , C07C43/13
CPC分类号： C07F9/11 , C07C41/18 , C07C41/42 , C07F9/091
摘要： A continuous process for producing alkali metal alkoxides comprising continuously introducing an aqueous solution of an alkali metal hydroxide into an upper section of a column reactor; continuously vaporizing an alkanol or an alkoxyalkanol of 4 to 18 carbon atoms into a lower section of the reactor at a rate of at least about 2 to 4 moles of alcohol for each mole of alkali metal hydroxide introduced into the reaction zone; reacting the aliphatic alcohol with the alkali metal hydroxide in the reactor; concurrently removing water from the alkali metal hydroxide solution and the alkoxide formation from an upper section of the reactor as an azeotrope formed by excess alcohol and water; continuously condensing and separating the azeotrope into an alcohol phase and a water phase, the water phase being removed from the process and the alcohol phase being returned to the column reactor; and removing a substantially anhydrous reaction product consisting primarily of alkoxide product in excess alcohol from a bottom section of the reactor while simultaneously maintaining a nonoxidizing atmosphere while conducting the reaction.
摘要翻译：一种生产碱金属醇盐的连续方法，包括将碱金属氢氧化物水溶液连续引入塔式反应器的上段; 以每摩尔引入反应区的碱金属氢氧化物，以至少约2至4摩尔醇的速率将4至18个碳原子的链烷醇或烷氧基烷醇连续蒸发到反应器的下部; 在反应器中使脂族醇与碱金属氢氧化物反应; 同时从碱金属氢氧化物溶液中除去水和从反应器上部形成的醇盐作为由过量酒精和水形成的共沸物; 将共沸物连续冷凝和分离成醇相和水相，从工艺中除去水相，并将醇相返回塔式反应器; 并且从反应器的底部除去主要由过量醇中的醇盐产物组成的基本上无水的反应产物，同时在进行反应的同时维持非氧化气氛。

62. 发明授权

US3410762A Separation of ethers 失效
标题翻译：醚的分离
公开(公告)号：US3410762A
公开(公告)日：1968-11-12
申请号：US63081667
申请日：1967-04-14
申请人： ICI LTD
发明人： FRED DEAN
IPC分类号： C07C27/22 , C07C29/74 , C07C41/42
CPC分类号： C07C29/74 , C07C27/22 , C07C41/42 , C07C43/13 , C07C31/125 , C07C31/205 , C07C31/207

63. 发明授权

US2927064A Refining of alpha-methylbenzyl ether 失效
标题翻译：精制α-甲基苄基醚
公开(公告)号：US2927064A
公开(公告)日：1960-03-01
申请号：US72063058
申请日：1958-03-11
申请人： UNION CARBIDE CORP
发明人： LUZADER GILBERT B , HALL MAYNARD E
IPC分类号： C07C41/42
CPC分类号： C07C41/42 , C07C43/164

64. 发明授权

US1544569A Method of purifying ether 失效
标题翻译：乙醚净化方法
公开(公告)号：US1544569A
公开(公告)日：1925-07-07
申请号：US69554424
申请日：1924-02-27
申请人： FOSTER JOHN P
发明人： FOSTER JOHN P
IPC分类号： C07C41/42
CPC分类号： C07C41/42 , C07C43/06

65. 发明公开

US20240002321A1 HEAT RECOVERY FROM FLUE GAS DURING ALKYL TERT-BUTYL ETHER PRODUCTION 审中-公开
公开(公告)号：US20240002321A1
公开(公告)日：2024-01-04
申请号：US18253998
申请日：2021-11-23
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： Mohammed Bismillah ANSARI , Vijay Dinkar BODAS , Muhammad Imran YAQUB
IPC分类号： C07C41/42
CPC分类号： C07C41/42
摘要： Systems and methods for producing an alkyl tert-butyl ether are disclosed. The methods include providing heat to a reboiler of a distillation column of an alkyl tert-butyl ether production unit from a flue gas emanating from a unit carrying out a catalyst regeneration process.

66. 发明授权

US11851400B2 Intensified process of synthesis of dialkyl ethers using a step conical reactor 有权
公开(公告)号：US11851400B2
公开(公告)日：2023-12-26
申请号：US17614965
申请日：2020-05-27
申请人： Council of Scientific and Industrial Research
发明人： Thirumalaiswamy Raja , Vipul Subhash Patil , Siva Prasad Mekla , Snehal Narayan Teli , Kiran Chandrashekhar Chavhan , Akash Ravindra Bhatkar
IPC分类号： C07C41/09 , B01D3/34 , B01D3/00 , C07C41/42
CPC分类号： C07C41/09 , B01D3/009 , B01D3/346 , C07C41/42
摘要： The present invention relates to an intensification of the synthetic process for the preparation of dialkyl ether from alcohol by using a conical fixed bed reactor integrated with distillation coupled conical polishing reactor.

67. 发明公开

US20230373891A1 PROCESS FOR THE PREPARATION OF 2-ISOPENTYL-2-ISOPROPYL-1,3-DIMETHOXYPROPANE 审中-公开
公开(公告)号：US20230373891A1
公开(公告)日：2023-11-23
申请号：US18031506
申请日：2020-10-13
申请人： SABIC GLOBAL TECHNOLOGIES B.V.
发明人： Jaiprakash Brijlal SAINANI , Kiran Arunkumar PUTHAMANE , Shirish Shrikant ABHYANKAR , Omkar GADGIL
IPC分类号： C07C41/16 , C07C41/34 , C07C41/42
CPC分类号： C07C41/16 , C07C41/34 , C07C41/42
摘要： The present invention relates to a process for the preparation of 2-isopentyl-2-isopropyl-1,3-dimethoxypropane, said process comprising the steps of: i) contacting iso-valderaldehyde with an aqueous solution of a hydroxide base selected from the group consisting of sodium hydroxide (NaOH), potassium hydroxide (KOH) or a combination thereof, said solution having an amount of said hydroxide base of at least 20% w/v, and (m)ethanol; to form (2Z)-2-isopropyl-5-methyl-2-hexenal; step ii) contacting (2Z)-2-iso-propyl-5-methyl-2-hexenal with a reducing system to form 2-isopropyl-5-methylhexanal; step iii) contacting 2-isopropyl-5-methylhexanal with formaldehyde and an inorganic base to form 2-isopentyl-2-isopropylpropane-1,3-diol; and step iv) contacting 2- isopentyl-2-isopropylpropane-1,3-diol with a methylation agent and a base to form 2-isopentyl-2-isopropyl-1,3-dimethoxypropane.

68. 发明授权

US11518749B2 Method for the continuous separation by distillation of mixtures that contain morpholine (MO), monoaminodiglycol (ADG), ammonia, water and methoxyethanol (MOE) 有权
公开(公告)号：US11518749B2
公开(公告)日：2022-12-06
申请号：US16971650
申请日：2019-02-11
申请人： BASF SE
发明人： Oliver Bussmann , Eva Koch , Manfred Heilig , Joachim Pfeffinger , Joerg Pastre , Johann-Peter Melder
IPC分类号： C07C217/08 , C07C41/42 , C07C213/02 , C07C213/10 , C07D295/03 , C07D295/023
摘要： A process for the continuous distillative separation of mixtures comprising morpholine (MO), monoaminodiglycol (ADG), ammonia, water and methoxyethanol (MOE), obtained by reacting diethylene glycol (DEG) with ammonia, wherein ammonia, water, ADG and DEG are removed by distillation and the resulting stream comprising MO and MOE is supplied to a distillation column K40 in which at a top pressure of from 20 to 2000 mbar MO, MOE and organic products having a boiling point 128° C. (1.013 bar) are removed via the bottom and organic products having a boiling point 128° C. are removed overhead, and also MO is removed via a side draw, where K40 is equipped with an evaporator for heating the bottoms, into which is fed heating vapor having a pressure of from 1 to 10 bar.

69. 发明申请

US20220259126A1 ETHERIFICATION OF HIGH CONCENTRATION C5 ISO-OLEFINS VIA CATALYTIC DISTILLATION 有权
公开(公告)号：US20220259126A1
公开(公告)日：2022-08-18
申请号：US17650788
申请日：2022-02-11
申请人： LUMMUS TECHNOLOGY LLC
发明人： Rosette Barias , Michael Jon Scott
IPC分类号： C07C41/05 , C07C41/42
摘要： Systems and processes for the efficient conversion of high concentration isoolefin streams to tertiary alkyl ethers are disclosed. The systems and processes may include a feed system to advantageously divide the high concentration isoolefin feed to multiple fixed bed reactors and a catalytic distillation reactor to control the reaction exotherm and achieve a high isoolefin conversion.

70. 发明授权

US11247961B2 Me 1 hod for removing or collecting 2-alkoxyethanol, and method for producing (2-alkoxyethyl) vinyl ether 有权
公开(公告)号：US11247961B2
公开(公告)日：2022-02-15
申请号：US16331613
申请日：2017-09-13
申请人： MARUZEN PETROCHEMICAL CO., LTD.
发明人： Takashi Naniki , Ryuichi Tenjimbayashi , Masuo Yamazaki , Tomohiko Sato
IPC分类号： C07C41/38 , C07C41/42 , C07C41/08 , C07C43/13 , C07C43/16 , C07B61/00
摘要： To provide a method capable of easily and efficiently removing a 2-alkoxyethanol from a mixture containing the 2-alkoxyethanol and a (2-alkoxyethyl) vinyl ether while suppressing a decrease in the yield of (2-alkoxyethyl) vinyl ether.
A method for removing a 2-alkoxyethanol, including the step of adding one or more azeotropic solvents selected from the group consisting of alkanes having 7 to 8 carbon atoms and cycloalkanes having 7 to 8 carbon atoms to a mixture containing the 2-alkoxyethanol represented by the following formula (1) R—O—CH2CH2OH (1) where R represents an alkyl group having 1 to 4 carbon atoms, and a (2-alkoxyethyl) vinyl ether represented by the following formula (2) R—O—CH2CH2O—CH═CH2 (2) where R has the same meaning as R in the formula (1), and subjecting the resulting mixture to azeotropic distillation.

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