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公开(公告)号：US4859285A
公开(公告)日：1989-08-22
申请号：US189054
申请日：1988-05-02
Applicant: Lloyd Berg , Rudolph J. Szabados , Thomas H. Flower
Inventor： Lloyd Berg , Rudolph J. Szabados , Thomas H. Flower
Abstract: 2-Pentanone cannot be completely removed from 2-pentanone and formic acid mixtures by distillation because of the presence of the maximum azeotrope. 2-Pentanone can be readily removed from 2-pentanone-formic acid mixtures by extractive distillation in which the extractive agent is a ketone, either alone or mixed with certain high boiling organic compounds. Examples of effective agents are cyclohexanone; diisobutyl ketone and octanoic acid; isophorone, hexanoic acid and butyl ether.
Abstract translation: 由于存在最大共沸物，2-戊酮不能通过蒸馏从2-戊酮和甲酸混合物中完全除去。 2-戊酮可以通过萃取蒸馏容易地从2-戊酮 - 甲酸混合物中除去，其中萃取剂是酮，单独或与某些高沸点有机化合物混合。 有效试剂的实例是环己酮; 二异丁酮和辛酸; 异佛尔酮，己酸和丁基醚。
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82.发明授权Separation of m-diisopropylbenzene from p-diisoporopylbenzene by azeotropic distillation with ethers 失效通过与醚共沸蒸馏从对二异戊基苯中分离出M-二异丙基苯
公开(公告)号：US4855531A
公开(公告)日：1989-08-08
申请号：US277647
申请日：1988-11-29
Applicant: Lloyd Berg
Inventor： Lloyd Berg
IPC: C07C7/06
CPC classification number: C07C7/06
Abstract: Meta and para-diisopropylbenzene cannot be easily separated from each other by distillation because of the closeness of their vapor pressures. m-Diisopropylbenzene can be easily removed from p-diisopropylbenzene by azeotropic distillation using certain ethers. Typical effective azeotropic distillation agents are diethylene glycol diethyl ether and dipropylene glycol dimethyl ether.
Abstract translation: 由于它们的蒸气压接近，不能通过蒸馏将元和对二异丙基苯彼此分离。 可以使用某些醚通过共沸蒸馏，从对二异丙基苯中容易地除去间二异丙基苯。 典型的有效共沸蒸馏剂是二甘醇二乙醚和二丙二醇二甲醚。
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公开(公告)号：US4793901A
公开(公告)日：1988-12-27
申请号：US180129
申请日：1988-04-11
Applicant: Lloyd Berg , Rudolph J. Szabados
Inventor： Lloyd Berg , Rudolph J. Szabados
CPC classification number: C07C45/83
Abstract: 2-Pentanone cannot be completely removed from 2-pentanone and formic acid mixtures by distillation because of the presence of the maximum azeotrope. 2-Pentanone can be readily removed from 2-pentanone formic acid mixtures by extractive distillation in which the extractive agent is dimethylsulfoxide, either alone or mixed with certain high boiling organic compounds. Examples of effective agents are dimethylsulfoxide; DMSO and octanoic acid; DMSO, hexanoic acid and isophorone.
Abstract translation: 由于存在最大共沸物，2-戊酮不能通过蒸馏从2-戊酮和甲酸混合物中完全除去。 2-戊酮可以通过萃取蒸馏从2-戊酮甲酸混合物中容易地除去，其中萃取剂是二甲基亚砜，单独或与某些高沸点有机化合物混合。 有效试剂的实例是二甲基亚砜; DMSO和辛酸; DMSO，己酸和异佛尔酮。
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公开(公告)号：US4786370A
公开(公告)日：1988-11-22
申请号：US140495
申请日：1988-01-04
Applicant: Lloyd Berg
Inventor： Lloyd Berg
CPC classification number: C07C51/44
Abstract: Formic acid cannot be completely removed from formic acid and water mixtures by distillation because of the presence of the maximum azeotrope. Formic acid can be readily removed from formic acid - water mixtures by extractive distillation in which the extractive agent is ethylene carbonate or propylene carbonate, either alone or mixed with certain high boiling organic compounds. Examples of effective agents are ethylene carbonate and heptanoic acid; propylene carbonate, benzoic acid and isophorone; propylene carbonate, heptanoic acid and 2-hydroxyacetophenone.
Abstract translation: 由于存在最大共沸物，甲酸不能通过蒸馏从甲酸和水混合物中完全除去。 通过萃取蒸馏可以从甲酸 - 水混合物中轻松除去甲酸，其中萃取剂是单独的碳酸亚乙酯或碳酸亚丙酯，或与某些高沸点有机化合物混合。 有效试剂的实例是碳酸亚乙酯和庚酸; 碳酸亚丙酯，苯甲酸和异佛尔酮; 丙烯碳酸酯，庚酸和2-羟基苯乙酮。
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85.发明授权
公开(公告)号：US4718988A
公开(公告)日：1988-01-12
申请号：US844683
申请日：1986-03-27
Applicant: Lloyd Berg , An-I Yeh
Inventor： Lloyd Berg , An-I Yeh
Abstract: 2-Butyl acetate cannot be completely removed from 2-butyl acetate-2-butanol-water mixtures by distillation because of the presence of the minimum ternary azeotrope. 2-butyl acetate can be readily removed from mixtures containing it, 2-butanol and water by using extractive distillation in which the extractive distillation agent is a higher boiling oxygenated, nitrogenous and/or sulfur containing organic compound or a mixture of these. Typical examples of effective agents are N,N-dimethylacetamide; dimethylformamide and ethylene glycol; acetamide, dimethylsulfoxide and ethylene glycol.
Abstract translation: 由于存在最低三元共沸物，乙酸2-丁酯不能通过蒸馏从乙酸丁酯 - 2-丁醇 - 水混合物中完全除去。 采用萃取蒸馏法可以很容易地从含有它的混合物2-丁醇和水中除去乙酸2-丁酯，其中萃取蒸馏剂是较高沸点的含氧化氮，和/或含硫有机化合物或它们的混合物。 有效试剂的典型例子是N，N-二甲基乙酰胺; 二甲基甲酰胺和乙二醇; 乙酰胺，二甲基亚砜和乙二醇。
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Patent Agency Ranking86.发明授权Separation of n-hexyl acetate from n-hexyl alcohol by extractive distillation 失效通过萃取蒸馏从正己醇中分离出乙酸正己酯
公开(公告)号：US4695350A
公开(公告)日：1987-09-22
申请号：US822604
申请日：1986-01-27
Applicant: Lloyd Berg
Inventor： Lloyd Berg
Abstract: n-Hexyl acetate cannot be completely removed from n-hexyl acetate- n-hexyl alcohol- water mixtures by distillation because of the presence of the minimum ternary azeotrope. n-Hexyl acetate can be readily removed from mixtures containing it, n-hexyl alcohol and water by using extractive distillation in which the extractive distillation agent is dimethylsulfoxide or a mixture of DMSO with a higher boiling organic compound. Typical examples of effective agents are DMSO; DMSO and tetraethylene glycol; DMSO, dimethylformamide and hexylene glycol.
Abstract translation: 由于存在最小的三元共沸物，乙酸正己酯不能通过蒸馏从乙酸正己酯 - 水 - 乙酸正己酯混合物中完全除去。 通过萃取蒸馏，萃取蒸馏剂是二甲基亚砜或DMSO与较高沸点有机化合物的混合物，可以容易地从含有它的混合物，正己醇和水中除去正己酸乙酯。 有效试剂的典型例子是DMSO; DMSO和四甘醇; DMSO，二甲基甲酰胺和己二醇。
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87.发明授权
公开(公告)号：US4693789A
公开(公告)日：1987-09-15
申请号：US836488
申请日：1986-03-05
Applicant: Lloyd Berg , An-I Yeh
Inventor： Lloyd Berg , An-I Yeh
Abstract: Isopropyl acetate cannot be completely removed from isopropyl acetate - isopropanol - water mixtures by distillation because of the presence of the minimum ternary azeotrope. Isopropyl acetate can be readily removed from mixtures containing it, isopropanol and water by using extractive distillation in which the extractive agent is a higher boiling oxygenated or nitrogenous organic compound or a mixture of these. Typical examples of effective agents are diethanolamine; ethanolamine and N-methyl pyrrolidone; triethanolamine and N-methyl pyrrolidone.
Abstract translation: 由于存在最小的三元共沸物，乙酸异丙酯不能通过蒸馏从乙酸异丙酯 - 异丙醇 - 水混合物中完全除去。 通过采用萃取剂是较高沸点的含氧化合物或含氮有机化合物或它们的混合物的萃取蒸馏，可以容易地从含有它的混合物，异丙醇和水中除去乙酸异丙酯。 有效试剂的典型例子是二乙醇胺; 乙醇胺和N-甲基吡咯烷酮; 三乙醇胺和N-甲基吡咯烷酮。
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88.发明授权
公开(公告)号：US4693788A
公开(公告)日：1987-09-15
申请号：US26451
申请日：1987-03-17
Applicant: Lloyd Berg , Michael J. Shanahan
Inventor： Lloyd Berg , Michael J. Shanahan
CPC classification number: C07C29/84
Abstract: t-Amyl alcohol and isobutanol cannot be separated from each other by distillation because of the proximity of their boiling points. t-Amyl alcohol can be readily separated from isobutanol by using extractive distillation in which the extractive agent is a higher boiling organic compound or a mixture of two or more of these. Typical examples of effective agents are: dimethylformamide; N,N-dimethylacetamide; N,N-dimethylacetamide and dimethylsulfoxide; dimethylformamide, N,N-dimethylacetamide and phthalic anhydride.
Abstract translation: 由于它们的沸点接近，蒸馏不能将叔戊醇和异丁醇彼此分离。 采用萃取剂是高沸点有机化合物或其中两种或更多种的混合物，通过萃取蒸馏，可以容易地将叔戊醇与异丁醇分离。 有效试剂的典型实例是：二甲基甲酰胺; N，N-二甲基乙酰胺; N，N-二甲基乙酰胺和二甲基亚砜; 二甲基甲酰胺，N，N-二甲基乙酰胺和邻苯二甲酸酐。
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公开(公告)号：US4692219A
公开(公告)日：1987-09-08
申请号：US937401
申请日：1986-12-03
Applicant: Lloyd Berg
Inventor： Lloyd Berg
CPC classification number: C07C51/44
Abstract: Formic acid cannot be easily removed from acetic acid by distillation because of the closeness of their vapor pressures. Formic acid can be readily removed from acetic acid by extraction distillation. Typical extractive distillation agents are carboxylic acids in the range of hexamoic acid to neodecanoic acid with or without solvents such as methyl benzoate, acetophenone and nitrobenzene.
Abstract translation: 由于蒸汽压力的接近，甲酸不能通过蒸馏从乙酸中容易地除去。 通过萃取蒸馏可以容易地从乙酸中除去甲酸。 典型的萃取蒸馏剂是己酸与新癸酸范围内的羧酸，有或没有溶剂如苯甲酸甲酯，苯乙酮和硝基苯。
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90.发明授权Separation of n-propyl acetate from n-propanol and water by extractive distillation 失效通过萃取蒸馏从正丙醇和水中分离乙酸正丙酯
公开(公告)号：US4676874A
公开(公告)日：1987-06-30
申请号：US795866
申请日：1985-11-07
Applicant: Lloyd Berg , An-I Yeh
Inventor： Lloyd Berg , An-I Yeh
Abstract: n-Propyl acetate cannot be completely removed from n-propyl acetate - n-propanol - water mixtures by distillation because of the presence of the minimum ternary azeotrope. n-Propyl acetate can be readily removed from mixtures containing it, n-propanol and water by using extractive distillation in which the extractive distillation agent is a higher boiling oxygenated or nitrogenous organic compound or a mixture of these. Typical examples of effective agents are N-methylpyrrolidone; triethanolamine; N-methylpyrrolidone and ethylene glycol.
Abstract translation: 由于存在最小的三元共沸物，乙酸正丙酯不能通过蒸馏从乙酸正丙酯 - 正丙醇 - 水混合物中完全除去。 萃取蒸馏是萃取蒸馏的较高沸点的含氧有机化合物或含氮有机化合物或它们的混合物，可以通过萃取蒸馏，从含有它的混合物，正丙醇和水中容易地除去乙酸正丙酯。 有效试剂的典型例子是N-甲基吡咯烷酮; 三乙醇胺 N-甲基吡咯烷酮和乙二醇。
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