公开(公告)号：US4310710A

公开(公告)日：1982-01-12

申请号：US121565

申请日：1980-02-14

申请人： Bernard Torck ,  Alain Convers ,  Lionel Asselineau ,  Michel Hellin

发明人： Bernard Torck ,  Alain Convers ,  Lionel Asselineau ,  Michel Hellin

IPC分类号： C07C41/06

CPC分类号： C07C41/06 ,  C07C41/42 ,  Y02P20/582

摘要： Methyl tert.butyl ether is obtained by reacting an isobutene-containing C.sub.4 cut with methanol and distilling the reaction product at a superatmospheric pressure of 7-30 atm. abs. to recover a top fraction and a bottom fraction containing methyl tert.butyl ether. The isobutene conversion rate and the purity of the ether are increased by recycling a portion of the top fraction to the reaction zone.

摘要翻译： 通过使异丁烯的C4馏分与甲醇反应并在7-30atm的超大气压下蒸馏反应产物来获得甲基叔丁基醚。 绝对 以回收含有甲基叔丁基醚的顶部馏分和底部馏分。 通过将顶部馏分的一部分再循环到反应区来提高异丁烯转化率和乙醚的纯度。

公开(公告)号：US5235117A

公开(公告)日：1993-08-10

申请号：US765276

申请日：1991-09-25

申请人： Jacques Alagy ,  Christian Busson ,  Lionel Asselineau

发明人： Jacques Alagy ,  Christian Busson ,  Lionel Asselineau

IPC分类号： C01B35/10 ,  C07B61/00 ,  C07C29/52 ,  C07C31/04 ,  C07C31/135

CPC分类号： C07C29/52 ,  C01B35/1036 ,  C01B35/1045 ,  C07C2101/14

摘要： For preparing at least one boric oxide in an anhydrous or hydrated form and of general formula B.sub.2 O.sub.3, xH.sub.2 O, in which x is a number from 0 to 3, a methyl borate hydrolyzate comprising boric oxide and methanol is introduced into a distillation column is introduced the product from, at least one compound (preferably a hydrocarbon such as, e.g., 2,3-dimethyl butane or 2-methyl pentane) forming a heteroazeotrope with methanol, said heteroazaeotrope having a boiling point below that of the azeotrope formed by methyl borate with methanol and at least one compound having a boiling point higher than that of methyl borate, said compound not forming an azeotrope with a boiling point below that of said heteroazeotrope and then at the head of the column said heteroazeotrope is recovered and at the bottom of the column a suspension containing at least one boric oxide.A description is also given of a process for the oxidation of at least one saturated hydrocarbon into a product incorporating the corresponding alcohol wherein oxidation is carried out with oxygen in the presence of a boric oxide with. The oxidation product is hydrolyzed into orthoboric acid and alcohol, which is recovered by separation from the organic phase. The aqueous phase containing the boric acid is fed into a methyl borate formation zone and the methyl borate is recovered in the form of its azeotrope with methanol. The recovery of the boric oxide from said azeotrope is performed in accordance with the aforementioned process, the recovered boric oxide being recycled to the oxidation stage.

摘要翻译： 为了制备至少一种无水或水合形式的氧化硼和通式B 2 O 3，xH 2 O，其中x为0至3的数，将包含氧化硼和甲醇的硼酸甲酯水解产物引入蒸馏塔 与来自与甲醇形成杂共聚物的至少一种化合物（优选例如2,3-二甲基丁烷或2-甲基戊烷的烃）形成的产物，所述杂氮杂异动物的沸点低于由硼酸甲酯形成的共沸物的沸点， 甲醇和沸点高于硼酸甲酯的沸点的至少一种化合物，所述化合物不形成沸点低于所述杂共生物的沸点的共沸物，然后在塔的头部回收所述杂共生物，并在其底部 柱中含有至少一种氧化硼的悬浮液。 还描述了将至少一种饱和烃氧化成掺入相应的醇的产物的方法，其中氧化在氧化硼存在下用氧气进行氧化。 将氧化产物水解成原硼酸和醇，通过与有机相分离回收。 将含有硼酸的水相加入到硼酸甲酯形成区中，以与甲醇共沸的形式回收硼酸甲酯。 根据上述方法从所述共沸物中回收氧化硼，回收的氧化硼被循环到氧化阶段。

公开(公告)号：US4302298A

公开(公告)日：1981-11-24

申请号：US123539

申请日：1980-02-22

申请人： Paul Mikitenko ,  Lionel Asselineau

发明人： Paul Mikitenko ,  Lionel Asselineau

IPC分类号： C07C41/06 ,  C07C41/34 ,  B01D3/14

CPC分类号： C07C41/06 ,  C07C41/36 ,  C07C41/42

摘要： Process for isolating methyl tert-butyl ether contained in the reaction product of methanol with a C.sub.4 hydrocarbon cut containing isobutene, comprising fractionating said reaction product by introducing it at an intermediate point of a distillation zone, recovering methyl tert-butyl ether at the bottom thereof and, at the top thereof, a mixture of C.sub.4 hydrocarbons with methanol which is washed with water and condensed and wherefrom is separated a condensed C.sub.4 hydrocarbon fraction, a portion of which is fed back as reflux to the top of the distillation zone and another portion discharged, and separating the remaining water-methanol mixture by distillation.

摘要翻译： 将甲醇的反应产物中含有的甲基叔丁基醚与含有异丁烯的C 4烃馏分分离出来的方法，该方法包括在蒸馏区的中间点将所述反应产物分馏出来，在其底部回收甲基叔丁基醚 并且其顶部是C4烃与甲醇的混合物，其用水洗涤并冷凝，从中分离出冷凝的C4烃馏分，其中一部分作为回流反馈回蒸馏区的顶部，另一部分 排出，并通过蒸馏分离剩余的水 - 甲醇混合物。

公开(公告)号：US4168209A

公开(公告)日：1979-09-18

申请号：US884512

申请日：1978-03-08

申请人： Paul Mikitenko ,  Lionel Asselineau

发明人： Paul Mikitenko ,  Lionel Asselineau

IPC分类号： C07C7/08 ,  B01D3/36 ,  C07C7/06

CPC分类号： C07C7/08

摘要： Process for separating benzene and/or toluene from mixtures thereof with saturated hydrocarbons, by extractive distillation using an aliphatic N-alkylamide as extraction solvent, comprising introducing in the distillation column, above the level of introduction of the extraction solvent, liquid water in an amount and under such conditions that said water is completely vaporized without substantially diluting the solvent, condensing the vapors discharged from the top of the column and dividing the resulting condensate into a phase of liquid saturated hydrocarbons, and a phase of water.

摘要翻译： 通过使用脂族N-烷基酰胺作为提取溶剂的萃取蒸馏将苯和/或甲苯与其饱和烃的混合物分离的方法，包括在蒸馏塔中引入高于萃取溶剂的引入水平的量， 并且在所述水完全蒸发而基本上不稀释溶剂的条件下，将从塔顶排出的蒸汽冷凝并将所得冷凝物分成液相饱和烃相和水相。

公开(公告)号：US5536887A

公开(公告)日：1996-07-16

申请号：US319691

申请日：1994-10-07

申请人： Ari Minkkinen ,  Paul Mikitenko ,  Lionel Asselineau

发明人： Ari Minkkinen ,  Paul Mikitenko ,  Lionel Asselineau

IPC分类号： C07C41/06 ,  C07B61/00 ,  C07C41/42 ,  C07C43/04 ,  C07C41/00

CPC分类号： C07C41/42

摘要： Process for the production of tertiary ethers (MTBE, ETBE, TAME, ETAE) in which a hydrocarbon cut (1) containing four or five carbon atoms is reacted with methanol or ethanol (2, 3) in a reactor and recovering ethers (11) and a distillate (10) after distillation (C.sub.I). The distillate undergoes a first extractive distillation step in column (C.sub.11) in the presence of a solvent (27) which is selective towards olefinic hydrocarbons. A saturated hydrocarbon-rich overhead fraction (15) is recovered along with a bottom fraction (18) which is rich in olefins, solvent and alcohol. The olefins (20) are separated from the solvent and alcohol (24) in a second extractive distillation step (C.sub.III). The olefins are isomerised in a skeletal isomerisation reactor (5) and the isomerate is recycled (2) to reactor (6). The alcohol and solvent are separated in a stripping column (C.sub.IV). Alcohol (26) is recycled to the synthesis reactor (6) while the solvent (27) is recycled to C.sub.II. The temperature at the bottom of the second column (C.sub.III) can be reduced by addition of fresh (4) or recycled (34) alcohol.

摘要翻译： 生产叔胺（MTBE，ETBE，TAME，ETAE）的方法，其中将含有4或5个碳原子的烃馏分（1）与甲醇或乙醇（2,3）在反应器中反应并回收醚（11） 和蒸馏后的馏出物（10）（CI）。 馏出液在（C11）塔中，在对烯烃具有选择性的溶剂（27）的存在下进行第一萃取蒸馏步骤。 饱和富含烃的塔顶馏分（15）与富含烯烃，溶剂和醇的塔底馏分（18）一起回收。 在第二萃取蒸馏步骤（CIII）中将烯烃（20）与溶剂和醇（24）分离。 烯烃在骨架异构化反应器（5）中异构化，异构体再循环（2）至反应器（6）。 醇和溶剂在汽提塔（CIV）中分离。 将醇（26）再循环到合成反应器（6）中，同时将溶剂（27）再循环至CII。 通过添加新鲜（4）或再循环（34）酒精可以减少第二塔（CIII）底部的温度。

公开(公告)号：US5288370A

公开(公告)日：1994-02-22

申请号：US855755

申请日：1992-03-20

申请人： Lionel Asselineau ,  Alexandre Rojey

发明人： Lionel Asselineau ,  Alexandre Rojey

IPC分类号： C07C7/08 ,  C07C9/10 ,  C07C11/08 ,  B01D3/40

CPC分类号： C07C7/08

摘要： For the separation of butenes and butanes by extractive distillation, a charge mainly containing butenes and butanes is contacted in an extractive distillation column under pressure with a first selective polar solvent, S1 (e.g., dimethyl formamide), the butanes being collected at the top. The solvent S1 containing the butenes and passing out at the bottom is mixed with a second solvent, S2, having a boiling point intermediate between that of butenes and that of the solvent S1, the mixture passing into a desorption column under pressure, where the butenes are collected at the top. The mixture of solvent S1 and S2 is separated in a purification column under atmospheric pressure, the solvent S2 passing out at the top is recycled to the desorption column, and the solvent S1 passing out at the bottom is recycled to the extractive distillation column.

摘要翻译： 为了通过萃取蒸馏分离丁烯和丁烷，主要含有丁烯和丁烷的电荷在萃取蒸馏塔中在压力下与第一选择性极性溶剂S1（例如二甲基甲酰胺）接触，丁烷在顶部收集。 将含有丁烯并在底部排出的溶剂S1与第二溶剂S2混合，第二溶剂S2的沸点介于丁烯与溶剂S1的沸点之间，混合物在压力下进入解吸塔，其中丁烯 在顶部收集。 将溶剂S1和S2的混合物在大气压下在净化塔中分离，将顶部溶出的溶剂S2再循环至解吸塔，将底部排出的溶剂S1再循环至萃取蒸馏塔。

公开(公告)号：US5242550A

公开(公告)日：1993-09-07

申请号：US840976

申请日：1992-02-26

申请人： Lionel Asselineau ,  Paul Mikitenlo

发明人： Lionel Asselineau ,  Paul Mikitenlo

IPC分类号： C07C7/08 ,  C07C9/10 ,  C07C11/08

CPC分类号： C07C7/08

摘要： For the separation of butanes and butenes by extractive distillation, a charge mainly containing butanes and butenes is contacted in an extractive distillation column under pressure with a polar solvent (e.g., dimethyl formamide), the butanes being collected at the head. The solvent containing the butenes passes into a second column under pressure, where the butenes are partly desorbed and collected at the head. The solvent still containing butenes is purified in a third column under atmospheric pressure and the solvent-containing vapor distillate thereof is returned, after compression, to the lower part of the second column.

摘要翻译： 为了通过萃取蒸馏分离丁烷和丁烯，主要含有丁烷和丁烯的电荷在萃取蒸馏塔中在极压溶剂（例如二甲基甲酰胺）的压力下接触，丁烷在头部收集。 含有丁烯的溶剂在压力下进入第二塔，其中丁烯部分解吸并在头部收集。 仍然含有丁烯的溶剂在大气压下在第三塔中纯化，其含溶剂的蒸汽馏出物在压缩后返回到第二塔的下部。

公开(公告)号：US5368691A

公开(公告)日：1994-11-29

申请号：US991006

申请日：1992-12-16

申请人： Lionel Asselineau ,  Paul Mikitenko ,  Jean Charles Viltard ,  Massimo Zuliani

发明人： Lionel Asselineau ,  Paul Mikitenko ,  Jean Charles Viltard ,  Massimo Zuliani

IPC分类号： B01D3/34 ,  B01D3/00 ,  B01J8/02 ,  B01J8/04 ,  B01J8/20 ,  C07C2/66 ,  C07C15/073 ,  C07C15/085 ,  C07C41/06 ,  C07C41/42 ,  C07C43/04 ,  B01D3/26

CPC分类号： C07C41/42 ,  B01D3/009 ,  B01J8/02 ,  B01J8/0469 ,  B01J8/048 ,  C07C2/66 ,  C07C41/06 ,  B01J2208/00548 ,  B01J2208/0061 ,  Y02P20/127 ,  Y10S203/06

摘要： A reactive distillation process which makes it possible, in the same enclosure, to carry out a catalytic reaction and isolate by distillation the sought product, in which the liquid phase containing the reagents passes from bottom to top through at least one catalyst bed, without the vapor phase of the distillation traversing said catalyst beds. These operating characteristics occur in a reactive distillation zone (C) including an alternation of distillation cells (D) having one or more trays (5) and reaction cells (R) containing the catalyst beds and designed in such a way that the liquid phase flowing from a distillation tray (5) flows above an overflow ( 7) through a downpipe (6) and approaches the base of the catalyst bed (8), traverses the latter in a downward flow and is then allowed to flow over a distillation tray (5) of the following distillation cell (D), so that the distillation vapor circulating from bottom to top through the distillation trays (5) does not traverse said reaction cells (R). Each reaction cell (R) is physically separated from the adjacent distillation cell or cells (D). The process can in particular be applied to the synthesis reactions of tertiary alkyl ethers by the addition of aliphatic monoalcohols (methanol, ethanol) on isoolefins (isobutene, isopentene).

摘要翻译： 反应蒸馏方法使得在相同的外壳中可以进行催化反应并通过蒸馏分离所寻求的产物，其中含有试剂的液相从底部至顶部通过至少一个催化剂床，而没有 蒸馏蒸汽穿过所述催化剂床。 这些操作特性发生在包括具有一个或多个塔盘（5）和含有催化剂床的反应池（R）的蒸馏单元（D）的交替的反应蒸馏区（C）中，并且设计成使得液相流动 从蒸馏托盘（5）流过溢流器（7）通过降管（6）流动并接近催化剂床（8）的底部，以向下的流动方式穿过其中，然后允许其流过蒸馏塔盘（ 5），使得从底部到顶部通过蒸馏塔盘（5）循环的蒸馏蒸气不穿过所述反应池（R）。 每个反应池（R）与相邻的蒸馏单元（D）物理分离。 通过在异烯烃（异丁烯，异戊烯）上加入脂族一元醇（甲醇，乙醇），该方法特别适用于叔烷基醚的合成反应。

公开(公告)号：US4366032A

公开(公告)日：1982-12-28

申请号：US298432

申请日：1981-09-01

申请人： Paul Mikitenko ,  Lionel Asselineau

发明人： Paul Mikitenko ,  Lionel Asselineau

IPC分类号： C07C27/00 ,  C07C29/82 ,  C07C29/84 ,  C07C31/02 ,  C07C67/00 ,  B01D3/40

CPC分类号： C07C29/84 ,  C07C29/82 ,  Y10S203/14

摘要： Process for dehydrating aliphatic alcohols admixed with water wherein the alcohols-water mixture is subjected to a first fractionation in the presence of a selective solvent, giving a vapor effluent containing dehydrated light alcohols and a liquid phase containing heavy alcohols, water and the selective solvent, said liquid phase being subjected to a second fractionation giving as vapor effluent an hetero-azeotropic mixture of water and heavy alcohols and, as liquid effluent, the selective solvent, which is fed back, said hetero-azeotropic mixture being condensed and separated into:(a) a light phase of high alcohol content which is subjected to a third fractionation giving a vapor effluent which is fed back and dehydrated heavy alcohols as liquid effluent, and(b) a heavy phase which is subjected to a fourth fractionation giving a vapor effluent which is fed back and water as liquid effluent.

摘要翻译： 与水混合的脂肪醇脱水方法，其中醇 - 水混合物在选择性溶剂存在下进行第一分馏，得到含脱水轻醇的蒸气流出物和含有重醇，水和选择性溶剂的液相， 所述液相经受第二次分馏，作为蒸汽流出物，得到水和重醇的异质共沸混合物，并且作为反馈的选择性溶剂作为液体流出物，所述异质共沸混合物被冷凝并分离成： a）高酒精含量的轻相，其进行第三分馏，得到蒸汽流出物，其被反馈并脱水重醇作为液体流出物，和（b）重相，其进行第四分馏，得到蒸气流出物 其被反馈并且作为液体流出物的水。

公开(公告)号：US5609734A

公开(公告)日：1997-03-11

申请号：US336222

申请日：1994-11-07

申请人： Christian Streicher ,  Lionel Asselineau

发明人： Christian Streicher ,  Lionel Asselineau

IPC分类号： B01D53/22 ,  B01D3/14 ,  C07C7/00 ,  C07C41/06 ,  C07C41/42 ,  C07C43/04 ,  B01D3/36

CPC分类号： C07C7/005 ,  C07C41/42

摘要： A process for the separation of oxygenated compounds, containing mainly methanol and possibly a minor amount of water and/or dimethyl ether, from a mixture of hydrocarbons containing 3 to 8 carbon atoms containing said oxygenated compounds. The mixture is distilled in a distillation zone (D). A gaseous distillate (line 2) is taken overhead which contains methanol, possibly water, possibly dimethyl ether, and hydrocarbons. The gaseous distillate is separated in a separator (B) and at least one organic liquid phase is recovered (line 6) and sent as a reflux to the head of distillation zone D. An aqueous liquid phase (line 5) may possibly be recovered, also a gaseous phase (line 4). A phase (line 8) is extracted as a side stream from the distillation zone and sent to a permeation zone (PV) comprising at least one membrane which is selectively permeable to methanol; a permeation step is carried out on said phase. At least one methanol-enriched permeate (line 14) is recovered downstream of the permeation zone, preferably as a vapor, and at least one residue (line 11) is recovered upstream which is optionally recycled to the distillation zone. The purified hydrocarbon mixture is extracted (line 16) from the bottom of the distillation column.

摘要翻译： 从含有含氧化合物的含有3至8个碳原子的烃的混合物中分离含氧化合物的方法，该化合物主要含有甲醇和可能少量的水和/或二甲醚。 将混合物在蒸馏区（D）中蒸馏。 塔顶馏出气态馏分（管线2），其中含有甲醇，可能是水，可能是二甲醚和烃。 将气态馏出物在分离器（B）中分离并回收至少一个有机液相（管线6）并作为回流送至蒸馏区D的头部。可能回收含水液相（管线5） 也是气相（管线4）。 A相（管线8）作为来自蒸馏区的侧流提取并送至包含至少一个选择性可渗透甲醇的膜的渗透区（PV）; 对所述相进行渗透步骤。 至少一个甲醇富集的渗透物（管线14）在渗透区的下游，优选蒸气回收，并且至少一个残余物（管线11）被回收到上游，任选地再循环到蒸馏区。 从蒸馏塔的底部萃取纯化的烃混合物（管线16）。