公开(公告)号：US20070270614A1

公开(公告)日：2007-11-22

申请号：US10573185

申请日：2004-09-24

申请人： Werner Reutemann ,  Rolf Wambsganss ,  Frank Poplow ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

发明人： Werner Reutemann ,  Rolf Wambsganss ,  Frank Poplow ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

IPC分类号： C07C209/14

CPC分类号： C07C209/16 ,  C07C211/04

摘要： The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.

摘要翻译： 本发明涉及通过甲醇和氨作为起始原料在非均相催化剂存在下在15至30巴的压力下气相反应制备甲胺的方法。 起始材料在一个或多个热交换器（1,2,3）中蒸发，过热以产生进料气流，并随后进料到反应器（4）中，原料的混合能够进行 到一个热交换器（1,2,3）或在热交换器（1,2,3）中的任何期望位置的进料流。 从反应器（4）中取出包含一甲胺，二甲胺和三甲胺以及反应副产物的产物气流。 为了将原料的反应器入口温度控制在360℃至370℃的温度范围内，所有或一些进料气流或产物气流通过可调节阀（5），其中 以改变压力，从而改变冷凝温度。

公开(公告)号：US5189216A

公开(公告)日：1993-02-23

申请号：US730768

申请日：1991-07-16

申请人： Hans Kiefer ,  Werner Reutemann

发明人： Hans Kiefer ,  Werner Reutemann

IPC分类号： C07C51/50 ,  C07C51/48 ,  C07C53/02 ,  C07C53/08 ,  C07C53/122 ,  C07C57/07 ,  C07C231/02 ,  C07C233/04 ,  C07C233/05 ,  C07C233/06 ,  C07C233/07

CPC分类号： C07C51/48

摘要： A process for the isolation of a carboxylic acid of the general formula (I)R.sup.1 --COOH (I),in which R.sup.1 denotes hydrogen, methyl, ethyl, or vinyl, from a dilute aqueous solution thereof by extraction with a secondary amide of the general formula (II) ##STR1## in which R.sup.1 has the meanings stated, and R.sup.2 and R.sup.3 are independently of each other C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.4 -C.sub.20 -cycloalkylalkyl, aryl, C.sub.7 -C.sub.20 -aralkyl, or R.sup.2 and R.sup.3 together form a 1,4- or 1,5-alkylene group which may be mono- to penta-substituted by C.sub.1 -C.sub.4 -alkyl, wherein the losses of secondary amide (II) are compensated by the addition of the corresponding amine of the general formula (III) ##STR2## in which R.sup.2 and R.sup.3 have the meanings stated above.

摘要翻译： 通过用二级酰胺萃取从其稀水溶液中分离通式（I）的羧酸R1-COOH（I）的方法，其中R 1表示氢，甲基，乙基或乙烯基 通式（II）其中R 1具有所述的含义，并且R 2和R 3彼此独立地为C 1 -C 8 - 烷基，C 3 -C 8 - 环烷基，C 4 -C 20环烷基烷基，芳基， C 20 - 芳烷基或R 2和R 3一起形成可被C 1 -C 4烷基单 - 五取代的1,4-亚烷基或1,5-亚烷基，其中仲酰胺（II）的损失由 加入其中R2和R3具有上述含义的通式（III）的相应胺。

公开(公告)号：US07309403B2

公开(公告)日：2007-12-18

申请号：US10572783

申请日：2004-09-24

申请人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

发明人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

IPC分类号： B01D3/38 ,  B01D3/40 ,  C07C209/86 ,  C07C209/90

CPC分类号： C07C211/04 ,  C07C209/86 ,  Y10S203/20 ,  Y10S203/24

摘要： The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream (10) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column (1), the remaining components of the product stream obtained as bottoms (12) are fed to a second column (2). Trimethylamine (14) is separated off in the second column (2) by extractive distillation with introduction of water. The further of the product stream obtained as bottoms (15) from the second column (2) are fed to a third column (3), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column (4). To avoid corrosion alkali metal hydroxide is added to the second or third column (3).

摘要翻译： 本发明涉及一种避免在甲醇与甲醇与氨的气相反应制备甲胺中得到的产物流（10）中分离甲胺的腐蚀方法，包括一甲胺，二甲胺，三甲胺，氨和甲醇 组分，其中在第一塔（1）中通过纯蒸馏分离氨，将作为塔底物（12）获得的产物流的剩余组分进料至第二塔（2）。 通过萃取蒸馏引入三水胺（14）在第二塔（2）中分离。 从第二塔（2）获得的作为塔底物（15）获得的产物流的其它组分进料到第三塔（3），其中一甲胺和二甲胺在顶部分离。 在第四列（4）中通过蒸馏分离一甲胺和二甲胺。 为了避免腐蚀，将碱金属氢氧化物加入到第二或第三塔（3）中。

公开(公告)号：US20060243584A1

公开(公告)日：2006-11-02

申请号：US10572783

申请日：2004-09-24

申请人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

发明人： Werner Reutemann ,  Theodor Weber ,  Karl-Heinz Ross ,  Manfred Julius

IPC分类号： B01D3/34

CPC分类号： C07C211/04 ,  C07C209/86 ,  Y10S203/20 ,  Y10S203/24

摘要： The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream (10) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and comprises monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column (1), the remaining components of the product stream obtained as bottoms (12) are fed to a second column (2). Trimethylamine (14) is separated off in the second column (2) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms (15) from the second column (2) are fed to a third column (3), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column (4). To avoid corrosion alkali metal hydroxide is added to the second or third column (3).

摘要翻译： 本发明涉及一种避免在从甲醇和氨气相反应制备甲胺中得到的产物流（10）中甲胺分离腐蚀的方法，包括一甲胺，二甲胺，三甲胺，氨和甲醇 组分，其中在第一塔（1）中通过纯蒸馏分离氨，将作为塔底物（12）获得的产物流的剩余组分进料至第二塔（2）。 通过萃取蒸馏引入三水胺（14）在第二塔（2）中分离。 从第二塔（2）获得的作为塔底物（15）获得的产物流的其它组分进料到第三塔（3），其中一甲胺和二甲胺在顶部分离。 在第四列（4）中通过蒸馏分离一甲胺和二甲胺。 为了避免腐蚀，将碱金属氢氧化物加入到第二或第三塔（3）中。

公开(公告)号：US07518020B2

公开(公告)日：2009-04-14

申请号：US10573185

申请日：2004-09-24

申请人： Werner Reutemann ,  Rolf Wambsganβ ,  Frank Poplow ,  Theodor Weber ,  Karl-Heinz Roβ ,  Manfred Julius

发明人： Werner Reutemann ,  Rolf Wambsganβ ,  Frank Poplow ,  Theodor Weber ,  Karl-Heinz Roβ ,  Manfred Julius

IPC分类号： C07C209/16

CPC分类号： C07C209/16 ,  C07C211/04

摘要： The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.

摘要翻译： 本发明涉及通过甲醇和氨作为起始原料在非均相催化剂存在下在15至30巴的压力下气相反应制备甲胺的方法。 起始材料在一个或多个热交换器（1,2,3）中蒸发，过热以产生进料气流，并随后进料到反应器（4）中，原料的混合能够进行 到一个热交换器（1,2,3）或在热交换器（1,2,3）中的任何期望位置的进料流。 从反应器（4）中取出包含一甲胺，二甲胺和三甲胺以及反应副产物的产物气流。 为了将原料的反应器入口温度控制在360℃至370℃的温度范围内，所有或一些进料气流或产物气流通过可调节阀（5），其中 以改变压力，从而改变冷凝温度。

公开(公告)号：US5545757A

公开(公告)日：1996-08-13

申请号：US413128

申请日：1995-03-17

申请人： Hans Hammer ,  Werner Reutemann

发明人： Hans Hammer ,  Werner Reutemann

IPC分类号： C07C213/04 ,  C07C209/60

CPC分类号： C07C213/04

摘要： A process for producing mixtures of mono-, di- and triethanol-amine by reacting ammonia and ethylene oxide in a cooled tubular reactor at temperatures from 110.degree. to 160.degree. C. and pressures from 50 to 120 bar comprises using ammonia and ethylene oxide in a molar ratio from 1:1 to 100:1 and ammonia in the form of a from 60 to 99.99% strength aqueous solution and adding from 1 to 80% of the ethylene oxide in from one to ten aliquots over from 10 to 70% of the total length of the tubular reactor.

摘要翻译： 在冷却的管式反应器中，在110至160℃的温度和50至120巴的压力下，通过氨和环氧乙烷反应制备单 - ，二 - 和三乙醇胺的混合物的方法包括使用氨和环氧乙烷 以1:1至100:1的摩尔比和60至99.99％浓度的水溶液形式的氨，并将1至80％的环氧乙烷从1至10个等分试样中加入10至70％的 管式反应器的总长度。