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    Dividing wall column
    1.
    发明授权
    Dividing wall column 失效
    分隔墙柱

    公开(公告)号：US06958111B2

    公开(公告)日：2005-10-25

    申请号：US09847299

    申请日：2001-05-03

    Applicant: Harald Rust ,  Gerd Kaibel

    Inventor： Harald Rust ,  Gerd Kaibel

    IPC: B01D3/14 ,  B01D3/16

    CPC classification number: B01D3/141 ,  B01D3/146

    Abstract: In a dividing wall column comprising as segments a) an upper column region (6), b) an inflow section (7), c) an offtake section (8) and d) a lower column region (9), the inflow section b) (7) and the offtake section c) (8) are separated from one another laterally by a dividing wall (10) fixed in the column and the dividing wall (10) is located between the upper column region a) (6) and the lower column region d) (9). The present invention provides for the dividing wall (10) to be constructed at least partly of an elastic material, the dividing wall (10) to have a slightly overdimensional width and the dividing wall (10) to be fixed in the column by the dividing wall exercising an elastic recovery force on the interior wall of the column. The dividing wall can easily be installed in, in particular, relatively small columns.

    Abstract translation: 在分隔壁柱中，包括a）上列区域（6），b）流入部分（7），c）脱出部分（8）和d）下部列区域（9），流入部分b ）（7）和收拢部分c）（8）通过固定在塔中的分隔壁（10）横向隔开，分隔壁（10）位于上列区域a）（6）和 下列区域d）（9）。 本发明提供了至少部分地由弹性材料构成的分隔壁（10），该分隔壁（10）具有稍微过度的宽度，并且该分隔壁（10）通过分开固定在该塔中 墙壁在柱的内壁上弹性恢复力。 分隔壁可以容易地安装在特别是相对较小的柱中。

    Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone
    3.
    发明授权
    Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone 有权
    1,6-己二醇，1,5-戊二醇和己内酯的蒸馏加工方法和装置

    公开(公告)号：US07329330B2

    公开(公告)日：2008-02-12

    申请号：US10451738

    申请日：2002-01-08

    Applicant: Martin Gall ,  Gerd Kaibel ,  Thomas Krug ,  Harald Rust ,  Frank Stein

    Inventor： Martin Gall ,  Gerd Kaibel ,  Thomas Krug ,  Harald Rust ,  Frank Stein

    IPC: B01D3/14 ,  B01D3/42 ,  C07C29/80

    CPC classification number: C07D315/00 ,  B01D3/14 ,  B01D3/141 ,  C07C29/80 ,  Y10S203/20 ,  C07C31/26 ,  C07C31/20

    Abstract: A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region (1), a lower common column region (6), a feed section (2, 4) having a rectification section (2) and stripping section (4), and a take-off section (3, 5) having a stripping section (3) and rectification section (5), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section (2, 4) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section (3, 5), or in thermally coupled columns.

    Abstract translation: 通过蒸馏处理根据DE-A 196 07954的方法获得的含有1,6-己二醇（HDO），1,5-戊二醇（PDO）或己内酯（CLO）的粗产物的方法，以获得 相应的纯产品，在各种情况下在分隔壁塔（TK）中进行蒸馏处理，其中分隔壁（T）沿塔的纵向方向排列，形成上共同区域 （1），较低的公共列区域（6），具有整流部分（2）和汽提部分（4）的进料部分（2,4）和具有汽提部分的取出部分（3,5） （3）和整流部分（5），在进料部分（2,4）的中间区域供给相应的粗产物HDO，PLO或CLO，并将高沸点馏分（C）从底部 通过塔顶和中间锅炉馏分（B）从中间排出低沸点馏分（A） 起飞段（3,5）的区域，或热耦合柱。

    Starter for the devulcanisation of scrap rubber
    4.
    发明授权
    Starter for the devulcanisation of scrap rubber 有权

    公开(公告)号：US10131760B2

    公开(公告)日：2018-11-20

    申请号：US15623599

    申请日：2017-06-15

    Applicant: Harald Rust

    Inventor： Harald Rust

    IPC: B29B17/00 ,  C08J11/12 ,  B29B17/04 ,  B29C47/00 ,  B29C47/60 ,  C08J11/04 ,  B29K21/00 ,  B29C47/10 ,  B29C47/42 ,  B29K105/26 ,  B29K105/24

    Abstract: A method of devulcanizing crosslinked rubber uses a planetary roller extruder with a central spindle, planetary spindles, a housing, and a feed part. The method includes feeding vulcanized rubber through the feed part into the housing, rotating the central spindle about its rotational axis and thereby causing the planetary spindles to rotate about their rotational axes and revolve about the central spindle. This generates mechanical and thermal stress on the vulcanized rubber by kneading and/or crushing of the vulcanized rubber, breaking or destroying the molecular chains or bonds of the vulcanized rubber. The method further includes at least one of (A) adding particles of the vulcanized rubber eccentrically to the center of the planetary roller extruder module between the planetary spindles and (B) mechanically pressing particles of the vulcanized rubber between the planetary spindles with a crammer feeder.

    Method for producing hexanediol
    7.
    发明授权
    Method for producing hexanediol 失效
    己二醇的制备方法

    公开(公告)号：US06727395B1

    公开(公告)日：2004-04-27

    申请号：US10018338

    申请日：2001-12-19

    Applicant: Frank Stein ,  Thomas Krug ,  Thomas Nöbel ,  Harald Rust

    Inventor： Frank Stein ,  Thomas Krug ,  Thomas Nöbel ,  Harald Rust

    IPC: C07C2700

    CPC classification number: C07C29/149 ,  C07C31/20

    Abstract: A process for preparing 1,6-hexanediol from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol after water extraction of the reaction mixture followed by extraction with aqueous sodium hydroxide solution, by esterification of the acids and hydrogenation comprises a) liberating the carboxylic acids from the alkaline extract by addition of a mineral acid, b) fractionating the organic phase comprising carboxylic acids to give a distillate comprising the low molecular weight monocarboxylic acids and a residue comprising adipic acid and 6-hydroxycaproic acid, c) reacting the monocarboxylic an dicarboxylic acids present in the aqueous dicarboxylic acid mixture with a low molecular weight alcohol to give the corresponding carboxylic esters, d) freeing the esterification mixture obtained of excess alcohol and low boilers in a first distillation step, e) fractionating the bottom product in a second distillation step to give an ester fraction essentially free of 1,4-cyclohexanediols and a fraction comprising at least the major part of the 1,4-cyclohexanediols, f) catalytically hydrogenating the ester fraction which is essentially free of 1,4-cyclohexanediols and g) isolating 1,6-hexanediol from the hydrogenation product in a manner known per se in a final distillation step.

    Abstract translation: 从包含己二酸，6-羟基己酸和少量1,4-环己二醇的羧酸混合物制备1,6-己二醇的方法，其在水提取后在环己烷氧化成环己酮/环己醇时作为副产物获得 的反应混合物，然后用氢氧化钠水溶液萃取，通过酸的酯化和氢化反应，包括a）通过加入无机酸从碱性提取物中释放出羧酸，b）将包含羧酸的有机相分馏得到馏出物 包括低分子量单羧酸和包含己二酸和6-羟基己酸的残基，c）使一元羧酸与二羧酸混合物中存在的二羧酸与低分子量醇反应，得到相应的羧酸酯，d）释放 在第一馏出物中获得过量酒精和低锅炉的酯化混合物 e步骤，e）在第二蒸馏步骤中分馏底部产物，得到基本上不含1,4-环己烷二醇的酯馏分和至少包含大部分1,4-环己烷二醇的馏分，f）催化氢化酯 基本上不含1,4-环己烷二醇的馏分，和g）在最终蒸馏步骤中以本身已知的方式从氢化产物中分离出1,6-己二醇。

    Preparation of n-vinyllactams
    9.
    发明授权
    Preparation of n-vinyllactams 失效
    n-乙烯基内酰胺的制备

    公开(公告)号：US5670639A

    公开(公告)日：1997-09-23

    申请号：US614682

    申请日：1996-03-13

    Applicant: Martin Schmidt-Radde ,  Marc Heider ,  Albrecht Dams ,  Harald Rust

    Inventor： Martin Schmidt-Radde ,  Marc Heider ,  Albrecht Dams ,  Harald Rust

    IPC: C07D207/26 ,  C07D207/267 ,  C07D211/76 ,  C07D223/10

    CPC classification number: C07D207/267 ,  C07D211/76 ,  C07D223/10

    Abstract: N-Vinyllactams of the general formula I ##STR1## where n is from 1 to 3, are prepared by a process which comprises reaction of a lactam of the general formula II ##STR2## where n is from 1 to 3, with from 10 to 90 percent by weight of an aqueous alkali metal hydroxide solution with distillation at from 50.degree. to 250.degree. C. and from 1 to 100 mbar and with a residence time of from 0.1 to 5 hours and subsequent reaction with acetylene at from 60.degree. to 250.degree. C. and from 1 to 100 bar.

    Abstract translation: 通过包括将通式II的内酰胺（II）的反应的方法制备，其中n为1至3的通式I（I）的N-乙烯基内酰胺，其中n为1至3，其中n为1至 3，以10至90重量％的碱金属氢氧化物水溶液在50至250℃和1至100毫巴蒸馏下进行，停留时间为0.1至5小时，随后与乙炔反应 在60℃至250℃和1至100巴之间。

    Purification of esters of tetrahydro-pyran-4-carboxylic acid
    10.
    发明授权
    Purification of esters of tetrahydro-pyran-4-carboxylic acid 失效
    四氢 - 吡喃-4-羧酸酯的纯化

    公开(公告)号：US5414097A

    公开(公告)日：1995-05-09

    申请号：US185179

    申请日：1994-01-24

    Applicant: Rolf Fischer ,  Norbert Goetz ,  Thomas Kuekenhoehner ,  Harald Rust ,  Werner Schnurr

    Inventor： Rolf Fischer ,  Norbert Goetz ,  Thomas Kuekenhoehner ,  Harald Rust ,  Werner Schnurr

    IPC: C07D309/08

    CPC classification number: C07D309/08

    Abstract: A process for purifying esters of tetrahydropyran-4-carboxylic acid of the formula I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, and R.sup.2 and R.sup.3 are each additionally hydrogen, from mixtures produced in the reaction of butyrolactones of the formula II ##STR2## where R.sup.2 and R.sup.3 have the abovementioned meanings, and R.sup.4 is hydrogen, alkyl of 1-6 carbons or acyl of the formula --CO--R.sup.2, with alcohols of the formula R.sup.1 OH in the presence of oxide catalysts, by distillation, which entailsa) removing overhead, in a first column with 5-25 theoretical plates with a distillate pressure of 700-1100 mbar and a distillate temperature of 50.degree.-80.degree. C., an alcohol and up to 10% of the water,b) transferring the bottom product from the first column into a second column with 18-40 theoretical plates, into which a water entrainer is metered between plates 15 and 30, and is circulated, and which operates with a distillate pressure of 35-350 mbar and a distillate temperature of 18.degree.-70.degree. C., with the esters of tetrahydropyran-4-carboxylic acid being removed between plates 8 and 18 at 90.degree.-150.degree. C., and, where appropriate,c) feeding the bottom product from the second column into a third column with 5-25 theoretical plates, and returning the overhead products at a distillate pressure of 1-100 mbar and a distillate temperature of 90.degree.-140.degree. C. to the synthesis of the esters of tetrahydropyran-4-carboxylic acid.

    Abstract translation: 用于纯化式I的四氢吡喃-4-羧酸的酯的方法，其中R 1至R 3各自为C 1 -C 4 - 烷基，R 2和R 3各自为氢， 其中R 2和R 3具有上述含义，R 4是氢，1-6个碳的烷基或式-CO-R 2的酰基，其中式R 1 OH的醇在存在下 氧化物催化剂，通过蒸馏，其需要a）在具有5-25理论塔板的第一塔中，馏出物压力为700-1100毫巴，馏出物温度为50-80℃，醇和升高 至10％的水，b）将底部产物从第一塔转移到具有18-40理论塔板的第二塔中，其中在15和30之间计量水夹带剂，并循环，并且其以 馏出液压力为35-350毫巴，馏出物温度为18-70℃， 其中四氢吡喃-4-羧酸的酯在90℃-150℃下在板8和18之间除去，并且在适当的情况下，c）将底部产物从第二塔进料到具有5-25理论值的第三塔 将塔顶馏出物返回到馏出物压力为1-100毫巴，馏出液温度为90-140℃，以合成四氢吡喃-4-羧酸酯。

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