公开(公告)号：US4329458A

公开(公告)日：1982-05-11

申请号：US238328

申请日：1981-02-26

Applicant: Erich Klauke ,  Ernst Kysela ,  Arnd Stuwe ,  Alfons Dorlars

Inventor： Erich Klauke ,  Ernst Kysela ,  Arnd Stuwe ,  Alfons Dorlars

IPC: C07B61/00 ,  C07D251/28

CPC classification number: C07D251/28

Abstract: The present invention relates to a process for the preparation of 2,4,6-trifluoro-1,3,5-triazine (TFT) from 2,4,6-trichloro-1,3,5-triazine (TCT) or from mixed chlorinated/fluorinated 1,3,5-triazines by fluorination with sodium fluoride in dipolar aprotic solvents.The process is characterized in that TCT or mixed chlorinated/fluorinated 1,3,5-triazines or mixtures thereof are metered into a suspension of sodium fluoride in a dipolar, aprotic solvent, which is warmed to a temperature of between 120.degree. C. and 220.degree. C. and optionally contains a further solvent.

Abstract translation: 本发明涉及从2,4,6-三氯-1,3,5-三嗪（TCT）制备2,4,6-三氟-1,3,5-三嗪（TFT）或从 混合氯化/氟化1,3,5-三嗪通过氟化氟化物在偶极非质子溶剂中氟化。 该方法的特征在于将TCT或混合氯化/氟化1,3,5-三嗪或其混合物计量加入到氟化钠在偶极非质子溶剂中的悬浮液中，将其温热至120℃至 220℃，任选地含有另外的溶剂。

公开(公告)号：US5969205A

公开(公告)日：1999-10-19

申请号：US137860

申请日：1998-08-21

Applicant: Arnd Stuwe ,  Jorg-Uwe Michel ,  Matthias Baum ,  Franz Kaledat

Inventor： Arnd Stuwe ,  Jorg-Uwe Michel ,  Matthias Baum ,  Franz Kaledat

IPC: C07C5/25 ,  C07C5/23

CPC classification number: C07C5/2556 ,  C07C2521/04 ,  C07C2523/40 ,  C07C2523/42 ,  C07C2523/44

Abstract: C.sub.4 -C.sub.6 -alkenes having an internal double bond can be produced by hydroisomerization of C.sub.4 -C.sub.6 -alkenes having a terminal double bond in the presence of H.sub.2 on a catalyst having a content of a noble metal of group VIII of the Periodic Table of the Elements (Mendeleev), if C.sub.4 -C.sub.6 -alkenes having a terminal double bond are fed into a hydroisomerization reactor after preheating, as such or in a mixture with other hydrocarbons, and the reaction product is divided into a work-up stream and a recycle stream. The recycle stream is recycled to the inlet of the hydroisomerization reactor and is used there as feed together with the C.sub.4 -C.sub.6 -alkenes having a terminal double bond or with the hydrocarbon stream comprising the C.sub.4 -C.sub.6 -alkenes having a terminal double bond and with the H.sub.2.

Abstract translation: 具有内部双键的C 4 -C 6 - 烯烃可以通过在H 2存在下具有末端双键的C 4 -C 6 - 烯烃在具有元素周期表第VIII族贵金属的催化剂上进行加氢异构化来制备 元素（门德列夫），如果具有末端双键的C 4 -C 6 - 烯烃预热，或者与其它烃类混合，则将其加入加氢异构化反应器中，并将反应产物分成后处理流和再循环 流。 再循环流再循环到加氢异构化反应器的入口，并在那里作为进料与具有末端双键的C 4 -C 6烯烃一起使用，或者烃类物流包含具有末端双键的C 4 -C 6 - 烯烃和与 H2。

公开(公告)号：US06541652B2

公开(公告)日：2003-04-01

申请号：US09916336

申请日：2001-07-30

Applicant: Peter Prinz ,  Josef Schmitz ,  Gunter Schummer ,  Rainer Strobel ,  Arnd Stuwe

Inventor： Peter Prinz ,  Josef Schmitz ,  Gunter Schummer ,  Rainer Strobel ,  Arnd Stuwe

IPC: C07C25508

CPC classification number: C07C253/26 ,  B01D53/1418 ,  B01D53/1487 ,  C07C253/34 ,  Y02P20/51 ,  C07C255/08

Abstract: Process for isolating one or more organic substances from a gas mixture in which these organic substances are present, in which the gas mixture is subjected to a quenching in a column, characterized in that quenching is carried out in the upper part of the column and the quenching liquid is subjected to stripping in the lower part of the column.

公开(公告)号：US4144311A

公开(公告)日：1979-03-13

申请号：US817078

申请日：1977-07-18

Applicant: Michael Grosche ,  Roland Hofer ,  Arnd Stuwe

Inventor： Michael Grosche ,  Roland Hofer ,  Arnd Stuwe

IPC: H05B3/62 ,  B01J6/00 ,  B01J10/00 ,  C01D5/16 ,  F23G7/00 ,  C01F11/16

CPC classification number: C01D5/16 ,  B01J10/005 ,  B01J6/005 ,  C01D3/20 ,  F23G7/00 ,  Y10S423/12

Abstract: A process for purifying organically polluted salts comprising forming a melt of said salts at a temperature of from about 600.degree.to 1000.degree. C., and contacting salt melt with an oxygen-containing gas. Acidic or basic fluxes may be present. The heat to maintain the mass molten may be supplied by electrodes which dip into the melt and which may be hollow so oxygen can be introduced therethrough. A suitable apparatus is also described.

Abstract translation: 一种净化有机污染盐的方法，包括在约600℃至1000℃的温度下形成所述盐的熔体，并将盐熔体与含氧气体接触。 可能存在酸性或碱性助焊剂。 保持质量熔融的热量可以由浸入熔体中的电极提供，并且其可以是中空的，因此可以通过其引入氧气。 还描述了合适的装置。

公开(公告)号：US5789643A

公开(公告)日：1998-08-04

申请号：US960910

申请日：1997-10-30

Applicant: Jens Herwig ,  Hans-Jurgen Bister ,  Arnd Stuwe

Inventor： Jens Herwig ,  Hans-Jurgen Bister ,  Arnd Stuwe

IPC: C07C5/25 ,  C07C7/163 ,  C07C11/02 ,  C07C2/02 ,  C07C1/00

CPC classification number: C07C11/02 ,  C07C5/2556 ,  C07C7/163 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/46

Abstract: The i-butene present in a C.sub.4 raffinate I is subjected in a first step to a first hydroisomerization. The hydroisomerization product is subjected to fractional distillation, with essentially 2-butene and n-butane being obtained as bottom product and i-butene and i-butane being obtained as overhead product. The overhead product is condensed and the condensate is divided into two parts. One part is subjected to a second hydroisomerization and the second hydroisomerate is recycled to the upper third of the fractionation column. The other part of the condensed overhead product is fed to the oligomerization. The condensed overhead-product of the fractionation column is divided in such a manner that, based on 1 part by volume of condensate conducted to the oligomerization, 1-5 parts by volume are fed to the second hydroisomerization.

Abstract translation: 存在于C4萃余液I中的1-丁烯在第一步骤中进行第一加氢异构化。 将加氢异构化产物进行分馏，得到基本上2-丁烯和正丁烷作为底部产物，并将异丁烯和异丁烷作为塔顶产物得到。 塔顶产品被冷凝，冷凝物分为两部分。 一部分进行第二加氢异构化，第二加氢异构体再循环至分馏塔的上三分之一。 将冷凝的塔顶产物的另一部分进料至低聚反应。 将分馏塔的冷凝塔顶馏出物按照1体积份的进行低聚反应的冷凝物进行分配，将1-5体积份进料至第二加氢异构化。

公开(公告)号：US5091093A

公开(公告)日：1992-02-25

申请号：US725708

申请日：1991-07-03

Applicant: Jens Herwig ,  Arnd Stuwe ,  Joachim Grub

Inventor： Jens Herwig ,  Arnd Stuwe ,  Joachim Grub

IPC: B01D61/02 ,  C02F1/44 ,  C02F9/00 ,  C07C253/34 ,  C07C255/08

CPC classification number: C07C253/34 ,  B01D61/022 ,  C02F1/441 ,  C02F2101/38

Abstract: The effluent arising in the production of acrylonitrile can be purified by adjusting it to a pH value from 4 to 9 and then subjecting it to reverse osmosis at a membrane at a temperature from 10.degree. to 50.degree. C. and a differential pressure of 10 to 80 bar. The flow velocity at the membrane is adjusted to a value from 0.5 to 4 m/second. The concentrate is recycled into the acrylonitrile production process.

Abstract translation: 丙烯腈生产中出现的污水可以通过将其调节至4至9的pH值来纯化，然后在10℃至50℃的温度下在膜上进行反渗透，并将压差为10至 80吧。 将膜上的流速调整为0.5〜4m /秒。 浓缩物再循环到丙烯腈生产过程中。

公开(公告)号：US6074982A

公开(公告)日：2000-06-13

申请号：US954539

申请日：1997-10-20

Applicant: Hans-Jurgen Bister ,  Arnd Stuwe ,  Herbert Tschorn ,  Rudolf Wagner ,  Werner Struver

Inventor： Hans-Jurgen Bister ,  Arnd Stuwe ,  Herbert Tschorn ,  Rudolf Wagner ,  Werner Struver

IPC: B01J31/22 ,  B01J23/89 ,  B01J31/10 ,  C07B61/00 ,  C07C5/22 ,  C07C9/10 ,  C07C9/14 ,  C07C11/02 ,  C07C41/06 ,  C07C43/04 ,  C10G3/00 ,  C10G35/04 ,  B01J23/00 ,  B01J23/40

CPC classification number: B01J31/10 ,  C07C41/06 ,  B01J2231/4288 ,  B01J2231/52 ,  B01J2231/645 ,  B01J23/89

Abstract: A catalytic agent for etherifying, hydrogenating and isomerizing crude C.sub.4 -C.sub.8 -- hydrocarbon mixtures having a sulfur content, comprising a macroporous or gel cation exchanger having SO.sub.3 H groups and being charged with a mixture of a metal selected from the group consisting of Pd, Ru, Rh and Pt with a metal selected from the group consisting of Fe, Co, Ni, Cu, Ag and W.

Abstract translation: 用于醚化，氢化和异构化具有硫含量的粗C4-C8-烃混合物的催化剂，其包含具有SO 3 H基团的大孔或凝胶阳离子交换剂，并装载有选自Pd，Ru， Rh和Pt与选自Fe，Co，Ni，Cu，Ag和W的金属组成。

公开(公告)号：US5141525A

公开(公告)日：1992-08-25

申请号：US687269

申请日：1991-04-18

Applicant: Arnd Stuwe ,  Herbert Tschorn ,  Hans-Volker Scheef ,  Jorg-Uwe Michel

Inventor： Arnd Stuwe ,  Herbert Tschorn ,  Hans-Volker Scheef ,  Jorg-Uwe Michel

IPC: B01J31/10 ,  B01J31/28 ,  C07C41/06 ,  C10L1/02 ,  C10L10/10

CPC classification number: C07C41/06 ,  C10L1/023

Abstract: High-octane, low-olefin motor fuels and motor fuel components having a content of alkyl tert.-alkyl ethers can be produced by reacting a crude hydrocarbon stream, which contains tertiary C.sub.5 -C.sub.8 -olefins in addition to saturated and olefinically, diolefinically and acetylenically unsaturated hydrocarbons in the same boiling range, simultaneously with one or more C.sub.1 -C.sub.4 -alkanols in a quantity from 0.5 to 5 mol per mol of the tertiary olefin(s) and with excess hydrogen relative to the total unsaturation under a pressure from 12 to 80 bar and at a temperature from 60.degree. to 180.degree. C. on a catalyst known per se or a mixture of catalysts known per se, which effect(s) both the etherification and the olefin hydrogenation.

Abstract translation: 具有烷基叔烷基醚含量的高辛烷值，低烯烃运动燃料和发动机燃料组分可以通过使含有叔C5-C8-烯烃的粗烃流除饱和和烯属二烯烃和 在相同沸点范围内的炔属不饱和烃，同时具有一种或多种相对于总不饱和度为0.5至5摩尔的每摩尔叔烯烃的一种或多种C 1 -C 4 - 链烷醇和在12压力下的总不饱和度 至80巴，温度为60℃至180℃的本身已知的催化剂或本身已知的催化剂的混合物，其同时进行醚化和烯烃氢化。

公开(公告)号：US4600542A

公开(公告)日：1986-07-15

申请号：US232797

申请日：1981-02-09

Applicant: Otto Lindner ,  Heinrich Pelster ,  Guido Steffan ,  Arnd Stuwe

Inventor： Otto Lindner ,  Heinrich Pelster ,  Guido Steffan ,  Arnd Stuwe

IPC: C07C309/43 ,  C07C67/00 ,  C07C301/00 ,  C07C303/00 ,  C07C303/06 ,  C07C309/35 ,  C07C143/24

CPC classification number: C07C309/00

Abstract: The invention concerns new sulfonation products of naphthalene, process for their preparation according to which naphthalene is sulfonated under special reaction conditions by sulfur trioxide in inert organic solvents. The new sulfonation products are used as intermediates e.g. for the production of naphthalene-1,5-disulfonic acid.

Abstract translation: 本发明涉及萘的新磺化产物，其制备方法是根据其在惰性有机溶剂中的三氧化硫在特殊反应条件下将萘磺化的方法。 新的磺化产物用作例如中间体。 用于生产萘-1,5-二磺酸。