公开(公告)号：US20160185711A1

公开(公告)日：2016-06-30

申请号：US14978556

申请日：2015-12-22

Applicant: Zhejiang Rongyao Biotech CO., LTD.

Inventor： RENER CHEN ,  FEI SHI ,  JIANHUA CHEN ,  NA ZHANG

IPC: C07C231/02 ,  B01J19/18 ,  C07C201/08 ,  C01B17/94 ,  C07C201/12

CPC classification number: C07C231/02 ,  C01B17/94 ,  C07C201/08 ,  C07C201/12 ,  C07C205/57

Abstract: A process and a device for recycling waste acid produced in the process of producing Zoalene. The process comprises steps: heating, depressurizing and distilling the waste acid recycled after nitration reaction; collecting acid liquid A and distilled water A; mixing the acid liquid A with new concentrated sulfuric acid in proportion, and putting the mixture to a new Zoalene nitration reaction process; and putting the distilled water A into a diluting pot for diluting the liquid produced in the nitration reaction. The waste acid produced in the process of producing Zoalene is recycled and not directly discharged; water resources are recycled, waste of the water resources is reduced, and discharge of waste water produced in the process of producing Zoalene is greatly reduced, so that not only production cost is saved, but also environment pressure is reduced.

Abstract translation: 用于回收在生产Zoalene过程中产生的废酸的方法和装置。 该方法包括以下步骤：对硝化反应后再循环的废酸进行加热，减压和蒸馏; 收集酸性液体A和蒸馏水A; 将酸性液体A与新的浓硫酸成比例混合，并将混合物置于新的Zoalene硝化反应过程中; 并将蒸馏水A放入用于稀释硝化反应中产生的液体的稀释罐中。 在生产Zoalene过程中产生的废酸被回收利用，不能直接排放; 水资源循环利用，水资源浪费减少，生产Zoalene过程中产生的废水排放量大大减少，不仅节省了生产成本，而且降低了环境压力。

公开(公告)号：US20160060152A1

公开(公告)日：2016-03-03

申请号：US14784699

申请日：2014-04-14

Applicant: BAYER MATERIALSCIENCE AG

Inventor： Thomas Knauf ,  Antoni Mairata ,  Erik Sluyts ,  Jan Van Tricht

IPC: C02F9/00 ,  C07C209/36 ,  C07C201/16 ,  C02F1/02 ,  C02F1/20

CPC classification number: C02F9/00 ,  C02F1/025 ,  C02F1/04 ,  C02F1/20 ,  C02F2101/322 ,  C02F2101/38 ,  C02F2103/18 ,  C02F2209/06 ,  C02F2301/046 ,  C07C201/08 ,  C07C201/16 ,  C07C209/36 ,  C07C205/06

Abstract: The invention relates to a process for working up alkaline waste water which is formed during washing of crude nitrobenzene obtained by nitration of benzene, wherein (i) the alkaline waste water is heated under an increased pressure with respect to atmospheric pressure with exclusion of oxygen and is then cooled and expanded; (ii) the waste water obtained in (i) is purified further by stripping with a stripping gas and the stripping gas stream loaded with impurities is then cooled to a temperature of from 10° C. to 60° C.; and (iii) the liquid process product obtained in (ii) by cooling the stripping gas stream loaded with impurities is separated into an aqueous and an organic phase and the organic phase is used further in an aniline production process.

Abstract translation: 本发明涉及一种处理在通过硝化苯得到的粗硝基苯洗涤过程中形成的碱性废水的方法，其中（i）碱性废水在相对于大气压的增压下被加热而排除氧气， 然后冷却和膨胀; （ii）（i）中获得的废水通过汽提气体进一步纯化，然后将装有杂质的汽提气流冷却至10℃至60℃的温度; 和（iii）通过将负载有杂质的汽提气体冷却而获得的（ii）中获得的液体处理产物分离成水相和有机相，有机相进一步用于苯胺生产过程。

公开(公告)号：US09227909B2

公开(公告)日：2016-01-05

申请号：US14046068

申请日：2013-10-04

Applicant: Bayer MaterialScience AG

Inventor： Thomas Knauf ,  Jurgen Munnig ,  Joerg Schmiedler

IPC: C07C201/08

CPC classification number: C07C201/08 ,  C07C201/16 ,  C07C205/06

Abstract: The present invention relates to a method for producing nitrobenzene, in which the waste gas streams accruing in the process and containing benzene and (traces of) nitrobenzene, possibly low- and medium-boiling components, possibly non-condensable gases and possibly water, optionally after removal of nitrogen oxides, are scrubbed in an absorption column with nitrobenzene, which comprises only very small amounts (maximum 50 ppm) of benzene and is distributed by means of a liquid distributor at a rate of 50 to 200 drip points per square meter, preferably 60 to 120 drip points per square meter, wherein (i) a liquid stream containing benzene and nitrobenzene, possibly organic low- and medium-boiling components and additionally containing sulfuric acid if sulfuric acid is used as the scrubbing agent and (ii) waste gas depleted in benzene and possibly in organic low- and medium-boiling components are obtained. A waste gas purified by the method according to the invention is particularly suitable for burning in a thermal exhaust air treatment process.

Abstract translation: 本发明涉及生产硝基苯的方法，其中在该方法中产生的含有苯和（痕量）硝基苯的废气流，可能是低沸点和中沸点组分，可能是不可冷凝气体和可能的水，任选地 在除去氮氧化物之后，用硝基苯洗涤吸收塔，硝基苯仅包含极少量（最大50ppm）的苯，并以50至200滴每平方米的液滴分配器分配， 优选60至120滴/平方米，其中（i）含有苯和硝基苯的液体流，可能是有机低沸点和中沸点组分，如果使用硫酸作为洗涤剂，另外含有硫酸，和（ii）废物 获得了在苯中以及可能在有机低沸点和中沸点组分中贫化的气体。 通过根据本发明的方法净化的废气特别适用于在热排气处理过程中燃烧。

公开(公告)号：US20150352488A1

公开(公告)日：2015-12-10

申请号：US14300504

申请日：2014-06-10

Applicant: Bayer MaterialScience LLC ,  Bayer MaterialScience AG

Inventor： Bernd Pennemann ,  Ulrich Westphal ,  Dieter Foertsch ,  Spotswood Miller

IPC: B01D53/56 ,  C07C201/08 ,  C07C209/76 ,  B01D53/77 ,  C07C209/32

CPC classification number: B01D53/56 ,  B01D53/77 ,  C07C201/08 ,  C07C209/32 ,  C07C209/36 ,  C07C209/76 ,  C07C209/34 ,  C07C211/49 ,  C07C211/47 ,  C07C205/06 ,  C07C211/46

Abstract: The invention relates to a method for reducing the concentration of nitrogen oxides in waste gases released dating the production of organic amino compounds, wherein an organic compound is first reacted with NOx and/or nitric acid to form an organic nitro compound with the formation of an NOx-containing waste gas stream and the organic nitro compound is converted to the organic ammo compound by means of hydrogen-containing reaction gas, the reaction of the organic nitro compound with the hydrogen-containing reduction gas taking place with the formation of a hydrogen-containing waste gas stream, the method being characterised in that the NOx-containing waste gas stream is combined with the hydrogen-containing waste gas stream and/or an externally supplied hydrogen stream and is reacted at a temperature of 800 to 1700° C. for the at least partial reduction of the NOx concentration. The invention additionally relates to an apparatus for carrying out the method.

Abstract translation: 本发明涉及一种用于降低生产有机氨基化合物释放的废气中的氮氧化物浓度的方法，其中有机化合物首先与NO x和/或硝酸反应以形成有机硝基化合物，形成 含有NOx的废气流和有机硝基化合物通过含氢反应气体转化为有机氨基化合物，有机硝基化合物与含氢还原气体的反应发生，形成氢 - 该方法的特征在于，将含NO x的废气流与含氢废气流和/或外部供应的氢气流合并，并在800至1700℃的温度下反应，以便 NOx浓度的至少部分降低。 本发明还涉及一种用于执行该方法的装置。

公开(公告)号：US20150329472A1

公开(公告)日：2015-11-19

申请号：US14652913

申请日：2013-12-20

Applicant: NIPPON SODA CO., LTD.

Inventor： Hiroki Inoue ,  Yuzuru Sakata ,  Shinichi Kobayashi ,  Yoshikazu Ito ,  Takashi Kitayama

IPC: C07C209/74 ,  C07C209/32 ,  C07C17/00 ,  C07C201/14 ,  C07C211/52 ,  C07C205/12

CPC classification number: C07C209/74 ,  C07C17/00 ,  C07C17/06 ,  C07C17/12 ,  C07C201/08 ,  C07C201/14 ,  C07C205/12 ,  C07C209/32 ,  C07C211/52 ,  C07C25/13

Abstract: The present invention provides a halogenated aniline represented by formula (I) (wherein each of X1 and X2 independently represents a chlorine atom, a bromine atom or an iodine atom), a method for producing the halogenated aniline, and other aspects.

Abstract translation: 本发明提供由式（I）表示的卤代苯胺（其中X1和X2各自独立地表示氯原子，溴原子或碘原子），卤代苯胺的制造方法等。

公开(公告)号：US09102586B2

公开(公告)日：2015-08-11

申请号：US14159875

申请日：2014-01-21

Applicant: Huntsman International LLC

Inventor： Arend-Jan Zeeuw ,  Mark Geoffrey Bent

IPC: C07C211/00 ,  C07C209/00 ,  C07C209/68 ,  C07C209/36 ,  C07C209/78 ,  C07C201/08 ,  C07C209/82 ,  C02F1/20 ,  C02F9/00 ,  C02F101/32 ,  C02F101/38

CPC classification number: C07C209/68 ,  C02F1/20 ,  C02F9/00 ,  C02F2101/322 ,  C02F2101/38 ,  C07C201/08 ,  C07C209/36 ,  C07C209/78 ,  C07C209/82 ,  C07C211/46 ,  C07C205/06 ,  C07C211/50

Abstract: According to the present invention, a method of producing DADPM is provided. The method comprises: converting benzene into nitrobenzene thereby providing a nitrobenzene stream and a first aqueous waste stream comprising nitrobenzene; converting said nitrobenzene from said nitrobenzene stream into aniline, thereby providing an aniline stream and a first part of a second aqueous waste stream comprising aniline; removing nitrobenzene from said aniline prior to converting said aniline from said aniline stream into DADPM; converting said aniline from said aniline stream into DADPM thereby providing a second part of said second aqueous waste stream comprising aniline; stripping aniline and nitrobenzene from said first and second aqueous waste stream by means of a stripping column; providing the stripped aniline and nitrobenzene to said aniline cleaning apparatus or to said nitrobenzene stream.

Abstract translation: 根据本发明，提供了一种生产DADPM的方法。 该方法包括：将苯转化为硝基苯，从而提供硝基苯料流和包含硝基苯的第一含水废液流; 将所述硝基苯从所述硝基苯流转化成苯胺，从而提供苯胺流和包含苯胺的第二含水废液流的第一部分; 在将所述苯胺从所述苯胺流转化为DADPM之前，从所述苯胺中除去硝基苯; 将所述苯胺从所述苯胺流转化成DADPM，从而提供包含苯胺的所述第二含水废液流的第二部分; 通过汽提塔从所述第一和第二废水流中汽提苯胺和硝基苯; 向所述苯胺清洁装置或所述硝基苯流提供汽提的苯胺和硝基苯。

公开(公告)号：US20150073180A1

公开(公告)日：2015-03-12

申请号：US14240058

申请日：2012-08-29

Applicant: Thomas Knauf ,  Michael Merkel

Inventor： Thomas Knauf ,  Michael Merkel

IPC: C07C201/06 ,  C07C205/06

CPC classification number: C07C201/06 ,  C07C201/08 ,  C07C201/16 ,  C07C205/06 ,  C07C209/36 ,  C07C211/46

Abstract: The invention relates to a method for producing nitrobenzene, in which crude nitrobenzene is first produced by nitrating benzene and said crude nitrobenzene is then washed in succession in at least one acid wash, in at least one alkaline wash and in at least one neutral wash, at least one additional wash with an aqueous solution of a potassium salt being interposed between the last alkaline wash and the first neutral wash.

Abstract translation: 本发明涉及生产硝基苯的方法，其中首先通过硝化苯生产粗硝基苯，然后将所述粗硝基苯在至少一种酸洗涤液，至少一种碱性洗涤液和至少一种中性洗涤液中连续洗涤， 在最后的碱性洗涤和第一中性洗涤之间插入钾盐水溶液至少一次另外的洗涤。

公开(公告)号：US08765957B2

公开(公告)日：2014-07-01

申请号：US13908349

申请日：2013-06-03

Applicant: Vertex Pharmaceuticals Incorporated

Inventor： John DeMattei ,  Adam R. Looker ,  Bobbianna Neubert-Langille ,  Martin Trudeau ,  Stefanie Roeper ,  Michael P. Ryan ,  Dahrika Milfred Yap Guerette ,  Brian R. Krueger ,  Peter D. J. Grootenhuis ,  Fredrick F. Van Goor ,  Martyn C. Botfield ,  Gregor Zlokarnik

IPC: C07D215/56 ,  C07C69/96

CPC classification number: C07C205/43 ,  C07C68/02 ,  C07C69/96 ,  C07C201/08 ,  C07C213/02 ,  C07C229/66 ,  C07D215/233 ,  C07D215/56 ,  G01N33/5041 ,  G01N33/6872 ,  Y02P20/55

Abstract: The invention provides a process for the preparation of a compound of Formula 1, comprising coupling a carboxylic acid of Formula 2 with an aniline of Formula 3 in the presence of a coupling agent.

公开(公告)号：US08642781B2

公开(公告)日：2014-02-04

申请号：US12870188

申请日：2010-08-27

Applicant: David Richard Corbin ,  Joachim C. Ritter ,  James A. Schultz ,  Sourav Kumar Sengupta ,  Katelyn Rae Walck

Inventor： David Richard Corbin ,  Joachim C. Ritter ,  James A. Schultz ,  Sourav Kumar Sengupta ,  Katelyn Rae Walck

IPC: C07C209/00

CPC classification number: C07C201/08 ,  C07C205/06

Abstract: Aromatic compounds such as o-xylene are selectively nitrated by nitric acid in the presence of polyphosphoric acid and a large pore, acidic zeolite or a large pore, hydrophobic molecular sieve. This is an environmentally friendly, commercially viable, high conversion process for the selective nitration of aromatic compounds in the para position.

Abstract translation: 芳族化合物如邻二甲苯在多磷酸和大孔，酸性沸石或大孔疏水分子筛存在下，被硝酸选择性硝化。 这是一种环保，商业上可行的高转化率方法，用于选择性硝化对位芳族化合物。

公开(公告)号：US08604256B2

公开(公告)日：2013-12-10

申请号：US13129023

申请日：2008-11-14

Applicant: Sergio Berretta ,  David A. Boyd

Inventor： Sergio Berretta ,  David A. Boyd

IPC: C07C205/00

CPC classification number: C07C201/08 ,  B01J2219/00006 ,  C07C205/06

Abstract: A method for making mononitrobenzene using a plug flow reactor train. Benzene, nitric acid and sulfuric acid are introduced into the reactor and produced mononitrobenzene is removed at an outlet end. All of the benzene and at least part of the sulfuric acid are introduced at the inlet end of the reactor. A first portion of the nitric acid is introduced by a first nitric acid feed into the inlet end and a second portion of the nitric acid is introduced at one or more additional feeds that are spaced between the inlet end and the outlet end. The method results in reduced formation of by-product dinitrobenzene, improving the reaction yield of mononitrobenzene while avoiding the need for a distillation step.

Abstract translation: 使用活塞流反应器列车制备单硝基苯的方法。 将苯，硝酸和硫酸引入反应器中，并在出口端除去产生的单硝基苯。 所有的苯和至少一部分硫酸在反应器的入口端引入。 硝酸的第一部分通过第一硝酸进料引入入口端，并且硝酸的第二部分被引入在入口端和出口端之间间隔开的一个或多个另外的进料处。 该方法导致副产物二硝基苯的形成减少，提高了单硝基苯的反应产率，同时避免了蒸馏步骤的需要。