公开(公告)号：US11737460B2

公开(公告)日：2023-08-29

申请号：US16946513

申请日：2020-06-25

申请人： ECOLAB USA INC.

发明人： Paul R. Kraus ,  Benjamin Crew ,  Junzhong Li ,  David D. McSherry ,  Ramakrishnan Balasubramanian ,  Richard Staub ,  Ariel Chatman Kleczewski ,  Minh Tran ,  Catherine Hanson ,  Irwan Yunus ,  Jeffery D. Breshears ,  Brian Paul Brunner

IPC分类号： A01N37/36 ,  A01N37/16 ,  B01J19/18 ,  A23L3/3499 ,  C07C407/00 ,  A23L3/3463 ,  A23L3/3481 ,  C23F11/10 ,  B01J19/24 ,  C07C51/367

CPC分类号： A01N37/36 ,  A01N37/16 ,  A23L3/3463 ,  A23L3/3481 ,  A23L3/3499 ,  B01J19/1812 ,  B01J19/1818 ,  B01J19/2415 ,  C07C51/367 ,  C07C407/00 ,  C23F11/10 ,  A23V2002/00 ,  B01J2219/00051 ,  B01J2219/00094 ,  B01J2219/00132 ,  B01J2219/00144 ,  Y02W10/37 ,  C07C407/00 ,  C07C409/24

摘要： Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.

公开(公告)号：US20180305290A1

公开(公告)日：2018-10-25

申请号：US16021429

申请日：2018-06-28

申请人： Kumiai Chemical Industry Co., Ltd.

发明人： Shinki Tani

IPC分类号： C07C67/313 ,  B01J14/00 ,  C07C67/31 ,  B01J19/18 ,  C07C69/716

CPC分类号： C07C67/313 ,  B01J14/00 ,  B01J19/1818 ,  B01J2219/00033 ,  B01J2219/00051 ,  C07C67/31 ,  C07C69/716

摘要： The purpose of the present invention is to provide a method for continuously producing a ketomalonic acid compound such as a ketomalonic acid diester or a hydrate thereof, which is an industrially useful compound, on an industrial scale and in a safe and steady manner. The present invention relates to: a method in which a malonic acid diester, a carboxylic acid compound and a chlorous acid compound are used as raw material compounds, and these raw material compounds are mixed together to prepare a mixture and the mixture is supplied to a flow reactor continuously, thereby continuously producing a corresponding ketomalonic acid diester or a hydrate thereof; and a continuous production apparatus for performing the method.

公开(公告)号：US09963529B1

公开(公告)日：2018-05-08

申请号：US15491135

申请日：2017-04-19

申请人： NOVA Chemicals (International) S.A.

发明人： Niousha Kazemi ,  Stephen Brown ,  Lawrence VanAsseldonk ,  XiaoChuan Wang ,  Stephen Salomons ,  Yves Lacombe

IPC分类号： C08F210/16 ,  C08F2/06 ,  C08F2/38 ,  B01J19/18 ,  C08F4/642

CPC分类号： C08F210/16 ,  B01J19/1818 ,  B01J19/1825 ,  B01J2219/1941 ,  C08F2/001 ,  C08F10/02 ,  C08F2/01

摘要： This disclosure relates to a continuous solution three reactor polymerization process. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst system are injected into a first and second reactor configured in parallel to one another. A third reactor receives effluent from the first reactor, the second reactor, or a combination of the first and second reactors. Fresh monomer is feed to the third reactor for further polymerization and to give a final polyethylene product.

公开(公告)号：US20170136440A1

公开(公告)日：2017-05-18

申请号：US15318924

申请日：2015-06-15

申请人： BAYER AKTIENGESELLSCHAFT

发明人： Leslaw MLECZKO ,  Sigurd BUCHHOLZ ,  Karl-Robert BOOS ,  Sebastian FALSS

IPC分类号： B01J19/18 ,  B01J19/00

CPC分类号： B01J19/1818 ,  B01J19/0066 ,  B01J19/1862 ,  B01J19/20 ,  B01J2219/0002 ,  B01J2219/00033 ,  B01J2219/0004 ,  B01J2219/00094 ,  B01J2219/00166 ,  B01J2219/00247 ,  B01J2219/185 ,  B01J2219/1943 ,  B01J2219/1946

摘要： A reaction chamber for a chemical reactor comprises a casing (100) of the reaction chamber, a floor (200) of the reaction chamber having an opening (300) located in the floor, an agitator shaft (400) located in the chamber and having at least one agitator element (500), connected thereto, wherein the agitator shaft (400), seen in the longitudinal direction, has a beginning (600) and an end (700). In the opening (300) of the floor (200) a removable sleeve (800) is provided, which projects out of the reaction chamber. The sleeve (800) is arranged in alignment with the axis of rotation of the agitator shaft (400). The internal diameter of the sleeve (800) is greater than the diameter of the agitator shaft (400) and the agitator shaft (400), at the beginning (600) thereof and/or at the end (700) thereof, is adapted to absorb reversibly a torque provided by means of a further shaft and/or to transmit a torque to a further shaft. Using such a reaction chamber, it is possible to build up modular chemical reactors having decreased backmixing.

公开(公告)号：US08946359B2

公开(公告)日：2015-02-03

申请号：US13812693

申请日：2011-07-29

申请人： Daniel Siraux ,  Aurélien Vantomme ,  Eric Damme ,  Daan Dewachter

发明人： Daniel Siraux ,  Aurélien Vantomme ,  Eric Damme ,  Daan Dewachter

IPC分类号： C08F2/00 ,  C08F2/01 ,  B01J4/00 ,  B01J8/00 ,  B01J19/18 ,  C08F210/16

CPC分类号： C08F2/01 ,  B01J4/001 ,  B01J8/007 ,  B01J19/1818 ,  B01J19/1837 ,  C08F210/16 ,  C08F2/005 ,  C08F2/14 ,  C08F210/14

摘要： The present invention relates to a process of preparing a polyolefin in a loop reactor by introducing anti-fouling agent through a sleeve provided around at least part of the shaft of the pump. Also, the invention relates to the use of anti-fouling agent to prevent or reduce fouling by feeding the anti-fouling agent against the impeller of the pump upon introduction to the loop reactor.

摘要翻译： 本发明涉及一种在环管式反应器中制备聚烯烃的方法，该方法是通过在泵的至少一部分周围设置的套筒引入防污剂。 此外，本发明涉及通过在将引入循环反应器之后将防污垢剂施加到泵的叶轮上来防止或减少结垢的用途。

公开(公告)号：US08932527B1

公开(公告)日：2015-01-13

申请号：US14461430

申请日：2014-08-17

申请人： Chevron Phillips Chemical Company, LP

发明人： Scott E. Kufeld ,  Joel A. Mutchler ,  Ralph W. Romig ,  John D Stewart ,  Catherine M Gill ,  Bruce E. Kreischer ,  John D. Hottovy

IPC分类号： B01J19/18 ,  C08F210/00 ,  C08F110/06 ,  B01J19/00 ,  C08F110/02

CPC分类号： C08F2/01 ,  B01J19/0046 ,  B01J19/1806 ,  B01J19/1818 ,  B01J19/1837 ,  B01J19/1862 ,  B01J19/2405 ,  B01J19/2435 ,  B01J19/245 ,  B01J19/2455 ,  B01J2219/00006 ,  B01J2219/00063 ,  B01J2219/00065 ,  B01J2219/00069 ,  B01J2219/00094 ,  B01J2219/00108 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/182 ,  B01J2219/185 ,  B01J2219/24 ,  C08F2/12 ,  C08F110/02 ,  C08F110/06

摘要： Loop reactors for olefin polymerization and processes utilizing such loop reactors are described herein. In one or more embodiments, the loop reactor generally includes a plurality of vertical sections; a plurality of elbow sections connecting the vertical sections to either a horizontal section having a horizontal length (LH) or another elbow section, at least one elbow section having an internal diameter (d), a radius (Rc) of an inner curvature and a chord length (W) and wherein the horizontal length (LH) is from 0 feet to 3 feet, the chord length (W) is 250 inches or less and a ratio (Rc/d) of the radius (Rc) of the inner curvature to the internal diameter (d) of the at least one elbow section is maintained from 2 to 4; and at least one loop reaction zone configured to polymerize an olefin monomer in the presence of a liquid diluent into a slurry comprising particles of a polyolefin polymer.

摘要翻译： 本文描述了用于烯烃聚合的环流反应器和利用这种环流反应器的方法。 在一个或多个实施例中，环路反应器通常包括多个垂直部分; 将垂直部分连接到具有水平长度（LH）或另一肘部的水平部分的多个弯头部分，至少一个具有内径（d）的弯头部分，内部曲率的半径（Rc）和 弦长（W），其中水平长度（LH）为0英尺至3英尺，弦长（W）为250英寸或更小，并且内曲率半径（Rc）的比（Rc / d） 至少一个肘部的内径（d）保持在2至4; 以及至少一个循环反应区，其被配置为在液体稀释剂存在下将烯烃单体聚合成包含聚烯烃聚合物颗粒的浆料。

公开(公告)号：US20140275450A1

公开(公告)日：2014-09-18

申请号：US13795033

申请日：2013-03-12

申请人： Chevron Phillips Chemical Company, LP

发明人： Maruti Bhandarkar ,  Elizabeth A. Benham ,  Rebecca A. Gonzales ,  Scott E. Kufeld ,  Joel A. Mutchler ,  Catherine M. Gill ,  Thanh T. Nguyen ,  Timothy O. Odi

IPC分类号： C08F2/01 ,  B01J19/00

CPC分类号： C08F110/02 ,  B01J19/1818 ,  B01J19/1837 ,  B01J2204/005 ,  C08F210/16 ,  C08F2/001 ,  C08F2/14 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/05 ,  C08F2500/08 ,  C08F2500/26 ,  C08F2500/02 ,  C08F2500/07

摘要： A system and method for producing polyolefin, including a polyolefin reactor system having: a first reactor to produce a first reactor discharge stream having a first polyolefin and a first diluent; and a second reactor to receive at least a portion of the first reactor discharge stream and to produce a second reactor discharge stream having a second polyolefin and a second diluent, wherein the second diluent is different than the first diluent.

公开(公告)号：US08710161B2

公开(公告)日：2014-04-29

申请号：US12280620

申请日：2007-02-21

申请人： Louis Fouarge ,  Eric Duchesne

发明人： Louis Fouarge ,  Eric Duchesne

IPC分类号： C08F2/12 ,  B21K21/16

CPC分类号： C08F2/01 ,  B01J8/007 ,  B01J19/1818 ,  B01J19/1837 ,  B01J2208/00176 ,  B01J2208/00619 ,  B01J2219/00024 ,  B01J2219/00031 ,  B01J2219/00033 ,  B01J2219/0004 ,  B01J2219/00094 ,  B01J2219/00184 ,  B01J2219/00254 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  Y10T29/49716 ,  C08F2/14 ,  C08F210/14 ,  C08F2/001

摘要： The present invention discloses a method for transforming a single reactor line into a double reactor line wherein the existing single reactor line is equipped with a flash tank for separating the solid polymer product from the flash vapor and wherein the vapor is sent to a system of at least two separating columns allowing the separation of its constituents into monomer, diluent and comonomer.

摘要翻译： 本发明公开了一种用于将单个反应器管线转化为双重反应器管线的方法，其中现有的单个反应器管线装备有用于将固体聚合物产物与闪蒸蒸气分离的闪蒸罐，并且其中蒸气被送至系统 最少两个分离柱允许其组分分离成单体，稀释剂和共聚单体。

公开(公告)号：US08252240B2

公开(公告)日：2012-08-28

申请号：US13331855

申请日：2011-12-20

申请人： Hugo Vandaele

发明人： Hugo Vandaele

IPC分类号： B01J19/18 ,  C08F2/00

CPC分类号： B01J19/1818 ,  B01J8/007 ,  B01J19/1837 ,  B01J2219/0004 ,  C08F10/02 ,  C08F2/14 ,  C08F2/01 ,  C08F2/001

摘要： The present invention provides a multiple loop reactor suitable for polymerizing olefins comprising at least two interconnected loop reactors, whereby said connection essentially consists of one or more transfer lines suitable for transferring polymer slurry from a reactor to another reactor and whereby said transfer line extends substantially horizontally. The invention further relates to a process for producing olefin polymers in a multiple loop reactor according to the invention. The invention also relates to the use of a transfer line for transferring polymer slurry from a reactor to another reactor in a multiple loop reactor comprising at least two interconnected loop reactors, whereby said transfer line extends substantially horizontally.

摘要翻译： 本发明提供了适用于聚合包含至少两个相互连接的环管反应器的烯烃的多回路反应器，由此所述连接件基本上由适于将聚合物浆料从反应器转移到另一个反应器的一个或多个输送管线，由此所述输送管线基本上水平地延伸 。 本发明还涉及在根据本发明的多环路反应器中制备烯烃聚合物的方法。 本发明还涉及用于将聚合物浆料从反应器转移到另一个反应器的多回路反应器中的用途，所述多回路反应器包括至少两个互连的环管反应器，由此所述输送管线基本上水平地延伸。

公开(公告)号：US20120101248A1

公开(公告)日：2012-04-26

申请号：US13379168

申请日：2010-06-14

申请人： Kenichiro Matsuba ,  Tsuyoshi Aoki

发明人： Kenichiro Matsuba ,  Tsuyoshi Aoki

IPC分类号： C08G63/08

CPC分类号： C08G63/785 ,  B01J19/0066 ,  B01J19/1818 ,  B01J19/1862 ,  B01J2219/0004 ,  B01J2219/00085 ,  B01J2219/00094 ,  C08G63/08

摘要： PROBLEMThere is provided a method for producing polylactic acid, which is capable of obtaining polylactic acid at low cost, and having high molecular weight.SOLUTIONA method for producing polylactic acid by polymerizing molten lactide using at least one reactor having plug flow characteristics with ξ(τ), calculated from the following FORMULA (1), of 0.3 or smaller: ξ(τ)=∫0∞(E(τ)×ABS(1−τ))dτ  (1) in the Formula (1), E(τ) is a residence time distribution function determined by impulse response by starch syrup having a viscosity of 3 Pa·s, and τ is ratio of elapsed time θ and mean residence time θ0.

摘要翻译： 问题提供了能够以低成本获得聚乳酸并且具有高分子量的聚乳酸的制造方法。 解决方案一种使用至少一个具有从下列公式（1）计算的具有塞子流动特性（x）（τ）的反应器的熔融丙交酯聚合熔融丙交酯的方法：0.3或更小：＆xgr;（τ）=∫0∞ （1）中的（E（τ）×ABS（1-τ））dτ（1），E（τ）是由粘度为3Pa·s的淀粉糖浆的脉冲响应确定的停留时间分布函数， τ是经过时间和长度之比; 和平均停留时间; 0。