公开(公告)号：WO2017091599A1

公开(公告)日：2017-06-01

申请号：PCT/US2016/063383

申请日：2016-11-22

Applicant: CHEME SOLUTIONS PROCESS ENGINEERING, INC.

Inventor： STENSLAND, Geoffrey, Lawrence ,  RAVANDER, David, Robert

IPC: C01B11/02 ,  B01F5/00 ,  B01J19/26

CPC classification number: C01B11/026

Abstract: Systems and methods for producing chlorine dioxide in a single vessel process include a simplified control of sodium sulfate concentration, particularly for small to medium scale chlorine dioxide generators. The benefits of the described systems and methods include high chlorate efficiency, compact design and low sulfuric acid use. In some embodiments, the described systems and methods produce chlorine dioxide and separate the chlorine dioxide for use in the treatment of drinking water. The separated chlorine dioxide for use in the treatment of drinking water has no chlorate of chlorite or levels of chlorate or chlorite that are well below allowed limits. Novel compositions from which to produce chlorine dioxide include mixtures of hydrogen peroxide and a mineral acid and mixtures of an alkali metal chlorate, alkali metal salt and hydrogen peroxide are also described.

Abstract translation: 用于在单一容器工艺中生产二氧化氯的系统和方法包括简化的硫酸钠浓度控制，特别是对于中小型二氧化氯发生器。 所描述的系统和方法的益处包括高氯酸盐效率，紧凑设计和低硫酸使用。 在一些实施方案中，所描述的系统和方法产生二氧化氯并分离二氧化氯用于处理饮用水。 用于处理饮用水的分离二氧化氯不含氯酸盐氯酸盐或氯酸盐或亚氯酸盐含量远低于允许的限度。 用于生产二氧化氯的新组合物包括过氧化氢和无机酸的混合物，还描述了碱金属氯酸盐，碱金属盐和过氧化氢的混合物。

公开(公告)号：WO2012004233A1

公开(公告)日：2012-01-12

申请号：PCT/EP2011/061262

申请日：2011-07-05

Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V. ,  VILHELMSSON, Per Johan Henrik ,  PELIN, Kalle Hans Thomas

Inventor： VILHELMSSON, Per Johan Henrik ,  PELIN, Kalle Hans Thomas

IPC: C01B11/02 ,  B01J19/32

CPC classification number: C01B11/026 ,  B01J19/32

Abstract: The invention relates to a continuous process for the production of chlorine dioxide comprising: -feeding chlorate ions, hydrogen peroxide and an acid into a reactor comprising packing elements inside; -reacting said chlorate ions, hydrogen peroxide and acid in said reactor to form a product stream comprising chlorine dioxide; and, -withdrawing said product stream from said reactor.

Abstract translation: 本发明涉及生产二氧化氯的连续方法，包括：将氯酸根离子，过氧化氢和酸进料到包含内部的填料元素的反应器中; 在所述反应器中反应所述氯酸根离子，过氧化氢和酸，以形成包含二氧化氯的产物流; 并且从所述反应器中抽出所述产物流。

公开(公告)号：WO2008085122A1

公开(公告)日：2008-07-17

申请号：PCT/SE2008/050005

申请日：2008-01-03

Applicant: AKZO NOBEL N.V. ,  PELIN, Kalle ,  PERSSON, Fredrik ,  STOLTZ, Erika

Inventor： PELIN, Kalle ,  PERSSON, Fredrik ,  STOLTZ, Erika

IPC: C01B11/02

CPC classification number: C01B11/026 ,  C01B11/028

Abstract: The invention concerns a process for the production of chlorine dioxide comprising formation of chlorine dioxide in a reaction medium in at least one reaction vessel and withdrawing chlorine dioxide from said at least one reaction vessel, the process further comprising a step of treatingreaction medium orat least one process stream originating directly or indirectly from said at least one reaction vessel with an adsorbent efficient for removing chlorinated organic compounds from said at least oneprocess stream.

Abstract translation: 本发明涉及一种生产二氧化氯的方法，包括在至少一个反应容器中的反应介质中形成二氧化氯并从所述至少一个反应容器中排出二氧化氯，该方法还包括处理反应介质或至少一个 从所述至少一个反应容器直接或间接产生的具有吸附剂的工艺流，所述吸附剂有效地从所述至少一个过程流中除去氯化有机化合物。

公开(公告)号：WO2004078648A1

公开(公告)日：2004-09-16

申请号：PCT/SE2004/000282

申请日：2004-03-02

Applicant: AKZO NOBEL N.V. ,  EKA CHEMICALS AB ,  WOODRUFF, Thomas ,  JEFFERSON, James

Inventor： WOODRUFF, Thomas ,  JEFFERSON, James

IPC: C01B11/02

CPC classification number: B01J4/002 ,  B01F5/0256 ,  B01F5/0415 ,  B01F5/043 ,  B01J4/001 ,  B01J19/2415 ,  C01B11/026

Abstract: The invention relates to a process for continuously producing chlorine dioxide comprising the steps of: diluting sulfuric acid of an initial concentration exceeding about 90 wt % with water; bringing the diluted sulfuric acid to a temperature below about 100 °C; feeding to a reactor the diluted sulfuric acid having a temperature below about 100 °C through a first feeding nozzle; feeding to said reactor (5) an aqueous solution comprising alkali metal chlorate and hydrogen peroxide through a second feeding nozzle, wherein said first and second feeding nozzles (1, 2) are opposite to and directed against each other; reacting the alkali metal chlorate with the mineral acid and the hydrogen peroxide to form a product stream containing chlorine dioxide; and, withdrawing the product stream from the reactor. The invention further relates to an apparatus for producing chlorine dioxide.

Abstract translation: 本发明涉及连续生产二氧化氯的方法，包括以下步骤：用水稀释初始浓度超过约90wt％的硫酸; 使稀硫酸温度低于约100℃; 通过第一进料喷嘴向温度低于约100℃的反应器中加入稀硫酸; 通过第二进料喷嘴向所述反应器（5）向所述反应器（5）供给包含碱金属氯酸盐和过氧化氢的水溶液，其中所述第一和第二进料喷嘴（1,2）彼此相对并指向; 使碱金属氯酸盐与无机酸和过氧化氢反应形成含有二氧化氯的产物流; 并从反应器中取出产物流。 本发明还涉及一种用于生产二氧化氯的设备。

公开(公告)号：WO02053277A1

公开(公告)日：2002-07-11

申请号：PCT/FR2001/004158

申请日：2001-12-21

IPC: B01J14/00 ,  B01J19/00 ,  B01J19/24 ,  C01B7/01 ,  C01B11/02 ,  C01B13/02

CPC classification number: C01B11/026 ,  B01J14/00 ,  B01J19/0053 ,  B01J19/2465 ,  B01J2219/0011 ,  B01J2219/00164 ,  B01J2219/1946 ,  C01B13/0211 ,  C01B13/0214

Abstract: The invention concerns a device for carrying out a reaction in liquid medium during which there is gas evolution. The inventive device comprises at least: a static mixer (3) wherein emerges at least a pipe (1) supplying liquid medium; a cyclone reactor (4) connected to said static mixer (3) and provided with a vent (5) for evacuating the gas or gases formed and means for evacuating (6, 7) the liquid medium. The invention also concerns a method whereby a reaction is carried out in liquid medium during which there is gas evolution. The invention can be used particularly for a reaction involving a peroxide such as hydrogen peroxide and, in particular, for reducing chlorine contained in a liquid effluent.

Abstract translation: 本发明涉及一种用于在液体介质中进行反应的装置，在该介质中有气体逸出。 本发明的装置至少包括：静态混合器（3），其中至少出现供应液体介质的管道（1）; 连接到所述静态混合器（3）并且设置有用于抽空形成的气体或气体的排气口（5）的旋风反应器（4）和用于抽空（6,7）液体介质的装置。 本发明还涉及一种在液体介质中进行反应的方法，在该介质中有气体逸出。 本发明可以特别用于涉及过氧化物如过氧化氢的反应，特别是用于还原液体流出物中所含的氯。

公开(公告)号：WO2006062455A1

公开(公告)日：2006-06-15

申请号：PCT/SE2005/001693

申请日：2005-11-10

Applicant: AKZO NOBEL N.V. ,  EKA CHEMICALS AB ,  SIMIC, Nina ,  PELIN, Kalle

Inventor： SIMIC, Nina ,  PELIN, Kalle

IPC: C01B11/02 ,  C01D5/02

CPC classification number: B01J3/006 ,  B01J19/2465 ,  C01B11/026 ,  C01D5/02

Abstract: The invention relates to a process for the production of chlorine dioxide in an apparatus comprising a reaction vessel holding a reaction medium and a circulation conduit leading through a heater for the reaction medium, said process comprising the steps of continuously: a) maintaining the reaction medium at subatmospheric pressure and a temperature sufficient for evaporating water; b) circulating reaction medium through the circulation conduit and the heater; c) reacting alkali metal chlorate, sulfuric acid and hydrogen peroxide in the reaction medium to form chlorine dioxide, oxygen and alkali metal sulfate; d) feeding alkali metal chlorate, sulfuric acid and hydrogen peroxide to the reaction medium, wherein the sulfuric acid is fed through an inlet into the circulation conduit and the hydrogen peroxide is fed through an inlet directly into the reaction vessel or through an inlet into the circulation conduit down-streams the inlet for sulfuric acid at a distance in the flow direction therefrom of at least about the inner diameter of the circulation conduit; and, e) withdrawing a gas comprising chlorine dioxide, oxygen and evaporated water. The invention further relates to an apparatus for the production of chlorine dioxide.

Abstract translation: 本发明涉及一种在包括保持反应介质的反应容器和引导通过用于反应介质的加热器的循环管道的装置中的二氧化氯生产方法，所述方法包括以下步骤：a）保持反应介质 在低于大气压的压力和足以蒸发水的温度; b）通过循环管道和加热器循环反应介质; c）在反应介质中使碱金属氯酸盐，硫酸和过氧化氢反应形成二氧化氯，氧和碱金属硫酸盐; d）向反应介质中加入碱金属氯酸盐，硫酸和过氧化氢，其中硫酸通过入口进料到循环管道中，并且过氧化氢通过入口直接进入反应容器或通过入口进入 循环管道向下流入硫酸入口至少在循环管道的内径上; e）取出包含二氧化氯，氧气和蒸发水的气体。 本发明还涉及二氧化氯生产装置。

公开(公告)号：WO2005007281A1

公开(公告)日：2005-01-27

申请号：PCT/US2004/022560

申请日：2004-07-09

Applicant: E.I. DUPONT DE NEMOURS AND COMPANY ,  NOWOSIELSKI-SLEPOWRON, Marek, Stefan ,  KRAFTON, Brian, David

Inventor： NOWOSIELSKI-SLEPOWRON, Marek, Stefan ,  KRAFTON, Brian, David

IPC: B01F15/04

CPC classification number: C01B11/026 ,  A01K7/02 ,  B01F3/08 ,  B01F15/005 ,  B01F15/0416 ,  C01B11/024 ,  C01B11/08 ,  C01B11/10 ,  C02F1/66 ,  C02F1/685 ,  C02F1/76 ,  C02F2103/026 ,  C02F2209/40

Abstract: An apparatus that can be used for producing chlorine dioxide is provided. The apparatus comprises a single fluid proportioning device (20), which comprises three or more fluid transferring devices, a conduit to the inlet (21, 22, 23) of each fluid transferring device, a conduit to the outlet (31, 32, 33) of each fluid transferring device, a water inlet (11) to the device, and a water outlet (12) from the device in which the fluid transferring device is proportionally actuated by the flow of water through the device. Also provided is a process that can be used to produce chlorine dioxide. The process comprises flowing water through the fluid proportioning device to create a downstream water and to actuate the fluid transferring devices; drawing three or more precursor chemicals each from a separate source and flowing each chemical separately through one of the fluid transferring devices; and injecting the precursor chemicals into the downstream water.

Abstract translation: 提供了可用于生产二氧化氯的装置。 该装置包括单个流体分配装置（20），其包括三个或更多个流体输送装置，每个流体输送装置的入口（21,22,23）的导管，到出口（31,32,33）的导管 ），来自装置的进水口（11）和来自装置的出水口（12），其中流体转移装置由水流通过该装置成比例地致动。 还提供了可用于生产二氧化氯的方法。 该过程包括使水流过流体分配装置以产生下游水并致动流体转移装置; 从单独的源抽出三种或更多种前体化学品，并且通过其中一种流体转移装置分别流出每种化学物质; 并将前体化学品注入下游水中。

公开(公告)号：WO03011752A8

公开(公告)日：2004-05-13

申请号：PCT/SE0201409

申请日：2002-07-24

Applicant: AKZO NOBEL NV ,  EKA CHEMICALS AB

Inventor： WILCOX DEBRA ,  SIVERSTROEM MIKAEL ,  JADESJOE GUNILLA

IPC: C01B11/02 ,  C01B15/037

CPC classification number: C01B15/037 ,  C01B11/026

Abstract: The invention relates to an aqueous composition of, up to about 90 wt%, hydrogen peroxide, comprising from about 0.05 to about 20 mmol/kg H2O2 of amino tri(methylenephosphonic acid), or salts or degradation products thereof, and a corrosion inhibitor, being either substantially free from or containing less than about 0.1 mole/l chlorate ions, having a tin content from 0 to about 100 mg/kg H2O2, and having a chloride content less than about 10 mg Cl-/kg H2O2. The invention also relates to a process for producing chlorine dioxide where said composition is used as a feed.

Abstract translation: 本发明涉及至多约90重量％的过氧化氢的水性组合物，其包含约0.05至约20mmol / kg的H 2 O 2氨基三（亚甲基膦酸）或其盐或降解产物，以及缓蚀剂， 基本上不含或含有少于约0.1摩尔/升的氯酸根离子，锡含量为0至约100mg / kg H 2 O 2，并且氯含量低于约10毫克Cl- / kgH 2 O 2。 本发明还涉及一种生产二氧化氯的方法，其中所述组合物用作饲料。

公开(公告)号：WO00076916A1

公开(公告)日：2000-12-21

申请号：PCT/SE2000/000903

申请日：2000-05-05

IPC: C01B11/02 ,  D21C9/14

CPC classification number: C01B11/026

Abstract: The invention relates to a novel composition useful as a feed at production of chlorine dioxide, said composition being an aqueous solution comprising from about 1 to about 6.5 moles/litre of alkali metal chlorate, from about 1 to about 7 moles/litre of hydrogen peroxide and at least one of a protective colloid, a radical scavenger or a phosphonic acid based complexing agent, wherein the pH of the aqueous solution is from about 1 to about 4. The invention also concerns a process for producing chlorine dioxide using the novel composition.

Abstract translation: 本发明涉及可用作二氧化氯生产中的饲料的新型组合物，所述组合物为包含约1至约6.5摩尔/升碱金属氯酸盐，约1至约7摩尔/升过氧化氢 和保护胶体，自由基清除剂或膦酸基络合剂中的至少一种，其中水溶液的pH为约1至约4.本发明还涉及使用该新型组合物生产二氧化氯的方法。

公开(公告)号：WO1995001466A1

公开(公告)日：1995-01-12

申请号：PCT/SE1994000651

申请日：1994-06-30

Applicant: EKA NOBEL AB

Inventor： EKA NOBEL AB ,  FALGEN, Helena ,  SUNDSTRÖM, Göran ,  LANDFORS, Johan

IPC: C25B01/16

CPC classification number: C01B11/026

Abstract: The invention relates to a method of producing an acidified aqueous solution containing alkali metal sulfate and chlorate comprising the steps of introducing and aqueous solution containing alkali metal sulfate and chlorate into an electrochemical cell and electrochemically increasing the acidity of said aqueous solution, wherein the current efficiency of the cell is maintained below 70%. The invention also relates to a method of producing chlorine dioxide comprising the steps: providing a reactor with an aqueous acidic reaction medium containing alkali metal chlorate and sulfate; reducing chlorate ions in said reaction medium to form chlorine dioxide; withdrawing chlorine dioxide gas from the reaction medium; withdrawing reaction medium from the reactor and transferring it to an electrochemical cell substantially without crystallization of sulfate or chlorate; electrochemically acidifying said reaction medium to increase the acidity and to decrease the content of alkali metal ions; recycling acidified reaction medium to the reactor; adding make up alkali metal chlorate to the reaction medium before or after the electrochemical cell; wherein the current efficiency of the electrochemical cell is maintained below about 80 %.

Abstract translation: 本发明涉及一种生产含有碱金属硫酸盐和氯酸盐的酸化水溶液的方法，包括将含有碱金属硫酸盐和氯酸盐的水溶液引入电化学电池并电化学提高所述水溶液的酸度的步骤，其中电流效率 的细胞维持在70％以下。 本发明还涉及一种生产二氧化氯的方法，包括以下步骤：向反应器提供含碱金属氯酸盐和硫酸盐的酸性反应介质水溶液; 还原所述反应介质中的氯酸根离子形成二氧化氯; 从反应介质中取出二氧化氯气体; 从反应器中取出反应介质并将其转移到基本上不结晶硫酸盐或氯酸盐的电化学电池; 电化学酸化所述反应介质以增加酸度并降低碱金属离子的含量; 将酸化反应介质回收到反应器中; 在电化学电池前后，向反应介质中加入碱金属氯酸盐; 其中电化学电池的电流效率保持低于约80％。