WO2018026260A9 - System and method for recovering sodium hypochlorite from exhaust chlorine gas - Google Patents

System and method for recovering sodium hypochlorite from exhaust chlorine gas Download PDF

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Publication number
WO2018026260A9
WO2018026260A9 PCT/MY2016/000064 MY2016000064W WO2018026260A9 WO 2018026260 A9 WO2018026260 A9 WO 2018026260A9 MY 2016000064 W MY2016000064 W MY 2016000064W WO 2018026260 A9 WO2018026260 A9 WO 2018026260A9
Authority
WO
WIPO (PCT)
Prior art keywords
sodium hypochlorite
chlorine gas
present
exhaust
recovering sodium
Prior art date
Application number
PCT/MY2016/000064
Other languages
French (fr)
Other versions
WO2018026260A1 (en
Inventor
Chew Kong CHENG
Original Assignee
Cheng Chew Kong
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cheng Chew Kong filed Critical Cheng Chew Kong
Priority to CN201680088132.1A priority Critical patent/CN109562935A/en
Publication of WO2018026260A1 publication Critical patent/WO2018026260A1/en
Publication of WO2018026260A9 publication Critical patent/WO2018026260A9/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/04—Hypochlorous acid
    • C01B11/06—Hypochlorites
    • C01B11/062—Hypochlorites of alkali metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/346—Controlling the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/202—Single element halogens
    • B01D2257/2025—Chlorine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention relates to a system and method for recovering sodium hypochlorite from exhaust chlorine gas. By using the system and method of the present invention harmful chlorine gas exhausted, can be recovered as useful sodium hypochlorite solution for further use without discharging the gas to atmosphere. One of the advantages of the present invention is that it eliminates exhaust chlorine gas as scrubbing waste discharge and without a need for cost required for setting up a waste water treatment system. Instead, it recovers sodium hypochlorite solution which is very useful and of high demand in the market. One skilled in the art will also appreciate that the final product produced from the system of the present invention can be used for performing numerous applications.
PCT/MY2016/000064 2016-08-05 2016-10-17 System and method for recovering sodium hypochlorite from exhaust chlorine gas WO2018026260A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680088132.1A CN109562935A (en) 2016-08-05 2016-10-17 The system and method for sodium hypochlorite are recycled from chlorine exhaust gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2016001444 2016-08-05
MYPI2016001444A MY174824A (en) 2016-08-05 2016-08-05 System and method for recovering sodium hypochlorite from exhaust chlorine gas

Publications (2)

Publication Number Publication Date
WO2018026260A1 WO2018026260A1 (en) 2018-02-08
WO2018026260A9 true WO2018026260A9 (en) 2018-03-08

Family

ID=57681706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2016/000064 WO2018026260A1 (en) 2016-08-05 2016-10-17 System and method for recovering sodium hypochlorite from exhaust chlorine gas

Country Status (3)

Country Link
CN (1) CN109562935A (en)
MY (1) MY174824A (en)
WO (1) WO2018026260A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108479356B (en) * 2018-05-25 2023-10-20 湖北兴发化工集团股份有限公司 Tail gas acid washing system and tail gas acid washing process in gas phase method nanometer powder preparation
US11266950B2 (en) 2018-06-28 2022-03-08 Chemtreat, Inc. Methods and compositions for scrubbing chlorine-containing gases
IT201900002227A1 (en) * 2019-02-15 2020-08-15 Michele Volpe DEVICE AND PROCESS FOR THE PURIFICATION OF EXHAUST GAS
CN110180295B (en) * 2019-07-05 2023-06-27 郑州机械研究所有限公司 Smoke purification method and device thereof
CN110255504A (en) * 2019-07-10 2019-09-20 杭州中昊科技有限公司 The system and technique of tower continuity method production sodium hypochlorite
CN111732081B (en) * 2020-05-19 2023-07-14 湖北宜化化工股份有限公司 Device and method for industrially and continuously producing sodium hypochlorite
CN111792625B (en) * 2020-08-26 2023-04-28 河北泽世康环保科技有限公司 Method for producing sodium hypochlorite
CN112680256B (en) * 2020-12-14 2022-06-14 长春东狮科技(集团)有限责任公司 Device and method for wet dechlorination and desulfurization of blast furnace gas
CN113491938A (en) * 2021-08-03 2021-10-12 安徽康菲尔检测科技有限公司 Treatment device for chlorine-containing organic waste gas and using method thereof
CN115784163B (en) * 2022-12-09 2024-01-30 攀枝花钢企欣宇化工有限公司 Terminal judgment method for sodium hypochlorite production by caustic soda chlorination process

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB984378A (en) * 1962-10-24 1965-02-24 Murgatroyds Salt & Chem Improvements in or relating to sodium hypochlorite production
US3445182A (en) * 1965-02-15 1969-05-20 Universal Oil Prod Co Method for removing chlorine and entrained aluminum chloride particles from a waste gas stream
FR2461973A1 (en) * 1979-07-16 1981-02-06 Solvay PROCESS AND PLANT FOR THE PRODUCTION OF AQUEOUS ALKALINE METAL HYPOCHLORITE SOLUTIONS
JPS5645749A (en) 1979-09-20 1981-04-25 Sando Iron Works Co Ltd Recovery and treatment equipment for chlorine dioxide gas
DE4117382A1 (en) * 1991-05-28 1992-12-03 Metallgesellschaft Ag METHOD FOR REGULATING THE PH VALUE OF AN ACID WASHING LIQUID
US20050169832A1 (en) * 2004-02-02 2005-08-04 Powell Technologies Llc Concurrent packed tower manufacture of hypochlorite
FR2884440B1 (en) * 2005-04-14 2007-07-27 Framatome Anp Sas METHOD FOR WASHING A GAS STREAM CONTAINING CHLORINE, DEVICE FOR CARRYING OUT SAID METHOD, AND USE OF THE METHOD
CN101519189A (en) * 2009-04-08 2009-09-02 中国科学院青海盐湖研究所 Method and device for preparing basic magnesium hypochlorite by using waste chlorine
CN102604676A (en) * 2012-01-12 2012-07-25 昊华宇航化工有限责任公司 Sodium hypochlorite waste liquor reclaiming process

Also Published As

Publication number Publication date
CN109562935A (en) 2019-04-02
WO2018026260A1 (en) 2018-02-08
MY174824A (en) 2020-05-18

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