WO2018099243A3 - Nox abatement method for precious metal refinery and recycling processes - Google Patents

Nox abatement method for precious metal refinery and recycling processes Download PDF

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Publication number
WO2018099243A3
WO2018099243A3 PCT/CN2017/109342 CN2017109342W WO2018099243A3 WO 2018099243 A3 WO2018099243 A3 WO 2018099243A3 CN 2017109342 W CN2017109342 W CN 2017109342W WO 2018099243 A3 WO2018099243 A3 WO 2018099243A3
Authority
WO
WIPO (PCT)
Prior art keywords
precious metal
recycling processes
nox abatement
abatement method
metal refinery
Prior art date
Application number
PCT/CN2017/109342
Other languages
French (fr)
Other versions
WO2018099243A2 (en
Inventor
Christian Nowottny
Zhenggang YU
Wengang Li
Original Assignee
Heraeus Precious Metal Technology (China) Co., Ltd.
Heraeus Site Operations Gmbh & Co. Kg
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 Heraeus Precious Metal Technology (China) Co., Ltd., Heraeus Site Operations Gmbh & Co. Kg filed Critical Heraeus Precious Metal Technology (China) Co., Ltd.
Priority to PCT/CN2017/109342 priority Critical patent/WO2018099243A2/en
Publication of WO2018099243A2 publication Critical patent/WO2018099243A2/en
Priority to PCT/CN2018/098923 priority patent/WO2019085569A1/en
Priority to CN201880071144.2A priority patent/CN111295238B/en
Publication of WO2018099243A3 publication Critical patent/WO2018099243A3/en

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Classifications

    • 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
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/025—Other waste gases from metallurgy plants

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

A process for NOx removal wherein an aqueous liquid, at least one gaseous and/or at least one liquid oxidant, and a NOx-containing off-gas are fed into a venturi mixing unit (1), thereby obtaining a turbulent aqueous reaction zone in the venturi mixing unit (1), and a HNO3-enriched aqueous liquid leaves the venturi mixing unit (1).
PCT/CN2017/109342 2017-11-03 2017-11-03 Nox abatement method for precious metal refinery and recycling processes WO2018099243A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2017/109342 WO2018099243A2 (en) 2017-11-03 2017-11-03 Nox abatement method for precious metal refinery and recycling processes
PCT/CN2018/098923 WO2019085569A1 (en) 2017-11-03 2018-08-06 NOx ABATEMENT METHOD FOR PRECIOUS METAL REFINERY AND RECYCLING PROCESSES
CN201880071144.2A CN111295238B (en) 2017-11-03 2018-08-06 NOx abatement method for precious metal refining and recycling processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/109342 WO2018099243A2 (en) 2017-11-03 2017-11-03 Nox abatement method for precious metal refinery and recycling processes

Publications (2)

Publication Number Publication Date
WO2018099243A2 WO2018099243A2 (en) 2018-06-07
WO2018099243A3 true WO2018099243A3 (en) 2018-08-16

Family

ID=62241370

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2017/109342 WO2018099243A2 (en) 2017-11-03 2017-11-03 Nox abatement method for precious metal refinery and recycling processes
PCT/CN2018/098923 WO2019085569A1 (en) 2017-11-03 2018-08-06 NOx ABATEMENT METHOD FOR PRECIOUS METAL REFINERY AND RECYCLING PROCESSES

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/098923 WO2019085569A1 (en) 2017-11-03 2018-08-06 NOx ABATEMENT METHOD FOR PRECIOUS METAL REFINERY AND RECYCLING PROCESSES

Country Status (2)

Country Link
CN (1) CN111295238B (en)
WO (2) WO2018099243A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099243A2 (en) * 2017-11-03 2018-06-07 Heraeus Precious Metal Technology (China) Co., Ltd. Nox abatement method for precious metal refinery and recycling processes
EP3533511A1 (en) * 2018-02-28 2019-09-04 Xpuris GmbH An exhaust gas treatment method and system arranged for treating exhaust gases collected from at least one foundry process
CN109395586B (en) * 2018-12-13 2024-01-16 大连海事大学 Device for removing nitrogen oxides in ship tail gas by hydrodynamic cavitation reinforced chlorine dioxide

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957512A (en) * 1989-08-25 1990-09-18 Denisov Vladimir F Method of cleaning gas from solid and gaseous matter and apparatus materializing same
CN1070984A (en) * 1992-11-11 1993-04-14 申进忠 Ozone-catalyst method automobile tail gas purifier and purification craft thereof
CN102463015A (en) * 2010-11-11 2012-05-23 南亮压力容器技术(上海)有限公司 Desulfurization and denitrification method and treatment device for marine exhaust gas
CN103209755A (en) * 2011-10-12 2013-07-17 熊靓 Process and equipment for eliminating oxynitride, oxysulfide and mercury from exhaust gas through oxidization
CN106268127A (en) * 2016-08-12 2017-01-04 攀钢集团西昌钢钒有限公司 V2o5reduction kiln reduction exhaust gas recovery system and recovery process
CN206508773U (en) * 2017-01-05 2017-09-22 杭州瑞目特科技有限公司 Emission-control equipment containing nitric oxide

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835622A (en) * 1973-04-27 1974-09-17 Phillips Petroleum Co Removal of nitrogen oxides from carbon black pellet dryer purge gas
CN1034988C (en) * 1992-02-14 1997-05-28 殷斌友 Process and apparatus for treatment of nitric acid tail gas by ammonified ammonium nitrate absorption
JP2002316016A (en) * 2001-04-23 2002-10-29 Regal Joint Co Ltd Deodorizing system
WO2005014134A2 (en) * 2003-07-09 2005-02-17 Belco Technologies Corporation WET SCRUBBING APPARATUS AND METHOD FOR CONTROLLING NOx EMISSIONS
CN101259369A (en) * 2008-04-29 2008-09-10 北京中科创丰科技有限公司 Flue gas desulfurization denitration dust removing integrated technique
CN101927126B (en) * 2010-01-07 2012-07-25 高飞 Method for carrying out uncatalyzed direct oxidation treatment on gas containing nitric oxide by using Venturi oxidizer
DE202013105968U1 (en) * 2013-12-30 2014-03-27 Wuxi Huahong Information Technology Co., Ltd. Flue gas treatment tower, in particular flue gas deacidification tower with atomization
CN206253000U (en) * 2016-10-28 2017-06-16 无锡市华星电力环保修造有限公司 A kind of CFB absorption towers integration desulfurization denitration smoke processing system
WO2018099243A2 (en) * 2017-11-03 2018-06-07 Heraeus Precious Metal Technology (China) Co., Ltd. Nox abatement method for precious metal refinery and recycling processes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957512A (en) * 1989-08-25 1990-09-18 Denisov Vladimir F Method of cleaning gas from solid and gaseous matter and apparatus materializing same
CN1070984A (en) * 1992-11-11 1993-04-14 申进忠 Ozone-catalyst method automobile tail gas purifier and purification craft thereof
CN102463015A (en) * 2010-11-11 2012-05-23 南亮压力容器技术(上海)有限公司 Desulfurization and denitrification method and treatment device for marine exhaust gas
CN103209755A (en) * 2011-10-12 2013-07-17 熊靓 Process and equipment for eliminating oxynitride, oxysulfide and mercury from exhaust gas through oxidization
CN106268127A (en) * 2016-08-12 2017-01-04 攀钢集团西昌钢钒有限公司 V2o5reduction kiln reduction exhaust gas recovery system and recovery process
CN206508773U (en) * 2017-01-05 2017-09-22 杭州瑞目特科技有限公司 Emission-control equipment containing nitric oxide

Also Published As

Publication number Publication date
WO2018099243A2 (en) 2018-06-07
WO2019085569A1 (en) 2019-05-09
CN111295238B (en) 2022-05-10
CN111295238A (en) 2020-06-16

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