DE68913641T2 - Regenerierung von chelierten polyvalenten Metall-Lösungen durch kontrollierte Potential-Elektrolyse. - Google Patents

Regenerierung von chelierten polyvalenten Metall-Lösungen durch kontrollierte Potential-Elektrolyse.

Info

Publication number
DE68913641T2
DE68913641T2 DE68913641T DE68913641T DE68913641T2 DE 68913641 T2 DE68913641 T2 DE 68913641T2 DE 68913641 T DE68913641 T DE 68913641T DE 68913641 T DE68913641 T DE 68913641T DE 68913641 T2 DE68913641 T2 DE 68913641T2
Authority
DE
Germany
Prior art keywords
regeneration
polyvalent metal
controlled potential
potential electrolysis
metal solutions
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE68913641T
Other languages
English (en)
Other versions
DE68913641D1 (de
Inventor
John M Mcintyre
Bruce R Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22947822&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68913641(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of DE68913641D1 publication Critical patent/DE68913641D1/de
Publication of DE68913641T2 publication Critical patent/DE68913641T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1425—Regeneration of liquid absorbents
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Industrial Gases (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
DE68913641T 1988-09-28 1989-09-27 Regenerierung von chelierten polyvalenten Metall-Lösungen durch kontrollierte Potential-Elektrolyse. Expired - Lifetime DE68913641T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/250,454 US4832937A (en) 1988-09-28 1988-09-28 Regeneration of chelated polyvalent metal solutions by controlled potential electrolysis

Publications (2)

Publication Number Publication Date
DE68913641D1 DE68913641D1 (de) 1994-04-14
DE68913641T2 true DE68913641T2 (de) 1994-06-09

Family

ID=22947822

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68913641T Expired - Lifetime DE68913641T2 (de) 1988-09-28 1989-09-27 Regenerierung von chelierten polyvalenten Metall-Lösungen durch kontrollierte Potential-Elektrolyse.

Country Status (11)

Country Link
US (1) US4832937A (de)
EP (1) EP0361895B1 (de)
JP (1) JPH02169009A (de)
CN (1) CN1041575A (de)
AU (1) AU622707B2 (de)
BR (1) BR8904972A (de)
DE (1) DE68913641T2 (de)
DK (1) DK476189A (de)
MX (1) MX173771B (de)
NO (1) NO893840L (de)
ZA (1) ZA897401B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003825A1 (en) * 1991-08-13 1993-03-04 The Dow Chemical Company A composition and method for simultaneous absorption of sulfur dioxide and nitric oxide
US5411149A (en) * 1992-08-11 1995-05-02 Arch Development Corporation Aqueous biphasic extraction process with pH and particle control
US5648054A (en) * 1995-01-31 1997-07-15 Gas Research Institute Double loop liquid-liquid H2 S removal process
US8647497B2 (en) * 2008-01-25 2014-02-11 University Of Central Florida Research Foundation, Inc. Method and system for hydrogen sulfide removal
CN102092067A (zh) * 2011-01-13 2011-06-15 中国文化遗产研究院 一种脱除海洋出水木质文物中硫铁化合物的方法
CN103537176B (zh) * 2013-10-25 2015-06-03 中国石油化工股份有限公司 克劳斯塔尾气配合吸收液电化学循环再生方法与装置
CN104327115B (zh) * 2014-07-08 2016-08-24 重庆紫光化工股份有限公司 一种高纯度草铵膦的节能清洁生产方法
CN109603487B (zh) * 2019-01-28 2021-09-21 烟台新瑞环保科技有限公司 一种液相氧化脱硫工艺中螯合铁催化剂的稳定剂及包含其的脱硫剂
CN111996541B (zh) * 2019-05-27 2022-01-04 中国石油天然气股份有限公司 提高氢气产率的间接硫化氢电解方法和装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436714A (en) * 1982-09-30 1984-03-13 Shell Oil Company Method of removing hydrogen sulfide from gases utilizing a polyvalent metal chelate of nitrilotriacetic acid and electrolytically regenerating the solution
US4443424A (en) * 1982-09-30 1984-04-17 Shell Oil Company Method of removing hydrogen sulfide from gases utilizing a polyvalent metal chelate solution and electrolytically regenerating the solution
US4443423A (en) * 1982-09-30 1984-04-17 Shell Oil Company Method of removing hydrogen sulfide from gases utilizing a polyvalent metal chelate solution and electrolytically regenerating the solution
US4436712A (en) * 1982-09-30 1984-03-13 Shell Oil Company Method of removing hydrogen sulfide from gases utilizing a polyvalent metal chelate of nitrilotriacetic acid and electrolytically regenerating the solution
WO1986004260A1 (en) * 1985-01-24 1986-07-31 Hoelter Heinz Process for scrubbing raw gases laden with sulphur oxides and nitrogen oxides
US4643886A (en) * 1985-12-06 1987-02-17 The Dow Chemical Company Automatic pH control in a process for removal of hydrogen sulfide from a gas

Also Published As

Publication number Publication date
NO893840D0 (no) 1989-09-27
MX173771B (es) 1994-03-28
DK476189A (da) 1990-03-29
AU622707B2 (en) 1992-04-16
EP0361895A2 (de) 1990-04-04
JPH02169009A (ja) 1990-06-29
BR8904972A (pt) 1990-05-08
EP0361895B1 (de) 1994-03-09
EP0361895A3 (de) 1991-01-02
ZA897401B (en) 1991-05-29
AU4234689A (en) 1990-04-05
DK476189D0 (da) 1989-09-27
CN1041575A (zh) 1990-04-25
US4832937A (en) 1989-05-23
DE68913641D1 (de) 1994-04-14
NO893840L (no) 1990-03-29

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee