MX173771B - Regeneracion de soluciones de metal polivalente quelatados mediante electrolisis de potencial controlado - Google Patents

Regeneracion de soluciones de metal polivalente quelatados mediante electrolisis de potencial controlado

Info

Publication number
MX173771B
MX173771B MX017724A MX1772489A MX173771B MX 173771 B MX173771 B MX 173771B MX 017724 A MX017724 A MX 017724A MX 1772489 A MX1772489 A MX 1772489A MX 173771 B MX173771 B MX 173771B
Authority
MX
Mexico
Prior art keywords
polyvalent metal
metal chelate
chelate
regeneration
anode
Prior art date
Application number
MX017724A
Other languages
English (en)
Inventor
John M Mcintyre
Bruce R Smith
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=MX173771(B) "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
Publication of MX173771B publication Critical patent/MX173771B/es

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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Industrial Gases (AREA)

Abstract

La presente invención se refiere a un proceso para combertir cuando menos un quelato de metal polivalente, de menor estado, de valencia, a un quelato de metal polivalente en el cual el metal está en un estado de valencia superior caracterizado porque comprende:(a) introducir una solución alcalina acuosa de dicho quelato de metal polivalente de menor estado de valencia a un pH controlado, en un compartimiento de anodo de una celda el electroquímica, teniendo la celda de ánodo poroso que tiene una elevada área de superficie y una membrana permaselectiva que separa el compartimiento de ánodo del compartimiento de cátodo; y (b) oxidar electroquímicamente el quelato de metal polivalente, de menor estado de valencia, a un quelato de metal polivalente de mayor estado de valencia, manteniendo el potencial ánodo de la celda por encima de oxidación del quelato de metal polivalente, pero por debajo del potencial de oxidación de la porción de quelato del quelato de metal polivalente.
MX017724A 1988-09-28 1989-09-27 Regeneracion de soluciones de metal polivalente quelatados mediante electrolisis de potencial controlado MX173771B (es)

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 (1)

Publication Number Publication Date
MX173771B true MX173771B (es) 1994-03-28

Family

ID=22947822

Family Applications (1)

Application Number Title Priority Date Filing Date
MX017724A MX173771B (es) 1988-09-28 1989-09-27 Regeneracion de soluciones de metal polivalente quelatados mediante electrolisis de potencial controlado

Country Status (11)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2093901A1 (en) * 1991-08-13 1993-02-14 Dane Chang 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
CN104262394B (zh) * 2014-07-08 2016-08-24 重庆紫光化工股份有限公司 一种双甘膦制备草甘膦的环保清洁生产方法及装置
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
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
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
EP0210238A1 (de) * 1985-01-24 1987-02-04 Hölter, Heinz, Dipl.-Ing. Verfahren zum reinigen von mit schwefel- und stickoxiden beladenen rohgasen
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
DE68913641T2 (de) 1994-06-09
DK476189D0 (da) 1989-09-27
US4832937A (en) 1989-05-23
JPH02169009A (ja) 1990-06-29
NO893840D0 (no) 1989-09-27
ZA897401B (en) 1991-05-29
NO893840L (no) 1990-03-29
BR8904972A (pt) 1990-05-08
AU4234689A (en) 1990-04-05
EP0361895B1 (en) 1994-03-09
DE68913641D1 (de) 1994-04-14
AU622707B2 (en) 1992-04-16
EP0361895A2 (en) 1990-04-04
DK476189A (da) 1990-03-29
CN1041575A (zh) 1990-04-25
EP0361895A3 (en) 1991-01-02

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