ES2099092T3 - Metodo de control con potencial redox. - Google Patents

Metodo de control con potencial redox.

Info

Publication number
ES2099092T3
ES2099092T3 ES90850422T ES90850422T ES2099092T3 ES 2099092 T3 ES2099092 T3 ES 2099092T3 ES 90850422 T ES90850422 T ES 90850422T ES 90850422 T ES90850422 T ES 90850422T ES 2099092 T3 ES2099092 T3 ES 2099092T3
Authority
ES
Spain
Prior art keywords
redox
potential
set value
control method
redox potential
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
ES90850422T
Other languages
English (en)
Inventor
Ivan Dalin
Troy Berglind
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.)
Nouryon Pulp and Performance Chemicals AB
Original Assignee
Eka Chemicals AB
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 Eka Chemicals AB filed Critical Eka Chemicals AB
Application granted granted Critical
Publication of ES2099092T3 publication Critical patent/ES2099092T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gyroscopes (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Saccharide Compounds (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Fuel Cell (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Laser Surgery Devices (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Materials For Photolithography (AREA)

Abstract

SE PRESENTA UN METODO PARA MANTENER UN CONTENIDO DADO DE UNA SUBSTANCIA A EN UNA SOLUCION ACUOSA EN LA QUE SE CONSUME DE FORMA CONTINUA Y EN LA QUE EL POTENCIAL "REDOX" E, AL MENOS DENTRO DEL RANGO DE CONCENTRACION USADO, SATISFACE APROXIMADAMENTE LA ECUACION: E=G+F(X) EN DONDE X ES EL CONTENIDO DE A, F ES UNA FUNCION DE X CUYA DERIVADA DF/DX SE APROXIMA A O CUANDO X ASUME UN VALOR ALTO, Y G ES INDEPENDIENTE DE X PERO ESTA INFLUENCIADA POR OTROS PARAMETROS, TALES COMO EL PH, LA TEMPERATURA O SIMILARES. LA ADICION DE A SE CONTROLA DE TAL FORMA QUE UN VALOR DE CONJUNTO DEL POTENCIAL "REDOX" SE MANTIENE. EL VALOR DE CONJUNTO SE DETERMINA INCREMENTANDO O DECREMENTANDO LA ADICION DE A EN UNA FORMA PREDETERMINADA, DESPUES DE LO CUAL SE MIDE EL POTENCIAL "REDOX" Y EL VALOR MEDIDO SE USA PARA DETERMINAR EL VALOR DE CONJUNTO.
ES90850422T 1990-01-17 1990-12-20 Metodo de control con potencial redox. Expired - Lifetime ES2099092T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000166A SE9000166L (sv) 1990-01-17 1990-01-17 Redoxreglering

Publications (1)

Publication Number Publication Date
ES2099092T3 true ES2099092T3 (es) 1997-05-16

Family

ID=20378274

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90850422T Expired - Lifetime ES2099092T3 (es) 1990-01-17 1990-12-20 Metodo de control con potencial redox.

Country Status (9)

Country Link
US (1) US5154906A (es)
EP (1) EP0442250B1 (es)
AT (1) ATE150559T1 (es)
CA (1) CA2034037C (es)
DE (1) DE69030248T2 (es)
ES (1) ES2099092T3 (es)
FI (1) FI100365B (es)
NO (1) NO303553B1 (es)
SE (1) SE9000166L (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606950A3 (en) * 1993-01-13 1995-07-12 Eastman Kodak Co Method for determining the reaction rate of analytes.
JP3150615B2 (ja) * 1996-06-28 2001-03-26 三菱重工業株式会社 排煙脱硫処理における酸化制御方法
US5958147A (en) * 1997-05-05 1999-09-28 Akzo Nobel N.V. Method of treating a metal
EP0885985A1 (en) * 1997-05-05 1998-12-23 Akzo Nobel N.V. Method of treating a metal
DE19844179B4 (de) * 1998-09-28 2004-08-19 Usf Wallace & Tiernan Gmbh Verfahren zum Einstellen der Zugabe von Desinfektionsmittel zu Wasser
FR2954177B1 (fr) * 2009-12-23 2012-02-03 Inst Francais Du Petrole Methode de determination d'un taux de charge en gaz acide dans une solution absorbante et son application a un suivi d'un procede de desacidification
FR2967778A1 (fr) * 2010-11-24 2012-05-25 Total Raffinage Marketing Procede et dispositif de regulation de la demande en air d'unites merox extractif
FR2990630B1 (fr) * 2012-05-15 2014-12-26 Lab Sa Procede et installation de captation de polluants fortement oxydants dans un flux gazeux par voie humide
CN121595802B (zh) * 2026-01-29 2026-04-24 厦门市吉龙德环境工程有限公司 一种高锰酸盐指数在线自动测定方法及系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1280412A (en) * 1970-09-01 1972-07-05 Chemcut Corp Regenerating device
JPS549120A (en) * 1977-06-24 1979-01-23 Tokai Electro Chemical Co Method of controlling acid cleaning liquid for stainless steel
DE2930442A1 (de) * 1978-07-29 1980-02-07 Furukawa Electric Co Ltd Abwasserbehandlungsverfahren
US4341747A (en) * 1978-08-15 1982-07-27 Fmc Corporation Process of removing nitrogen oxides from gaseous mixtures
DE2917714C2 (de) * 1979-05-02 1983-12-22 Degussa Ag, 6000 Frankfurt Verfahren zur Messung mit Redox- oder ionensensitiven Elektroden
JPS58174579A (ja) * 1982-04-07 1983-10-13 Kawasaki Steel Corp 金属の硝酸処理におけるｎｏｘガス発生抑制方法
EP0259533A1 (en) * 1986-09-11 1988-03-16 Eka Nobel Aktiebolag Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid
CH673409A5 (es) * 1987-07-09 1990-03-15 Escher Wyss Gmbh
US4886552A (en) * 1988-09-09 1989-12-12 United Technologies Corporation Method for monitoring the removal of a metallic contaminant from the surface of a metallic article

Also Published As

Publication number Publication date
DE69030248T2 (de) 1997-06-26
NO303553B1 (no) 1998-07-27
SE9000166L (sv) 1991-07-18
ATE150559T1 (de) 1997-04-15
EP0442250A2 (en) 1991-08-21
SE9000166D0 (sv) 1990-01-17
NO910171D0 (no) 1991-01-15
FI100365B (fi) 1997-11-14
FI910192A0 (fi) 1991-01-14
NO910171L (no) 1991-07-18
CA2034037C (en) 1999-01-12
EP0442250A3 (en) 1994-06-01
FI910192A7 (fi) 1991-07-18
CA2034037A1 (en) 1991-07-18
US5154906A (en) 1992-10-13
DE69030248D1 (de) 1997-04-24
EP0442250B1 (en) 1997-03-19

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