ES8406569A1 - Procedimiento electrolitico para la purificacion de soluciones causticas contaminadas. - Google Patents

Procedimiento electrolitico para la purificacion de soluciones causticas contaminadas.

Info

Publication number
ES8406569A1
ES8406569A1 ES521970A ES521970A ES8406569A1 ES 8406569 A1 ES8406569 A1 ES 8406569A1 ES 521970 A ES521970 A ES 521970A ES 521970 A ES521970 A ES 521970A ES 8406569 A1 ES8406569 A1 ES 8406569A1
Authority
ES
Spain
Prior art keywords
regeneration
ion exchange
exchange resins
reconcentration
rinse
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
Application number
ES521970A
Other languages
English (en)
Other versions
ES521970A0 (es
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.)
Oronzio de Nora SA
Original Assignee
Oronzio de Nora SA
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 Oronzio de Nora SA filed Critical Oronzio de Nora SA
Publication of ES521970A0 publication Critical patent/ES521970A0/es
Publication of ES8406569A1 publication Critical patent/ES8406569A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/14—Alkali metal compounds
    • C25B1/16—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/05—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds
    • B01J49/07—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds containing anionic exchangers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Removal Of Specific Substances (AREA)
  • Treating Waste Gases (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

PROCEDIMIENTO ELECTROLITICO PARA LA PURIFICACION DE SOLUCIONES CAUSTICAS CONTAMINADAS, PROCEDENTES DE LOS CICLOS DE REGENERACION Y ENJUAGADO DE RESINAS INTERCAMBIADORAS DE ANIONES.CONSISTE EN: A) HACER CIRCULAR LA SOLUCION CAUSTICA CONTAMINADA A TRAVES DEL COMPARTIMENTO ANODICO DE UNA CELDA DE ELECTROLISIS SEPARADO DEL COMPARTIMENTO CATODICO POR UNA MEMBRANA INTERCAMBIADORA DE CATIONES; B) ALIMENTAR AGUA DESMINERALIZADA AL COMPARTIMENTO CATODICO DE LA CELDA; C) REALIZAR LA ELECTROLISIS A ELEVADA DENSIDAD DE CORRIENTE DESDE 500 A 1.000 A/M, PARA REDUCIR LA CONCENTRACION CAUSTICAEN EL ANOLITO DE 10 GR/L A 2 GR/L O INFERIOR; Y D0 RECUPERAR DEL COMPARTIMENTO CATODICO DE LA CELDA LA SOLUCION DE SOSA CAUSTICA PURIFICADA, QUE SE MANTIENE CONSTANTE Y DENTRO DE LA GAMA DE 100 A 200 GR/L.
ES521970A 1982-04-30 1983-04-29 Procedimiento electrolitico para la purificacion de soluciones causticas contaminadas. Expired ES8406569A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21015/82A IT1151559B (it) 1982-04-30 1982-04-30 Procedimento elettrolitico per la purificazione e riconcentrazione delle soluzioni alcaline di rigenerazione delle resine anioniche

Publications (2)

Publication Number Publication Date
ES521970A0 ES521970A0 (es) 1984-07-01
ES8406569A1 true ES8406569A1 (es) 1984-07-01

Family

ID=11175426

Family Applications (1)

Application Number Title Priority Date Filing Date
ES521970A Expired ES8406569A1 (es) 1982-04-30 1983-04-29 Procedimiento electrolitico para la purificacion de soluciones causticas contaminadas.

Country Status (6)

Country Link
EP (1) EP0093435B1 (es)
JP (1) JPS58202091A (es)
AT (1) ATE16790T1 (es)
DE (1) DE3361396D1 (es)
ES (1) ES8406569A1 (es)
IT (1) IT1151559B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1210956B (it) * 1982-11-25 1989-09-29 Sigma Tau Ind Farmaceuti Procedimento e cella elettrolitica per la preparazione di composti organici.
GB8711363D0 (en) * 1987-05-14 1987-06-17 Anglian Water Authority Ground-water treatment
BE1003943A3 (fr) * 1990-09-28 1992-07-22 Solvay Procede et installation pour la fabrication de solutions aqueuses d'hydroxyde de metal alcalin.
US5389211A (en) * 1993-11-08 1995-02-14 Sachem, Inc. Method for producing high purity hydroxides and alkoxides
KR101662047B1 (ko) 2013-07-08 2016-10-04 피너지 엘티디. 전해질 재생
CA2945590C (en) 2014-04-13 2019-06-11 Alcoa Inc. Systems and methods for regeneration of aqueous alkaline solution

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493488A (en) * 1967-06-20 1970-02-03 Westinghouse Electric Corp Electrodialysis apparatus
FR1547493A (fr) * 1967-07-25 1968-11-29 Perfectionnements apportés aux moyens pour enlever des ions d'une solution
US4260463A (en) * 1979-09-20 1981-04-07 Ppg Industries, Inc. Removal of organic contaminants from waste water

Also Published As

Publication number Publication date
EP0093435B1 (en) 1985-12-04
JPS58202091A (ja) 1983-11-25
IT8221015A0 (it) 1982-04-30
EP0093435A1 (en) 1983-11-09
ES521970A0 (es) 1984-07-01
ATE16790T1 (de) 1985-12-15
IT1151559B (it) 1986-12-24
DE3361396D1 (en) 1986-01-16

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506