ES2117935A1 - Metodo para la eliminacion de cromo de efluentes liquidos y su recuperacion. - Google Patents
Metodo para la eliminacion de cromo de efluentes liquidos y su recuperacion.Info
- Publication number
- ES2117935A1 ES2117935A1 ES09501806A ES9501806A ES2117935A1 ES 2117935 A1 ES2117935 A1 ES 2117935A1 ES 09501806 A ES09501806 A ES 09501806A ES 9501806 A ES9501806 A ES 9501806A ES 2117935 A1 ES2117935 A1 ES 2117935A1
- Authority
- ES
- Spain
- Prior art keywords
- chromium
- recovery
- removal
- organic phase
- liquid effluents
- 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.)
- Granted
Links
Landscapes
- Treatment Of Sludge (AREA)
- Removal Of Specific Substances (AREA)
Abstract
METODO PARA LA ELIMINACION DE CROMO DE EFLUENTES LIQUIDOS Y SU RECUPERACION. COMPRENDE TRATAR EL EFLUENTE CON UN AGENTE EXTRACTANTE, PRIMENE 81R, EN UNA DISOLUCION ORGANICA (DISOLVENTE, QUEROSENO O PETROLEO). LA DISOLUCION ACUOSA QUEDA LIBRE DE CROMO Y ES POSIBLE SU VERTIDO TRAS LA CORRECCION DEL PH, SI FUERE NECESARIO. EL CROMO SE REEXTRAE DE LA FASE ORGANICA MEDIANTE UNA DISOLUCION ALCALINA, PRODUCIENDOSE UNA FASE ORGANICA REGENERADA Y UNA SUSPENSION ACUOSA DE HIDROXIDO DE CROMO (III). LA FASE ORGANICA REGENERADA SE RECIRCULA A CABEZA DE PROCESO. DE LA SUSPENSION ACUOSA SE OBTIENEN POR FILTRACION UN LODO DE HIDROXIDO DE CROMO (III). APLICACION MEDIOAMBIENTAL EN EL AMBITO DE LA DEPURACION DE EFLUENTES INDUSTRIALES CONTAMINADOS CON CROMO.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9501806A ES2117935B1 (es) | 1995-09-18 | 1995-09-18 | Metodo para la eliminacion de cromo de efluentes liquidos y su recuperacion. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9501806A ES2117935B1 (es) | 1995-09-18 | 1995-09-18 | Metodo para la eliminacion de cromo de efluentes liquidos y su recuperacion. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2117935A1 true ES2117935A1 (es) | 1998-08-16 |
ES2117935B1 ES2117935B1 (es) | 1999-04-01 |
Family
ID=8291596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9501806A Expired - Fee Related ES2117935B1 (es) | 1995-09-18 | 1995-09-18 | Metodo para la eliminacion de cromo de efluentes liquidos y su recuperacion. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2117935B1 (es) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4956154A (en) * | 1988-03-09 | 1990-09-11 | Unc Reclamation | Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions |
SU1745684A1 (ru) * | 1989-12-05 | 1992-07-07 | Институт неорганической и физической химии АН АзССР | Способ очистки сточных вод от кислотных красителей |
US5202028A (en) * | 1991-09-07 | 1993-04-13 | Basf Aktiengesellschaft | Removal of metal complex dyes from wastewaters |
-
1995
- 1995-09-18 ES ES9501806A patent/ES2117935B1/es not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4956154A (en) * | 1988-03-09 | 1990-09-11 | Unc Reclamation | Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions |
SU1745684A1 (ru) * | 1989-12-05 | 1992-07-07 | Институт неорганической и физической химии АН АзССР | Способ очистки сточных вод от кислотных красителей |
US5202028A (en) * | 1991-09-07 | 1993-04-13 | Basf Aktiengesellschaft | Removal of metal complex dyes from wastewaters |
Non-Patent Citations (1)
Title |
---|
BASE DE DATOS WPI en EPOQUE, DW 9325, Londres: Derwent Publications Ltd., AN 93-204690 & SU 1745684 A1 (AS AZERB INORG. PHYS. CHEM. INST.) * |
Also Published As
Publication number | Publication date |
---|---|
ES2117935B1 (es) | 1999-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19980816 Kind code of ref document: A1 Effective date: 19980816 |
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FD2A | Announcement of lapse in spain |
Effective date: 20151229 |