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1. WO2014115133 - BROMIDE RECOVERY FROM AQUEOUS STREAMS

Publication Number WO/2014/115133
Publication Date 31.07.2014
International Application No. PCT/IL2014/000007
International Filing Date 27.01.2014
IPC
B01D 15/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
04with ion-exchange materials as adsorbents
B01D 15/36 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
08Selective adsorption, e.g. chromatography
26characterised by the separation mechanism
36involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
C02F 1/42 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
42by ion-exchange
CPC
B01J 41/05
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
41Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
04Processes using organic exchangers
05in the strongly basic form
C02F 1/42
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
42by ion-exchange
C02F 2001/422
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
42by ion-exchange
422using anionic exchangers
C02F 2101/12
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2101Nature of the contaminant
10Inorganic compounds
12Halogens or halogen-containing compounds
C02F 2103/18
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2103Nature of the water, waste water, sewage or sludge to be treated
18from the purification of gaseous effluents
C02F 2303/16
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2303Specific treatment goals
16Regeneration of sorbents, filters
Applicants
  • BROMINE COMPOUNDS LTD. [IL]/[IL]
Inventors
  • KORNGOLD, Emanuel
  • COHEN, Mordechai
  • FREIBERG, Mira, Bergstein
  • RUBIN, Sharon, Krumbein
Agents
  • PYERNIK, Moshe
Priority Data
61/757,16127.01.2013US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) BROMIDE RECOVERY FROM AQUEOUS STREAMS
(FR) RÉCUPÉRATION DE BROMURE DE FLUX AQUEUX
Abstract
(EN) The invention relates to a process for recovering bromide from a halide-containing aqueous stream, comprising the steps of: providing a feed of halide-containing aqueous stream; contacting an anion-exchange resin with said feed, to form halide-loaded resin; treating said halide-loaded resin with a regenerant and subsequently with a rinse to produce, in succession, a chloride-rich solution, a mixed chloride/bromide solution, a bromide-rich solution and an essentially halide-free solution; directing said mixed chloride/bromide solution to said feed; processing said bromide-rich solution to recover one or more bromide products; and utilizing said essentially halide-free solution for regenerant dilution and/or rinsing of said resin. An apparatus for carrying out the process is also disclosed.
(FR) La présente invention concerne un procédé de récupération de bromure à partir d'un flux aqueux contenant des halogénures, comprenant les étapes consistant à : fournir une alimentation de flux aqueux contenant des halogénures; mettre en contact une résine échangeuse d'anions avec ladite alimentation pour former une résine chargée en halogénures; traiter ladite résine chargée en halogénures avec un régénérant puis par un rinçage pour produire, dans l'ordre, une solution riche en chlorure, une solution contenant un mélange chlorure/bromure, une solution riche en bromure et une solution pratiquement exempte d'halogénure; diriger ladite solution contenant un mélange chlorure/bromure vers ladite alimentation; traiter ladite solution riche en bromure pour récupérer un ou plusieurs produits bromure; et utiliser ladite solution pratiquement exempte d'halogénure pour la dilution du régénérant et/ou le rinçage de ladite résine. L'invention porte également sur un appareil pour mettre en œuvre le procédé.
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