GB1516378A - Method of regenerating a bed of mixed ion exchange resins - Google Patents
Method of regenerating a bed of mixed ion exchange resinsInfo
- Publication number
- GB1516378A GB1516378A GB51694/75A GB5169475A GB1516378A GB 1516378 A GB1516378 A GB 1516378A GB 51694/75 A GB51694/75 A GB 51694/75A GB 5169475 A GB5169475 A GB 5169475A GB 1516378 A GB1516378 A GB 1516378A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exchange resin
- bed
- cation
- hydrazine
- regenerated
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000003456 ion exchange resin Substances 0.000 title 1
- 229920003303 ion-exchange polymer Polymers 0.000 title 1
- 230000001172 regenerating effect Effects 0.000 title 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 abstract 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 6
- 239000003729 cation exchange resin Substances 0.000 abstract 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 239000003957 anion exchange resin Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 229910001415 sodium ion Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- B01J49/08—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds containing cationic and anionic exchangers in separate beds
-
- 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
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
- B01J49/53—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents for cationic exchangers
-
- 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
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
- B01J49/57—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents for anionic exchangers
-
- 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
- B01J49/80—Automatic regeneration
- B01J49/85—Controlling or regulating devices therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
1516378 Ion-exchange CRANE CO 17 Dec 1975 [18 Dec 1974] 51694/75 Heading B1J A method of treating an anion-exchange resin bed which is contaminated by some cation-exchange resin (e.g. a bed incompletely separated from a mixed bed), and which has been regenerated by an alkali thereby converting the cation-exchange resin to alkalimetal type, comprises treating the regenerated bed with hydrazine to effect displacement of alkali metal from the cation-exchange resin, the hydrazine being in aqueous solution which after use is purified by being passed through a bed of hydrazine-type cation-exchange resin, whereby the purified hydrazine solution can be re-used. As described a mixed bed is backwashed which separates the two types of resin; the anion-exchange resin is removed to a separate regenerator and regenerated by aqueous caustic soda, then treated with aqueous hydrazine. The hydrazine solution thus acquires sodium ions from traces of cation-exchange resin present, and is treated with a hydrazinetype cation-exchange resin to remove these.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49145178A JPS5172143A (en) | 1974-12-18 | 1974-12-18 | Fukusuino datsuenshoriho |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1516378A true GB1516378A (en) | 1978-07-05 |
Family
ID=15379220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51694/75A Expired GB1516378A (en) | 1974-12-18 | 1975-12-17 | Method of regenerating a bed of mixed ion exchange resins |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5172143A (en) |
| CA (1) | CA1053810A (en) |
| GB (1) | GB1516378A (en) |
| IT (1) | IT1060453B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119844A (en) * | 1981-01-16 | 1982-07-26 | Mitsubishi Chem Ind Ltd | Method for regeneration of ion exchange resin mixed bed |
| CN110282696A (en) * | 2019-07-24 | 2019-09-27 | 中国能源建设集团西北电力试验研究院有限公司 | A kind of equipment and its preparation process for temporarily producing qualified demineralized water |
-
1974
- 1974-12-18 JP JP49145178A patent/JPS5172143A/en active Granted
-
1975
- 1975-12-11 CA CA241,691A patent/CA1053810A/en not_active Expired
- 1975-12-17 IT IT52747/75A patent/IT1060453B/en active
- 1975-12-17 GB GB51694/75A patent/GB1516378A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5172143A (en) | 1976-06-22 |
| CA1053810A (en) | 1979-05-01 |
| JPS5332975B2 (en) | 1978-09-11 |
| IT1060453B (en) | 1982-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1402741A (en) | Removal of urea from a circulating dialysate solution | |
| GB1385708A (en) | Process for the removal and recovery of mineral pollutants from water | |
| GB569112A (en) | Operation of anion-exchange units | |
| DE3363140D1 (en) | Process for recovering insulin | |
| GB1516378A (en) | Method of regenerating a bed of mixed ion exchange resins | |
| GB1353977A (en) | Purification processes | |
| ES425239A1 (en) | Ion exchange waste water treatment process | |
| GB904914A (en) | Process for removing mineral constituents from an aqueous liquid | |
| GB1108452A (en) | Regeneration of cation exchange resins | |
| GB1444128A (en) | Processes for the recovery of fluorine from aqueous solutions | |
| GB1411455A (en) | Method of extracting sugar from molasses by the ion exclusion method | |
| GB1034223A (en) | Process and Apparatus for the Treatment of Milk | |
| GB788112A (en) | Improvements in or relating to the removal of oxygen from water and solutions | |
| GB1278005A (en) | Process of regenerating the anion and cation exchange resins of a mixed bed demineralizer | |
| DE3173215D1 (en) | Process for preparing an anion exchanger, and its use | |
| GB1404399A (en) | Ion exchange regeneration process | |
| JPS52217A (en) | Process for removal formaldehyde in aqueous solution | |
| JPS5228488A (en) | Regeneration method of strongly basic anion exchange resin | |
| ES8702510A1 (en) | Uranium recovery by cation exchange | |
| JPS5291819A (en) | Purification of aqueous solutions of acrylamide | |
| GB751856A (en) | Improvements in the recovery of acids from effluents using ion-exchange materials | |
| JPS5347400A (en) | Purifying method for caustic alkali solution | |
| JPS5252898A (en) | Methof for removing fe from caustic alkali | |
| GB1039978A (en) | Process for purifying caustic soda lyes | |
| GB882019A (en) | Process for the regeneration of strongly basic anion exchangers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |