TW200635857A - Process to prepare chlorine-containing compounds - Google Patents
Process to prepare chlorine-containing compoundsInfo
- Publication number
- TW200635857A TW200635857A TW095105512A TW95105512A TW200635857A TW 200635857 A TW200635857 A TW 200635857A TW 095105512 A TW095105512 A TW 095105512A TW 95105512 A TW95105512 A TW 95105512A TW 200635857 A TW200635857 A TW 200635857A
- Authority
- TW
- Taiwan
- Prior art keywords
- sodium chloride
- solution
- polyvalent cations
- chlorine
- salt solution
- Prior art date
Links
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title abstract 3
- 239000000460 chlorine Substances 0.000 title abstract 3
- 229910052801 chlorine Inorganic materials 0.000 title abstract 3
- 150000001875 compounds Chemical class 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 6
- 150000001768 cations Chemical class 0.000 abstract 3
- 239000012266 salt solution Substances 0.000 abstract 3
- 239000011780 sodium chloride Substances 0.000 abstract 3
- 239000012466 permeate Substances 0.000 abstract 2
- 239000012465 retentate Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- -1 chloride anions Chemical class 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000001728 nano-filtration Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/12—Chloric acid
- C01B11/14—Chlorates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
-
- 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
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
-
- 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
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/06—Specific process operations in the permeate stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/12—Addition of chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
- B01D2311/251—Recirculation of permeate
- B01D2311/2512—Recirculation of permeate to feed side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
- B01D2311/252—Recirculation of concentrate
- B01D2311/2523—Recirculation of concentrate to feed side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2684—Electrochemical processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Metallurgy (AREA)
- Electrochemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to process to prepare a chlorine-containing compound using an aqueous salt solution containing at least 100 g/l of sodium chloride and a contaminating amount of polyvalent cations comprising the steps of (i) preparing an aqueous salt solution containing at least 100 g/l of sodium chloride and at least 0.01 ppm of polyvalent cations by dissolving a sodium chloride source in water, (ii) adding an effective amount of at least one positive retention enhancing component to the aqueous solution, (iii) subsequently subjecting the solution to a nanofiltration step, thereby separating the solution into a retentate which is enriched for polyvalent cations and a permeate which is the purified aqueous salt solution, (iv) reacting the chloride anions in the permeate to a chlorine-containing compound by an electrolysis step, and (v) recycling at least part of the retentate to dissolution step (i).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65407805P | 2005-02-18 | 2005-02-18 | |
EP05106573 | 2005-07-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200635857A true TW200635857A (en) | 2006-10-16 |
TWI429590B TWI429590B (en) | 2014-03-11 |
Family
ID=36168369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095105512A TWI429590B (en) | 2005-02-18 | 2006-02-17 | Process to prepare chlorine-containing compounds |
Country Status (5)
Country | Link |
---|---|
HU (1) | HUE041348T2 (en) |
NO (1) | NO344281B1 (en) |
PT (1) | PT1848661T (en) |
TR (1) | TR201815516T4 (en) |
TW (1) | TWI429590B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI631072B (en) * | 2011-06-20 | 2018-08-01 | 共生科技有限公司 | Weakly acidic hypochlorous acid, manufacturing device thereof and method of manufacturing same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4038365A (en) * | 1975-12-03 | 1977-07-26 | Basf Wyandotte Corporation | Removal of low level hardness impurities from brine feed to chlorine cells |
US4176022A (en) * | 1978-04-27 | 1979-11-27 | Ppg Industries, Inc. | Removal of part per billion level hardness impurities from alkali metal chloride brines |
EA004320B1 (en) * | 2001-06-19 | 2004-04-29 | Акцо Нобель Н.В. | Retaining agents for preparing saturated purified brine |
-
2006
- 2006-02-13 PT PT06708212T patent/PT1848661T/en unknown
- 2006-02-13 TR TR2018/15516T patent/TR201815516T4/en unknown
- 2006-02-13 HU HUE06708212A patent/HUE041348T2/en unknown
- 2006-02-17 TW TW095105512A patent/TWI429590B/en active
-
2007
- 2007-08-07 NO NO20074051A patent/NO344281B1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI631072B (en) * | 2011-06-20 | 2018-08-01 | 共生科技有限公司 | Weakly acidic hypochlorous acid, manufacturing device thereof and method of manufacturing same |
Also Published As
Publication number | Publication date |
---|---|
PT1848661T (en) | 2018-11-09 |
TWI429590B (en) | 2014-03-11 |
HUE041348T2 (en) | 2019-05-28 |
TR201815516T4 (en) | 2018-11-21 |
NO20074051L (en) | 2007-11-15 |
NO344281B1 (en) | 2019-10-28 |
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