GB1052034A - - Google Patents
Info
- Publication number
- GB1052034A GB1052034A GB2279963A GB2279963A GB1052034A GB 1052034 A GB1052034 A GB 1052034A GB 2279963 A GB2279963 A GB 2279963A GB 2279963 A GB2279963 A GB 2279963A GB 1052034 A GB1052034 A GB 1052034A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartments
- compartment
- sea water
- tank
- water
- 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
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
-
- 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
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/042—Prevention of deposits
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Metallurgy (AREA)
- Urology & Nephrology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
1,052,034. Acidifying sea water by electrodialysis. AMERICAN MACHINE & FOUNDRY CO. June 7, 1963, No.22799/63. Heading C7B. Apparatus for electrolytically producing acid for use in treatment of salt water, e.g. sea water, comprising a cell having an anodecontaining compartment a salt water compartment and a cathode-containing compartment with a cation permeable membrane between anode and salt water compartments and an anion-permeable membrane between the salt water and cathode compartments, separate first and second circulating means for circulating an acidified liquid and an aqueous alkaline liquid through said anode and cathode compartments, and a floe former, said second circulating means including an alkaline solution tank having an overflow leading into the floe former. As shown, acid for addition to sea-water fed to an evaporator in a ship to prevent scale formation is formed in an electrodialysis cell comprising anode, acidforming, buffer and cathode compartments formed by hollow end plates 14, 15 and frame members 16, 17 separated by cation permeable membranes 20, 22 and an anion permeable membrane 21. Dilute sulphuric acid is circulated through the anode compartment in which oxygen is evolved and the anolyte is kept at constant strength by a float valve-controlled addition of distilled water. The acid forming compartment is fed with sea water which after acidification is mixed with the main feed via a venturi blender 29 pipe 12 to the evaporator. Softened sea water and alkaline, sea water are passed through the buffer and cathode compartments, the feed for them originating from a floe settling tank 61 in which insoluble magnesium and calcium carbonates are removed from sea water supplied via pipe 57. Either this supply pipe or the floe forming cup 59 are heated while the settlement tank is lagged. Carbon dioxide in addition to that present in the sea water initially supplied may be introduced into the tank 48, such additional CO 2 being obtained by stripping from the acidified sea water product. Hydrogen evolved in the cathode compartment is withdrawn through pipe 52 with the catholyte and separated from it by a blower 56 from which the hydrogen is ducted to waste. Modifications providing a constant head supply instead of control by valve 58 is also described and the settling tank 61 may be omitted if an overflow for the floc forming cup 59 is provided, although rinsing of the buffer and cathode compartments is then necessary before prolonged shut-down. By effecting hydraulic and electrical reversal Fig. 3 (not shown), flushing of the cell may be effected periodically to remove any traces of scale. If reversal is not required the buffer compartment 17 and associated pipes and tank 40 may be omitted, pipe 68 feeding directly into tank 48. To increase acid production capacity without increasing ionic membrane sizes or multiplying electrical connections, several sets of four compartments may be arranged end-toend separated by bipolar platinum foil electrodes with compartments of the same function being connected in series, the end compartments of the cell alone containing electrodes to which the D.C. supply is connected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2279963A GB1052034A (en) | 1963-06-07 | 1963-06-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2279963A GB1052034A (en) | 1963-06-07 | 1963-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1052034A true GB1052034A (en) | 1966-12-21 |
Family
ID=1756752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2279963A Expired GB1052034A (en) | 1963-06-07 | 1963-06-07 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1052034A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0748771A2 (en) * | 1995-06-16 | 1996-12-18 | Eka Nobel Ab | Method for evaporating process wastewater |
US20140042029A1 (en) * | 2012-08-13 | 2014-02-13 | Enviro Water Minerals Company, Inc. | System for rinsing electrodialysis electrodes |
CN109704442A (en) * | 2017-10-26 | 2019-05-03 | 中国科学院大连化学物理研究所 | A kind of electrode plate structure for seawater acidizing device |
-
1963
- 1963-06-07 GB GB2279963A patent/GB1052034A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0748771A2 (en) * | 1995-06-16 | 1996-12-18 | Eka Nobel Ab | Method for evaporating process wastewater |
EP0748771A3 (en) * | 1995-06-16 | 1997-06-04 | Eka Nobel Ab | Method for evaporating process wastewater |
US5792313A (en) * | 1995-06-16 | 1998-08-11 | Eka Nobel Ab | Method for evaporating process wastewater |
US20140042029A1 (en) * | 2012-08-13 | 2014-02-13 | Enviro Water Minerals Company, Inc. | System for rinsing electrodialysis electrodes |
US10105653B2 (en) * | 2012-08-13 | 2018-10-23 | Enviro Water Minerals Company, Inc. | System for rinsing electrodialysis electrodes |
CN109704442A (en) * | 2017-10-26 | 2019-05-03 | 中国科学院大连化学物理研究所 | A kind of electrode plate structure for seawater acidizing device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0503589B1 (en) | Electrodialysis reversal process and apparatus with bipolar membranes | |
US3165460A (en) | Electrolytic acid generator | |
GB787976A (en) | Electrolysis process | |
GB1240710A (en) | Electrolytic separation of ions from a solution | |
GB767103A (en) | Electrolytic production of weak acids | |
NO310284B1 (en) | Process for the preparation of chloride oxide | |
GB675253A (en) | Process for the regeneration of ion exchanger substances | |
US2796395A (en) | Electrolytic desalting of saline solutions | |
GB1052034A (en) | ||
US2713553A (en) | Electrochemical production of periodate oxypolysaccharides | |
FR2449656A1 (en) | SEAWATER DESALINATION PROCESS | |
JPS5620173A (en) | Preparation of chlorine water | |
US2033732A (en) | Process for the working up of soaps | |
FI88312B (en) | FOERFARANDE FOER PRODUKTION AV KLORSYRA | |
US2797192A (en) | Electrolytic preparation of alkaline chlorates | |
GB1045630A (en) | Method of producing pure nickel by electrolytic refining and product thus obtained | |
US2589635A (en) | Electrochemical process | |
US3595766A (en) | Prevention of protein precipitation in the electrodialytic treatment of whey | |
GB647719A (en) | Improvements in or relating to the electrolytic production of chlorates | |
GB739722A (en) | Electrolysis process and apparatus | |
US5578182A (en) | Electrolytic production of hypophosphorous acid | |
EP0032007B1 (en) | Method for the regeneration of acid in the manufacture of regenerated cellulose | |
US1378939A (en) | Process of making thymol from nitrocymene | |
GB1002150A (en) | Method for preparing dialkyl esters of dicarboxylic acids | |
MX9401113A (en) | IMPROVED PROCESS AND CUBA FOR CHLORINE-ALCALI ELECTROLYSIS WITH DIAPHRAGM. |