GB984378A - Improvements in or relating to sodium hypochlorite production - Google Patents
Improvements in or relating to sodium hypochlorite productionInfo
- Publication number
- GB984378A GB984378A GB4020162A GB4020162A GB984378A GB 984378 A GB984378 A GB 984378A GB 4020162 A GB4020162 A GB 4020162A GB 4020162 A GB4020162 A GB 4020162A GB 984378 A GB984378 A GB 984378A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chlorine
- line
- mixture
- liquor
- reactor
- 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
- 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
- C01B11/04—Hypochlorous acid
- C01B11/06—Hypochlorites
- C01B11/062—Hypochlorites of alkali metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
<PICT:0984378/C1/1> High strength sodium hypochlorite liquor containing more than 10% by weight of chlorine, a sodium chlorate concentration of less than 0.1% by weight and a free caustic content of not less than 0.1%, and preferably between 0.2 and 0.8%, by weight is continuously produced by the continuous absorption in an aqueous caustic soda solution of gaseous chlorine at the rate of between 0.01 and 0.5, and preferably between 0.05 and 0.2 pounds of chlorine per cubic foot of solution per minute at a temperature above 22 DEG C. and preferably between 25 DEG and 30 DEG C. The chlorine is supplied as a gaseous mixture containing between 25% and 99.9% by volume of molecular chlorine with inert diluent gas or gases, suitable mixtures being an air and chlorine mixture with molecular chlorine content between 50% and 75% by volume, compressed cell gas with molecular chlorine content of about 97% by volume resulting from the electrolysis of brine, and the uncondensed residue from the condensation of chlorine gas produced in electrolytic cells. In Fig. 3, a reactor 1 is fed with chlorine gas mixture through line 2 and sparge assembly 3 and with caustic liquor through line 4. An emergency overflow line 5 connects the reactor with an empty vessel 6. Residual inert gases are vented through line 7. A detector 8 automatically records the redex potential of the mixture and controls the feed rate of either chlorine or caustic liquor by operation of either valve 9 or valve 10, the feed rate of the other component being controlled manually. Hypochlorite liquor is removed through line 11, passed to a cooler 12 and recirculated to the reactor for cooling purposes after a minor portion has been bled off via line 13 to storage, the rate of withdrawal being controlled automatically to maintain a constant level in vessel 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4020162A GB984378A (en) | 1962-10-24 | 1962-10-24 | Improvements in or relating to sodium hypochlorite production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4020162A GB984378A (en) | 1962-10-24 | 1962-10-24 | Improvements in or relating to sodium hypochlorite production |
Publications (1)
Publication Number | Publication Date |
---|---|
GB984378A true GB984378A (en) | 1965-02-24 |
Family
ID=10413707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4020162A Expired GB984378A (en) | 1962-10-24 | 1962-10-24 | Improvements in or relating to sodium hypochlorite production |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB984378A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054996A1 (en) * | 1980-12-22 | 1982-06-30 | SOLVAY & Cie (Société Anonyme) | Process and plant for preparing concentrated aqueous alkaline-metal hypochlorite solutions |
WO1991003421A1 (en) * | 1989-09-05 | 1991-03-21 | Olin Corporation | High purity chloric acid |
EP1773715A2 (en) * | 2004-07-12 | 2007-04-18 | Powell Technologies LLC | Manufacture of high-strength, low-salt hypochlorite bleach |
WO2018026260A1 (en) * | 2016-08-05 | 2018-02-08 | Cheng Chew Kong | System and method for recovering sodium hypochlorite from exhaust chlorine gas |
-
1962
- 1962-10-24 GB GB4020162A patent/GB984378A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054996A1 (en) * | 1980-12-22 | 1982-06-30 | SOLVAY & Cie (Société Anonyme) | Process and plant for preparing concentrated aqueous alkaline-metal hypochlorite solutions |
WO1991003421A1 (en) * | 1989-09-05 | 1991-03-21 | Olin Corporation | High purity chloric acid |
EP1773715A2 (en) * | 2004-07-12 | 2007-04-18 | Powell Technologies LLC | Manufacture of high-strength, low-salt hypochlorite bleach |
EP1773715A4 (en) * | 2004-07-12 | 2009-03-18 | Powell Technologies Llc | Manufacture of high-strength, low-salt hypochlorite bleach |
WO2018026260A1 (en) * | 2016-08-05 | 2018-02-08 | Cheng Chew Kong | System and method for recovering sodium hypochlorite from exhaust chlorine gas |
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