GB872925A - Method of concentrating aqueous hydrogen peroxide solutions - Google Patents
Method of concentrating aqueous hydrogen peroxide solutionsInfo
- Publication number
- GB872925A GB872925A GB26793/57A GB2679357A GB872925A GB 872925 A GB872925 A GB 872925A GB 26793/57 A GB26793/57 A GB 26793/57A GB 2679357 A GB2679357 A GB 2679357A GB 872925 A GB872925 A GB 872925A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen peroxide
- mixture
- column
- solution
- vapour
- 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
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/01—Hydrogen peroxide
- C01B15/013—Separation; Purification; Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
<PICT:0872925/III/1> An aqueous solution of hydrogen peroxide containing at least 8% by weight of hydrogen peroxide is concentrated by heating the solution under subatmospheric pressure to form a first mixture of hydrogen peroxide and water vapours, introducing said first mixture into an intermediate section of a liquid-gas contact zone under subatmospheric pressure, introducing into a lower section of said contact zone a second mixture of hydrogen peroxide and water vapour containing a higher proportion of hydrogen peroxide corresponding to the vapours in equilibrium with an aqueous hydrogen peroxide solution of at least 70% by weight of hydrogen peroxide under the prevailing temperature and pressure, and establishing intimate countercurrent contact between the two feeds so as selectively to strip water from said first mixture. In a preferred embodiment, dilute aqueous hydrogen peroxide of 40% concentration is fed to the system at point 1 and is mixed with hydrogen peroxide of 73.5% concentration. This mixture circulates through a vaporiser 2 to a separator 4 containing glass fibres which cause liquid to pass downwards and vapour containing 39.1% of hydrogen peroxide to traverse a line 9 to the middle of a column 10 packed with Raschig rings. At the foot of the column, a reboiler 13 causes an 88.83% solution of hydrogen peroxide to remain boiling and provide enough vapour for substantially hydrogen peroxide-free distillate to leave the head of the column at 14. At the same time 88.83% hydrogen peroxide is withdrawn at the foot of the column as product. The whole system is under reduced pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US872925XA | 1956-08-27 | 1956-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB872925A true GB872925A (en) | 1961-07-12 |
Family
ID=22204300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26793/57A Expired GB872925A (en) | 1956-08-27 | 1957-08-26 | Method of concentrating aqueous hydrogen peroxide solutions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB872925A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2799122A1 (en) * | 2013-04-30 | 2014-11-05 | Instytut Lotnictwa | Method and arrangement for concentrating hydrogen peroxide |
CN108939588A (en) * | 2018-09-05 | 2018-12-07 | 江山市双氧水有限公司 | The process system of flush distillation circulation fluid filtration device in a kind of hydrogen peroxide enrichment facility |
-
1957
- 1957-08-26 GB GB26793/57A patent/GB872925A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2799122A1 (en) * | 2013-04-30 | 2014-11-05 | Instytut Lotnictwa | Method and arrangement for concentrating hydrogen peroxide |
CN108939588A (en) * | 2018-09-05 | 2018-12-07 | 江山市双氧水有限公司 | The process system of flush distillation circulation fluid filtration device in a kind of hydrogen peroxide enrichment facility |
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