GB872925A - Method of concentrating aqueous hydrogen peroxide solutions - Google Patents

Method of concentrating aqueous hydrogen peroxide solutions

Info

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
Application number
GB26793/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Columbia Southern Chemical Corp
Original Assignee
Columbia Southern Chemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Columbia Southern Chemical Corp filed Critical Columbia Southern Chemical Corp
Publication of GB872925A publication Critical patent/GB872925A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/01Hydrogen peroxide
    • C01B15/013Separation; 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.
GB26793/57A 1956-08-27 1957-08-26 Method of concentrating aqueous hydrogen peroxide solutions Expired GB872925A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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