GB307521A - Improved process for increasing the yield in photochemical gas reactions - Google Patents

Improved process for increasing the yield in photochemical gas reactions

Info

Publication number
GB307521A
GB307521A GB2926027A GB2926027A GB307521A GB 307521 A GB307521 A GB 307521A GB 2926027 A GB2926027 A GB 2926027A GB 2926027 A GB2926027 A GB 2926027A GB 307521 A GB307521 A GB 307521A
Authority
GB
United Kingdom
Prior art keywords
vapour
radiations
mercury
hydrogen
gases
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
GB2926027A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2926027A priority Critical patent/GB307521A/en
Publication of GB307521A publication Critical patent/GB307521A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/123—Ultra-violet light

Abstract

307,521. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 2, 1927. Radiations, treating substances with. - In effecting reactions in gases, to which metallic vapour has been added, by treatment with radiations from an electrical discharge in metallic vapour, the gas is repeatedly exposed to the radiations, the time of each exposure being limited to prevent the initiation of secondary reactions. The reaction products are continuously removed from the circulating gas. Improved results are obtained by first removing impurities which retard the reaction, and by employing increased pressure. Several examples of procedure are given, of which the following are typical :-(1) a mixture of carbon monoxide and hydrogen is freed from oxygen and moisture and after being charged with mercury vapour is passed with a velocity of 90 ccm. per second through a cylindrical chamber of 3 litres capacity containing a mercury-vapour lamp 50 cm. in length. After each exposure the formaldehyde produced is removed and the gases are recirculated: (2) hydrogen with a small addition of oxygen is charged with mercury vapour or irradiated. The hydrogen peroxide produced is continuously removed by a spray of water.
GB2926027A 1927-11-02 1927-11-02 Improved process for increasing the yield in photochemical gas reactions Expired GB307521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2926027A GB307521A (en) 1927-11-02 1927-11-02 Improved process for increasing the yield in photochemical gas reactions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2926027A GB307521A (en) 1927-11-02 1927-11-02 Improved process for increasing the yield in photochemical gas reactions

Publications (1)

Publication Number Publication Date
GB307521A true GB307521A (en) 1929-03-04

Family

ID=10288683

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2926027A Expired GB307521A (en) 1927-11-02 1927-11-02 Improved process for increasing the yield in photochemical gas reactions

Country Status (1)

Country Link
GB (1) GB307521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908622A (en) * 1957-06-04 1959-10-13 Sun Oil Co Photochemical preparation of formaldehyde
WO1983004420A1 (en) * 1982-06-10 1983-12-22 Hughes Aircraft Company Process for forming sulfide layers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908622A (en) * 1957-06-04 1959-10-13 Sun Oil Co Photochemical preparation of formaldehyde
WO1983004420A1 (en) * 1982-06-10 1983-12-22 Hughes Aircraft Company Process for forming sulfide layers

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