GB654792A - Improvements in the catalytic production of acetaldehyde - Google Patents

Improvements in the catalytic production of acetaldehyde

Info

Publication number
GB654792A
GB654792A GB25895/48A GB2589548A GB654792A GB 654792 A GB654792 A GB 654792A GB 25895/48 A GB25895/48 A GB 25895/48A GB 2589548 A GB2589548 A GB 2589548A GB 654792 A GB654792 A GB 654792A
Authority
GB
United Kingdom
Prior art keywords
phosphoric acid
reaction chamber
reaction
temperature
emitting
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
GB25895/48A
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.)
BENGT OLOF PONTUS MOELLERSTEDT
Kemanord AB
Original Assignee
BENGT OLOF PONTUS MOELLERSTEDT
Superfosfat Fabriks AB
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 BENGT OLOF PONTUS MOELLERSTEDT, Superfosfat Fabriks AB filed Critical BENGT OLOF PONTUS MOELLERSTEDT
Priority to GB25895/48A priority Critical patent/GB654792A/en
Publication of GB654792A publication Critical patent/GB654792A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
    • C07C47/04—Formaldehyde
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/52—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

Acetaldehyde is produced by causing acetylene and water vapour to react in a reaction chamber at elevated temperature in the presence of a phosphate catalyst, phosphoric acid, or a phosphoric compound capable of emitting phosphoric acid under the conditions of the reaction, being continuously or intermittently supplied to the reaction chamber. The phosphoric acid or compound capable of emitting phosphoric acid may be injected into the gases before they enter the reaction chamber or may be sprayed directly on to the catalyst in the reaction chamber. The gases carrying the phosphoric acid or phosphoric acid-producing compound may be conveyed to the reaction chamber through another chamber having such a temperature as to cause the precipitation of excess phosphoric acid. Esters of phosphoric acid may be used as compounds capable of emitting phosphoric acid. In the example a mixture of acetylene and water vapour in the ratio of 1 to 4 and having a temperature slightly below 300 DEG C. is introduced into a container coated inside with graphite and active carbon. The carbon is impregnated with phosphoric acid and concentrated phosphoric acid is added continuously or intermittently. The gases are passed through the container into a reaction tower filled with a catalyst consisting of active carbon impregnated with zinc phosphate. The temperature in the reaction tower is suitably about 250 DEG C.
GB25895/48A 1948-10-05 1948-10-05 Improvements in the catalytic production of acetaldehyde Expired GB654792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB25895/48A GB654792A (en) 1948-10-05 1948-10-05 Improvements in the catalytic production of acetaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25895/48A GB654792A (en) 1948-10-05 1948-10-05 Improvements in the catalytic production of acetaldehyde

Publications (1)

Publication Number Publication Date
GB654792A true GB654792A (en) 1951-06-27

Family

ID=10235098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25895/48A Expired GB654792A (en) 1948-10-05 1948-10-05 Improvements in the catalytic production of acetaldehyde

Country Status (1)

Country Link
GB (1) GB654792A (en)

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