GB514792A - Improvements in the manufacture and production of olefine oxides - Google Patents

Improvements in the manufacture and production of olefine oxides

Info

Publication number
GB514792A
GB514792A GB1456238A GB1456238A GB514792A GB 514792 A GB514792 A GB 514792A GB 1456238 A GB1456238 A GB 1456238A GB 1456238 A GB1456238 A GB 1456238A GB 514792 A GB514792 A GB 514792A
Authority
GB
United Kingdom
Prior art keywords
silver
paste
gum arabic
nitrate
copper
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
GB1456238A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1456238A priority Critical patent/GB514792A/en
Publication of GB514792A publication Critical patent/GB514792A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

514,792. Catalysts. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.). May 16, 1938, No. 14562. [Class 1 (i)] [Also in Group IV] Catalysts for the production of olefine oxides from olefines and oxygen are made by. shaping a mixture of finely-divided silver with an organic adhesive. The silver may be activated by a small admixture of gold, copper. iron or manganese. The silver may be prepared by reducing silver solutions as described in Specification 500,382. Suitable binding-agents are solutions of gum arabic, dextrin, sugar, cellulose esters .or ethers or polyvinyl compounds. A paste of silver and organic adhesive may be pressed through holes in a plate, dried and heated in a current of air preferably with the addition of steam, at 200-500‹C., or this pretreatment may be omitted, since the adhesive is destroyed by the oxygen of the reaction mixture. In examples (1) solutions of silver nitrate, copper nitrate, gold chloride and potassium hydroxide are stirred into water so that the potash is always in excess and a solution of formaldehyde and potassium hydroxide is added, the precipitate being made into a paste with gum arabic and shaped : (3) fine silver powder containing a little copper is made into a paste with gum arabic and shaped ; (4) a solution containing silver nitrate, gold chloride and copper nitrate is reduced with hydrazine hydrate, the precipitate being washed with dilute nitric acid, dried, and made into a paste with a cellulose acetate solution in alkyl acetates; (5) silver nitrate solution is precipitated with potassium bicarbonate, reduced with formaldehyde and made into a paste with gum arabic.
GB1456238A 1938-05-16 1938-05-16 Improvements in the manufacture and production of olefine oxides Expired GB514792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1456238A GB514792A (en) 1938-05-16 1938-05-16 Improvements in the manufacture and production of olefine oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1456238A GB514792A (en) 1938-05-16 1938-05-16 Improvements in the manufacture and production of olefine oxides

Publications (1)

Publication Number Publication Date
GB514792A true GB514792A (en) 1939-11-17

Family

ID=10043457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1456238A Expired GB514792A (en) 1938-05-16 1938-05-16 Improvements in the manufacture and production of olefine oxides

Country Status (1)

Country Link
GB (1) GB514792A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424084A (en) * 1943-08-11 1947-07-15 Shell Dev Process for the manufacture of olefin oxides
US2424086A (en) * 1943-08-11 1947-07-15 Shell Dev Production of olefin oxides
US3423328A (en) * 1965-11-22 1969-01-21 Engelhard Ind Inc Silver-barium catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424084A (en) * 1943-08-11 1947-07-15 Shell Dev Process for the manufacture of olefin oxides
US2424086A (en) * 1943-08-11 1947-07-15 Shell Dev Production of olefin oxides
US3423328A (en) * 1965-11-22 1969-01-21 Engelhard Ind Inc Silver-barium catalyst

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