ZA762463B - Process for reactivating silver catalysts used in the manufacture of ethylene oxide by direct oxidation - Google Patents

Process for reactivating silver catalysts used in the manufacture of ethylene oxide by direct oxidation

Info

Publication number
ZA762463B
ZA762463B ZA762463A ZA762463A ZA762463B ZA 762463 B ZA762463 B ZA 762463B ZA 762463 A ZA762463 A ZA 762463A ZA 762463 A ZA762463 A ZA 762463A ZA 762463 B ZA762463 B ZA 762463B
Authority
ZA
South Africa
Prior art keywords
reactivating
manufacture
ethylene oxide
catalysts used
direct oxidation
Prior art date
Application number
ZA762463A
Other languages
English (en)
Inventor
S Mayer
J Alfranseder
S Rebsdat
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of ZA762463B publication Critical patent/ZA762463B/xx

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
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
    • B01J38/485—Impregnating or reimpregnating with, or deposition of metal compounds or catalytically active elements
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
ZA762463A 1975-05-02 1976-04-26 Process for reactivating silver catalysts used in the manufacture of ethylene oxide by direct oxidation ZA762463B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752519599 DE2519599C2 (de) 1975-05-02 1975-05-02 Verfahren zum reaktivieren von gebrauchten silber-traegerkatalysatoren

Publications (1)

Publication Number Publication Date
ZA762463B true ZA762463B (en) 1977-04-27

Family

ID=5945588

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA762463A ZA762463B (en) 1975-05-02 1976-04-26 Process for reactivating silver catalysts used in the manufacture of ethylene oxide by direct oxidation

Country Status (4)

Country Link
BE (1) BE841408A (fr)
DE (1) DE2519599C2 (fr)
SU (1) SU643071A3 (fr)
ZA (1) ZA762463B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569974A (en) * 1976-03-05 1980-06-25 Ici Ltd Restoration of selectivity to catalysts used in the production of olefine oxides
GB1575810A (en) 1976-10-21 1980-10-01 Shell Int Research Process for the performance of silver catalysts
DE2649359C3 (de) * 1976-10-29 1979-07-26 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wirksamkeit von gebrauchten Silber-Trägerkatalysatoren
EP0002045B1 (fr) 1977-11-19 1981-09-02 BASF Aktiengesellschaft Procédé de préparation d'un catalyseur pour la production de l'oxyde d'éthylène
DE2940480A1 (de) * 1978-10-05 1980-04-17 Mitsui Toatsu Chemicals Verfahren zur reaktivierung von silberkatalysatoren, die bei der herstellung von aethylenoxid durch direkte katalytische gasphasenoxidation von aethylen verwendet worden sind
DE2904919A1 (de) * 1979-02-09 1980-08-21 Basf Ag Verfahren zur herstellung und regenerierung von traegerkatalysatoren sowie deren verwendung fuer die herstellung von aethylenoxid
DE2916887C2 (de) * 1979-04-26 1981-12-17 Chemische Werke Hüls AG, 4370 Marl Verfahren zum Aktivieren oder Reaktivieren von Silber-Träger-Katalysatoren
DE2936036A1 (de) * 1979-09-06 1981-04-02 EC Erdölchemie GmbH, 5000 Köln Verfahren zur herstellung von ethylenoxid
CN102177145B (zh) 2008-10-08 2014-07-30 巴斯夫欧洲公司 生产烯化氧的方法

Also Published As

Publication number Publication date
DE2519599B1 (de) 1976-07-01
BE841408A (fr) 1976-11-03
DE2519599C2 (de) 1977-02-17
SU643071A3 (ru) 1979-01-15

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