BE860353A - Procede pour ameliorer l'activite de catalyseurs a l'argent ayant deja servi - Google Patents

Procede pour ameliorer l'activite de catalyseurs a l'argent ayant deja servi

Info

Publication number
BE860353A
BE860353A BE182243A BE182243A BE860353A BE 860353 A BE860353 A BE 860353A BE 182243 A BE182243 A BE 182243A BE 182243 A BE182243 A BE 182243A BE 860353 A BE860353 A BE 860353A
Authority
BE
Belgium
Prior art keywords
catalyzers
money
activity
improving
already served
Prior art date
Application number
BE182243A
Other languages
English (en)
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 BE860353A publication Critical patent/BE860353A/fr

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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66—Silver or gold
    • 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
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
    • 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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Epoxy Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE182243A 1976-10-29 1977-10-31 Procede pour ameliorer l'activite de catalyseurs a l'argent ayant deja servi BE860353A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2649359A DE2649359C3 (de) 1976-10-29 1976-10-29 Verfahren zur Verbesserung der Wirksamkeit von gebrauchten Silber-Trägerkatalysatoren

Publications (1)

Publication Number Publication Date
BE860353A true BE860353A (fr) 1978-05-02

Family

ID=5991887

Family Applications (1)

Application Number Title Priority Date Filing Date
BE182243A BE860353A (fr) 1976-10-29 1977-10-31 Procede pour ameliorer l'activite de catalyseurs a l'argent ayant deja servi

Country Status (13)

Country Link
US (1) US4177169A (fr)
JP (1) JPS5944898B2 (fr)
AU (1) AU510768B2 (fr)
BE (1) BE860353A (fr)
BR (1) BR7707210A (fr)
CA (1) CA1093056A (fr)
DE (1) DE2649359C3 (fr)
ES (1) ES463432A1 (fr)
FR (1) FR2369275A1 (fr)
GB (1) GB1577438A (fr)
IT (1) IT1088157B (fr)
NL (1) NL179980C (fr)
SE (1) SE434804B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387751A (en) * 1978-02-10 1995-02-07 Imperial Chemical Industries Plc Production of olefine oxides
DE2936036A1 (de) * 1979-09-06 1981-04-02 EC Erdölchemie GmbH, 5000 Köln Verfahren zur herstellung von ethylenoxid
US4350616A (en) * 1980-07-03 1982-09-21 The Dow Chemical Company Method of making catalysts for the production of ethylene oxide
SE8203955L (sv) * 1981-07-17 1983-01-18 Northern Petro Chem Co Forfarande for avlegsnande av kalium fran anvenda etenoxidkatalysatorer?
US4419276A (en) * 1981-09-30 1983-12-06 Union Carbide Corporation Silver catalyst for the manufacture of ethylene oxide and a process for preparing the catalyst
US4760042A (en) * 1982-03-24 1988-07-26 Scientific Design Company, Inc. Process for preparing an alkali metal-promoted silver catalyst
US4406820A (en) * 1982-04-02 1983-09-27 Internorth, Inc. Controlled addition of promoters to ethylene oxide catalysts
US4774222A (en) * 1982-06-16 1988-09-27 Scientific Design Company, Inc. Catalyst for oxidation of ethylene to ethylene oxide and process for preparing the catalyst
DE3229541A1 (de) * 1982-08-07 1984-02-09 Hoechst Ag, 6230 Frankfurt Verfahren zur verbesserung der wirksamkeit von gebrauchten silber-traegerkatalysatoren
US4864042A (en) * 1984-05-14 1989-09-05 Scientific Design Company, Inc. Process for preparing silver catalysts
US4663303A (en) * 1986-02-24 1987-05-05 The Halcon Sd Group, Inc. Process for preparing silver catalysts
US5008413A (en) * 1989-10-23 1991-04-16 Scientific Design Company, Inc. Catalyst for oxidation of ethylene to ethylene oxide
EP0730903A4 (fr) * 1993-11-23 1997-03-25 Boreskova Inst Kataliza Sibir Compose poreux
CN102177145B (zh) 2008-10-08 2014-07-30 巴斯夫欧洲公司 生产烯化氧的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES447348A1 (es) * 1975-05-02 1977-07-01 Hoechst Ag Procedimiento para la reactivacion de catalizadores de platausados para obtener oxido de etileno de acuerdo con el pro- cedimiento de oxidacion directa.
DE2519599C2 (de) * 1975-05-02 1977-02-17 Hoechst Ag Verfahren zum reaktivieren von gebrauchten silber-traegerkatalysatoren
GB1574426A (en) * 1976-03-25 1980-09-10 Shell Int Research Process for preparing modified silver catalysts
FR2362846A1 (fr) * 1976-08-26 1978-03-24 Naphtachimie Sa Regeneration des catalyseurs de fabrication d'oxyde d'ethylene
DE2740480B2 (de) * 1977-09-08 1979-07-05 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wirksamkeit von Silber-Trägerkatalysatoren

Also Published As

Publication number Publication date
ES463432A1 (es) 1978-07-01
SE434804B (sv) 1984-08-20
US4177169A (en) 1979-12-04
GB1577438A (en) 1980-10-22
JPS5388682A (en) 1978-08-04
DE2649359B2 (fr) 1978-11-30
FR2369275A1 (fr) 1978-05-26
CA1093056A (fr) 1981-01-06
IT1088157B (it) 1985-06-10
FR2369275B1 (fr) 1982-05-28
BR7707210A (pt) 1978-07-25
NL7711653A (nl) 1978-05-03
AU3014077A (en) 1979-05-03
NL179980C (nl) 1986-12-16
DE2649359C3 (de) 1979-07-26
SE7712150L (sv) 1978-04-30
DE2649359A1 (de) 1978-05-03
AU510768B2 (en) 1980-07-10
JPS5944898B2 (ja) 1984-11-01
NL179980B (nl) 1986-07-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: HOECHST A.G.

Effective date: 19901031