ES8404201A1 - Procedimiento para mejorar la actividad de catalizadores de plata con soporte, gastados - Google Patents

Procedimiento para mejorar la actividad de catalizadores de plata con soporte, gastados

Info

Publication number
ES8404201A1
ES8404201A1 ES524759A ES524759A ES8404201A1 ES 8404201 A1 ES8404201 A1 ES 8404201A1 ES 524759 A ES524759 A ES 524759A ES 524759 A ES524759 A ES 524759A ES 8404201 A1 ES8404201 A1 ES 8404201A1
Authority
ES
Spain
Prior art keywords
catalyst
activity
water
supported silver
enhancing
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
ES524759A
Other languages
English (en)
Other versions
ES524759A0 (es
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.)
Hoechst AG
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 ES8404201A1 publication Critical patent/ES8404201A1/es
Publication of ES524759A0 publication Critical patent/ES524759A0/es
Granted 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
    • 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
    • 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
    • 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)

Abstract

COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PREPARA UNA SOLUCION FORMADA POR AGUA, POR UN DISOLVENTE ORGANICO MISCIBLE CON AGUA, Y POR LO MENOS POR UN COMPUESTO DE CESIO, UN COMPUESTO DE RUBIDIO O UN COMPUESTO DE CESIO Y RUBIDIO, EN UNA CANTIDAD COMPRENDIDA ENTRE 50 Y 1.000 MG DE CESIO, DE RUBIDIO O DE CESIO Y RUBIDIO, POR KILOGRAMO DE SOLUCION; SEGUNDA, EL CATALIZADOR GASTADO SE IMPREGNA CON LA SOLUCION PREPARADA A UNA TEMPERATURA COMPRENDIDA ENTRE 60 Y 200 GRADOS; Y POR ULTIMO, EL CATALIZADOR UNA VEZ IMPREGNADO SE SOMETE A UN PROCESO DE SECADO.
ES524759A 1982-08-07 1983-08-05 Procedimiento para mejorar la actividad de catalizadores de plata con soporte, gastados Granted ES524759A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3229541A DE3229541A1 (de) 1982-08-07 1982-08-07 Verfahren zur verbesserung der wirksamkeit von gebrauchten silber-traegerkatalysatoren

Publications (2)

Publication Number Publication Date
ES8404201A1 true ES8404201A1 (es) 1984-05-01
ES524759A0 ES524759A0 (es) 1984-05-01

Family

ID=6170386

Family Applications (1)

Application Number Title Priority Date Filing Date
ES524759A Granted ES524759A0 (es) 1982-08-07 1983-08-05 Procedimiento para mejorar la actividad de catalizadores de plata con soporte, gastados

Country Status (8)

Country Link
US (1) US4478948A (es)
EP (1) EP0101008B1 (es)
JP (1) JPS5946134A (es)
AU (1) AU558162B2 (es)
BR (1) BR8304218A (es)
CA (1) CA1204424A (es)
DE (2) DE3229541A1 (es)
ES (1) ES524759A0 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799036A (en) * 1980-12-11 1982-06-19 Omron Tateisi Electronics Co Two-wire type electronic switch
JPS6110570A (ja) * 1984-06-25 1986-01-18 Mitsui Toatsu Chem Inc エチレンオキシドの製造方法
DE3426699A1 (de) * 1984-07-20 1986-01-23 Hoechst Ag, 6230 Frankfurt Verfahren zur verbesserung der wirksamkeit von silbertraegerkatalysatoren
FR2619391B1 (fr) * 1987-08-14 1990-01-12 Eurecat Europ Retrait Catalys Procede de reduction d'un catalyseur de raffinage avant sa mise en oeuvre
US5438028A (en) * 1993-10-15 1995-08-01 Texaco Inc. Method of enhancing finished catalysts
US5451268A (en) * 1993-11-15 1995-09-19 Shepherd; Samuel L. Process for the removal of sulfur from silver
BRPI0920425A2 (pt) 2008-10-08 2015-08-04 Basf Se Processo continuo para produzir um óxido de alquileno.
GB201217541D0 (en) * 2012-10-01 2012-11-14 Lucite Int Uk Ltd A process for production of a silica-supported alkali metal catalyst

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012425A (en) * 1972-01-07 1977-03-15 Shell Oil Company Ethylene oxide process
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.
GB1574426A (en) * 1976-03-25 1980-09-10 Shell Int Research Process for preparing modified silver catalysts
DE2636680C3 (de) * 1976-08-14 1979-04-05 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wirksamkeit von Silber-Trägerkatalysatoren
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
DE2740480B2 (de) * 1977-09-08 1979-07-05 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wirksamkeit von Silber-Trägerkatalysatoren
GB1591308A (en) * 1977-10-25 1981-06-17 Ici Ltd Regeneration of silver catalysts for the production of olefine oxides
DE2861030D1 (en) * 1977-11-19 1981-11-26 Basf Ag Process for preparing an ethylene oxide catalyst
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
US4342667A (en) * 1979-03-26 1982-08-03 The Halcon Sd Group, Inc. Process for preparing a silver catalyst
DE2938245A1 (de) * 1979-09-21 1981-04-09 Hoechst Ag, 6000 Frankfurt Verfahren zur verbesserung der wirksamkeit von silber-traegerkatalysatoren

Also Published As

Publication number Publication date
CA1204424A (en) 1986-05-13
BR8304218A (pt) 1984-03-13
AU1764983A (en) 1984-02-09
EP0101008B1 (de) 1988-06-01
AU558162B2 (en) 1987-01-22
JPS5946134A (ja) 1984-03-15
JPH0450856B2 (es) 1992-08-17
EP0101008A3 (en) 1986-01-08
DE3376800D1 (en) 1988-07-07
ES524759A0 (es) 1984-05-01
US4478948A (en) 1984-10-23
EP0101008A2 (de) 1984-02-22
DE3229541A1 (de) 1984-02-09

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970612