FR2362846A1 - Regeneration des catalyseurs de fabrication d'oxyde d'ethylene - Google Patents

Regeneration des catalyseurs de fabrication d'oxyde d'ethylene

Info

Publication number
FR2362846A1
FR2362846A1 FR7625857A FR7625857A FR2362846A1 FR 2362846 A1 FR2362846 A1 FR 2362846A1 FR 7625857 A FR7625857 A FR 7625857A FR 7625857 A FR7625857 A FR 7625857A FR 2362846 A1 FR2362846 A1 FR 2362846A1
Authority
FR
France
Prior art keywords
cpds
rubidium
soln
ethylene oxide
impregnating
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.)
Granted
Application number
FR7625857A
Other languages
English (en)
Other versions
FR2362846B1 (fr
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.)
Naphtachimie SA
Original Assignee
Naphtachimie SA
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 Naphtachimie SA filed Critical Naphtachimie SA
Priority to FR7625857A priority Critical patent/FR2362846A1/fr
Publication of FR2362846A1 publication Critical patent/FR2362846A1/fr
Application granted granted Critical
Publication of FR2362846B1 publication Critical patent/FR2362846B1/fr
Granted legal-status Critical Current

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
    • 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
    • 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
    • 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)

Abstract

L'invention concerne un procédé permettant d'améliorer les propriétés des catalyseurs à base d'argent utilisés dans la fabrication de l'oxyde d'éthylène. Le procédé consiste à imprégner un catalyseur par une solution de composés de césium et/ou de rubidium puis à le sécher, la quantité de composés de césium et/ou de rubidium ajoutée au catalyseur étant comprise entre 1/100 et 10 milliatomes-grammes de césium et/ou de rubidium par kg de catalyseur. Le procédé est particulièrement applicable à la régénération de catalyseurs usagés à base d'argent.
FR7625857A 1976-08-26 1976-08-26 Regeneration des catalyseurs de fabrication d'oxyde d'ethylene Granted FR2362846A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7625857A FR2362846A1 (fr) 1976-08-26 1976-08-26 Regeneration des catalyseurs de fabrication d'oxyde d'ethylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7625857A FR2362846A1 (fr) 1976-08-26 1976-08-26 Regeneration des catalyseurs de fabrication d'oxyde d'ethylene

Publications (2)

Publication Number Publication Date
FR2362846A1 true FR2362846A1 (fr) 1978-03-24
FR2362846B1 FR2362846B1 (fr) 1979-08-10

Family

ID=9177161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625857A Granted FR2362846A1 (fr) 1976-08-26 1976-08-26 Regeneration des catalyseurs de fabrication d'oxyde d'ethylene

Country Status (1)

Country Link
FR (1) FR2362846A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369275A1 (fr) * 1976-10-29 1978-05-26 Hoechst Ag Procede pour ameliorer l'activite de catalyseurs a l'argent ayant deja servi

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425439A (en) 1982-06-28 1984-01-10 Internorth, Inc. Upflow drying of regenerated ethylene oxide catalysts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962136A (en) * 1972-01-07 1976-06-08 Shell Oil Company Catalyst for production of ethylene oxide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962136A (en) * 1972-01-07 1976-06-08 Shell Oil Company Catalyst for production of ethylene oxide
US3962136B1 (fr) * 1972-01-07 1983-11-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369275A1 (fr) * 1976-10-29 1978-05-26 Hoechst Ag Procede pour ameliorer l'activite de catalyseurs a l'argent ayant deja servi

Also Published As

Publication number Publication date
FR2362846B1 (fr) 1979-08-10

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse