RO100109B1 - Catalizator de argint utilizat la obtinerea oxidului de etilena - Google Patents

Catalizator de argint utilizat la obtinerea oxidului de etilena

Info

Publication number
RO100109B1
RO100109B1 RO130214A RO13021487A RO100109B1 RO 100109 B1 RO100109 B1 RO 100109B1 RO 130214 A RO130214 A RO 130214A RO 13021487 A RO13021487 A RO 13021487A RO 100109 B1 RO100109 B1 RO 100109B1
Authority
RO
Romania
Prior art keywords
silver
sub
oxide
ethilen
obtention
Prior art date
Application number
RO130214A
Other languages
English (en)
Other versions
RO100109A2 (ro
Inventor
Ann Marie Lauritzen
Original Assignee
Shell Internationale Research Maatschappy B.V.
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 Shell Internationale Research Maatschappy B.V. filed Critical Shell Internationale Research Maatschappy B.V.
Publication of RO100109B1 publication Critical patent/RO100109B1/ro
Publication of RO100109A2 publication Critical patent/RO100109A2/ro

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
    • B01J23/38—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
    • B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/688—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with manganese, technetium or rhenium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)

Abstract

Inventia se refera la un catalizator de argint, folosit la obtinerea oxidului de etilena prin oxidarea etilenei cu oxigen, care contine, pe un suport de alumina, argint, un metal alcalin si eventual un metal cu rol dopant, caracterizat prin aceea ca, în scopul cresterii activitatii si selectivitatii, contine pe un suport de alfa-AL<sub>2</sub>O<sub>3</sub>, având o suprafata specifica cuprinsa între 0,01 si 10 m<sup>3</sup>/g, de preferinta 0,1 ... 3 m<sup>2</sup>/g, 1 ... 30 % în greutate, de preferinta 5 ... 20 % în greutate argint 0,01 ... 15, de preferinta 0,2 ... 5 mmoli/kg de catalizator reniu, 10 ... 3000 parti/milion, de preferinta 50 ... 1000 parti/milion, dintr-un metal ales dintre, potasiu, sodiu, rubidiu, cesiu, litiu, molibden, wolfram, crom, mangan, vanadiu si 0,2 ... 5 milimoli/kg sulf, raportul dintre reniu si argint fiind mai mic de 1.
RO130214A 1986-10-31 1987-10-28 Catalizator de argint utilizat la obtinerea oxidului de etilena RO100109A2 (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/926,025 US4766105A (en) 1986-10-31 1986-10-31 Ethylene oxide catalyst and process for preparing the catalyst

Publications (2)

Publication Number Publication Date
RO100109B1 true RO100109B1 (ro) 1991-11-30
RO100109A2 RO100109A2 (ro) 1991-12-02

Family

ID=25452626

Family Applications (1)

Application Number Title Priority Date Filing Date
RO130214A RO100109A2 (ro) 1986-10-31 1987-10-28 Catalizator de argint utilizat la obtinerea oxidului de etilena

Country Status (3)

Country Link
US (1) US4766105A (ro)
RO (1) RO100109A2 (ro)
ZA (1) ZA878013B (ro)

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