GB1150422A - Palladium Catalysts - Google Patents

Palladium Catalysts

Info

Publication number
GB1150422A
GB1150422A GB21657/66A GB2165766A GB1150422A GB 1150422 A GB1150422 A GB 1150422A GB 21657/66 A GB21657/66 A GB 21657/66A GB 2165766 A GB2165766 A GB 2165766A GB 1150422 A GB1150422 A GB 1150422A
Authority
GB
United Kingdom
Prior art keywords
catalyst
activity
palladium
formic acid
palladium catalysts
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
GB21657/66A
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.)
Standard Oil Co
Original Assignee
Standard Oil Co
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 Standard Oil Co filed Critical Standard Oil Co
Publication of GB1150422A publication Critical patent/GB1150422A/en
Expired 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,150,422. Controlling activity of palladium catalyst. STANDARD OIL CO. 16 May, 1966 [17 May, 1965], No. 21657/66. Heading B1E [Also in Division C2] The activity of a palladium reducing catalyst is controlled by treating the catalyst with liquid formic acid at a temperature of at least 100‹F., preferably at its boiling point. The activity of fresh catalyst is reduced and that of spent catalyst at least partially restored. The formic acid is then removed by evaporation or distillation. The catalyst may contain 0.05% to 1 % by weight palladium supported on charcoal, and may be used in the purification of aromatic polycarboxylic acids, for example terephthalic acid; containing 4-carboxybenzaldehyde.
GB21657/66A 1965-05-17 1966-05-16 Palladium Catalysts Expired GB1150422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45650665A 1965-05-17 1965-05-17

Publications (1)

Publication Number Publication Date
GB1150422A true GB1150422A (en) 1969-04-30

Family

ID=23813034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21657/66A Expired GB1150422A (en) 1965-05-17 1966-05-16 Palladium Catalysts

Country Status (3)

Country Link
BE (1) BE681181A (en)
DE (1) DE1542489A1 (en)
GB (1) GB1150422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770425A1 (en) * 1995-10-27 1997-05-02 BP Chemicals Limited Activation and regeneration of hydrogenation catalysts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107986A1 (en) * 1991-03-13 1992-09-17 Henkel Kgaa METHOD FOR PRODUCING MALONIC ACID

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770425A1 (en) * 1995-10-27 1997-05-02 BP Chemicals Limited Activation and regeneration of hydrogenation catalysts

Also Published As

Publication number Publication date
DE1542489A1 (en) 1970-04-02
BE681181A (en) 1966-10-31

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Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired