GB976170A - Method for the removal of impurities from catalysts - Google Patents

Method for the removal of impurities from catalysts

Info

Publication number
GB976170A
GB976170A GB4768962A GB4768962A GB976170A GB 976170 A GB976170 A GB 976170A GB 4768962 A GB4768962 A GB 4768962A GB 4768962 A GB4768962 A GB 4768962A GB 976170 A GB976170 A GB 976170A
Authority
GB
United Kingdom
Prior art keywords
catalyst
forming
contacting
hydrogen
gas
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
GB4768962A
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.)
Atlantic Richfield Co
Original Assignee
Atlantic Refining 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 Atlantic Refining Co filed Critical Atlantic Refining Co
Publication of GB976170A publication Critical patent/GB976170A/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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/20—Regeneration or reactivation

Landscapes

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

Abstract

A method for the treatment of a SiO2-Al2O3 cracking catalyst which has become contaminated with cake-forming and gas-forming metallic impurities during use to improve the hydrocarbon cracking characteristics of the catalyst comprises (a) contacting the contaminated catalyst at a temperature ranging from 900-1075 DEG F. with a non-oxidizing gas containing free hydrogen, (b) contacting the hydrogen-treated catalyst with a gas containing free oxygen, (c) contacting the oxygen-treated catalyst with a cation exchange resin in the hydrogen cycle in an aqueous medium at a pH of from 2-4,5 such that the cake-forming and gas-forming metal contaminants are removed from the catalyst while the stability of the catalyst is substantially maintained, (d) separating the contacted catalyst from the resin, and (e) drying the catalyst. Examples are given.
GB4768962A 1961-12-21 1962-12-18 Method for the removal of impurities from catalysts Expired GB976170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16125661A 1961-12-21 1961-12-21

Publications (1)

Publication Number Publication Date
GB976170A true GB976170A (en) 1964-11-25

Family

ID=22580469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4768962A Expired GB976170A (en) 1961-12-21 1962-12-18 Method for the removal of impurities from catalysts

Country Status (1)

Country Link
GB (1) GB976170A (en)

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