GB664897A - Method of regenerating silica-magnesia catalysts - Google Patents

Method of regenerating silica-magnesia catalysts

Info

Publication number
GB664897A
GB664897A GB30191/49A GB3019149A GB664897A GB 664897 A GB664897 A GB 664897A GB 30191/49 A GB30191/49 A GB 30191/49A GB 3019149 A GB3019149 A GB 3019149A GB 664897 A GB664897 A GB 664897A
Authority
GB
United Kingdom
Prior art keywords
catalyst
hydrated
withdrawn
recycled
burning
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
GB30191/49A
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.)
Davison Chemical Corp
Original Assignee
Davison Chemical Corp
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 Davison Chemical Corp filed Critical Davison Chemical Corp
Publication of GB664897A publication Critical patent/GB664897A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/20Regeneration or reactivation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Spent silica-magnesia catalyst having a carbonaceous deposit thereon is, before or after the burning off of such deposits, hydrated with liquid water under suitable conditions of temperature and pressure, preferably at or below 100 DEG C. at atmospheric pressure, such that the amount of water retained by the hydrated catalyst is between 5 and 50 per cent by weight of the catalyst. The hydration may be applied to part only of the catalyst withdrawn for example from a hydrocarbon cracking reactor, the thus hydrated catalyst mixed with the main body of withdrawn catalyst and the whole subjected to conventional burning treatment. Alternatively, subsequent to the burning treatment on the whole of the withdrawn catalyst, part is recycled to the reactor directly whilst a portion is hydrated before being recycled.
GB30191/49A 1949-09-09 1949-11-24 Method of regenerating silica-magnesia catalysts Expired GB664897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US664897XA 1949-09-09 1949-09-09

Publications (1)

Publication Number Publication Date
GB664897A true GB664897A (en) 1952-01-16

Family

ID=22069821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30191/49A Expired GB664897A (en) 1949-09-09 1949-11-24 Method of regenerating silica-magnesia catalysts

Country Status (1)

Country Link
GB (1) GB664897A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754272A (en) * 1950-06-13 1956-07-10 Sinclair Refining Co Regeneration of silica-magnesia cracking catalysts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754272A (en) * 1950-06-13 1956-07-10 Sinclair Refining Co Regeneration of silica-magnesia cracking catalysts

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