GB678059A - Improved method of regenerating silica-magnesia catalysts - Google Patents

Improved method of regenerating silica-magnesia catalysts

Info

Publication number
GB678059A
GB678059A GB16964/50A GB1696450A GB678059A GB 678059 A GB678059 A GB 678059A GB 16964/50 A GB16964/50 A GB 16964/50A GB 1696450 A GB1696450 A GB 1696450A GB 678059 A GB678059 A GB 678059A
Authority
GB
United Kingdom
Prior art keywords
catalyst
hydration
regenerated
water
per cent
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
GB16964/50A
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 GB678059A publication Critical patent/GB678059A/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

Spent silica-magnesia gel catalysts having carbonaceous deposits thereon resulting from the cracking of petroleum are regenerated by maintaining the catalyst in contact with liquid water at a temperature slightly below the boiling point of water to effect hydration of the catalyst such that the amount of water retained by the hydrated catalyst is from 5 to 50 per cent by weight thereof. The time of treatment may be from one-half to two hours. The carbon content of the catalyst is preferably kept below 0.75 per cent such as by dividing the spent catalyst leaving the reaction zone into two portions, the smaller portion being regenerated by hydration alone, whilst the larger portion is regenerated according to the parent Specification, wherein in addition to hydration, a burning step is included.
GB16964/50A 1950-03-27 1950-07-06 Improved method of regenerating silica-magnesia catalysts Expired GB678059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US678059XA 1950-03-27 1950-03-27

Publications (1)

Publication Number Publication Date
GB678059A true GB678059A (en) 1952-08-27

Family

ID=22078527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16964/50A Expired GB678059A (en) 1950-03-27 1950-07-06 Improved method of regenerating silica-magnesia catalysts

Country Status (1)

Country Link
GB (1) GB678059A (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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