GB881485A - Process for the regeneration of adsorptively active aluminium oxide - Google Patents

Process for the regeneration of adsorptively active aluminium oxide

Info

Publication number
GB881485A
GB881485A GB933860A GB933860A GB881485A GB 881485 A GB881485 A GB 881485A GB 933860 A GB933860 A GB 933860A GB 933860 A GB933860 A GB 933860A GB 881485 A GB881485 A GB 881485A
Authority
GB
United Kingdom
Prior art keywords
aluminium oxide
combustion
zone
heated
adsorptively
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
GB933860A
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.)
CAMAG CHEMIE
Original Assignee
CAMAG CHEMIE
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 CAMAG CHEMIE filed Critical CAMAG CHEMIE
Publication of GB881485A publication Critical patent/GB881485A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

In a process for the regeneration of adsorptively active g -aluminium oxide having 1 to 10% by weight of organic substance (e.g. mineral oil) attached to its surfaces, the aluminium oxide falls from a hopper 1 through a hot regenerating zone in a column 4 in which the attached substances are burnt off by air oxygen supplied through a nozzle 8, the length of the zone and the duration of combustion being so short (e.g. 1 to 2 <PICT:0881485/III/1> metres and less than 2 seconds respectively) that the heat of combustion passes to the ambient gas phase and the aluminium oxide is not heated above the temperature at which it becomes adsorptively inactive a -aluminium oxide. The zone is heated by electric elements 9, but the current supply is reduced or switched off after some time as sufficient heat is provided by combustion of the organic substance, the column 4 being surrounded by insulation 12. The air or oxygen may be pre-heated by passing it through a pipe 10 and over heaters 9. Gases pass off through a vent 6 and regenerated aluminium oxide is discharged by an outlet 7.
GB933860A 1959-06-13 1960-03-16 Process for the regeneration of adsorptively active aluminium oxide Expired GB881485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT438459A AT211456B (en) 1959-06-13 1959-06-13 Process for the regeneration of fine-grained adsorptive aluminum oxide

Publications (1)

Publication Number Publication Date
GB881485A true GB881485A (en) 1961-11-01

Family

ID=3563272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB933860A Expired GB881485A (en) 1959-06-13 1960-03-16 Process for the regeneration of adsorptively active aluminium oxide

Country Status (5)

Country Link
AT (1) AT211456B (en)
BE (1) BE590753A (en)
CH (1) CH378299A (en)
GB (1) GB881485A (en)
NL (1) NL251687A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036563A1 (en) * 1995-05-17 1996-11-21 Aluchem, Inc. Method and apparatus for making high-grade alumina from low-grade aluminum oxide fines
PL424671A1 (en) * 2018-02-26 2019-09-09 Mazowieckie Centrum Recyklingu Spółka Z Ograniczoną Odpowiedzialnością Method for reworking of spent catalyst and the device for application of this method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036563A1 (en) * 1995-05-17 1996-11-21 Aluchem, Inc. Method and apparatus for making high-grade alumina from low-grade aluminum oxide fines
PL424671A1 (en) * 2018-02-26 2019-09-09 Mazowieckie Centrum Recyklingu Spółka Z Ograniczoną Odpowiedzialnością Method for reworking of spent catalyst and the device for application of this method

Also Published As

Publication number Publication date
BE590753A (en) 1960-09-01
AT211456B (en) 1960-10-10
CH378299A (en) 1964-06-15
NL251687A (en)

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