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GB1367925A - Active aluminium oxide and process fof producing same - Google Patents

Active aluminium oxide and process fof producing same

Info

Publication number
GB1367925A
GB1367925A GB5622571A GB5622571A GB1367925A GB 1367925 A GB1367925 A GB 1367925A GB 5622571 A GB5622571 A GB 5622571A GB 5622571 A GB5622571 A GB 5622571A GB 1367925 A GB1367925 A GB 1367925A
Authority
GB
United Kingdom
Prior art keywords
zone
aluminium oxide
hydrangillite
reactor
stream
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
GB5622571A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1367925A publication Critical patent/GB1367925A/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
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • 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
    • 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
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • C01F7/021—After-treatment of oxides or hydroxides
    • C01F7/025—Granulation or agglomeration
    • 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
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • 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
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/70—Catalysts, in general, characterised by their form or physical properties characterised by their crystalline properties, e.g. semi-crystalline
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Catalysts (AREA)

Abstract

1367925 Dehydrating hydrangillite BAYER AG 1 Dec 1971 [5 Dec 1970] 56225/71 Heading C1A An active aluminium oxide which has a disturbed crystalline structure of X-aluminium oxide, a specific surface area of from 250 to 400 m<2>./g. according to BET, a residual water content of from 2 to 10% and a water absorption capacity at 50% relative atmospheric humidity of more than 10% is prepared by heating aluminium hydroxide (hydrangillite) to a temperature of from 350‹ C. to 800‹ C. with a residence time of from 0À1 to 2 seconds in a zone of high turbulence in a stream of hot gas which enters the zone at a temperature of from 500‹ C. to 1200‹ C., the stream of hot gas having a rate of inflow into the zone of from 30 to 150 m/ second. The turbulent zone may be contained in a conical reactor in which hot gas is injected tangentially at the narrow end and passes along a spiral path through the reactor, a portion of the gas stream returning in the axial direction. The aluminium hydroxide (hydrangillite) may be dried in a fluidized bed prior to entering the turbulent zone or may be injected directly into the return gas flow in the reactor.
GB5622571A 1970-12-05 1971-12-01 Active aluminium oxide and process fof producing same Expired GB1367925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2059946A DE2059946C3 (en) 1970-12-05 1970-12-05 Process for the production of highly active aluminum oxide

Publications (1)

Publication Number Publication Date
GB1367925A true GB1367925A (en) 1974-09-25

Family

ID=5790104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5622571A Expired GB1367925A (en) 1970-12-05 1971-12-01 Active aluminium oxide and process fof producing same

Country Status (7)

Country Link
JP (1) JPS5711847B1 (en)
DE (1) DE2059946C3 (en)
ES (1) ES397692A1 (en)
FR (1) FR2116538B1 (en)
GB (1) GB1367925A (en)
IT (1) IT945300B (en)
NL (1) NL7116596A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286353A (en) * 1991-06-04 1994-02-15 Vaw Aluminium A.G. Electrolysis cell and method for the extraction of aluminum
EA018604B1 (en) * 2011-05-31 2013-09-30 Елена Арсеньевна Петрова Method for producing chloro-containing aluminium salts and process line therefor
CN113461408A (en) * 2021-07-22 2021-10-01 杭州智华杰科技有限公司 Method for improving strength of activated alumina balls

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633599A1 (en) * 1976-07-27 1978-02-02 Bayer Ag PROCESS FOR THE PRODUCTION OF GRANULATES FROM ACTIVE ALUMINUM OXIDE
EP0176476A1 (en) * 1984-09-14 1986-04-02 Schweizerische Aluminium Ag Process for the preparation of light, highly activated dispersed aluminium oxide, shaped products of light aluminium oxide and process for the preparation of the shaped products
DE4118564A1 (en) * 1991-06-06 1992-12-17 Vaw Ver Aluminium Werke Ag PART CRYSTALLINE TRANSITIONAL ALUMINUM OXIDES, METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF FOR THE PRODUCTION OF MOLDED BODIES THAT ARE MAINLY FROM GAMMA-AL (DOWN ARROW) 2 (DOWN ARROW) O (DOWN ARROW) 3

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286353A (en) * 1991-06-04 1994-02-15 Vaw Aluminium A.G. Electrolysis cell and method for the extraction of aluminum
EA018604B1 (en) * 2011-05-31 2013-09-30 Елена Арсеньевна Петрова Method for producing chloro-containing aluminium salts and process line therefor
CN113461408A (en) * 2021-07-22 2021-10-01 杭州智华杰科技有限公司 Method for improving strength of activated alumina balls

Also Published As

Publication number Publication date
DE2059946C3 (en) 1975-07-10
ES397692A1 (en) 1974-05-16
FR2116538B1 (en) 1976-03-26
JPS5711847B1 (en) 1982-03-06
FR2116538A1 (en) 1972-07-13
DE2059946A1 (en) 1972-06-15
NL7116596A (en) 1972-06-07
DE2059946B2 (en) 1974-11-21
IT945300B (en) 1973-05-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years