NL7714522A - Shaped alumina particles for catalysts - obtd. by passing an aq. rehydratable alumina slurry through a heated shaping medium - Google Patents

Shaped alumina particles for catalysts - obtd. by passing an aq. rehydratable alumina slurry through a heated shaping medium

Info

Publication number
NL7714522A
NL7714522A NL7714522A NL7714522A NL7714522A NL 7714522 A NL7714522 A NL 7714522A NL 7714522 A NL7714522 A NL 7714522A NL 7714522 A NL7714522 A NL 7714522A NL 7714522 A NL7714522 A NL 7714522A
Authority
NL
Netherlands
Prior art keywords
alumina
obtd
particles
catalysts
medium
Prior art date
Application number
NL7714522A
Other languages
Dutch (nl)
Other versions
NL188983B (en
NL188983C (en
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to NL7714522A priority Critical patent/NL188983C/en
Publication of NL7714522A publication Critical patent/NL7714522A/en
Publication of NL188983B publication Critical patent/NL188983B/en
Application granted granted Critical
Publication of NL188983C publication Critical patent/NL188983C/en

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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • 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

Landscapes

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

Abstract

Shaped alumina particles are obtd. by introducing an aq. slurry contg. a substantial portion of rehydratable alumina to a shaping medium and applying heat to the medium to rehydrate and harden the alumina, followed by curing, drying and calcining the obtd. particles. The medium is (a) a water-immiscible phase into which droplets of the slurry are introduced and shaped by surface tension forces into a spherical beaded form; or (b) tubing which produces alumina in extrude form. The particles are suitable for catalysts and catalyst supports. No additional chemical reagents are required to effect hardening. Less energy is required compared with conventional methods. The prod. has high isotropicity, crush strength and porosity.
NL7714522A 1977-12-29 1977-12-29 METHOD FOR MANUFACTURING FORMED ALUMINUM OXIDE PARTICLES NL188983C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7714522A NL188983C (en) 1977-12-29 1977-12-29 METHOD FOR MANUFACTURING FORMED ALUMINUM OXIDE PARTICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7714522A NL188983C (en) 1977-12-29 1977-12-29 METHOD FOR MANUFACTURING FORMED ALUMINUM OXIDE PARTICLES

Publications (3)

Publication Number Publication Date
NL7714522A true NL7714522A (en) 1979-07-03
NL188983B NL188983B (en) 1992-07-01
NL188983C NL188983C (en) 1992-12-01

Family

ID=19829847

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7714522A NL188983C (en) 1977-12-29 1977-12-29 METHOD FOR MANUFACTURING FORMED ALUMINUM OXIDE PARTICLES

Country Status (1)

Country Link
NL (1) NL188983C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7705075A (en) * 1976-05-10 1977-11-14 American Cyanamid Co PROCESS FOR PREPARING ALUMINA EXTRUDATES, AND AS SUCH OBTAINED ALUMINA SHAPES.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7705075A (en) * 1976-05-10 1977-11-14 American Cyanamid Co PROCESS FOR PREPARING ALUMINA EXTRUDATES, AND AS SUCH OBTAINED ALUMINA SHAPES.

Also Published As

Publication number Publication date
NL188983B (en) 1992-07-01
NL188983C (en) 1992-12-01

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Legal Events

Date Code Title Description
BT A notification was added to the application dossier and made available to the public
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent

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