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GB1407978A - Production of cermaic microspheres - Google Patents

Production of cermaic microspheres

Info

Publication number
GB1407978A
GB1407978A GB4537371A GB4537371A GB1407978A GB 1407978 A GB1407978 A GB 1407978A GB 4537371 A GB4537371 A GB 4537371A GB 4537371 A GB4537371 A GB 4537371A GB 1407978 A GB1407978 A GB 1407978A
Authority
GB
United Kingdom
Prior art keywords
microspheres
oven
microwave
flow
sept
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
GB4537371A
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB4537371A priority Critical patent/GB1407978A/en
Publication of GB1407978A publication Critical patent/GB1407978A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

1407978 Producing ceramic microspheres UNITED KINGDOM ATOMIC ENERGY AUTHORITY 29 Sept 1972 [29 Sept 1971] 45373/71 Heading F4G In the production of nuclear fuels, catalysts, or ceramics, gel microspheres are formed by gelation, are dried without surface pitting or cracking by subjecting them to microwave radiation (e.g. at 2450 MHz), and are sintered to produce ceramic microspheres. The microspheres are placed in an open container which is then located in an oven enclosure to which microwave energy is transmitted via a wave guide from a magnetron. A flow of air is maintained through the oven to prevent condensation. The microwaves may be applied by a helical coil wound around a column of moving material. The microspheres may be formed with a flow of water into monolayers, on the tiers of a stand, or a belt passing through a microwave tunnel. The microspheres may be tumbled while exposed to microwave radiation, in a rotary oven, or fluidized using a gas flow, or otherwise agitated.
GB4537371A 1971-09-29 1971-09-29 Production of cermaic microspheres Expired GB1407978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4537371A GB1407978A (en) 1971-09-29 1971-09-29 Production of cermaic microspheres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4537371A GB1407978A (en) 1971-09-29 1971-09-29 Production of cermaic microspheres

Publications (1)

Publication Number Publication Date
GB1407978A true GB1407978A (en) 1975-10-01

Family

ID=10436976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4537371A Expired GB1407978A (en) 1971-09-29 1971-09-29 Production of cermaic microspheres

Country Status (1)

Country Link
GB (1) GB1407978A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048360A1 (en) * 1980-09-23 1982-03-31 Gesellschaft zur Förderung der industrieorientierten Forschung an den Schweizerischen Hochschulen und weiteren Institutionen Process and device for preparing microspheres by internal gelation of mixed-feed drops
US4364859A (en) * 1978-03-13 1982-12-21 Doryokuro Kakunenryo Kaihatsu Jigyodan Method for producing oxide powder
US4481134A (en) * 1982-01-29 1984-11-06 The United States Of America As Represented By The United States Department Of Energy Method for forming microspheres for encapsulation of nuclear waste
US4490287A (en) * 1976-07-29 1984-12-25 United Kingdom Atomic Energy Authority Treatment of substances
US5222544A (en) * 1991-08-12 1993-06-29 Ford Motor Company Bonding casting cores
US5324485A (en) * 1992-08-12 1994-06-28 Martin Marietta Energy Systems, Inc. Microwave applicator for in-drum processing of radioactive waste slurry

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490287A (en) * 1976-07-29 1984-12-25 United Kingdom Atomic Energy Authority Treatment of substances
US4364859A (en) * 1978-03-13 1982-12-21 Doryokuro Kakunenryo Kaihatsu Jigyodan Method for producing oxide powder
EP0048360A1 (en) * 1980-09-23 1982-03-31 Gesellschaft zur Förderung der industrieorientierten Forschung an den Schweizerischen Hochschulen und weiteren Institutionen Process and device for preparing microspheres by internal gelation of mixed-feed drops
US4481134A (en) * 1982-01-29 1984-11-06 The United States Of America As Represented By The United States Department Of Energy Method for forming microspheres for encapsulation of nuclear waste
US5222544A (en) * 1991-08-12 1993-06-29 Ford Motor Company Bonding casting cores
US5324485A (en) * 1992-08-12 1994-06-28 Martin Marietta Energy Systems, Inc. Microwave applicator for in-drum processing of radioactive waste slurry

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee