GB1408998A - Ceramic materials with open porosity - Google Patents

Ceramic materials with open porosity

Info

Publication number
GB1408998A
GB1408998A GB4023173A GB4023173A GB1408998A GB 1408998 A GB1408998 A GB 1408998A GB 4023173 A GB4023173 A GB 4023173A GB 4023173 A GB4023173 A GB 4023173A GB 1408998 A GB1408998 A GB 1408998A
Authority
GB
United Kingdom
Prior art keywords
core
ceramic
bodies
balls
produced
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
GB4023173A
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.)
Battelle Institut eV
Original Assignee
Battelle Institut eV
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
Priority claimed from DE19722242868 external-priority patent/DE2242868C3/en
Application filed by Battelle Institut eV filed Critical Battelle Institut eV
Publication of GB1408998A publication Critical patent/GB1408998A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof

Abstract

1408998 Moulding porous ceramic bodies BATTELLE-INSTITUT eV 24 Aug 1973 [31 Aug 1972] 40231/73 Heading B5A [Also in Division C1] Ceramic materials having an open pore structure are produced by a method comprising (a) providing a core defining the pores and interconnecting passages by sticking together spherical bodies, (b) casting a ceramic material around the core, (c) hardening the ceramic material and (d) removing the core. The ceramic material may be glass ceramic, glass, nitrides, oxides, silicides or borides. In one example, a core is produced by packing polystyrene balls into a hollow cylinder, and contacting the balls with a solvent so that their touching surfaces adhere to form "bridges" between the balls. A slip of a mixture of alumina and silica is cast around this core, the water removed from the slip to partially harden the ceramic mixture, and the polystyrene depolymerized by heating to remove the core structure. Further heating to 1600‹ C. provides final hardening of the ceramic mixture which reacts to form mullite. The core may alternatively be produced by sticking together pore forming bodies with adhesive or by sintering. Suitable materials for the bodies include soluble or low melting salts, plastics, wax, metals or alloys. The products are suitable for use as filters or gas heated radiant elements.
GB4023173A 1972-08-31 1973-08-24 Ceramic materials with open porosity Expired GB1408998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722242868 DE2242868C3 (en) 1972-08-31 Process for the production of ceramic stone materials for radiant wall heating elements or filter elements

Publications (1)

Publication Number Publication Date
GB1408998A true GB1408998A (en) 1975-10-08

Family

ID=5855117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4023173A Expired GB1408998A (en) 1972-08-31 1973-08-24 Ceramic materials with open porosity

Country Status (7)

Country Link
AT (1) AT328943B (en)
BE (1) BE804108A (en)
FR (1) FR2197828B1 (en)
GB (1) GB1408998A (en)
IT (1) IT993773B (en)
NL (1) NL7311609A (en)
SE (1) SE381248B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187995A (en) * 1986-01-22 1987-09-23 Honda Motor Co Ltd Process for producing cylindrical reinforcing fibrous molding
GB2255309A (en) * 1991-05-03 1992-11-04 Programme 3 Patent Holdings Making a ceramic holder for active electrode material
US5385700A (en) * 1991-05-03 1995-01-31 Programme 3 Patent Holdings Method of making a holder of ceramic material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781873A (en) * 1985-03-28 1988-11-01 Memtec Limited Reversed phase membranes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1392000A (en) * 1964-01-31 1965-03-12 Lorraine Carbone filter elements and their manufacturing process
DE1942576U (en) * 1965-06-25 1966-07-21 Le Carbon Lorraine Soc LEAD ACCUMULATOR PLATE.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187995A (en) * 1986-01-22 1987-09-23 Honda Motor Co Ltd Process for producing cylindrical reinforcing fibrous molding
GB2187995B (en) * 1986-01-22 1989-11-01 Honda Motor Co Ltd Process for producing cylindrical reinforcing fibrous molding
GB2255309A (en) * 1991-05-03 1992-11-04 Programme 3 Patent Holdings Making a ceramic holder for active electrode material
GB2255309B (en) * 1991-05-03 1994-11-16 Programme 3 Patent Holdings Method of making a holder of ceramic material
US5385700A (en) * 1991-05-03 1995-01-31 Programme 3 Patent Holdings Method of making a holder of ceramic material

Also Published As

Publication number Publication date
AT328943B (en) 1976-04-12
NL7311609A (en) 1974-03-04
DE2242868A1 (en) 1974-03-21
BE804108A (en) 1973-12-17
ATA635773A (en) 1975-06-15
IT993773B (en) 1975-09-30
SE381248B (en) 1975-12-01
DE2242868B2 (en) 1975-09-11
FR2197828B1 (en) 1976-10-01
FR2197828A1 (en) 1974-03-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee