GB697474A - Improvements in or relating to the preparation of fire-resistant and heat-insulatingmaterial - Google Patents

Improvements in or relating to the preparation of fire-resistant and heat-insulatingmaterial

Info

Publication number
GB697474A
GB697474A GB2965950A GB2965950A GB697474A GB 697474 A GB697474 A GB 697474A GB 2965950 A GB2965950 A GB 2965950A GB 2965950 A GB2965950 A GB 2965950A GB 697474 A GB697474 A GB 697474A
Authority
GB
United Kingdom
Prior art keywords
burning
controlled
silica
crystobalite
tridymite
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
GB2965950A
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.)
INTRAEST INTERNAT IND TRADING
Original Assignee
INTRAEST INTERNAT IND TRADING
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 INTRAEST INTERNAT IND TRADING filed Critical INTRAEST INTERNAT IND TRADING
Publication of GB697474A publication Critical patent/GB697474A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/10—Burned or pyrolised refuse
    • C04B18/101—Burned rice husks or other burned vegetable material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

The burning of rice husks is controlled so that the silica is converted into tridymite predominantly, the remainder being crystobalite. Conditions specified are the amount of air is such that combustion is slow and complete, and cooling of the mass is prevented.ALSO:Fire resistant and heat insulating material is prepared by converting the silica from rice husks by controlled burning into tridymite predominantly and the remainder crystobalite, adding a solution, at least partially colloidal, of an inorganic material such as the hydrated silicates of trivalent metals or of trivalent metals and alkaline earth metals so that the silica particles are coated without their porosity being affected, and burning slowly and at a high temperature. The initial burning is controlled by the amount of air supplied, being such that combustion is slow and complete, and cooling of the mass is prevented.
GB2965950A 1949-12-02 1950-12-04 Improvements in or relating to the preparation of fire-resistant and heat-insulatingmaterial Expired GB697474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH697474X 1949-12-02

Publications (1)

Publication Number Publication Date
GB697474A true GB697474A (en) 1953-09-23

Family

ID=4529746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2965950A Expired GB697474A (en) 1949-12-02 1950-12-04 Improvements in or relating to the preparation of fire-resistant and heat-insulatingmaterial

Country Status (1)

Country Link
GB (1) GB697474A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544666A (en) * 1967-01-10 1970-12-01 Asahi Glass Co Ltd Method for producing a heat insulating refractory using calcined geyserite having a high tridymite content
US3959007A (en) * 1972-07-28 1976-05-25 Structural Materials Process for the preparation of siliceous ashes
JPS5233375A (en) * 1975-09-02 1977-03-14 Steinmueller Gmbh L & C Apparatus for chaff incineration
US4049464A (en) * 1974-04-04 1977-09-20 Refratechnik Gmbh Method of producing low-carbon, white husk ash
US4295891A (en) * 1980-05-16 1981-10-20 Daussan Et Compagnie Blanket powder for covering a molten metal bath

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544666A (en) * 1967-01-10 1970-12-01 Asahi Glass Co Ltd Method for producing a heat insulating refractory using calcined geyserite having a high tridymite content
US3959007A (en) * 1972-07-28 1976-05-25 Structural Materials Process for the preparation of siliceous ashes
US4049464A (en) * 1974-04-04 1977-09-20 Refratechnik Gmbh Method of producing low-carbon, white husk ash
JPS5233375A (en) * 1975-09-02 1977-03-14 Steinmueller Gmbh L & C Apparatus for chaff incineration
US4295891A (en) * 1980-05-16 1981-10-20 Daussan Et Compagnie Blanket powder for covering a molten metal bath

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