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GB697126A - Improvements in or relating to high temperature insulating refractories - Google Patents

Improvements in or relating to high temperature insulating refractories

Info

Publication number
GB697126A
GB697126A GB724951A GB724951A GB697126A GB 697126 A GB697126 A GB 697126A GB 724951 A GB724951 A GB 724951A GB 724951 A GB724951 A GB 724951A GB 697126 A GB697126 A GB 697126A
Authority
GB
United Kingdom
Prior art keywords
pellets
refractory
clay
globules
finely divided
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
GB724951A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB724951A priority Critical patent/GB697126A/en
Publication of GB697126A publication Critical patent/GB697126A/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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/30—Oxides other than silica
    • C04B14/303—Alumina
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • 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
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Hollow pellets of alumina, mullite, kyanite, forsterite, clay or kaolin are formed by coating a combustible core e.g. dextrose, starch, resins or lignone with the appropriate finely divided material and firing and sintering (see Group V).ALSO:Hollow refractory pellets of wall thickness between 5 and 30 thousandths of an inch and of a size passing through a screen of 5 mesh U.S. standard are prepared by coating globules of combustible material with finely divided refractory material, forming a shell thereon, firing the globule to burn out the combustible material and to sinter the refractory material. Preferred refractory materials are mullite, kyanite, alumina, forsterite, clay, kaolin grog or clay grog. The combustible material may be a "filled" Lignore solution, i.e. dry Lignore incorporated in a concentrated solution thereof, dextrose, starch or resins, and finely divided combustibles may be added to such solutions, e.g. wood flour, nut shells, sugar cane or pith. A cellular insulating body may be produced from the globules or the pellets. When using globules they are moulded and then fired. When pellets are used they are mixed with a binder, e.g. refractory clay plus sodium silicate or a calcium aluminate cement, moulded, and the shaped body refired, if required. A bond for the pellets may be of the same material as the pellets themselves.
GB724951A 1951-03-28 1951-03-28 Improvements in or relating to high temperature insulating refractories Expired GB697126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB724951A GB697126A (en) 1951-03-28 1951-03-28 Improvements in or relating to high temperature insulating refractories

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB724951A GB697126A (en) 1951-03-28 1951-03-28 Improvements in or relating to high temperature insulating refractories

Publications (1)

Publication Number Publication Date
GB697126A true GB697126A (en) 1953-09-16

Family

ID=9829486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB724951A Expired GB697126A (en) 1951-03-28 1951-03-28 Improvements in or relating to high temperature insulating refractories

Country Status (1)

Country Link
GB (1) GB697126A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408410A2 (en) * 1977-11-09 1979-06-08 Eitel Hans POWDER PREPARATION PROCESS FOR CASTING
FR2806719A1 (en) * 2000-03-24 2001-09-28 Vibracim Composition for a ceramic insulating material incorporating hollow granules with a silica/alumina base and a alkaline silicate binder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408410A2 (en) * 1977-11-09 1979-06-08 Eitel Hans POWDER PREPARATION PROCESS FOR CASTING
FR2806719A1 (en) * 2000-03-24 2001-09-28 Vibracim Composition for a ceramic insulating material incorporating hollow granules with a silica/alumina base and a alkaline silicate binder

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