GB986635A - Clay treatment - Google Patents

Clay treatment

Info

Publication number
GB986635A
GB986635A GB4250160A GB4250160A GB986635A GB 986635 A GB986635 A GB 986635A GB 4250160 A GB4250160 A GB 4250160A GB 4250160 A GB4250160 A GB 4250160A GB 986635 A GB986635 A GB 986635A
Authority
GB
United Kingdom
Prior art keywords
slurry
clay
foamed
calcined
deflocculating
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
GB4250160A
Inventor
Paul Henry Hawkins
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.)
Goonvean China Clay & Stone Co
Original Assignee
Goonvean China Clay & Stone 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 Goonvean China Clay & Stone Co filed Critical Goonvean China Clay & Stone Co
Priority to GB4250160A priority Critical patent/GB986635A/en
Publication of GB986635A publication Critical patent/GB986635A/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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • 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
    • C04B33/00—Clay-wares
    • C04B33/22—Grog products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Stable foamed aqueous slurries of clay are calcined to yield a clay not requiring grinding and yet suitable for use as a filler or pigment. The foamed slurry is fed into the calcining furnace as a spray or as a layer on refractory slabs. The solids/liquid ratio may be increased by adjusting the pH value of the slurry by known methods or by adding a deflocculating agent. The deflocculating agents e.g. sodium carbonate, silicate, hexametaphosphate or pyrophosphate, may be incorporated into the slurry prior to the addition of the foaming agent e.g. sodium alkyl naphthaelene sulphonates and saponin. The foam may be produced by whisking or by gas generation in situ e.g. acid-carbonate or alkali-aluminium reactions occurring in the slurry or it may be generated in the spraying head of the furnace. The example refers to a foamed slurry being calcined at 1100 DEG C. in an oxidizing atmosphere, the resulting mass being in a friable cellular state.
GB4250160A 1960-12-09 1960-12-09 Clay treatment Expired GB986635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4250160A GB986635A (en) 1960-12-09 1960-12-09 Clay treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4250160A GB986635A (en) 1960-12-09 1960-12-09 Clay treatment

Publications (1)

Publication Number Publication Date
GB986635A true GB986635A (en) 1965-03-17

Family

ID=10424716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4250160A Expired GB986635A (en) 1960-12-09 1960-12-09 Clay treatment

Country Status (1)

Country Link
GB (1) GB986635A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395456A (en) 1980-01-10 1983-07-26 Imperial Chemical Industries Limited Inorganic foam
US5977003A (en) * 1995-09-22 1999-11-02 Ecc International Ltd. Particulate materials
US6030704A (en) * 1996-06-21 2000-02-29 Ecc International Ltd. Granular materials comprising inorganic silicon-containing material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4395456A (en) 1980-01-10 1983-07-26 Imperial Chemical Industries Limited Inorganic foam
US5977003A (en) * 1995-09-22 1999-11-02 Ecc International Ltd. Particulate materials
US6030704A (en) * 1996-06-21 2000-02-29 Ecc International Ltd. Granular materials comprising inorganic silicon-containing material

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