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GB1038025A - Lightweight material and production thereof - Google Patents

Lightweight material and production thereof

Info

Publication number
GB1038025A
GB1038025A GB3254063A GB3254063A GB1038025A GB 1038025 A GB1038025 A GB 1038025A GB 3254063 A GB3254063 A GB 3254063A GB 3254063 A GB3254063 A GB 3254063A GB 1038025 A GB1038025 A GB 1038025A
Authority
GB
United Kingdom
Prior art keywords
crystals
caso4
solvent
acicular
prepared
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
GB3254063A
Inventor
Kenneth Kurt Schiller
Rama Kumar Gupta
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.)
BPB Ltd
Original Assignee
BPB Industries PLC
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 BPB Industries PLC filed Critical BPB Industries PLC
Priority to GB3254063A priority Critical patent/GB1038025A/en
Publication of GB1038025A publication Critical patent/GB1038025A/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
    • 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
    • C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • 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
    • C04B30/00—Compositions for artificial stone, not containing binders
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

A lightweight material having a bulk density not greater than 25 lbs. per cu. ft. consists of a lightly packed mass of acicular CaSO4 crystals, and is prepared by cooling a solution of CaSO4 in a solvent in which solubility decreases with decrease in temperature and from which large (1 mm. in length or more) acicular crystals are formed and separating the crystals so formed. A mineral acid (e.g. 15% H2SO4 or 10% HCl) is a suitable solvent. The starting material may be gypsum. The hot saturated CaSO4 may be prepared at 90 DEG C. and slowly cooled (up to 25 DEG C. per hour) to precipitate crystals, gentle agitation may be applied. The crystals may be freed from solvent and a shaped mass obtained by lightly pressing in a mould. An adhesive (e.g. an animal glue) may be applied to improve the dimensional stability of the shape.
GB3254063A 1963-08-16 1963-08-16 Lightweight material and production thereof Expired GB1038025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3254063A GB1038025A (en) 1963-08-16 1963-08-16 Lightweight material and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3254063A GB1038025A (en) 1963-08-16 1963-08-16 Lightweight material and production thereof

Publications (1)

Publication Number Publication Date
GB1038025A true GB1038025A (en) 1966-08-03

Family

ID=10340167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3254063A Expired GB1038025A (en) 1963-08-16 1963-08-16 Lightweight material and production thereof

Country Status (1)

Country Link
GB (1) GB1038025A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179760A1 (en) * 1972-03-27 1973-11-23 Franklin Key
FR2377970A1 (en) * 1977-01-19 1978-08-18 Bayer Ag PROCESS FOR THE PREPARATION OF CALCIUM SULPHATE "WHISKERS" MONOCRISTALS, AND PRODUCTS OBTAINED
FR2395965A1 (en) * 1977-07-01 1979-01-26 Sueddeutsche Kalkstickstoff PROCESS FOR PREPARING MINERAL FIBERS BASED ON CALCIUM SULPHATE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179760A1 (en) * 1972-03-27 1973-11-23 Franklin Key
FR2377970A1 (en) * 1977-01-19 1978-08-18 Bayer Ag PROCESS FOR THE PREPARATION OF CALCIUM SULPHATE "WHISKERS" MONOCRISTALS, AND PRODUCTS OBTAINED
FR2395965A1 (en) * 1977-07-01 1979-01-26 Sueddeutsche Kalkstickstoff PROCESS FOR PREPARING MINERAL FIBERS BASED ON CALCIUM SULPHATE

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