SE7706274L - SPHERIC PLASTER AND PROCEDURE FOR MANUFACTURE THEREOF - Google Patents

SPHERIC PLASTER AND PROCEDURE FOR MANUFACTURE THEREOF

Info

Publication number
SE7706274L
SE7706274L SE7706274A SE7706274A SE7706274L SE 7706274 L SE7706274 L SE 7706274L SE 7706274 A SE7706274 A SE 7706274A SE 7706274 A SE7706274 A SE 7706274A SE 7706274 L SE7706274 L SE 7706274L
Authority
SE
Sweden
Prior art keywords
gypsum
fibrous
alpha
spheric
plaster
Prior art date
Application number
SE7706274A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
T Takyu
M Takasaki
S Shiho
M Inoue
M Hashimoto
Original Assignee
Idemitsu Kosan 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 Idemitsu Kosan Co filed Critical Idemitsu Kosan Co
Publication of SE7706274L publication Critical patent/SE7706274L/en

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
    • C04B11/00—Calcium sulfate cements
    • 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
    • C01F11/466—Conversion of one form of calcium sulfate to another
    • 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
    • C04B14/365—Gypsum

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)
  • Inorganic Fibers (AREA)

Abstract

1536097 Granular fibrous gypsum IDEMITSU KOSAN CO Ltd 14 June 1977 [29 Nov 1976] 24724/77 Heading C1A . Granular gypsum formed of fibrous &alpha;-type hemihydrate or anhydrite gypsum, having bulk density 0À01-0À8 g./cm.<SP>3</SP>, is obtained by subjecting #-type hemihydrate gypsum or dihydrate gypsum or a mixture thereof to hydrothermal reaction in acid medium to form a fibrous gypsum while agitating until the fibres intertwine to form granules. Drying at 50-80‹ C. for 1-3 hours gives &alpha;-hemihydrate product; calcining at 400-1000‹ C. for 0À5-3 hours gives anhydrite product.
SE7706274A 1976-11-29 1977-05-27 SPHERIC PLASTER AND PROCEDURE FOR MANUFACTURE THEREOF SE7706274L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51142212A JPS5817132B2 (en) 1976-11-29 1976-11-29 Spherical settsukou and its manufacturing method

Publications (1)

Publication Number Publication Date
SE7706274L true SE7706274L (en) 1978-05-30

Family

ID=15309996

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7706274A SE7706274L (en) 1976-11-29 1977-05-27 SPHERIC PLASTER AND PROCEDURE FOR MANUFACTURE THEREOF

Country Status (7)

Country Link
JP (1) JPS5817132B2 (en)
CA (1) CA1117271A (en)
DE (1) DE2728213A1 (en)
FR (1) FR2372120A1 (en)
GB (1) GB1536097A (en)
IT (1) IT1115860B (en)
SE (1) SE7706274L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556060A (en) * 1978-10-14 1980-04-24 Idemitsu Kosan Co Refractory material
JPS55152815U (en) * 1979-04-18 1980-11-04
JPS55144416A (en) * 1979-05-01 1980-11-11 Idemitsu Kosan Co Ltd Manufacture of light weight spherical gypsum
JPS56145116A (en) * 1980-04-14 1981-11-11 Idemitsu Kosan Co Ltd Continuous preparation of light gypsum
CN114014620B (en) * 2021-10-29 2022-12-06 北京建筑材料科学研究总院有限公司 Lightweight aggregate and preparation method and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812235B2 (en) * 1975-09-29 1983-03-07 オノダセメント カブシキガイシヤ Setsukou Shinjiyouketsuyouseni no Seizouhouhou

Also Published As

Publication number Publication date
JPS5817132B2 (en) 1983-04-05
CA1117271A (en) 1982-02-02
FR2372120A1 (en) 1978-06-23
FR2372120B1 (en) 1981-12-24
IT1115860B (en) 1986-02-10
GB1536097A (en) 1978-12-20
JPS5366895A (en) 1978-06-14
DE2728213A1 (en) 1978-06-01

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