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GB1547422A - Manufacture of gypsum - Google Patents

Manufacture of gypsum

Info

Publication number
GB1547422A
GB1547422A GB1278976A GB1278976A GB1547422A GB 1547422 A GB1547422 A GB 1547422A GB 1278976 A GB1278976 A GB 1278976A GB 1278976 A GB1278976 A GB 1278976A GB 1547422 A GB1547422 A GB 1547422A
Authority
GB
United Kingdom
Prior art keywords
gypsum
manufacture
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
GB1278976A
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.)
JAPAN GOVERNMENT
Original Assignee
JAPAN GOVERNMENT
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
Priority claimed from JP50039673A external-priority patent/JPS5838363B2/en
Priority claimed from JP50094618A external-priority patent/JPS5218496A/en
Priority claimed from JP50094619A external-priority patent/JPS59467B2/en
Application filed by JAPAN GOVERNMENT filed Critical JAPAN GOVERNMENT
Publication of GB1547422A publication Critical patent/GB1547422A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides
    • 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
    • C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
    • C04B11/262—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke waste gypsum other than phosphogypsum
    • C04B11/264—Gypsum from the desulfurisation of flue gases
    • 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
    • C04B14/38—Fibrous materials; Whiskers
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • 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
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/40—Particle morphology extending in three dimensions prism-like

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
GB1278976A 1975-03-31 1976-03-30 Manufacture of gypsum Expired GB1547422A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP50039673A JPS5838363B2 (en) 1975-03-31 1975-03-31 Alfa Gatahansuisetsukou Oseizosurhouhou
JP50094618A JPS5218496A (en) 1975-08-01 1975-08-01 Process for production of alpha-type gypsum hemi-hydrate from sulfur oxide in the waste gas
JP50094619A JPS59467B2 (en) 1975-08-01 1975-08-01 Setsukou Whisker - Fukugoutai

Publications (1)

Publication Number Publication Date
GB1547422A true GB1547422A (en) 1979-06-20

Family

ID=27290218

Family Applications (3)

Application Number Title Priority Date Filing Date
GB1191177A Expired GB1547424A (en) 1975-03-31 1976-03-30 Method of producing needlelike 11-anhydrite gypsum
GB1278976A Expired GB1547422A (en) 1975-03-31 1976-03-30 Manufacture of gypsum
GB1191077A Expired GB1547423A (en) 1975-03-31 1976-03-30 Gypsum whisker composites

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1191177A Expired GB1547424A (en) 1975-03-31 1976-03-30 Method of producing needlelike 11-anhydrite gypsum

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1191077A Expired GB1547423A (en) 1975-03-31 1976-03-30 Gypsum whisker composites

Country Status (2)

Country Link
DE (3) DE2613651C2 (en)
GB (3) GB1547424A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165829A (en) * 1984-09-17 1986-04-23 Kureha Chemical Ind Co Ltd Producing a-gypsum hemihydrate
CN104313727A (en) * 2014-10-10 2015-01-28 孙红芳 Method for preparing gypsum fibers by utilizing alabaster

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255398A (en) * 1977-03-15 1981-03-10 Hyogo Prefectural Government Of Japan Novel ettringite whiskers, production and uses
JPS53137093A (en) * 1977-03-15 1978-11-30 Hiyougoken Method of synthesizing ettringite
MC1284A1 (en) * 1979-06-11 1980-07-22 Daussan & Co GRANULAR INSULATING PRODUCT AND ITS PREPARATION METHOD
DE3129878C2 (en) * 1981-07-29 1985-01-31 Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen Process for the production of alpha calcium sulfate hemihydrate from desulfurization sludge
DE3146143C2 (en) * 1981-11-21 1986-06-19 L. & C. Steinmüller GmbH, 5270 Gummersbach Process for the production of synthetic anhydrite in finely crystalline form
SE438846B (en) * 1982-11-12 1985-05-13 Flaekt Ab PROCEDURE AND DEVICE FOR CLEANING OF GAS GAS FROM SULFUR DIOXIDE
SE8302591L (en) * 1983-05-06 1984-11-07 Boliden Ab PROCEDURE FOR MANUFACTURING FIBER PLASTICS (II)
SE8302590L (en) * 1983-05-06 1984-11-07 Boliden Ab PROCEDURE FOR MANUFACTURING FIBER PLASTICS (I)
NL8402502A (en) * 1983-09-03 1985-04-01 Bischoff Gasreinigung METHOD FOR CONVERTING THE RESIDUE FROM FLUE-GAS desulfurization plants in alpha-hydroxyhydrate plaster crystals
DE3539261A1 (en) * 1985-11-06 1987-05-07 Hoelter Heinz Anhydrite for the production of dam construction materials in mining
JP2642978B2 (en) * 1989-01-17 1997-08-20 三菱重工業株式会社 Manufacturing method of anhydrous gypsum
US5312609A (en) * 1992-12-31 1994-05-17 Dravo Lime Company Method of sulfur dioxide removal from gaseous streams with α-hemihydrate gypsum product formation
FI102959B1 (en) * 1996-09-23 1999-03-31 Kemira Agro Oy A process for oxidizing magnesium sulfite or magnesium hydrogen sulfite
CN102677177B (en) * 2012-04-13 2015-08-26 昆明理工大学 A kind of preparation method of high length-diameter ratio hemihydrate calcium sulfate crystal whisker
CN105874013B (en) * 2013-12-06 2020-07-24 佐治亚-太平洋石膏有限责任公司 Calcium sulfate crystal and method for producing same
CN110438568B (en) * 2019-07-31 2024-02-27 一夫科技股份有限公司 Method and system for producing gypsum whisker by using citric acid gypsum
CN114836830B (en) * 2022-05-16 2023-05-16 西华大学 Alpha-calcium sulfate hemihydrate whisker with high length-diameter ratio and preparation method and application thereof

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US782321A (en) * 1904-02-29 1905-02-14 William Brothers Manufacture of crystalline gypsum applicable for filling purposes.
US1901051A (en) * 1929-08-08 1933-03-14 United States Gypsum Co High strength calcined gypsum and process of manufacturing same
DE1157128B (en) * 1962-05-25 1963-11-07 Giulini Ges Mit Beschraenkter Process for the production of ª ‡ calcium sulfate hemihydrate from synthetic calcium sulfate dihydrate
GB1079502A (en) * 1963-05-28 1967-08-16 Cafferata & Co Ltd Improvements in and relating to the production of calcium sulphate hemihydrate
GB1051849A (en) 1963-12-03
DE1238374B (en) * 1965-04-24 1967-04-06 Giulini Ges Mit Beschraenkter Process for the production of alpha calcium sulfate hemihydrate
US3552918A (en) * 1966-11-08 1971-01-05 Dorr Oliver Inc Process for the production of phosphoric acid
GB1202893A (en) * 1967-02-09 1970-08-19 Fisons Ltd Calcium sulphate hemihydrate
DE1592121C3 (en) * 1967-08-16 1975-08-14 Gebrueder Giulini Gmbh, 6700 Ludwigshafen Process for the continuous production of alpha calcium sulfate hemihydrate
GB1262083A (en) * 1968-05-28 1972-02-02 Bpb Industries Ltd alpha-CALCIUM SULPHATE HEMIHYDRATE
DE1923993C3 (en) 1969-05-10 1973-10-11 Gebrueder Giulini Gmbh, 6700 Ludwigshafen Process for the control of stallion costumes and growth in the hydrothermal production of alpha calcium sulfate hemihydrate
CA950169A (en) * 1970-10-26 1974-07-02 Kureha Kagaku Kogyo Kabushiki Kaisha Production of gypsum from combustion exhaust gas
DE2107484A1 (en) 1971-02-17 1972-08-31 Farbenfabriken Bayer Ag, 5090 Leverkusen Production of screeds and building elements according to the flow process
DE2146007B2 (en) * 1971-09-15 1976-11-11 Gebrüder Giulini GmbH, 6700 Ludwigshafen PROCESS FOR THE SEPARATION OF ALPHA CALCIUM SULFATE HALBYDRATE FROM A SUSPENSION
US3822340A (en) * 1972-03-27 1974-07-02 Franklin Key Calcium sulfate whisker fibers and the method for the manufacture thereof
JPS5222353B2 (en) * 1972-07-22 1977-06-16
JPS5147436B2 (en) * 1972-11-10 1976-12-15
JPS5211680B2 (en) * 1973-03-14 1977-04-01
DE2752367A1 (en) 1977-11-24 1979-06-07 Bayer Ag Hemi:hydrate whiskers prodn. - by boiling mono:basic acid soln. or suspension contg. gypsum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165829A (en) * 1984-09-17 1986-04-23 Kureha Chemical Ind Co Ltd Producing a-gypsum hemihydrate
CN104313727A (en) * 2014-10-10 2015-01-28 孙红芳 Method for preparing gypsum fibers by utilizing alabaster

Also Published As

Publication number Publication date
DE2659861A1 (en) 1977-09-01
DE2659861C2 (en) 1982-07-01
DE2659860C2 (en) 1982-06-09
GB1547424A (en) 1979-06-20
DE2613651A1 (en) 1976-10-07
DE2613651C2 (en) 1982-04-15
GB1547423A (en) 1979-06-20
DE2659860A1 (en) 1977-09-01

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PS Patent sealed
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee