ES2009278A6 - Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido. - Google Patents

Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido.

Info

Publication number
ES2009278A6
ES2009278A6 ES8801596A ES8801596A ES2009278A6 ES 2009278 A6 ES2009278 A6 ES 2009278A6 ES 8801596 A ES8801596 A ES 8801596A ES 8801596 A ES8801596 A ES 8801596A ES 2009278 A6 ES2009278 A6 ES 2009278A6
Authority
ES
Spain
Prior art keywords
calcium sulphate
dihydrate
alpha
procedure
preparation
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
ES8801596A
Other languages
English (en)
Inventor
Thomas Johannes Koslowski
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.)
RWE AG
Original Assignee
Rheinisch Westfaelisches Elektrizitaetswerk AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6328115&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2009278(A6) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rheinisch Westfaelisches Elektrizitaetswerk AG filed Critical Rheinisch Westfaelisches Elektrizitaetswerk AG
Publication of ES2009278A6 publication Critical patent/ES2009278A6/es
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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C04B22/142—Sulfates
    • C04B22/143—Calcium-sulfate
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
    • A01K1/0152—Litter
    • A01K1/0154—Litter comprising inorganic material
    • 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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • 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
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
    • 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
    • C04B11/268—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke pelletizing of the material before starting the manufacture
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/027—Lightweight materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Animal Husbandry (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE SULFATO CALCICO ALFA-HEMIHIDRATO A PARTIR DE SULFATO CALCICO DIHIDRATO FINAMENTE DIVIDIDO. PROCEDIMIENTO PARA LA PREPARACION DE SULFATO CALCICO ALFA-HEMIHIDRATO A PARTIR DE SULFATO CALCICO DIHIDRATO FINAMENTE DIVIDIDO POR RECRISTALIZACION DEL SULFATO CALCICO DIHIDRATO EN PRESENCIA DE VAPOR DE AGUA SATURADO, EN EL QUE A PARTIR DEL SULFATO CALCICO DIHIDRATO SE CONFORMAN CUERPOS MOLDEADOS QUE TIENEN UN VOLUMEN DE POROS DE 15 A 60%, ASI COMO EN LOS POROS MAS DE 5% EN VOLUMEN DE AIRE (TODOS LOS DATOS PORCENTUALES ESTAN REFERIDOS AL VOLUMEN DE LOS CUERPOS MOLDEADOS INDIVIDUALES). LOS CUERPOS MOLDEADOS SON INTRODUCIDOS EN UN AUTOCLAVE. EN EL CASO DE PRESENCIA DE UNA CANTIDAD SUFICIENTE DE AGUA EN LOS POROS, EL CRECIMIENTO CRISTALINO Y EL TRACTO CRISTALINO DE LOS CRISTALES DE SULFATO CALCICO ALFA-HEMIHIDRATO, QUE CRECEN A PARTIR DE UNA FASE DE SOLUCION ACUOSA, SE CONTROLANMEDIANTE UNA TEMPERATURA DE TRATAMIENTO EN EL INTERVALO ENTRE 110GC Y 180GC ASI COMO LA PRESION DE LA ATMOSFERA DE TRATAMIENTO EN EL AUTOCLAVE. LOS CUERPOS MOLDEADOS, DESPUES DE LA RECRISTALIZACION, SON RETIRADOS DEL AUTOCLAVE Y APORTADOS A SU UTILIZACION.
ES8801596A 1987-05-22 1988-05-20 Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido. Expired ES2009278A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3717187 1987-05-22

Publications (1)

Publication Number Publication Date
ES2009278A6 true ES2009278A6 (es) 1989-09-16

Family

ID=6328115

Family Applications (2)

Application Number Title Priority Date Filing Date
ES8801596A Expired ES2009278A6 (es) 1987-05-22 1988-05-20 Procedimiento para la preparacion de sulfato calcico alfa-hemidrato a partir de sulfato calcico dihidrato finamente dividido.
ES88120944T Expired - Lifetime ES2022975B3 (es) 1987-05-22 1988-12-15 Proceso de elaboracion de alfasemihidrato de calciosulfato.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES88120944T Expired - Lifetime ES2022975B3 (es) 1987-05-22 1988-12-15 Proceso de elaboracion de alfasemihidrato de calciosulfato.

Country Status (20)

Country Link
US (2) US5015449A (es)
EP (1) EP0342272B1 (es)
JP (1) JPH0657605B2 (es)
AT (1) AT396225B (es)
BE (1) BE1002843A5 (es)
CA (2) CA1334332C (es)
CH (1) CH676974A5 (es)
CS (2) CS276735B6 (es)
DD (2) DD281593A5 (es)
DK (1) DK277088A (es)
ES (2) ES2009278A6 (es)
FI (1) FI90052C (es)
FR (1) FR2615505B1 (es)
GB (1) GB2205089B (es)
GR (1) GR1001149B (es)
IT (1) IT1217676B (es)
LU (1) LU87220A1 (es)
NL (1) NL191238C (es)
NO (1) NO179578C (es)
SE (1) SE469720B (es)

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DE4034497C1 (es) * 1990-10-30 1992-02-13 Metallgesellschaft Ag, 6000 Frankfurt, De
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US5395438A (en) * 1994-01-14 1995-03-07 Usg Interiors, Inc. Mineral wool-free acoustical tile composition
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US5562892A (en) * 1995-01-26 1996-10-08 Kirk; Donald W. Process for the production of alpha hemihydrate calcium sulfate from flue gas sludge
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DE59802498D1 (de) * 1997-05-10 2002-01-31 Sicowa Verfahrenstech Verfahren zum Herstellen von Calciumsulfat-Alphahalbhydrat
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US6964704B2 (en) * 2003-03-20 2005-11-15 G.B. Technologies, Llc Calcium sulphate-based composition and methods of making same
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JP4075709B2 (ja) * 2003-07-02 2008-04-16 住友電装株式会社 コネクタ
US7776150B2 (en) * 2006-03-16 2010-08-17 Koppern Eqipment, Inc. Process and apparatus for handling synthetic gypsum
CN101479209A (zh) 2006-06-29 2009-07-08 吉野石膏株式会社 熟石膏及石膏板的制造方法
US7754006B2 (en) * 2007-03-20 2010-07-13 United States Gypsum Company Process for manufacturing ready-mixed setting alpha-calcium sulphate hemi-hydrate and kit for same
DE102007024188B3 (de) * 2007-05-24 2008-04-10 Grenzebach Bsh Gmbh Verfahren zur Herstellung von Alpha-Calciumsulfat-Halbhydrat aus Calciumsulfat-Dihydrat und zugehörige Vorrichtung
US20090208392A1 (en) * 2008-02-14 2009-08-20 Georgia-Pacific Gypsum, Llc Process for producing alpha-hemihydrate gypsum
FI120819B (fi) * 2008-04-09 2010-03-31 Kemira Oyj Menetelmä kipsin puhdistamiseksi
EP2163532A1 (de) 2008-09-11 2010-03-17 Claudius Peters Technologies GmbH Verfahren und Anlage zur Herstellung von Hartgips
CN103482892A (zh) * 2013-09-17 2014-01-01 湖北龙源石膏有限公司 α型高强石膏粉的制备方法
WO2016073393A1 (en) * 2014-11-03 2016-05-12 Georgia-Pacific Gypsum Llc Microwave heating for gypsum manufacturing processes
CN105384372B (zh) * 2015-11-27 2018-09-28 山东先罗输送机械有限公司 脱硫石膏制备建筑石膏的方法及其装置
CN105859236A (zh) * 2016-03-31 2016-08-17 安徽森科新材料有限公司 一种抗静电地板干法石膏胶凝基材及其制备方法
CN106145854A (zh) * 2016-07-01 2016-11-23 马振义 耐水脱硫石膏模合及其制备方法
CN106145853A (zh) * 2016-07-01 2016-11-23 马振义 耐水磷石膏模合及其制备方法
US10351437B2 (en) * 2016-10-17 2019-07-16 Lidds Ab Method for producing calcium sulphate hemihydrate with unique properties
CN111298805B (zh) * 2020-03-13 2023-04-11 吉林省惠净环保有限公司 一种燃煤催化剂及其制备方法和应用
CN111807736A (zh) * 2020-07-13 2020-10-23 湖南金隆再生金属有限公司 一种脱硫熟石膏加工工艺

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Also Published As

Publication number Publication date
GB2205089B (en) 1991-03-13
CS344888A3 (en) 1992-03-18
FR2615505A1 (fr) 1988-11-25
CS274599B2 (en) 1991-08-13
JPS6465016A (en) 1989-03-10
AT396225B (de) 1993-07-26
FI90052B (fi) 1993-09-15
FI90052C (fi) 1993-12-27
NL191238C (nl) 1995-04-03
BE1002843A5 (fr) 1991-07-02
DK277088A (da) 1989-02-06
NO882200L (no) 1988-11-23
EP0342272B1 (de) 1991-04-17
GR1001149B (el) 1993-05-24
CS276735B6 (en) 1992-08-12
US5015449A (en) 1991-05-14
CA1335034C (en) 1995-04-04
ATA131288A (de) 1992-11-15
JPH0657605B2 (ja) 1994-08-03
CA1334332C (en) 1995-02-14
NO882200D0 (no) 1988-05-20
SE8801873L (sv) 1988-11-23
IT8820672A0 (it) 1988-05-20
DK277088D0 (da) 1988-05-20
CS344988A2 (en) 1991-01-15
GB2205089A (en) 1988-11-30
EP0342272A1 (de) 1989-11-23
ES2022975B3 (es) 1991-12-16
SE8801873D0 (sv) 1988-05-19
US5015450A (en) 1991-05-14
LU87220A1 (de) 1988-12-13
FR2615505B1 (fr) 1992-10-23
GR880100324A (en) 1989-02-23
GB8811393D0 (en) 1988-06-15
NO179578C (no) 1996-11-06
CH676974A5 (es) 1991-03-28
DD281593A5 (de) 1990-08-15
SE469720B (sv) 1993-08-30
FI882327A0 (fi) 1988-05-18
NL191238B (nl) 1994-11-01
FI882327L (fi) 1988-11-23
NL8801305A (nl) 1988-12-16
DD272291A5 (de) 1998-10-01
NO179578B (no) 1996-07-29
IT1217676B (it) 1990-03-30

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