GR1001149B - Μεθοδος παραγωγης α-ημιενυδρου θειικου ασβεστιου απο λεπτως διαμερισμενο δισενυδρο θειικο ασβεστιο - Google Patents

Μεθοδος παραγωγης α-ημιενυδρου θειικου ασβεστιου απο λεπτως διαμερισμενο δισενυδρο θειικο ασβεστιο

Info

Publication number
GR1001149B
GR1001149B GR880100324A GR880100324A GR1001149B GR 1001149 B GR1001149 B GR 1001149B GR 880100324 A GR880100324 A GR 880100324A GR 880100324 A GR880100324 A GR 880100324A GR 1001149 B GR1001149 B GR 1001149B
Authority
GR
Greece
Prior art keywords
world
calcium sulphate
autoclave
shaped bodies
semi
Prior art date
Application number
GR880100324A
Other languages
English (en)
Other versions
GR880100324A (en
Inventor
Thomas Johannes Koslowski
Original Assignee
Rhein Westfael Elect Werk Ag
Sicowa Verfahrenstech
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=GR1001149(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhein Westfael Elect Werk Ag, Sicowa Verfahrenstech filed Critical Rhein Westfael Elect Werk Ag
Publication of GR880100324A publication Critical patent/GR880100324A/el
Publication of GR1001149B publication Critical patent/GR1001149B/el

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)
  • Architecture (AREA)
  • Civil Engineering (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

Mέθοδος παραγωγής αλφα-ημιενύδρου θειικού ασβεστίου από λεπτώς διαμερισμένο θειικό ασβέστιο δι' ανακρυσταλλλώσεως του δισενύδρου θειικού ασβεστίου παρουσία κορεσμένου υδρατμού, όπου από το δισένυδρο θειικό ασβέστιο σχηματίζονται διαμορφωμένα σώματα, τα οποία διαθέτουν 15 έως 60% όγκο πόρων καθώς και εντός των πόρων περισσότερο από 5% κατ' όγκον αέρα (όλα τα εκατοστιαία δεδομένα υπολογιζόμενα επί του όγκου των μεμονωμένων διαμορφωμένων σωμάτων). Τα διαμορφωμένα σώματα οδηγούνται εντός αυτοκλείστου. Παρουσία ικανής ποσότητας ύδατος εντός των πόρων ελέγχονται η κρυσταλλική ανάπτυξη και το κρυσταλλικό φορτίο των κρυστάλλων αλφα-ημιενύδρου θειικού ασβεστίου, οι οποίοι αναπτύσσονται από υδατική φάση διαλύματος, μέσω θερμοκρασίας κατεργασίας εντός της περιοχής μεταξύ 110 βαθμούς κελσίου και 180 βαθμούς κελσίου καθώς και μέσω πιέσεως της ατμοσφαίρας κατεργασίας εντός του αυτοκλείστου. Τα διαμορφωμένα σώματα παραλαμβάνονται εκτός του αυτοκλείστου μετά την ανακρυστάλλωση και οδηγούνται στην χρησιμοποίηση. ω
GR880100324A 1987-05-22 1988-05-17 Μεθοδος παραγωγης α-ημιενυδρου θειικου ασβεστιου απο λεπτως διαμερισμενο δισενυδρο θειικο ασβεστιο GR1001149B (el)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GR880100324A GR880100324A (en) 1989-02-23
GR1001149B true GR1001149B (el) 1993-05-24

Family

ID=6328115

Family Applications (1)

Application Number Title Priority Date Filing Date
GR880100324A GR1001149B (el) 1987-05-22 1988-05-17 Μεθοδος παραγωγης α-ημιενυδρου θειικου ασβεστιου απο λεπτως διαμερισμενο δισενυδρο θειικο ασβεστιο

Country Status (20)

Country Link
US (2) US5015449A (el)
EP (1) EP0342272B1 (el)
JP (1) JPH0657605B2 (el)
AT (1) AT396225B (el)
BE (1) BE1002843A5 (el)
CA (2) CA1335034C (el)
CH (1) CH676974A5 (el)
CS (2) CS276735B6 (el)
DD (2) DD272291A5 (el)
DK (1) DK277088A (el)
ES (2) ES2009278A6 (el)
FI (1) FI90052C (el)
FR (1) FR2615505B1 (el)
GB (1) GB2205089B (el)
GR (1) GR1001149B (el)
IT (1) IT1217676B (el)
LU (1) LU87220A1 (el)
NL (1) NL191238C (el)
NO (1) NO179578C (el)
SE (1) SE469720B (el)

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DE59802498D1 (de) * 1997-05-10 2002-01-31 Sicowa Verfahrenstech Verfahren zum Herstellen von Calciumsulfat-Alphahalbhydrat
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US20090208392A1 (en) * 2008-02-14 2009-08-20 Georgia-Pacific Gypsum, Llc Process for producing alpha-hemihydrate gypsum
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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
KR102408805B1 (ko) * 2016-10-17 2022-06-14 리드스 에이비 고유의 특성을 지닌 황산칼슘 반수화물을 생산하는 새로운 방법
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
EP0342272B1 (de) 1991-04-17
NO882200D0 (no) 1988-05-20
GR880100324A (en) 1989-02-23
EP0342272A1 (de) 1989-11-23
FR2615505A1 (fr) 1988-11-25
JPS6465016A (en) 1989-03-10
ATA131288A (de) 1992-11-15
LU87220A1 (de) 1988-12-13
DK277088D0 (da) 1988-05-20
NL191238B (nl) 1994-11-01
SE8801873L (sv) 1988-11-23
NO179578B (no) 1996-07-29
FI90052B (fi) 1993-09-15
FI90052C (fi) 1993-12-27
FR2615505B1 (fr) 1992-10-23
BE1002843A5 (fr) 1991-07-02
CS344988A2 (en) 1991-01-15
DK277088A (da) 1989-02-06
CS344888A3 (en) 1992-03-18
NO882200L (no) 1988-11-23
CA1335034C (en) 1995-04-04
IT8820672A0 (it) 1988-05-20
CS274599B2 (en) 1991-08-13
FI882327A0 (fi) 1988-05-18
NL8801305A (nl) 1988-12-16
JPH0657605B2 (ja) 1994-08-03
DD281593A5 (de) 1990-08-15
AT396225B (de) 1993-07-26
SE8801873D0 (sv) 1988-05-19
GB8811393D0 (en) 1988-06-15
GB2205089A (en) 1988-11-30
GB2205089B (en) 1991-03-13
DD272291A5 (de) 1998-10-01
CA1334332C (en) 1995-02-14
ES2009278A6 (es) 1989-09-16
NL191238C (nl) 1995-04-03
SE469720B (sv) 1993-08-30
US5015449A (en) 1991-05-14
FI882327L (fi) 1988-11-23
NO179578C (no) 1996-11-06
IT1217676B (it) 1990-03-30
CH676974A5 (el) 1991-03-28
US5015450A (en) 1991-05-14
CS276735B6 (en) 1992-08-12
ES2022975B3 (es) 1991-12-16

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