GB2053874B - Production of calcium sulphate - Google Patents

Production of calcium sulphate

Info

Publication number: GB2053874B
Authority: GB; United Kingdom
Prior art keywords: production; calcium sulphate; sulphate; calcium
Prior art date: 1977-12-29
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

GB8015586A

Other versions

GB2053874A (en

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.)

Idemitsu Kosan Co Ltd

Original Assignee

Idemitsu Kosan Co Ltd

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.)

1977-12-29

Filing date

1978-12-15

Publication date

1982-07-28

1977-12-29 Priority claimed from JP15945577A external-priority patent/JPS5499098A/en

1978-07-05 Priority claimed from JP8096778A external-priority patent/JPS5510406A/en

1978-12-15 Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd

1981-02-11 Publication of GB2053874A publication Critical patent/GB2053874A/en

1982-07-28 Application granted granted Critical

1982-07-28 Publication of GB2053874B publication Critical patent/GB2053874B/en

Status Expired legal-status Critical Current

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
- C04B11/02—Methods and apparatus for dehydrating gypsum
- 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
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/025—Calcium sulfates
- 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
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
- 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
- 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
- C01P2006/10—Solid density

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Compositions Of Macromolecular Compounds (AREA)
Catalysts (AREA)

GB8015586A 1977-12-29 1978-12-15 Production of calcium sulphate Expired GB2053874B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP15945577A JPS5499098A (en)	1977-12-29	1977-12-29	Production of satin spar gypsum or spherical gypsum formed from said gypsum
JP8096778A JPS5510406A (en)	1978-07-05	1978-07-05	Production of gypsum

Publications (2)

Publication Number	Publication Date
GB2053874A GB2053874A (en)	1981-02-11
GB2053874B true GB2053874B (en)	1982-07-28

Family

ID=26421929

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB8015586A Expired GB2053874B (en)	1977-12-29	1978-12-15	Production of calcium sulphate
GB7848753A Expired GB2011363B (en)	1977-12-29	1978-12-15	Production of calcium sulphate

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
GB7848753A Expired GB2011363B (en)	1977-12-29	1978-12-15	Production of calcium sulphate

Country Status (5)

Country	Link
CA (1)	CA1115025A (en)
DE (1)	DE2854722C2 (en)
FR (1)	FR2413339B1 (en)
GB (2)	GB2053874B (en)
IT (1)	IT1158192B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4818287A (en) *	1982-05-19	1989-04-04	Georgia-Pacific Corporation	Fiber reinforced plaster molds for metal casting
US5148645A (en) *	1984-02-27	1992-09-22	Georgia-Pacific Corporation	Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board
US4664707A (en) *	1985-04-09	1987-05-12	Georgia-Pacific Corporation	Fire resistant gypsum composition
US4722866A (en) *	1985-04-09	1988-02-02	Georgia-Pacific Corporation	Fire resistant gypsum board
DE3615717A1 (en) *	1986-05-09	1987-11-12	Benckiser Gmbh Joh A	METHOD FOR THE HYDROTHERMAL CONVERSION OF SMOKE GAS DESULFURATION PLASTER IN CALCIUM SULFATE (ALPHA) HEMIHYDRATE
EP0416089A4 (en) *	1989-03-16	1991-08-07	United States Gypsum Company	Process and apparatus for producing calcium sulfate microfibers
US5401588A (en) *	1992-12-23	1995-03-28	Georgia-Pacific Resins Inc.	Gypsum microfiber sheet material
FR2856679B1 (en) *	2003-06-26	2006-12-22	Couturier Jean	PROCESS FOR PREPARING ANHYDRITE III STABILIZED FROM PLASTER
FR2950879B1 (en) *	2009-10-02	2012-11-23	Cemex Res Group Ag	ANHYDRITE MORTAR FOR MANUFACTURING FLUID CAP AND METHOD FOR PREPARING ANHYDRITE FOR MANUFACTURING SUCH A MORTAR
US20150158998A1 (en) *	2013-12-06	2015-06-11	Flint Hills Resources, Lp	Gypsum composite modifiers
US20150158997A1 (en) *	2013-12-06	2015-06-11	Georgia-Pacific Gypsum Llc	Gypsum composite modifiers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1356700A (en) *	1963-05-10	1964-03-27	Giulini Gmbh Soc Geb	Process for the production of high quality semi-hydrated plasters
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
GB1248037A (en) *	1968-01-13	1971-09-29	Fisons Ltd	Calcium sulphate
US3822340A (en) *	1972-03-27	1974-07-02	Franklin Key	Calcium sulfate whisker fibers and the method for the manufacture thereof
JPS593406B2 (en) *	1974-05-15	1984-01-24	三菱重工業株式会社	Alpha-Gatahansuisetsukou
US4029512A (en) *	1974-08-05	1977-06-14	Johns-Manville Corporation	Method for the preparation of fibrous insoluble calcium sulfate anhydrite
JPS5248594A (en) *	1975-10-17	1977-04-18	Kureha Chem Ind Co Ltd	Method for producing type gypsum hemihydrate
JPS52156199A (en) *	1976-06-22	1977-12-26	Onoda Cement Co Ltd	Production of gypsum fiber
DE2729842B2 (en) *	1977-07-01	1979-05-23	Skw Trostberg Ag, 8223 Trostberg	Process for the production of inorganic fibers based on calcium sulfate

1978
- 1978-12-15 GB GB8015586A patent/GB2053874B/en not_active Expired
- 1978-12-15 GB GB7848753A patent/GB2011363B/en not_active Expired
- 1978-12-19 DE DE2854722A patent/DE2854722C2/en not_active Expired
- 1978-12-19 CA CA318,237A patent/CA1115025A/en not_active Expired
- 1978-12-27 FR FR7836549A patent/FR2413339B1/en not_active Expired
- 1978-12-27 IT IT52460/78A patent/IT1158192B/en active

Also Published As

Publication number	Publication date
CA1115025A (en)	1981-12-29
GB2053874A (en)	1981-02-11
DE2854722C2 (en)	1985-09-19
IT1158192B (en)	1987-02-18
FR2413339B1 (en)	1985-11-08
IT7852460A0 (en)	1978-12-27
GB2011363B (en)	1982-07-14
DE2854722A1 (en)	1979-07-05
FR2413339A1 (en)	1979-07-27
GB2011363A (en)	1979-07-11

Publication	Publication Date	Title
JPS5430155A (en)	1979-03-06	Production of oligoimide
JPS53113006A (en)	1978-10-03	Production of alubmin
GB2010822B (en)	1982-04-15	Production of nitrodiarylamines
GB2010830B (en)	1982-04-07	Production of nitrodiarylamines
GB2011363B (en)	1982-07-14	Production of calcium sulphate
JPS5424936A (en)	1979-02-24	Production of calcium sulfate base products
JPS53124638A (en)	1978-10-31	Production of onigiri
JPS5459249A (en)	1979-05-12	Production of alphaa cyanobenzylester
JPS5418927A (en)	1979-02-13	Production of inorganic fiber based on calcium sulphate
GB1545788A (en)	1979-05-16	Manufacture of calcium sulphate
JPS5424874A (en)	1979-02-24	Production of dodecamethylcyclohexasilane
JPS543835A (en)	1979-01-12	Production of cement
GB2005301B (en)	1983-01-12	Production of
JPS5459296A (en)	1979-05-12	Production of alphaaaminoo paraahydroxybenzylpeniciline
JPS5414990A (en)	1979-02-03	Production of chlorooss triazinetriones
JPS5422356A (en)	1979-02-20	Production of homosteroids
DE2861197D1 (en)	1981-12-24	Production of n-acyl-thienamycins
JPS548046A (en)	1979-01-22	Production of chikatabi
JPS5414989A (en)	1979-02-03	Production of fuorinated sstriazine
JPS5480456A (en)	1979-06-27	Production of cornbeef
JPS5495790A (en)	1979-07-28	Production of glycoalcohol
JPS5430143A (en)	1979-03-06	Production of benzoinalkylether
JPS53104752A (en)	1978-09-12	Production of ganmodoki
JPS548625A (en)	1979-01-23	Production of reinforced gypsum
JPS546012A (en)	1979-01-17	Production of cement

Legal Events

Date	Code	Title	Description
1992-08-12	PCNP	Patent ceased through non-payment of renewal fee