NL141481B - Werkwijze voor het calcineren van gips. - Google Patents

Werkwijze voor het calcineren van gips.

Info

Publication number: NL141481B
Authority: NL; Netherlands
Prior art keywords: gips; calcinating; calcinating gips
Prior art date: 1961-11-13

Application number

NL285104A

Other languages

English (en)

Original Assignee

Bpb Industries 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.)

1961-11-13

Filing date

1962-11-05

Publication date

1974-03-15

1962-11-05 Application filed by Bpb Industries Ltd filed Critical Bpb Industries Ltd

1974-03-15 Publication of NL141481B publication Critical patent/NL141481B/nl

Links

238000001354 calcination Methods 0.000 title 1
PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title 1
238000000034 method Methods 0.000 title 1

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
- C01F11/466—Conversion of one form of calcium sulfate to another
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/001—Calcining
- B01J6/004—Calcining using hot gas streams in which the material is moved
- 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
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- 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
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/0281—Kettles; Marmites; Autoclaves

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Structural Engineering (AREA)
Materials Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Inorganic Chemistry (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Crucibles And Fluidized-Bed Furnaces (AREA)
Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Baking, Grill, Roasting (AREA)
Compositions Of Oxide Ceramics (AREA)

NL285104A 1961-11-13 1962-11-05 Werkwijze voor het calcineren van gips. NL141481B (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US15296861A	1961-11-13	1961-11-13

Publications (1)

Publication Number	Publication Date
NL141481B true NL141481B (nl)	1974-03-15

Family

ID=22545214

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NL285104D NL285104A (nl)	1961-11-13
NL285104A NL141481B (nl)	1961-11-13	1962-11-05	Werkwijze voor het calcineren van gips.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
NL285104D NL285104A (nl)	1961-11-13

Country Status (10)

Country	Link
BE (1)	BE624555A (nl)
CH (1)	CH394926A (nl)
DE (1)	DE1258321B (nl)
DK (1)	DK115723B (nl)
ES (1)	ES282399A1 (nl)
FI (1)	FI47343C (nl)
GB (1)	GB1018464A (nl)
LU (1)	LU42643A1 (nl)
NL (2)	NL141481B (nl)
SE (1)	SE323614B (nl)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1488665A (en) *	1973-11-27	1977-10-12	Bpb Industries Ltd	Calcining calcium sulphate dihydrate
US4161390A (en) *	1977-06-16	1979-07-17	United States Gypsum Company	Calcining kettle having multi-pass heating system
GB2001157B (en) *	1977-07-15	1982-07-07	Coal Ind	Improvements in or relating to fluidised beds
US4188186A (en) *	1978-06-22	1980-02-12	Combustion Engineering, Inc.	Automatic calcining kettle
ZA793953B (en) *	1978-08-08	1980-08-27	Coal Industry Patents Ltd	Heat treatment of material
IE49127B1 (en) *	1979-01-08	1985-08-07	Bpb Industries Ltd	Calcination method and apparatus
US4533528A (en) *	1983-07-15	1985-08-06	United States Gypsum Company	Process for continuously calcining gypsum to low dispersed consistency stucco
US4626199A (en) *	1985-04-25	1986-12-02	United States Gypsum Company	Submerged combustion calcination
GB8625964D0 (en) *	1986-10-30	1986-12-03	Bpb Industries Plc	Calcination apparatus
US5743954A (en) *	1995-02-02	1998-04-28	United States Gypsum Company	Method for continuous refractoryless calcining of gypsum
US5743728A (en) *	1995-08-15	1998-04-28	Usg Corporation	Method and system for multi-stage calcining of gypsum to produce an anhydrite product
US7175426B2 (en)	2004-02-27	2007-02-13	United States Gypsum Company	High efficiency refractoryless kettle
US7434980B2 (en)	2004-02-27	2008-10-14	United States Gypsum Company	Swinging agitator for a gypsum calcining apparatus and the like
NZ587328A (en) *	2008-02-19	2012-03-30	United States Gypsum Co	Method and apparatus for pressurized calcination of gypsum

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2485317A (en) *	1943-01-29	1949-10-18	Standard Oil Dev Co	Method of manufacturing plaster of paris
GB610439A (en) *	1946-04-05	1948-10-15	Reginald George Franklin	Improvements in and relating to the dehydration of particulate calcium sulphate
FR928217A (fr) *	1946-05-17	1947-11-21		Système et procédé de séchage ou de traitement thermique
GB855131A (en) *	1955-12-01	1960-11-30	Smidth & Co As F L	Improvements relating to apparatus and installations for the cooling of cement or other material which can be fluidised

0
- BE BE624555D patent/BE624555A/xx unknown
- NL NL285104D patent/NL285104A/xx unknown
1962
- 1962-10-16 GB GB3918662A patent/GB1018464A/en not_active Expired
- 1962-11-05 LU LU42643D patent/LU42643A1/xx unknown
- 1962-11-05 NL NL285104A patent/NL141481B/nl not_active IP Right Cessation
- 1962-11-06 CH CH1296362A patent/CH394926A/de unknown
- 1962-11-09 DK DK483362A patent/DK115723B/da unknown
- 1962-11-10 FI FI201562A patent/FI47343C/fi active
- 1962-11-12 ES ES282399A patent/ES282399A1/es not_active Expired
- 1962-11-13 SE SE1218062A patent/SE323614B/xx unknown
- 1962-11-13 DE DEB69612A patent/DE1258321B/de active Pending

Also Published As

Publication number	Publication date
DE1258321B (de)	1968-01-04
SE323614B (nl)	1970-05-04
BE624555A (nl)	1963-03-01
DK115723B (da)	1969-11-03
GB1018464A (en)	1966-01-26
ES282399A1 (es)	1963-02-01
FI47343B (nl)	1973-07-31
NL285104A (nl)
LU42643A1 (nl)	1963-01-05
FI47343C (fi)	1973-11-12
CH394926A (de)	1965-06-30

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Legal Events

Date	Code	Title	Description
1984-07-31	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: BPB INDUSTR
1984-09-17	V4	Lapsed because of reaching the maxim lifetime of a patent