FR1228722A - Device for dewatering raw gypsum - Google Patents

Device for dewatering raw gypsum

Info

Publication number
FR1228722A
FR1228722A FR798657A FR798657A FR1228722A FR 1228722 A FR1228722 A FR 1228722A FR 798657 A FR798657 A FR 798657A FR 798657 A FR798657 A FR 798657A FR 1228722 A FR1228722 A FR 1228722A
Authority
FR
France
Prior art keywords
raw gypsum
dewatering raw
dewatering
gypsum
raw
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
FR798657A
Other languages
French (fr)
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.)
Gebr Pfeiffer Barbarossawerke AG
Original Assignee
Gebr Pfeiffer Barbarossawerke 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
Application filed by Gebr Pfeiffer Barbarossawerke AG filed Critical Gebr Pfeiffer Barbarossawerke AG
Application granted granted Critical
Publication of FR1228722A publication Critical patent/FR1228722A/en
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
    • 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
    • C04B11/036—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln, i.e. to obtain beta-hemihydrate
FR798657A 1958-06-26 1959-06-26 Device for dewatering raw gypsum Expired FR1228722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1228722X 1958-06-26

Publications (1)

Publication Number Publication Date
FR1228722A true FR1228722A (en) 1960-09-02

Family

ID=7734766

Family Applications (1)

Application Number Title Priority Date Filing Date
FR798657A Expired FR1228722A (en) 1958-06-26 1959-06-26 Device for dewatering raw gypsum

Country Status (1)

Country Link
FR (1) FR1228722A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445940A1 (en) * 1979-01-02 1980-08-01 Kloeckner Humboldt Deutz Ag Roasting of minerals, esp. gypsum, in multistorey furnace - which is divided into low temp. calcining zone and high temp. calcining zone with separate inlets and outlets
EP0277208A1 (en) * 1986-08-14 1988-08-10 United States Gypsum Co Highly efficient calcination of gypsum to hemihydrate.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445940A1 (en) * 1979-01-02 1980-08-01 Kloeckner Humboldt Deutz Ag Roasting of minerals, esp. gypsum, in multistorey furnace - which is divided into low temp. calcining zone and high temp. calcining zone with separate inlets and outlets
EP0277208A1 (en) * 1986-08-14 1988-08-10 United States Gypsum Co Highly efficient calcination of gypsum to hemihydrate.
EP0277208A4 (en) * 1986-08-14 1988-11-28 United States Gypsum Co Highly efficient calcination of gypsum to hemihydrate.

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