GB394033A - Improvements in and relating to the dehydration of gypsum - Google Patents

Improvements in and relating to the dehydration of gypsum

Info

Publication number
GB394033A
GB394033A GB29532A GB29532A GB394033A GB 394033 A GB394033 A GB 394033A GB 29532 A GB29532 A GB 29532A GB 29532 A GB29532 A GB 29532A GB 394033 A GB394033 A GB 394033A
Authority
GB
United Kingdom
Prior art keywords
gypsum
dehydration
relating
ball mill
heated
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
GB29532A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB29532A priority Critical patent/GB394033A/en
Publication of GB394033A publication Critical patent/GB394033A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

<PICT:0394033/III/1> Gypsum is roughly ground and then simultaneously ground and dehydrated in a heated ball mill. Plaster of Paris is obtained at temperatures of about 300 DEG F., and the remaining water of crystallization may be removed by using higher temperatures. The ball mill a may be enclosed in a brick chamber d so that it may be easily heated, or alternatively it may be jacketed. Steam is removed through a tube e, the inner end e<2> of which is bent upwardly as shown.
GB29532A 1932-01-05 1932-01-05 Improvements in and relating to the dehydration of gypsum Expired GB394033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29532A GB394033A (en) 1932-01-05 1932-01-05 Improvements in and relating to the dehydration of gypsum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29532A GB394033A (en) 1932-01-05 1932-01-05 Improvements in and relating to the dehydration of gypsum

Publications (1)

Publication Number Publication Date
GB394033A true GB394033A (en) 1933-06-22

Family

ID=9701854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29532A Expired GB394033A (en) 1932-01-05 1932-01-05 Improvements in and relating to the dehydration of gypsum

Country Status (1)

Country Link
GB (1) GB394033A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640572A1 (en) * 1993-08-27 1995-03-01 BPB INDUSTRIES public limited company Method and apparatus for heating and grinding materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640572A1 (en) * 1993-08-27 1995-03-01 BPB INDUSTRIES public limited company Method and apparatus for heating and grinding materials
US5580002A (en) * 1993-08-27 1996-12-03 Bpb Industries Public Limited Company Method and apparatus for heating and grinding materials

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