GB394033A - Improvements in and relating to the dehydration of gypsum - Google Patents
Improvements in and relating to the dehydration of gypsumInfo
- 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
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.
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)
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 |
-
1932
- 1932-01-05 GB GB29532A patent/GB394033A/en not_active Expired
Cited By (2)
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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