TH677A - Improving Calcium Sulfate Dihydrate Method - Google Patents
Improving Calcium Sulfate Dihydrate MethodInfo
- Publication number
- TH677A TH677A TH8101000280A TH8101000280A TH677A TH 677 A TH677 A TH 677A TH 8101000280 A TH8101000280 A TH 8101000280A TH 8101000280 A TH8101000280 A TH 8101000280A TH 677 A TH677 A TH 677A
- Authority
- TH
- Thailand
- Prior art keywords
- hook
- gas
- gypsum
- moisture
- calcium sulfate
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 6
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title abstract 2
- 229910052602 gypsum Inorganic materials 0.000 claims abstract 6
- 239000010440 gypsum Substances 0.000 claims abstract 6
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000005507 spraying Methods 0.000 claims abstract 2
- 238000001354 calcination Methods 0.000 claims 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 230000002308 calcification Effects 0.000 abstract 2
- 229910052925 anhydrite Inorganic materials 0.000 abstract 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 1
- 238000002716 delivery method Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000011505 plaster Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Abstract
วิธีการและเครื่องมือสำหรับกระทำการแคลซิเนชั่นแบบต่อเนื่อง เพื่อเปลี่ยนแคลเซียมซัลเฟท ไดไฮเดรท (ยิบซั่ม) ไป เป็นเฮมิไฮเดรทพลาสเตอร์ โดยวิธีให้ความร้อนที่อุณหภูมิสูง เพียงพอที่จะเกิดการแคลซิเนชั่น แก่ยิบซั่มเบ็ด ซึ่งบรรจุ ในภาชนะวิธีหนึ่งเป็นการส่ง แกสร้อนเข้าเบ็ดตลอดเวลาพ่น ความชื้น (ตัวอย่าง เช่น ให้ในรูปของหยดน้ำ หรือไอน้ำ) เข้าในเฟสแกส (ตัวอย่างเช่น เข้าในแกสร้อนก่อนสัมผัสกับ เบ็ด และ/หรือ เข้าไปในแกสใช้แล้วที่ปล่อยออกมาซึ่งเหนือ เบ็ด) เพื่อลดอัตราการผลิตแอนไฮไดรท์ที่ไม่ละลาย Methods and tools for conducting continuous calcification To convert calcium sulphate dihydrate (gypsum) into hemihydrate plaster. By the method of heating at high temperature Enough to cause calcification To the gypsum hook which is packed in a container as a delivery method The gas is constantly hot onto the hook, spraying moisture (for example, in the form of water droplets or steam) into the gas phase (for example, Into hot gas before contact with the hook and / or into the released spent gas above the hook) to reduce the production of non-melting anhydrite.
Claims (4)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TH677A true TH677A (en) | 1982-11-12 |
Family
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