1897259

Information

• Patent Grant
• 1897259

• References
• Source

• Patent Number

  1,897,259

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1933
  91 years ago

• CPC

  • C04B11/032 - for the wet process, e.g. dehydrating in solution or under saturated vapour conditions
  • C04B2/10 - Preheating, burning calcining or cooling
  • C04B7/43 - Heat treatment
  • C04B11/028 - Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained

• US Classifications

  • 432 - Heating
  • 034 - Drying and gas or vapor contact with solids