3664809

Information

• Patent Grant
• 3664809

• References
• Source

• Patent Number

  3,664,809

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1972
  52 years ago

• CPC

  • C01F7/10 - by treating aluminous minerals with alkali sulfates and reducing agents
  • C01B17/164 - Preparation by reduction of oxidic sulfur compounds
  • C01D7/00 - Carbonates of sodium, potassium or alkali metals in general

• US Classifications

  • 423 - Chemistry of inorganic compounds