3380804

Information

• Patent Grant
• 3380804

• References
• Source

• Patent Number

  3,380,804

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1968
  57 years ago

• CPC

  • D01F13/02 - of cellulose, cellulose derivatives or proteins
  • B01J49/0008 - containing cationic exchangers
  • C01G9/003 - Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
  • C22B3/42 - by ion-exchange extraction
  • C22B19/26 - Refining solutions containing zinc values
  • Y02P10/234 - by hydro metallurgy
  • Y02P70/627 - of cellulose, cellulose derivatives or proteins

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 210 - Liquid purification or separation
  • 264 - Plastic and nonmetallic article shaping or treating: processes