4734271

Information

• Patent Grant
• 4734271

• References
• Source

• Patent Number

  4,734,271

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1988
  36 years ago

• CPC

  • C01G23/001 - Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
  • C01G23/0532 - by hydrolysing sulfate-containing salts
  • C22B3/0043 - using phosphorus-based acid derivatives
  • C22B3/0052 - Chalcogenides of phosphine
  • C22B3/0082 - two or more of the phosphine oxides or sulfides type
  • C22B3/0087 - two or more mononuclear oxyacids of quinquevalent phosphorus or their esters
  • C22B3/0091 - combinations of the above
  • C22B34/125 - containing a sulfur ion as active agent
  • Y02P10/234 - by hydro metallurgy