2769706

Information

• Patent Grant
• 2769706

• References
• Source

• Patent Number

  2,769,706

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1956
  68 years ago

• CPC

  • C22B23/025 - with formation of a matte or by matte refining or converting into nickel or cobalt
  • C22B4/00 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
  • C22B5/02 - Dry methods smelting of sulfides or formation of mattes
  • C22B11/02 - by dry processes
  • C22B13/02 - by dry processes
  • C22B15/0039 - in electric furnaces

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 373 - Industrial electric heating furnaces