3255248

Information

• Patent Grant
• 3255248

• References
• Source

• Patent Number

  3,255,248

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1966
  58 years ago

• CPC

  • B01J37/18 - with gases containing free hydrogen
  • B01J23/34 - Manganese
  • B01J23/50 - Silver
  • B01J23/70 - of the iron group metals or copper
  • B01J37/08 - Heat treatment
  • B01J37/14 - with gases containing free oxygen
  • C07C209/36 - by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
  • C07C209/38 - by reduction of nitroso groups
  • C07C209/48 - by reduction of nitriles
  • C07C209/72 - by reduction of six-membered aromatic rings
  • C07C211/06 - containing only n- or iso-propyl groups
  • C07C211/10 - Diaminoethanes
  • C07C211/35 - containing only non-condensed rings
  • C07C211/51 - Phenylenediamines
  • C07C241/02 - Preparation of hydrazines
  • C07C243/14 - of a saturated carbon skeleton
  • C07C2101/14 - The ring being saturated
  • Y02P20/52 - using catalysts

• US Classifications

  • 564 - Organic compounds
  • 562 - Organic compounds