US Patent Class 518
CHEMISTRY: FISCHER-TROPSCH PROCESSES; OR PURIFICATION OR RECOVERY OF PRODUCTS THEREOF




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Current as of: June, 1999
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  DF  CLASS NOTES
700  DF  LIQUID PHASE FISCHER-TROPSCH REACTION
701  DF  .~ Rhodium containing catalyst utilized
702  DF  WITH PRELIMINARY REACTION TO FORM HYDROGEN OR A CARBON OXIDE
703  DF  .~ Gaseous oxygen utilized in the preliminary reaction
704  DF  .~ Water utilized in the preliminary reaction
705  DF  TREATMENT OF FEED OR RECYCLE STREAM
706  DF  PLURAL ZONES EACH HAVING A FISCHER-TROPSCH REACTION
707  DF  .~ Diverse catalysts utilized in at least two zones
708  DF  .~ Water utilized
709  DF  INCLUDING REGENERATION OF CATALYST
710  DF  .~ Solvent utilized
711  DF  WATER UTILIZED DURING THE FISCHER-TROPSCH STEP OF THE PROCESS
712  DF  TEMPERATURE CONTROL OR REGULATION OF THE FISCHER-TROPSCH REACTION
713  DF  GROUP IB METAL CONTAINING CATALYST UTILIZED FOR THE FISCHER-TROPSCH REACTION (i.e., Cu, Ag, or Au)
714  DF  GROUP VIB METAL CONTAINING CATALYST UTILIZED FOR THE FISCHER-TROPSCH REACTION (i.e., Cr, Mo, or W)
715  DF  GROUP VIII METAL CONTAINING CATALYST UTILIZED FOR THE FISCHER-TROPSCH REACTION (i.e., Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, or Pt)
716  DF  .~ Rhodium containing catalyst
717  DF  .~ Group IA or IIA light metal containing material utilized during the Fischer Tropsch step of the process (i.e., Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, or Ba)
718  DF  .~.~ In the form of a salt
719  DF  .~ Iron containing catalyst
720  DF  .~.~ Pretreatment of the catalyst
721  DF  .~.~ The catalyst contains a metal in addition to the iron, or another material utilized contains a metal other than iron (e.g., as a promoter, retarder, etc.)
722  DF  ADSORPTION WITH A SOLID MATERIAL
723  DF  SALT CONTAINING EXTRACTANT UTILIZED
724  DF  SOLVENT EXTRACTION UTILIZED
725  DF  .~ Alcohol containing extractant utilized
726  DF  HYDROGENATION WITH GASEOUS HYDROGEN TO PURIFY OR RECOVER
727  DF  FORMING SALTS OR OXIMES OF OXYGEN CONTAINING COMPOUNDS TO PURIFY OR RECOVER
728  DF  MISCELLANEOUS