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Class Number: 518
Class Title: CHEMISTRY: FISCHER-TORPSCH PROCESSES; OR PURIFICATION OR
RECOVERY OF PRODUCTS THEREOF
Subclass Subclass
Number Title
700 LIQUID PHASE FISCHER-TROPSCH REACTION
701 .Rhodium containing catalyst utilized
702 WITH PRELIMINARY REACTION TO FORM HYDROGEN OR A CARBON OXIDE
703 .Gaseous oxygen utilized in the preliminary reaction
704 .Water utilized in the preliminary reaction
705 TREATMENT OF FEED OR RECYCLE STREAM
706 PLURAL ZONES EACH HAVING A FISCHER-TROPSCH REACTION
707 .Diverse catalysts utilized in at least two zones
708 .Water utilized
709 INCLUDING REGENERATION OF CATALYST
710 .Solvent utilized
711 WATER UTILIZED DURING THE FISCHER-TROPSCH STEP OF THE PROCESS
712 TEMPERATURE CONTROL OR REGULATION OF THE FISCHER-TROPSCH
REACTION
713 GROUP IB METAL CONTAINING CATALYST UTILIZED FOR THE
FISCHER-TROPSCH REACTION (i.e., Cu, Ag, or Au)
714 GROUP VIB METAL CONTAINING CATALYST UTILIZED FOR THE
FISCHER-TROPSCH REACTION (i.e., Cr, Mo, or W)
715 GROUP VIII METAL CONTAINING CATALYST UTILIZED FOR THE
FISCHER-TROPSCH REACTION (i.e., Fe, Co, Ni, Ru, Rh, Pd, Os, Ir,
or Pt)
716 .Rhodium containing catalyst
717 .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 ..In the form of a salt
719 .Iron containing catalyst
720 ..Pretreatment of the catalyst
721 ..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 ADSORPTION WITH A SOLID MATERIAL
723 SALT CONTAINING EXTRACTANT UTILIZED
724 SOLVENT EXTRACTION UTILIZED
725 .Alcohol containing extractant utilized
726 HYDROGENATION WITH GASEOUS HYDROGEN TO PURIFY OR RECOVER
727 FORMING SALTS OR OXIMES OF OXYGEN CONTAINING COMPOUNDS TO PURIFY
OR RECOVER
728 MISCELLANEOUS