摘要:
A catalyst complex useful for the partial oxidation of alkanes to the corresponding anhydrides, e.g., converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase, comprising as components vanadium, phosphorus, oxygen, Nb, Cu, Mo, Ni, Co and Cr and one or more of Y, Sm, Tb or Eu. Preferred are those compositions containing in addition one or more of Ce, Nd, Ba, Hf, U, Ru, Re, Li or Mg.
摘要:
A catalyst complex useful for the partial oxidation of alkanes to the corresponding anhydrides, e.g., converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase, comprising as components vanadium, phosphorus, oxygen, Nb, Cu, Mo, Ni, Co and Cr. Preferred are those compostions containing in addition one or more of Ce, Nd, Ba, Hf, U, Ru, Re, Li or Mg.
摘要:
A vapor phase process for converting normal C.sub.4 hydrocarbons to maleic anhydride using novel catalyst compositions comprising as components vanadium, phosphorus, an element selected from the group of U, W, or a mixture of elements from the group Zn, Cr, U, W, Cd, Ni, B or Si.
摘要:
A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, an element selected from the group of U, W, or a mixture of elements from the group Zn, Cr, U, W, Cd, Ni, B or Si.
摘要:
A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, copper, an element selected from the Group of Te, Zr, Ni, Ce, W, Pd, Ag, Mn, Cr, Zn, Mo, Re, Sm, La, Hf, Ta, Th, Co, U, and Sn preferably with an alkali or alkaline earth metal.
摘要:
A catalyst complex useful for the partial oxidation of alkanes to the corresponding anhydrides, e.g., converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase, comprising as components vanadium, phosphorus, oxygen, Nb, Cu, Mo, Ni, Co and Cr. Preferred are those compositions containing in addition one or more of Ce, Nd, Ba, Hf, U, Ru, Re, Li or Mg.
摘要:
A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, copper, an element selected from the group of Te, Zr, Ni, Ce, W, Pd, Ag, Mn, Cr, Zn, Mo, Re, Sm, La, Hf, Ta, Th, Co, U, and Sn, preferably with an alkali or alkaline earth metal.
摘要:
Molybdenum - vanadium - oxygen oxidation catalyst for producing maleic anhydride from benzene is regenerated and stabilized by the addition of a compound of Mo, Ni, Co, Mn or U, preferably a volatile compound, to the catalyst, after a decline in activity.
摘要:
Molybdenum - vanadium - oxygen oxidation catalyst for producing maleic anhydride from benzene is regenerated and stabilized by the addition of a compound of Mo, Ni, Co, Mn or U, preferably a volatile compound, to the catalyst, after a decline in activity.
摘要:
A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, copper, an element selected from the group of Te, Zr, Ni, Ce, W, Pd, Ag, Mn, Cr, Zn, Mo, Re, Sm, La, Hf, Ta, Th, Co, U, and Sn, preferably with an alkali or alkaline earth metal.