An improved catalyst comprising a mixed metal oxide, either promoted or not, is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an
An improved catalyst comprising a mixed metal oxide, either promoted or not, is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.
대표청구항▼
What is claimed is: 1. A process for producing an unsaturated carboxylic acid, which comprises subjecting an alkane or a mixture of an alkane and an alkene to a vapor phase catalytic oxidation reaction in the presence of a catalyst containing a mixed metal oxide having the empirical formula descr
What is claimed is: 1. A process for producing an unsaturated carboxylic acid, which comprises subjecting an alkane or a mixture of an alkane and an alkene to a vapor phase catalytic oxidation reaction in the presence of a catalyst containing a mixed metal oxide having the empirical formula description="In-line Formulae" end="lead"JjMmNnYyZzOo description="In-line Formulae" end="tail" wherein J is at least one element selected from the group consisting of Mo and W, M is at least one element selected from the group consisting of V and Ce, N is at least one element selected from the group consisting of Te, Sb and Se, Y is at least one element selected from the group consisting of Nb, Ta, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pt, Sb, Bi, B, In, As, Ge, Sn, Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra, Hf, Pb, P, Pm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu, and Z is selected from the group consisting of Ni, Pd, Cu, Ag and Au; and wherein, when j=1, m=0.01 to 1.0, n=0.01 to 1.0, y=0.01 to 1.0, z=0.001 to 0.1 and o is dependent on the oxidation state of the other elements, said catalyst composition having been formed from calcining an admixture including catalyst precursors and a source of NOx for improving catalytic performance. 2. The process according to claim 1, wherein said source of NOx is selected from nitric acid, ammonium nitrate, ammonium nitrite, NO, NO2 or a mixture thereof. 3. The process according to claim 1, wherein said source of NOx is nitric acid. 4. A process for producing an unsaturated nitrile, which comprises subjecting an alkane, or a mixture of an alkane and an alkene, and ammonia to a vapor phase catalytic oxidation reaction in the presence of a catalyst containing a mixed metal oxide having the empirical formula description="In-line Formulae" end="lead"JjMmNnYyZzOo description="In-line Formulae" end="tail" wherein J is at least one element selected from the group consisting of Mo and W, M is at least one element selected from the group consisting of V and Ce, N is at least one element selected from the group consisting of Te, Sb and Se, Y is at least one element selected from the group consisting of Nb, Ta, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pt, Sb, Bi, B, In, As, Ge, Sn, Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra, Hf, Pb, P, Pm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu, and Z is selected from the group consisting of Ni, Pd, Cu, Ag and Au; and wherein, when j=1, m=0.01 to 1.0, n=0.01 to 1.0, y=0.01 to 1.0, z=0.001 to 0.1 and o is dependent on the oxidation state of the other elements, said catalyst composition having been formed from calcining an admixture including catalyst precursors and a source of NOx for improving catalytic performance. 5. The process according to claim 4, wherein said source of NOx is selected from nitric acid, ammonium nitrate, ammonium nitrite, NO, NO2 or a mixture thereof. 6. The process according to claim 4, wherein said source of NOx is nitric acid.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (5)
Ushikubo Takashi (Yokohama JPX) Oshima Kazunori (Machida JPX) Kayo Atsushi (Kurashiki JPX) Umezawa Tiaki (Yokkaichi JPX) Kiyono Ken-ichi (Machida JPX) Sawaki Itaru (Yokohama JPX) Nakamura Hiroya (Yok, Catalyst for the production of nitriles.
Cirjak Larry M. ; Venturelli Anne ; Cassidy Timothy J.,GBX ; Pepera Marc A. ; Drenski Tama L., Gallium promoted molybdenum vanadium-antimony-oxide based catalyst for selective paraffin ammoxidation.
Midorikawa Hideo,JPX ; Sugiyama Naoki,JPX ; Hinago Hidenori,JPX, Process for producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation.
Brazdil, Jr., James Frank; Besecker, Charles James; Seely, Michael J.; Haddad, Muin S.; Toft, Mark A., Pre calcination additives for mixed metal oxide ammoxidation catalysts.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.