Abstract: The present invention relates to a sold catalyst for manufacturing of a nitrile compound and a method of preparation thereof. More particularly, this invention relates to the solid catalyst expressed by the following formula (1): BiaAaBbQqOx][(100-z) % DdEeFefNigMomOy+z % SiO2] comprising a core catalytic phase expressed by [(100-z) %=DdEeFefNigMomOy+z % SiO2] and a shell catalytic phase expressed by [BinAaBbQqOx], which increases a yield in the manufacturing of a nitrile compound via ammoxidation of olefin, and the method of preparation thereof.

Abstract: The present invention relates to a process for preparing acrolein by the oxidation of propylene and more particularly, to the process for preparing acrolein in the presence of a solid catalyst having core-shell structure represented in the formula 1, [BinAaOx][(100-z)%EeFe1NigMomOy+z%SiO2]  (1) wherein A is at least one element selected from the group consisting of boron, phosphorus, and molybdenum; E is at least one element having the atomic valence of 2; when m is 1, n is 0.001-3, a is 0-3, e is 0-3, f is 0.01-5, g is 0.1-5, and z is 0-90; and x and y are numbers such that the valence requirements of the other elements for Oxygen in the core and shell catalytic phase, respectively, are satisfied.

Abstract: This invention relates to a solid catalyst having the following formula for preparing nitrites and its preparation, in particular which contains molybdenum and phosphorus, etc. as main component which can improve the conversion and the selectivity in case of using as a catalyst during the process for preparing a heteroaromatic nitriles.Mo.sub.x P.sub.y O.sub.z X Ywherein,Mo is molybdenum;P is phosphorus;O is oxygen;X is ammonium salt or ion;Y is water; andx,y and z are respectively a number of atom, wherein y/x is 0.01.about.5 and z is 0.01.about.10.

Abstract: This invention relates to a vapor phase process for preparing cyanopyrazine, in particular which is reacting 2-methylpyrazine with ammonia and oxygen over molybdenum-phosphorus oxide-based catalyst of the following formula having the high selectivity and conversion.Mo.sub.x.P.sub.y.O.sub.z.X.Ywherein,Mo is molybdenum;P is phosphorus;O is oxygen;X is ammonium ion;Y is water; andx,y and z are respectively the numbers of atoms Mo, P and O, wherein y/x is 0.01 to 5 and z is 0.01 to 10.