The present invention relates to a fluidized bed reactor. The fluidized bed reactor includes: a catalyst bed; a dust collector provided in an upper portion of the fluidized bed reactor collecting catalyst particles in a gas discharged toward the upper portion of the fluidized bed reactor; and a filter portion provided in a region between the dust collector and the catalyst bed, wherein the filter portion includes a filtering screen and a plurality of conical caps coupled to the filtering screen.

The present invention relates to a fluidized bed reactor. The fluidized bed reactor includes: a catalyst bed; a dust collector provided in an upper portion of the fluidized bed reactor collecting catalyst particles in a gas discharged toward the upper portion of the fluidized bed reactor; and a filter portion provided in a region between the dust collector and the catalyst bed, wherein the filter portion includes a filtering screen and a plurality of conical caps coupled to the filtering screen.

A catalyst comprising molybdenum, bismuth, iron, and nickel, wherein a proportion of a surface concentration of the nickel to a bulk concentration of the nickel is 0.60 to 1.20.

A catalyst comprising molybdenum, bismuth, iron, and nickel, wherein a proportion of a surface concentration of the nickel to a bulk concentration of the nickel is 0.60 to 1.20.

A catalyst comprising Mo, Bi, and Fe, and satisfying, in an X-ray diffraction analysis, 0.10<P/R<0.18 and 0.06<Q/R<0.30 where P represents a peak intensity at 2θ=22.9±0.2°, Q represents a peak intensity at 2θ=28.1±0.1°, and R represents a peak intensity at 2θ=26.6±0.2°.

A catalyst comprising Mo, Bi, and Fe, and satisfying, in an X-ray diffraction analysis, 0.10<P/R<0.18 and 0.06<Q/R<0.30 where P represents a peak intensity at 2θ=22.9±0.2°, Q represents a peak intensity at 2θ=28.1±0.1°, and R represents a peak intensity at 2θ=26.6±0.2°.

The present disclosure relates to a method that includes polymerizing a nitrile with an acrylate ester to form a copolymer, in a mixture that includes water and an alcohol (R.sub.2—OH), according to the following reaction ##STR00001##
where R.sub.1 includes at least one of a first aliphatic group or hydrogen, R.sub.2 comprises at least one of a second aliphatic group or hydrogen, 100≤m≤4000, and 1≤n≤4000. In some embodiments of the present disclosure, the mixture may be an emulsion.

The present disclosure relates to a method that includes polymerizing a nitrile with an acrylate ester to form a copolymer, in a mixture that includes water and an alcohol (R.sub.2—OH), according to the following reaction ##STR00001##
where R.sub.1 includes at least one of a first aliphatic group or hydrogen, R.sub.2 comprises at least one of a second aliphatic group or hydrogen, 100≤m≤4000, and 1≤n≤4000. In some embodiments of the present disclosure, the mixture may be an emulsion.

In a process for the synthesis of a nitrile by endothermic catalyzed reaction of ammonia with a hydrocarbon using heating obtained by passing an alternating current through a metallic coil, the endothermic reaction between ammonia and the hydrocarbon takes place in a reactor with direct inductive heating in the reaction zone. The heating is extremely fast, which makes the reaction practically instantaneous.

In a process for the synthesis of a nitrile by endothermic catalyzed reaction of ammonia with a hydrocarbon using heating obtained by passing an alternating current through a metallic coil, the endothermic reaction between ammonia and the hydrocarbon takes place in a reactor with direct inductive heating in the reaction zone. The heating is extremely fast, which makes the reaction practically instantaneous.