In a fixed-bed flow reaction using a multitubular heat exchange type reactor, an object of the present invention is to provide a novel packing for a reaction tube, which can control the reaction ratio in the vicinity of the reaction tube inlet, reduce the load unevenly placed on the catalyst in the reaction region, and distribute the load on the entire catalyst layer, a heat exchange type reactor, and a reaction method using the reaction tube. The packing for a reaction tube of the present invention is characterized in that the volume is continuously or step-by-step decreased from one end part or midway toward the other end part.

In a fixed-bed flow reaction using a multitubular heat exchange type reactor, an object of the present invention is to provide a novel packing for a reaction tube, which can control the reaction ratio in the vicinity of the reaction tube inlet, reduce the load unevenly placed on the catalyst in the reaction region, and distribute the load on the entire catalyst layer, a heat exchange type reactor, and a reaction method using the reaction tube. The packing for a reaction tube of the present invention is characterized in that the volume is continuously or step-by-step decreased from one end part or midway toward the other end part.

The present invention relates to a process for producing cumene and/or sec-butylbenzene comprising contacting benzene with a mixed olefins stream comprising ethylene and an alkylation agent in the presence of a selective alkylation catalyst under selective alkylation conditions.

The present invention relates to a process for producing cumene and/or sec-butylbenzene comprising contacting benzene with a mixed olefins stream comprising ethylene and an alkylation agent in the presence of a selective alkylation catalyst under selective alkylation conditions.

Provided is a process for recovery of a functionalized compound reaction product comprising contacting (i) an oxidizing electrophile comprising a main group element, and (ii) a compound comprising at least one CH bond, in an acidic medium to form a reaction milieu comprising a functionalized compound reaction product, contacting the reaction milieu with a water-immicible organic solvent, separating the water-immiscible organic solvent from the reaction milieu, wherein the functionalized compound reaction product is dissolved in the water-immiscible organic solvent, and separating the functionalized compound reaction product and the water-immiscible organic solvent. The water-immiscible extraction solvent can be the same compound as the compound comprising as least one CH bond, for example, propane or n-butane.

The present invention relates to a process for hydroxylation of a compound of formula (I) by reacting the compound of formula (I) with an oxidizing agent, in the presence of a titanium silicalite zeolite prepared by crystallization preceded by a maturing step. The present invention also relates to a titanium silicalite zeolite and to the process for preparing same.

The present invention relates to a process for hydroxylation of a compound of formula (I) by reacting the compound of formula (I) with an oxidizing agent, in the presence of a titanium silicalite zeolite prepared by crystallization preceded by a maturing step. The present invention also relates to a titanium silicalite zeolite and to the process for preparing same.

The present invention relates to a process for hydroxylation of a compound of formula (I) by reacting the compound of formula (I) with an oxidizing agent, in the presence of a titanium silicalite zeolite prepared by crystallization preceded by a maturing step. The present invention also relates to a titanium silicalite zeolite and to the process for preparing same.

The present invention relates to a process for hydroxylation of a compound of formula (I) by reacting the compound of formula (I) with an oxidizing agent, in the presence of a titanium silicalite zeolite prepared by crystallization preceded by a maturing step. The present invention also relates to a titanium silicalite zeolite and to the process for preparing same.

Process for the production of phenol, said process comprising the steps of: (A) producing ethanol from a biomass, which is advantageously a carbohydrate-containing biomass, then (B) causing the ethanol produced at the step (A) to react with methanol, so as to produce benzyl alcohol and/or benzaldehyde, then (C) causing the benzyl alcohol and/or benzaldehyde produced at the step (B) to react with oxygen, so as to produce benzoic acid, then (D) causing the benzoic acid produced at the step (C) to react with oxygen, so as to produce phenol. Use of no more than 20 parts by weight of a carbohydrate contained in a biomass for the production of one part of phenol.