Chiyoda Corporation

The University of Tokyo

Chikako Hashimoto

Yoichi Umehara

Zhixiong You

Takeshi Minami

Tetsuro Matsumura

Jun Matsumoto

Masakazu Sugiyama

Dai Takeda

Akihiro Mutou

Ryuichi Kanai

Yasuo Hosono

Chunji Yin

Katsushi Fujii

A vinylpyridine resin for a catalyst support; a method for producing thereof; and a catalyst for carbonylation of methanol are disclosed. The vinylpyridine resin has: content of nitrogen derived from a pyridine group of 3.00% by mass or more and 8.00% by mass or less; degree of crosslinking of 35% by mole or more and 70% by mole or less; molar ratio C/N of carbon atoms to nitrogen atoms of 12.00 or more and 36.00 or less; total pore volume of 0.20 cc/g or more and 0.45 cc/g or less; specific surface area of 70.0 m/g or more and 280 m/g or less; average pore diameter of 5.0 nm or more and 25.0 nm or less; and proportion of a volume of pores having a pore diameter of 10 nm or more to a volume of the whole pores of 4.0% or more and 90.0% or less.

Vinylpyridine resin for catalyst supports, production method therefor, and catalyst for methanol carbonylation reaction

The present invention provides a method of generating organic compounds and an organic-compound-generating system capable of efficiently generating organic-compounds even under a low-temperature environment by controlling a pH of an aqueous solution within a range from 5 to 10 during electrolysis in a case generating organic compounds by electrolyzing the aqueous solution containing carbon dioxide.

Method of generating organic compound and organic compound-generating system

A vinylpyridine resin that is hardly pulverized and thermally decomposed such that the degradation of the catalytic activity is suppressed while having a pore volume and a specific surface area to maintain a sufficient catalytic activity, and also a method of manufacturing the vinylpyridine resin are provided. The resin represents: a volume ratio of the pores having a diameter of 3 through 5 nm to all the pores of not less than 4% and not more than 60%; a total pore volume of not less than 0.15 cc/g and not more than 0.35 cc/g; and a specific surface area of not less than 20 m/g and not more than 100 m/g. The resin can be manufactured by using a poor solvent and not less than 50 wt % and not more than 90 wt % of a good solvent as porous agent.

Vinylpyridine resin for catalyst carriers and method of manufacturing the same

According to a method for producing acetic acid by carbonylation of methanol characterized in that an acid having an acid dissociation constant (pK) smaller than the constant of acetic acid is allowed to be present in the reaction system, acetic acid can be produced by the reaction of methanol and carbon monoxide in a reaction liquid in the presence of a solid catalyst containing rhodium and alkyl iodide, to achieve an enhanced reaction rate of carbonylation of methanol in producing acetic acid in the region at a high carbonylation degree (Ca&#x3e;0.8 mol/mol) for more efficient production of acetic acid.

Method of accelerating methanol carbonylation

Growing community of inventors

Yokohama, Japan

Chikako Hashimoto