Director-general of Agency of Industrial Science and Technology

Other

Agency of Industrial Science and Technology

Gifu University

Yoshihiro Sugi

Yoshihiro Kubota

Kazuhiko Takeuchi

Takaaki Hanaoka

Takehiko Matsuzaki

Hironori Arakawa

Yoichi Nishimura

Yohei Kurata

Tadashi Narita

Tokio Hagiwara

Hiroyuki Asaga

Takahisa Misono

Yoshimoto Abe

Takehiko Mastuzaki

Taka-aki Hanaoka

Tatsuya Eto

Puspa Ratu

Hideaki Hamada

Provided is a catalyst composition for the isomerization of n-paraffin which comprises a &#x3b2;-zeolite having been synthesized according to a dry gel process and contains cerium, the &#x3b2;-zeolite being characterized in that it has an average particle diameter of 0.01&#x2dc;0.1 &#x3bc;m and the proportion of the cerium in the &#x3b2;-zeolite is within the range of 0.001&#x2dc;0.2 in terms of the atomic ratio of the silicon atom in the &#x3b2;-zeolite to the cerium atom, i.e. [Ce]/[Si] as well as a process for isomerizing n-paraffin which comprises bringing n-paraffin into contact with the catalyst composition as set forth above.

Catalyst composition for the isomerization of n-paraffin and a process for isomerizing n-paraffin

A process is provided for preparing zeolite, particularly &lsqb;Al&rsqb;-SSZ-31, which comprises the steps of providing a mixture of a zeolite source, an aluminum-containing material, an organic structure directing substance, preferably at least one selected from the group consisting of N,N&prime;-bis-triethyl-1,6-hexanediyl-diammonium dihydroxide, N,N&prime;-bis-triethyl-1,7-heptanediyl-diammonium dihydroxide, N,N&prime;-bis-triethyl-1,8-octanediyl-diammonium dihydroxide, N,N&prime;-bis-triethyl-1,9-nonanediyl-diammonium dihydroxide, N,N&prime;-bis-triethyl-1,10-decanediyl-diammonium dihydroxide, and their salts, and water; drying said mixture to form a powdered dry gel; and contacting and reacting said dry gel with steam at a saturated vapor pressure to produce an aluminum-containing zeolite &lsqb;Al&rsqb;-SSZ-31.

Preparation of zeolite

There is disclosed a method for producing aromatic polyamides represented by the following formula (III), which comprises reacting an aromatic dihalogen compound represented by the following formula (I) with a diamine compound represented by the following formula (II) in the presence of cobalt/phosphine complex and a basic substance under carbon monoxide atmosphere:

Method for synthesizing aromatic polymers

A catalyst for hydroformylation of an olefin with H.sub.2 and CO is disclosed which includes an inorganic oxide carrier, and two or more catalytic metal components supported on the carrier, the metals of said catalytic metal components being cobalt and at least one auxiliary metal selected from rhodium, ruthenium, rhenium, iridium, platinum, palladium, copper, osmium and gold. By contacting a feed of an olefin, H.sub.2 and CO with the catalyst, the olefin is converted into an aldehyde and an alcohol.

Catalyst for producing aldehyde and alcohol from olefin, carbon monoxide

A process for the preparation of cyclooctene which comprises irradiating 1,5-cyclooctadiene with light in the presence of a photodehydrogenation catalyst, acetone and an alcohol to partially hydrogenate the 1,5-cyclooctadiene.

Process for the preparation of cyclooctene

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Tsukuba, Japan

Yoshihiro Sugi