Mitsui Chemicals, Inc.

Masami Murakami

Naoya Takahashi

Kazuo Kohmura

Kenji Iwata

Takeshi Kubota

Ryo Niishiro

Kenichi Sugimoto

Nobuhiko Horiuchi

Yuya Goto

Shunsuke Oike

Yoshito Kurano

Takashi Nabeta

Ken Maeda

Shinichiro Ichikawa

Akihiro Okabe

Masaki Yoshinaga

Hideharu Kuwamoto

Jun Kawahara

Kazuo Komura

Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO(wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BX (wherein, B represents Na or K; X represents CO, SO, SiO, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100&#xb0; C. to 500&#xb0; C. and an atmosphere that contains water vapor in an amount of from 1.0 g/mto 750,000 g/mand thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).

Method for producing porous molded body, method for producing catalyst for &#x3b1;-olefin dimerization, method for producing &#x3b1;-olefin dimer, porous molded body, and catalyst for &#x3b1;-olefin dimerization

A porous formed body (Y) including a porous formed body (X) that satisfies the following (x-1) to (x-3), and an alkali metal carbonate or an alkali metal bicarbonate, in which a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X), and a production method thereof, an &#x3b1;-olefin dimerization catalyst and a production method thereof, and a method of producing an &#x3b1;-olefin dimer:

Porous formed body and production method thereof, &#x3b1;-olefin dimerization catalyst and production method thereof, and method of producing &#x3b1;-olefin dimer

The method for producing chlorine by oxidation of hydrogen chloride with oxygen in the presence of a catalyst in a fixed-bed reactor, wherein [I] a material containing hydrogen chloride and oxygen is allowed to contact a catalyst in a temperature range of 280 to 370&#xb0; C., and [II] the material containing hydrogen chloride and oxygen has an oxygen concentration of 45 to 75 vol %.

Method for producing chlorine by oxidation of hydrogen chloride

Provided is a formed body containing at least one carbonate compound (A1) selected from NaCOor KCO, the formed body having a volume of pores with a pore diameter of from 0.05 &#x3bc;m to 10 &#x3bc;m of from 0.10 mL/g to 0.30 mL/g and a crushing strength of from 1.8 kgf to 10.0 kgf.

Formed body and method for producing the same, &#x3b1;-olefin dimerization catalyst, and method for producing &#x3b1;-olefin dimer

[Problem] The present invention is to provide a catalyst used for a process for preparing methanol from carbon dioxide and hydrogen and the catalyst has high activity and excellent stability with the passage of time in reactivity. [Solution] The catalyst comprises copper, zinc, aluminum and silicon, and has a molar ratio of zinc to copper of 0.5 to 0.7, a molar ratio of silicon to copper of 0.015 to 0.05, a maximum intensity ratio of a peak derived from zinc to a peak derived from copper of not more than 0.25 and a half-value width (2&#x3b8;) of the peak derived from copper of 0.75 to 2.5. The process for producing methanol comprises using the catalyst.

Catalyst for methanol production, method of producing the same and process of methanol production

The invention provides a chlorine production catalyst that shows excellent reaction activity in the oxidation reaction of hydrogen chloride with oxygen into chlorine, is inexpensive and can be supplied stably, and is suited for use in a fluidized-bed reactor. The invention also provides a chlorine production process using the catalyst. The chlorine production catalyst of the invention includes spherical particles containing copper element (A), an alkali metal element (B) and a lanthanoid element (C) and having an average sphericity of not less than 0.80. The lanthanoid element (C) has a bond dissociation energy with oxygen at 298 K of 100 to 185 kcal/mol. The content of the copper element (A) in the catalyst is 0.3 wt % to 4.5 wt %.

Chlorine production catalyst and chlorine production process using the catalyst

There is provided by the present invention a process for preparing a copper-based catalyst having good catalytic activity, markedly excellent durability and good reproducibility. The process for preparing a copper-based catalyst of the invention is a process for preparing a catalyst composed of metal oxides containing copper oxide as an essential component and is characterized by comprising the following steps: (1) a step of bringing an acidic metal salt solution containing copper and a precipitant solution into contact with each other to obtain a slurry solution containing a precipitate of a catalyst precursor, and (2) a step of continuously bringing the slurry solution and a wash liquid into contact with each other to wash the precipitate, with substantially keeping the suspended state.

Process for preparing copper-based catalyst, copper-based catalyst, and pretreatment method of the same

A catalyst has high activity and is suitable for use in producing chlorine by oxidizing hydrogen chloride with oxygen. The catalyst includes copper, an alkali metal and a rare earth and has pores of which pores having a diameter of 5 to 15 nm have a pore volume of 0.4 to 2.0 ml/g.

Catalyst and production process thereof, and chlorine production using the catalyst

The present invention relates to a method for modifying a porous film mainly having Si&#x2014;O bonds wherein a thermal treatment is conducted without using a metal catalyst by bringing an organic silicon compound into contact with the porous film. The organic silicon compound includes one or more Si&#x2014;X&#x2014;Si bond unit (wherein X represents O, NR, CH, or CH; R represents CHor CH; m is an integer between 1 and 6; and n is 1 or 2) and two or more Si-A bond units (wherein A represents H, OH, OCHor a halogen atom and can be the same or different within a single molecule; and e is an integer between 1 and 6). Since the porous film obtained by this method is excellent in the hydrophobic property and the mechanical strength, it can be used as an optically functional material or an electronically functional material. The porous film is especially useful as a semiconductor material, and can be preferably used as an interlayer insulating film in a semiconductor device.

Method of modifying porous film, modified porous film and use of same

The coating liquid for forming porous silica according to the present invention is characterized by preferably containing a partial hydrolysis-condensation product of an alkoxysilane compound, a surfactant and an organic ampholyte, and by having a metal content of not more than 50 ppb. Conventional coating liquids for forming porous silica have such a problem that porous silica films formed therefrom may have poor regularity in micropore alignment when the shelf life of the coating liquids are long. On the contrary, the coating liquid for forming porous silica of the present invention is excellent in self-life stability. Namely, the quality of porous silica formed therefrom is hardly affected by the length of self-life period of the coating liquid. Consequently, the coating liquid is expected to contribute to the stable preparation of porous silica films which cause no shift in capacitance or voltage when exposed to an electric field, have regularly aligned uniform micropores, and are preferably used as an optically functional material or an electronically functional material.

Coating liquid for forming porous silica

Water-repellent porous silica having uniform pores, which comprises silica skeleton wherein fluorine atoms are fixed through covalent bonds and which has an alkali metal content of not more than 10 ppb, is synthesized. By the water-repellent porous silica, a water-repellent porous silica film having uniform pores, which is applicable to a light functional material or an electron functional material, a process for preparing the same and uses thereof can be provided.

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Ichihara, Japan

Masami Murakami