Nippon Shokubai Co., Ltd.

Atsushi Tachibana

Toshimitsu Moriguchi

Hiroko Izumi

Kenji Kadonaga

Hideaki Tsuneki

Masazumi Sasabe

Yoshihiko Masuda

Seiji Kato

Izuho Okada

Tomoharu Oku

Masanori Nonoguchi

Mitsuaki Makino

Tomomasa Kaneko

Makoto Saito

Takeo Akatsuka

Hironori Horie

Shigeru Oka

Yasuhiro Mimura

An &#x3b1;-(unsaturated alkoxyalkyl)acrylate composition is provided which enables an &#x3b1;-(unsaturated alkoxyalkyl)acrylate product to be stored at a high purity for an extended period of time and can fully suppress problems such as discoloration and gelation from arising during polymerization, and a method of safely preparing &#x3b1;-(unsaturated alkoxyalkyl)acrylate compositions industrially, with high purity. The composition includes an &#x3b1;-(unsaturated alkoxyalkyl)acrylate of a specific structure and an antioxidant, the content of the antioxidant being from 0.03 to 0.5 wt % per 100 wt % of the &#x3b1;-(unsaturated alkoxyalkyl)acrylate.

&#x3b1;-(unsaturated alkoxyalkyl) acrylate composition and process for production thereof

An object of the present invention is to provide a waste solution solidifying agent which can solidify a waste solution, particularly, a waste solution containing blood or body fluid at a low cost, uniformly, and in a short time; in particular, to provide a waste solution solidifying agent which can solidify a waste solution uniformly and in a short time in a vertically oriented waste solution equipment. As a means of achieving this object, a waste solution solidifying agent of the present invention is a particulate treating agent used in a method of treating a waste solution which solidifies a waste solution into a gel by placing a treating agent in a waste solution, and is characterized in that said agent contains, as an essential component, a water-absorbent resin having a crosslinked structure obtained by polymerizing a water-soluble ethylenic unsaturated monomer and, when flowing-placed at once into a 0.90 mass % aqueous sodium chloride solution, 20 to 95 mass % of the agent is floated, and 80 to 5 mass % is settled. And a process for preparing a waste solution solidifying agent of the present invention is a process for preparing a particulate waste solution solidifying agent containing, as an essential component, a water-absorbent resin having a crosslinked structure obtained by polymerizing a water-soluble ethylenic unsaturated monomer, and comprises a step of mixing a hydrophobic substance having a methanol index of 20 or more after polymerization.

Waste solution solidifying agent, process for preparing the same and use of the same

In the method of the present invention for producing fatty acid alkyl ester and/or glycerin, as a heat source for an alcohol refining step of refining alcohol from unreacted alcohol that remains without reacting in a first reaction step, at least a part of heat of the unreacted alcohol is used. This allows reducing costs in production of fatty acid alkyl ester and/or glycerin over a solid catalyst.

Method for producing fatty acid alkyl ester and/or glycerin

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Suita, Japan

Atsushi Tachibana