Miura Co., Ltd.

Other

Osaka Gas Company Limited

Hirofumi Nakamura

Katsuhisa Honda

Masazumi Yamashita

Noriaki Hamada

Kiyotaka Kobayashi

Hisaya Takahashi

Tominori Sato

Junichi Katayama

Masanobu Izaki

Hisaji Matsui

Osamu Kajikawa

Muneki Ohuchi

Toshiko Kajikawa

Takatomo Fujii

Mamoru Hatada

Susumu Fujita

Atsumi Matsumoto

The interior of a fractionating tool for fractionating dioxins is packed with a purification layer and an adsorption layer. The adsorption layer includes a first adsorption layer including an activated carbon-containing silica gel layer and a graphite-containing silica gel layer, and a second adsorption layer including an alumina layer. When a solution of dioxins is injected into the purification layer and is supplied with an aliphatic hydrocarbon solvent, the solvent dissolves dioxins in the solution of dioxins and passes through the purification layer and the adsorption layer. In this process, non-ortho PCBs, PCDDs and PCDFs among dioxins are adsorbed to the first adsorption layer, and mono-ortho PCBs among dioxins are adsorbed to the second adsorption layer. As a result, dioxins are fractionated into a group including non-ortho PCBs, PCDDs and PCDFs, and mono-ortho PCBs.

Method for fractionating dioxins

The collecting filter can capture and collect various chlorinated organic compounds in both particulate form and gaseous form contained in a fluid at the same time, and is easy to extract the collected chlorinated organic compounds therefrom. This collecting filteris provided with a fluid-permeable molded body containing fibers and an inorganic binder for binding the fibers to one another, and a hydrophobic material having higher hydrophobicity than that of the fibers and the inorganic binder, which is retained in the molded body. Various chlorinated organic compounds such as dioxins in both particulate form and gaseous form contained in the sample gas are captured and collected upon passage through the collecting filter

Filter for collecting chlorinated organic compound

A collectorcapable of collecting and sampling simultaneously various types of chlorinated organic compounds in both particulate and gaseous forms contained in a fluid and easy to extract the sampled chlorinated organic compounds therefrom includes a sampling filterinstalled in a holderhaving a discharge route. The sampling filtercontains fibers and an inorganic binder for binding the fibers to one another and has a fluid-permeability. Various types of the chlorinated organic compounds such as dioxins and coplanar PCBs in both particulate and gaseous forms contained in a sample gas flowing into the holderfrom a flue ductthrough a sampling pipeand an introduction pipeare collected and sampled while the sample gas being passed through the sampling filterand the resulting sample gas from which the chlorinated organic compounds are removed is then discharged out to the outside through the discharge route

Filter for sampling chlorinated organic compound

A method for forming a Cu interconnect pattern on a ZnO film of a printed circuit board without using a metallic catalyst on the ZnO film includes the steps of replacing Zn in the ZnO film by Cu in an aqueous solution of copper sulfate to form a CuO film, reducing the CuO in the CuO film to Cu in an aqueous solution of hydrogenated boron potassium to form a metallic Cu film, and plating the metallic Cu film with a plating Cu film in a plating liquid. The absence of the metallic catalyst improves the insulation resistance of the Cu interconnect pattern in the printed circuit board.

Method for forming a Cu interconnect pattern

A collector is provided which is capable of simultaneously capturing and collecting particulate and gaseous chlorinated organic compounds contained in a fluid. The collector includes a housing and a captor disposed within the housing . The captor includes a tubular porous core member of a sintered glass having one end closed with a close member , and a gas-permeable sheet fitted around the core member . The gas-permeable sheet is, for example, a paper-like sheet having a fibrous activated carbon and inorganic fibers. The particulate and gaseous chlorinated organic compounds contained in a gas sample flowing into the captor through a sampling tube are simultaneously collected and removed from the gas sample by the core member and the gas-permeable sheet , and the gas sample free from the chlorinated organic compounds is then discharged from an outlet port

Sampling bottle for chlorinated organic compounds

Growing community of inventors

Matsuyama, Japan

Hirofumi Nakamura