Title:
METHOD FOR FRACTIONATING DIOXIN-TYPE COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2020/149255
Kind Code:
A1
Abstract:
A treatment layer (240) containing activated magnesium silicate as an adsorbent and an alumina layer (250) located below the treatment layer (240) are arranged in the inside of a standing tubular body (210). A dioxin-type compound solution is added to the inside of the tubular body (210) from a top part of the tubular body (210), and subsequently an aliphatic hydrocarbon solvent is fed to the inside of the tubular body (210) from the top part of the tubular body (210). The aliphatic hydrocarbon solvent in which dioxin-type compounds in the dioxin-type compound solution are dissolved passes through the treatment layer (240) and the alumina layer (250) in this order, and is discharged from a lower part of the tubular body (210). In this procedure, dioxins including non-ortho PCBs, PCDDs and PCDFs in the aliphatic hydrocarbon solvent are trapped selectively in the treatment layer (240), and mono-ortho PCBs in the solvent are selectively trapped in the alumina layer (250).
Inventors:
FUJITA HIROYUKI (JP)
SUGA KOICHI (JP)
SUGA KOICHI (JP)
Application Number:
PCT/JP2020/000863
Publication Date:
July 23, 2020
Filing Date:
January 14, 2020
Export Citation:
Assignee:
MIURA KOGYO KK (JP)
International Classes:
G01N30/88; B01D15/00; B01J20/08; B01J20/10; B01J20/20; B01J20/282; B01J20/283; B01J20/284; B01J20/30; B01J20/34; G01N30/26; G01N30/46
Foreign References:
| JP2015190962A | 2015-11-02 | |||
| JP2003225507A | 2003-08-12 | |||
| JP2006313125A | 2006-11-16 | |||
| JP2004508539A | 2004-03-18 | |||
| JP2019006673A | 2019-01-17 | |||
| JP2002040007A | 2002-02-06 | |||
| JP2006297368A | 2006-11-02 |
Other References:
ROSZKO MAREK ET AL.: "Separation of polychlorinated dibenzo-p-dioxins/ furans, non-ortho/mono/di/tri/tetra-ortho-polychlorinated biphenyls, and polybrominated diphenyl ethers groups of compounds prior to their determination with large volume injection gas chromatography-Quadrupole ion storage tandem mass spectrometry", ANALYTICA CHIMICA ACTA, vol. 799, 17 October 2013 (2013-10-17), pages 88 - 98, XP028739742, DOI: 10.1016/j.aca.2013.08.053
LIU HANXIA ET AL.: "Separation of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzo- furans in environmental samples using silica gel and florisil fractionatior chromatography", ANALYTICA CHIMICA ACTA, vol. 557, 31 January 2006 (2006-01-31), pages 314 - 320, XP027912471
TOSHIAKI KOIZUMI, HIROZO YOSHIMURA: "Pre-treatment of polychlorinated biphenyl analysis in mineral oils or oily waste muds", BUNSEKI KAGAKU, vol. 34, no. 11, 5 November 1985 (1985-11-05), pages T143 - T147, XP055831424, ISSN: 0525-1931, DOI: 10.2116/bunsekikagaku.34.11_T143
See also references of EP 3913362A4
LIU HANXIA ET AL.: "Separation of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzo- furans in environmental samples using silica gel and florisil fractionatior chromatography", ANALYTICA CHIMICA ACTA, vol. 557, 31 January 2006 (2006-01-31), pages 314 - 320, XP027912471
TOSHIAKI KOIZUMI, HIROZO YOSHIMURA: "Pre-treatment of polychlorinated biphenyl analysis in mineral oils or oily waste muds", BUNSEKI KAGAKU, vol. 34, no. 11, 5 November 1985 (1985-11-05), pages T143 - T147, XP055831424, ISSN: 0525-1931, DOI: 10.2116/bunsekikagaku.34.11_T143
See also references of EP 3913362A4
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