Degradation of polychlorobiphenyls with potassium carbonate in supercritical water

被引：1

作者：

Akiyama, F ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2003年 / 76卷 / 03期

关键词：

D O I：

10.1246/bcsj.76.567

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The degradation processes of 2,2',5,5'-tetrachlorobiphenyl (4Cl-B) and 2,2',4,4',5,5'-hexachlorobiphenyl (6Cl-B) with potassium carbonate in supercritical water at 500degreesC were studied. Hydrocarbons containing methane as major component were formed in the yield of around 15%. The main reaction product is considered to be inorganic salts, which do not show any NMR spectra and are easily decomposed by dilute acid.

引用

页码：567 / 568

页数：2

共 9 条

[1] Degradation of mixed char of poly(vinyl chloride) with polyethylene glycol to give hydrocarbons by the reaction with potassium carbonate in supercritical water: Formation of hydrocarbons containing lower amounts of benzene accompanied by formation of water soluble potassium salts of carbon oxides [J].

Akiyama, F .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2002, 75 (04) :871-875

[2] Degradation of 4-chlorobiphenyl as a model compound of polychlorinated biphenyls with potassium carbonate in supercritical water in the presence or absence of copper(II) oxide [J].

Akiyama, F .

NIPPON KAGAKU KAISHI, 2001, (10) :595-599

[3]

ANJOH N, 1997, ENVIRON MANAGE, V33, P895

[4] Dechlorination of polychlorinated biphenyls: A kinetic study of removal of PCBs from mineral oils [J].

De Filippis, P ;

Scarsella, M ;

Pochetti, F .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (02) :380-384

[5] Catalytic dehydrohalogenation of polychlorinated biphenyls - Part II: Studies on a continuous process [J].

Forni, P ;

Prati, L ;

Rossi, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1997, 14 (1-2) :49-53

[6] GAS-PHASE HYDROGENOLYSIS OF POLYCHLOROBIPHENYLS [J].

MANION, JA ;

MULDER, P ;

LOUW, R .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1985, 19 (03) :280-282

[7] MASS-SPECTRA OF POLYCHLORINATED BIPHENYLS [J].

SAFE, S ;

HUTZINGER, O .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1972, (05) :686-+

[8] Dechlorination of PCBs with supercritical water hydrolysis [J].

Sako, T ;

Sugeta, T ;

Otake, K ;

Kamizawa, C ;

Okano, M ;

Negishi, A ;

Tsurumi, C .

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1999, 32 (06) :830-832

[9] Chemical decomposition of toxic organic chlorine compounds [J].

Taniguchi, S ;

Hosomi, M ;

Murakami, A ;

Iimura, S ;

Usukura, K ;

Ozawa, S .

CHEMOSPHERE, 1996, 32 (01) :199-202

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