Decomposition process for polychlorobiphenyl containing 1 to 5 chlorine by using basic molten salts as reaction field

Osamu Takeda, Takeshi Handa, Masayoshi Kimura, Yasufumi Yokka, Yuzuru Sato

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

A decomposition process for PCBs by using basic molten salts as a reaction field was investigated in order to establish a safe, simple and highly efficient decomposition process for polychlorobiphenyls (PCBs). PCB containing chlorine (e.g. 2, 2×, 4, 4×-tetrachlorobiphenyl) dissolved in n-nonane solution was supplied into basic molten salts (NaOH-Na2CO3 or KOH-K2CO3) maintained at 500-700°C together with the carrier gas (N2-21% O2) through an injection tube. The injected PCBs in a bubble are decomposed by the reaction with the molten salts and oxygen during rise in the molten salts. The decomposition efficiency of PCBs increased with increasing temperature and was achieved to be higher than 99.995% in a certain condition. From a series of systematic study, the effectiveness of the decomposition process for PCBs by using molten salts was demonstrated.

本文言語English
ホスト出版物のタイトルExtraction and Processing Division - EPD Congress 2008 - Held during TMS 2008 Annual Meeting and Exhibition
ページ503-508
ページ数6
出版ステータスPublished - 2008 10月 1
イベントExtraction and Processing Division - EPD Congress 2008 - Held during TMS 2008 Annual Meeting and Exhibition - New Orleans, LA, United States
継続期間: 2008 3月 92008 3月 13

出版物シリーズ

名前TMS Annual Meeting

Other

OtherExtraction and Processing Division - EPD Congress 2008 - Held during TMS 2008 Annual Meeting and Exhibition
国/地域United States
CityNew Orleans, LA
Period08/3/908/3/13

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金

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