Dehydrochlorination and recovery of hydrochloric acid by thermal treatment of a chloride ion-intercalated hydrotalcite-like compound

Tomohito Kameda, Toshiaki Yoshioka, Kouji Watanabe, Miho Uchida, Akitsugu Okuwaki

研究成果: Article

15 引用 (Scopus)

抜粋

We examined the dehydrochlorination of a chloride ion-intercalated hydrotalcite-like compound (Cl--HT) on thermal treatment under water vapor, and the subsequent recovery of hydrochloric acid. The degree of dehydrochlorination increased with increasing temperature, partial pressure of water vapor, and time, whereas the hydrochloric acid concentration decreased with increasing partial pressure of water vapor and time. Greater than 90% dehydrochlorination and greater than 20 wt.% recovery of hydrochloric acid could be obtained by thermal treatment of Cl--HT in the conditions as follows; temperature: 550 °C, time: 0.5 h, water vapor: 7%.

元の言語English
ページ(範囲)215-219
ページ数5
ジャーナルApplied Clay Science
37
発行部数1-2
DOI
出版物ステータスPublished - 2007 6

ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology

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