2006年10月
Treatment of hydrochloric acid with magnesium-aluminum oxide at ambient temperatures
SEPARATION AND PURIFICATION TECHNOLOGY
- ,
- ,
- ,
- ,
- 巻
- 51
- 号
- 3
- 開始ページ
- 272
- 終了ページ
- 276
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.seppur.2006.02.008
- 出版者・発行元
- ELSEVIER SCIENCE BV
Our results demonstrate that magnesium-aluminum oxide (Mg-Al oxide) can be advantageous in treating hydrochloric acid waste at temperatures between 10 and 30 degrees C, by acting as both a neutralizer and fixative for Cl-. The Mg-Al oxide was prepared by the thermal decomposition of a hydrotalcite-like compound. The extent of Cl- removal by Mg-Al oxide increased with increases of temperature, oxide quantity and Mg/Al molar ratio. The initial pH had little effect on Cl- removal; the pH increased rapidly from the start of the reaction and attained a nearly constant value. The reaction involved in Cl- removal from HCl by Mg-Al oxide proceeded under surface chemical reaction control, with apparent activation energy of 65.6 kJ mol(-1). (c) 2006 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.seppur.2006.02.008
- ISSN : 1383-5866
- CiNii Articles ID : 80018805236
- Web of Science ID : WOS:000241652500006