Treatment of hydrochloric acid using Mg-Al layered double hydroxide intercalated with carbonate

Tomohito Kameda; Masahito Tochinai; Toshiaki Yoshioka

Journal of Industrial and Engineering Chemistry, Vol.39, 21-26, July, 2016

DOI10.1016/j.jiec.2016.04.018 Export Citation

Treatment of hydrochloric acid using Mg-Al layered double hydroxide intercalated with carbonate

Tomohito Kameda^†, Masahito Tochinai, and Toshiaki Yoshioka

Graduate School of Environmental Studies, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan

E-mail:

Mg-Al layered double hydroxide intercalated with CO3 2- (CO3·Mg-Al LDH) was found to take up only low amounts of Cl- during the treatment of hydrochloric acid. Low pH promotes the removal of Cl-. HCl is considered to react with CO3 2- in the interlayers of Mg-Al LDH as a result of which Cl- is probably intercalated in the interlayers. High pH of the Mg-Al LDH suspension leads to a lower extent of reaction between HCl and Mg-Al LDH, owing to the neutralization of the acid. We can state that the adsorption of Cl- on Mg-Al LDH is best described by the Dubinin.Radushkevich adsorption isotherm. The maximum adsorption amounts were calculated to be 1.4 and 0.6 mmol/g for CO3·Mg-Al LDH with Mg/Al molar ratios of 2 and 4, respectively, whereas the adsorption energies were calculated to be 82 and 124 kJ/mol, respectively. In summary, the removal of Cl- is caused by both the reaction between hydrochloric acid and CO3 2- in the interlayers of Mg.Al LDH as well as anion exchange between the HCO3- produced and a different Cl- ion in hydrochloric acid. This explains why the adsorption is best expressed by the D-R adsorption isotherm, which assumes a heterogeneous surface and non-constant adsorption potential.

Keywords:Layered double hydroxide;Hydrochloric acid;Treatment;Adsorption isotherm

[References]

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Kameda T, Yabuuchi F, Yoshioka T, Uchida M, Okuwaki A, Water Res., 37, 1545 (2003)
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Kameda T, Uchiyama N, Park KS, Grause G, Yoshioka T, Chemosphere, 73, 844 (2008)
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Kameda T, Uchiyama N, Yoshioka T, Desalination, 280(1-3), 424 (2011)
Kameda T, Uchiyama N, Yoshioka T, Chemosphere, 81, 658 (2010)
Maekawa H, Takagishi Y, Doi Y, Osumi K, Otomune T, Yakuzaigaku, 31, 266 (1971)
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[1] Cavani F, Trifiro F, Vaccari A, Catal. Today, 11, 173 (1991)

[2] Ingram L, Taylor HFW, Mineral. Mag., 36, 465 (1967)

[3] Allmann R, Acta Crystallogr. Sect. B-Struct. Sci., 24, 972 (1968)

[4] Mills SJ, Christy AG, Genin JMR, Kameda T, Colombo F, Mineral. Mag., 76, 1289 (2012)

[5] Yan D, Zhao Y, Wei M, Liang R, Lu J, Evans DG, Duan X, RSC Adv., 3, 4303 (2013)

[6] Liang R, Tian R, Liu Z, Yan D, Wei M, Chem. - Asian J., 9, 1161 (2014)

[7] Gao R, Zhao M, Guan Y, Fang X, Li X, Yan D, J. Mater. Chem. C, 2, 9579 (2014)

[8] Zhao YB, Lin HY, Chen MX, Yan DP, Ind. Eng. Chem. Res., 53(8), 3140 (2014)

[9] Wang G, Xu S, Xia C, Yan D, Lin Y, Wei M, RSC Adv., 5, 23708 (2015)

[10] Lafi R, Charradi K, Djebbi MA, Amara ABH, Hafiane A, Adv. Powder Technol., 27(1), 232 (2016)

[11] Koilraj P, Sasaki K, J. Environ. Chem. Eng., 4, 984 (2016)

[12] Kameda T, Miyano Y, Yoshioka T, Uchida M, Okuwaki A, Chem. Lett., 29(10), 1136 (2000)

[13] Kameda T, Yoshioka T, Uchida M, Miyano Y, Okuwaki A, Bull. Chem. Soc. Jpn., 75, 595 (2002)

[14] Kameda T, Yabuuchi F, Yoshioka T, Uchida M, Okuwaki A, Water Res., 37, 1545 (2003)

[15] Kameda T, Yoshioka T, Hoshi T, Uchida M, Okuwaki A, Sep. Purif. Technol., 51(3), 272 (2006)

[16] Kameda T, Uchiyama N, Park KS, Grause G, Yoshioka T, Chemosphere, 73, 844 (2008)

[17] Kameda T, Uchiyama N, Yoshioka T, Chemosphere, 82, 587 (2011)

[18] Kameda T, Uchiyama N, Yoshioka T, Desalination, 280(1-3), 424 (2011)

[19] Kameda T, Uchiyama N, Yoshioka T, Chemosphere, 81, 658 (2010)

[20] Maekawa H, Takagishi Y, Doi Y, Osumi K, Otomune T, Yakuzaigaku, 31, 266 (1971)

[21] Maekawa H, Takagishi Y, Doi Y, Yamamoto M, Yakuzaigaku, 31, 273 (1971)

[22] Takagishi Y, Do Yi,Iwamoto K, Maekawa H, Yakuzaigaku, 38, 157 (1978)

[23] Takagishi Y, Iwamoto K, Maekawa H, Yakuzaigaku, 38, 166 (1978)

[24] Iyi N, Matsumoto T, Kaneko Y, Kitamura K, Chem. Mater., 16, 2926 (2004)

[25] Oubagaranadin JUK, Sathyamurthy N, Murthy ZVP, J. Hazard. Mater., 142(1-2), 165 (2007)

[26] Ozcan A, Ozcan AS, Tunali S, Akar T, Kiran I, J. Hazard. Mater., 124(1-3), 200 (2005)