Adsorption of 2-Butyl-2-ethyl-1,3-propanediol from Aqueous Solutions on Activated Carbon: Salt-Out Effect on Equilibrium, Kinetics, and Dynamics was written by Chang, Ganggang;Bao, Zongbi;Zhang, Zhiguo;Xing, Huabin;Su, Baogen;Yang, Yiwen;Ren, Qilong. And the article was included in Industrial & Engineering Chemistry Research in 2014.Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:
In recent decades, 2-butyl-2-ethyl-1,3-propanediol (BEPD) was extensively evaluated as an efficient extractant for the recovery of B from brine solutions commonly present in Mg chloride. The BEPD leaked into the raffinate must be recovered to make the process of solvent extraction cost-efficient. The present study examined the feasibility of a commercialized coal-based activated C to recover BEPD from brine solutions The salt-out effect on adsorption isotherms and kinetics of BEPD from brine solutions with salt concentrations up to 100 g/L were reported at different temperatures (20°, 30°, 40°, and 50°). The saturated adsorption capacities were significantly enhanced from 192 mg/g in the deionized H2O to 238 mg/g in the brine solution with an MgCl2 concentration of 100 g/L at 30°. Kinetic anal. indicated that the adsorption kinetics of BEPD followed the pseudo-second-order equation, and the pseudo-second rate constant (k2) affected by the varied salt concentrations complied with the following order: MgCl2 (100 g/L) > MgCl2 (25 g/L) ≈ CaCl2 (20 g/L) > deionized H2O. Also, the benefit from the salt-out effect was also verified by the extended dynamic breakthrough volume as well as the amount adsorbed. The dynamic adsorption capacity was much higher in a saline H2O, i.e., 235 vs. 191 mg/g in the deionized H2O. The Thomas model was further applied to predict the exptl. breakthrough data, and the obtained model parameters could be useful for future process design. The activated C has the potential for practical adsorption applications for BEPD recovery from aqueous solutions This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol).
2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol
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