British and foreign arms & armour by C.H. Ashdown

By C.H. Ashdown

Оружейная история Британии и других стран. Книга проиллюстрирована 450 гравюрами и forty two тоновыми иллюстрациями. Охватывает период с древнейших времен до 17 века

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British and foreign arms & armour

Оружейная история Британии и других стран. Книга проиллюстрирована 450 гравюрами и forty two тоновыми иллюстрациями. Охватывает период с древнейших времен до 17 века

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While, the Freundlich equation is employed to described heterogenous systems and reversible adsorption and is not restricted to the formation of monolayer. 20 308K 313K 318K 323K C/Q 15 10 5 200 300 400 C(mg/L) 500 600 Figure 5. The Langmuir isotherms of LSC-600 for Ga(III). 5 lnC Figure 6. The Freundlich isotherms of LSC-600 for Ga(III). The parameters for the two isotherms models obtained from Figs. 5 and 6 were summarized. 9544, which implied that both Langmuir and Freundlich models could be used to describe the adsorption isotherms of Ga(III) on LSC-600 at the temperature range of 308-323 K.

However, the co-extraction of vanadium and the degradation of resins are the major issues. Further investigations related to fundamental theory are needed. This paper reports the study of the adsorption properties of a strongly basic resin having a combination of one =NOH group and another active group -NH 2 for Ga(III) extraction. The influence of operational conditions such as contact time, initial Ga(III) concentration and temperature on Ga(III) adsorption were extensively investigated. The results revealed that the resin has high adsorption capacity and Ga(III) selectivity.

The influence of operational conditions such as contact time, initial Ga(III) concentration and temperature on Ga(III) adsorption were extensively investigated. The results revealed that the resin has high adsorption capacity and Ga(III) selectivity. The optimal adsorption condition was obtained at temperatures of 40-50°C and contact time of 40-60 min. The Ga(III) adsorption data on the resin fit well with the pseudo second-order kinetics. 75kJ/mol. Langmuir and Freundlich models were used to describe Ga(III) adsorption isotherms on the resin.

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