Sorption purification of aqueous solutions to remove TBP using Stirosorb sorbent

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The sorption purification of aqueous solutions to remove TBP on the Stirosorb polymer sorbent in batch and column modes was studied. Sitorsorb polymer sorbent allows purification of aqueous media to remove TBP at a solution temperature not exceeding 70°C to an organic matter content of no more than 10–11 mg/dm3 at a load of ~0.9 g TBP/g sorbent. A solution containing U(VI) and Pu(IV) is purified to remove phosphorus-containing compounds on Stirosorb sorbent without solution depletion of U(VI) and Pu(IV).

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作者简介

V. Kulemin

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

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Email: kulem-ipc@yandex.ru
俄罗斯联邦, Leninskii pr. 31, korp. 4, Moscow, 119071

S. Kulyukhin

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: kulem-ipc@yandex.ru
俄罗斯联邦, Leninskii pr. 31, korp. 4, Moscow, 119071

参考

  1. Kulemin V.V., Kostikova G.V., Kulyukhin S.A. // Radiochemistry. 2024. Vol. 66. N 1. P. 50–57.
  2. Kulemin V.V., Kulyukhin S.A. // Radiochemistry. 2024. Vol. 66. N 1. P. 58–63.
  3. Паренаго О.О., Костенко М.О, Устинович К.Б., Хесина З.Б., Буряк А.К. // Сорбционные и хроматографические процессы. 2020. Т. 20. N 6. С. 658–673.
  4. Борисова Н.Н. Автореферат дис. …магистра. Усть-Каменогорск, Казахстан: Восточно-Казахстанский гос. технический ун-т им. Серикбаева, 2010. 20 с.
  5. Попов А.Ю., Блинникова З.К., Цюрупа М.П., Даванков В.А. // Сорбционные и хроматографические процессы. 2017. Т. 17. № 2. С. 183–190.
  6. Попов А.Ю. Дис. …к.х.н. М.: Ин-т элементоорганических соединений им. А.Н. Несмеянова РАН, 2021.

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2. Fig. 1. Kinetic dependences F = f(of TBP adsorption from an aqueous solution on the Styrosorb sorbent. [HNO3] = [U(VI)] = 0. Temperature t = 20°C. Initial concentration of TBP (C0), mg/dm3: 1 – 365, 2 – 170, 3 – 70. F = a/ap, where a is the specific adsorption at a certain point in time, ap is the equilibrium specific adsorption.

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3. Fig. 2. Kinetic dependences –lg(1 – F) = f( of TBP adsorption from an aqueous solution on the Styrosorb sorbent. [HNO3] = [U(VI)] = 0. Temperature t = 20°C. Initial concentration of TBP (C0), mg/dm3: 1 – 365, 2 – 170, 3 – 70

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