Structure and morphological properties of clinoptilolite modified by manganese dioxide

The kinetic parameters of the smoke gases purification process from carbon monoxide on a zeolite-based manganese oxide catalyst

“…Metal oxides can be used both in pure form in the form of a powder [12,13], and deposited on a granular mineral carrier, for example, zeolite. It is this approach that is used in [14,15]. In addition to noble metals, in the series of transition metal oxides, cobalt [16] and manganese [17,18] oxides exhibit high catalytic activity in CO oxidation.…”

Development of a Catalyst for Flue Gas Purification from Carbon Monoxide of Multi-Chamber Furnaces for Baking Electrode Blanks

“…In clinoptilolite, the Si/Al ratio should be 4.5-5.5 [Malovanyy et al, 2010;Grechanovskaya, 2010]. The use of these natural materials to solve the environmental problems is topical, given the interest of world science in the adsorption properties of clinoptilolites from Sokyrnytsia deposit and the possibility of their practical application on an industrial scale [Korablev et al, 2017].…”

“…The application of zeolites in catalysis has been known for a long time due to the good combination of structural adsorption and physicochemical properties of the combination with metal oxides, which are freely incorporated into the pores of zeolites [Inglezakis et al, 2012]. Zeolite-clinoptilolite, modified by transition metal oxides, in particular MnO 2 , is of considerable interest in the sorption-catalytic processes in aqueous solutions [Korablev et al, 2017;Tarasevich et al, 2012]. In addition, the papers [Panov et al, 2019;Choi et al, 2016] showed the possibility of using MnO 2 as a catalyst for the CO oxidation.…”

“…Regarding the use of natural zeolites of the Sokyrnytsia deposit of Ukraine for the oxidation of carbon monoxide, it was proposed to use an expensive Pd-Cu catalyst settled on acid-thermally modified clinoptilolite of the Sokyrnytsia deposit [Rakitskaya et al, 2011]. Other works focus on the modification of the clinoptilolite of the Sokyrnytsia deposit with manganese oxide (IV) by fixing a divalent manganese ion in the clinoptilolite matrix and its subsequent oxidation by permanganate ion [Korablev et al, 2017].…”

Kinetics of the process of oxidation of carbon monoxide on a zeolite-based manganese oxide catalyst

“…Оксиди металів можуть бути застосовані як в чистому вигляді у формі порошку [9,10], так і нанесені на гранульований мінеральний носій, наприклад, цеоліт. Саме такий підхід використаний в роботі [11,12]. Крім благородних металів, високу каталітичну активність в процесах окислення СО проявляють нікель, кобальт і залізо [13].…”