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Preparation of Mineral-Carbon Adsorbents from Flotation Tailings Using the Spherical Agglomeration Technique

Polowczyk I., Sadowski Z., Drąg E., Bastrzyk A.

Polish Journal of Chemistry

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2008

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Vol. 82, nr 1-2

149-158

EN

Flotation tailings, obtained from the copper recovery process, were converted into aggregates by means of the spherical oil agglomeration process, using sodium oleate or dodecylammonium hydrochloride as particles’ surface modifiers, and kerosene as bridging oil. The agglomeration process was characterized in respect to the surfactant nature, its concentration and amount of kerosene used. Resulting agglomerates were carbonized at 700°C in the Grey-King retort to give the mineral-carbon adsorbent. Subsequent alkaline work-up resulted in substantial increase of sorptive properties, as determined by the adsorption of water vapour, benzene and methanol and BET surface measurement. Simultaneously, removal of As3+ ions from aqueous solution has been examined. The results obtained in the present study clearly indicate possibility of making cheap and valuable composite sorbents from flotation tailings.

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Application of spherical agglomeration process in the formation of adsorbents from fly ash

Polowczyk I., Drąg E., Bastrzyk A., Sadowski Z.

Polish Journal of Chemical Technology

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2006

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Vol. 8, nr 4

95-99

EN

The main aim of this work was to prepare the mineral-carbon adsorbents from fly ash. The investigations of spherical oil agglomeration method have been conducted using fly ash from brown coal (lignite) burning ,,Elektrownia Turów" power-plant (Poland). The spherical oil agglomeration method was used in order to obtain the composite adsorbents. The main effort was devoted to the optimal conditions determination for the spherical agglomeration process. The proposed procedure gives a possibility for the preparation of low-costs and effective mineral-carbon adsorbents.

3

Properties and structure of zeolite-carbon adsorbents obtained from gas-coking coal and kaolin.

Drąg E., Bratek K., Bratek W.

Prace Naukowe Instytutu Chemii i Technologii Nafty i Węgla Politechniki Wrocławskiej. Konferencje

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1999

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Vol. 9, nr 56

351-356

EN

Zeolite-coal adsorbents were prepared from a mixture of gas-coking coal, type 34.2, from the 'Anna' mine and 'Maria' kaolin, from the Nowogrodziec mine in a mass ratio 1:1 during carbonisation, activation and base treatment processes. Behaviour of raw materials, i.e. coal and kaolin, was studied in analogous conditions, in order to explain processes taking place during co-carbonization, co-activation and co-crystallization. Properties and structure of coal chars, activation products and adsorbents, as well as, their usefulness for wastes treatment were onvestigated. The kaolin-coal mixture can be used for production of highly active zeolite-coal adsorbents useful for wastes treatment and air detoxification.

PL

Badano adsorbenty zeolitowo-węglowe z mieszaniny (1:1) z węgla gazowo-koksowego typ 34.2 z kopalni 'Anna' i kaolinu z kopalni 'Maria' w Nowogrodźcu. Mieszaninę oraz surowce poddawano procesom karbonizacji, aktywacji i obróbce alkaliami. Badano właściwości i strukturę porowatą adsorbentów. Wykazano ich przydatność w procesach oczyszczania ścieków i detoksykacji powietrza.

4

Aapplication of adsorbents made from sludge to wastes treatment.

Drąg E.

Prace Naukowe Instytutu Chemii i Technologii Nafty i Węgla Politechniki Wrocławskiej. Konferencje

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1999

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Vol. 9, nr 56

291-295

EN

The study concentrated on usefulness of waste materials from Petrochemia Płock wastes treatment plant. Waste materials used in invetigations included sludge and ashes formed after burning of sludge in fluidised-bed furnaces. These materials were used for production of adsorbents. The adsorbent's quality was tested in adsorption and adsorption-coagulation processes of treatment of wastes from CPN and model sewage.

PL

Badano przydatność materiałów odpadowych z oczyszczalni ścieków w Petrochemii Płock tj. osadów ściekowych i popiołów z ich spalania w piecach fluidalnych jako surowców do otrzymywania adsorbentów. Jakość ich oceniano w procesach adsorpcyjnych i adsorpcyjno-koagilacyjnych oczyszczania ścieków z CPN-u i ścieków modelowych.