Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 4

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  bentonite
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Production of suspension fertilizers as a potential way of managing industrial waste

100%
Mikła D., Hoffmann K., Hoffmann J.
|
EN
Research on the possibilities of utilizing several waste substances for the production of suspension fertilizers has been carried out. The substances were: sludge from the ALWERNIA S.A. Chemical Plant - a potential source of phosphorous (~20% by wt. P2O5) and waste sludge from the production of magnesium sulphates and nitrates in the Złotniki S.A. Chemical Plant - a substance aiding the stability of suspension and magnesite (a source of magnesium). The possibility of chemical activation of clayey minerals through ion exchange was investigated. Na2CO3 was used for this purpose. Fertilizer samples PK and NPK were found to be highly stable (syneresis < 25%). The NPK +3% MgO sample was found to have particularly good properties. The activation of the clayey materials by Na2CO3 resulted in an increase in the stability coefficient in the case of bentonite SN and clay TIK by 0.88964 and 0.516304, respectively.
2
Content available remote

Oxidation of Cyclohexene with H₂O₂ Catalyzed by Vanadium Based Polyoxometalates Doped Modified Clays as Green Catalysts

88%
Boudjema S., Rabah H., Choukchou-Braham A.
Acta Physica Polonica A
|
2017
|
vol. 132
|
issue 3
469-472
EN
The catalytic performance of supported heteropolyacids in various liquid-solid and gas-solid heterogeneous reactions may be affected by the choice of support and/or the method of heteropolyacid deposition. Vanadium substituted polyphosphomolybdate with the Keggin structure H₄[PVMo₁₁O₄₀]· 13H₂O (PVMo) was dispersed throughout acid activated bentonite (clay from Hammam Boughrara, Maghnia, Algeria). A series of catalysts were prepared via modified impregnation. Modified preparation method employed ultrasonication as a means of the dispersion homogenization, followed by freeze-drying. The catalysts were characterized by the Brunauer-Emmett-Teller, the Fourier transform infrared, and ³¹P solid-state magic angle spinning-NMR spectroscopy. The catalytic performance of PVMo/Hmont was evaluated in the oxidation of cyclohexene. Intact Keggin anions were preserved on Hmont after deposition aided by ultrasonication. The obtained results showed that a better catalytic activity can be obtained with PVMo/bentonite (98% of conversion and 89% of cyclohexene oxide), by drop addition of H₂O₂, for 3 h.
3
Publication available in full text mode
Content available

Effect of Processing Conditions on Selected Properties of Polyamide 6 Composites Filled by Modified Bentonite

75%
Gnatowski A., Gołębski R., Stachowiak K., Gnatowski A., Gołębski R., Stachowiak K.
Archives of Metallurgy and Materials
|
2021
|
vol. 66
|
issue 2
4
Publication available in full text mode
Content available

Adsorption method of purification of stocks from chromium(III) ions by bentonite clays

75%
Soloviy C., Malovanyy M., Palamarchuk O., Trach I., Petruk H., Sakalova H., Vasylinych T., Vronska N., Soloviy C., Malovanyy M., Palamarchuk O., Trach I., Petruk H., Sakalova H., Vasylinych T., Vronska N.
Journal of Water and Land Development
|
2021
|
issue 48
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.