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Characterization of Al-Zr, Al-Hf and Al-Ce-pillared vermiculites by X-ray photoelectron spectroscopy
X-ray photoelectron spectroscopy was used to establish the relative concentration and the chemical environment of modifying species in a series of vermiculites pillared with mixed precursors of Al-Zr, Al-Hf and Al-Ce. The ...
Decane hydroconversion with Al–Zr, Al–Hf, Al–Ce-pillared vermiculites
A series of vermiculites pillared with mixed precursors of Al–Zr, Al–Hf and Al–Ce were obtained from natural vermiculite subjected to a process of negative charge reduction through hydrothermal treatment. The catalytic ...
Vermiculite ore classification by texture analysis
(Universidade Federal Fluminense (UFF)Rio de Janeiro, 2013)
In this paper, two micro-patterns descriptors are evaluated in the vermiculite ore classification: the Local Binary Pattern (LBP) and the Local Fuzzy Pattern (LFP). A micro-pattern is the gray-level pixels’ structure in ...
Adsorption of crude oil on anhydrous and hydrophobized vermiculite
(Elsevier, 2003-04-15)
Adsorption of crude oil on anhydrous and hydrophobized vermiculite
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2003)
Substrate mixing formulations for Citrus nursery management
(Univ Federal Mato Grosso, 2021-09-01)
The citrus seedling development is determined by several factors, including the physical and chemical qualities of the substrate, which affect the quality of field seedlings. The purpose of this study was to evaluate how ...