نتایج جستجو برای: zeolitic additives

تعداد نتایج: 17546  

A. Nemati Kharat, R. Zafari

Current article describes application of zeolites in fluid catalytic cracking (FCC). The use of several zeolitic additives for the production light olefins and reduction of pollutants is described. Application of zeolites as fluid catalytic cracking (FCC) catalysts and additives due to the presence of active acid sites in the zeolite framework  increase the formation of desired cracking product...

Journal: :journal of nanostructures 2013
a. nemati kharat r. zafari

current article describes application of zeolites in fluid catalytic cracking (fcc). the use of several zeolitic additives for the production light olefins and reduction of pollutants is described. application of zeolites as fluid catalytic cracking (fcc) catalysts and additives due to the presence of active acid sites in the zeolite framework  increase the formation of desired cracking product...

Journal: :Chemical communications 2014
Zhenyu Sun Xing Huang Fang Liu Xiaoning Yang Christoph Rösler Roland A Fischer Martin Muhler Wolfgang Schuhmann

Four organic amine-based solvents were discovered which enable direct exfoliation of graphite to produce high-quality and oxygen-free graphene nanosheets. These solvents outperform previously used solvents and additives such as N-methyl-pyrrolidone and surfactants in terms of their dispersing capacity. The resulting dispersions allow the facile fabrication of zeolitic imidazolate framework (ZIF...

Journal: :Journal of Sustainable Architecture and Civil Engineering 2014

Journal: :Journal of contaminant hydrology 2003
Hari S Viswanathan Bruce A Robinson Carl W Gable James W Carey

Retardation of certain radionuclides due to sorption to zeolitic minerals is considered one of the major barriers to contaminant transport in the unsaturated zone of Yucca Mountain. However, zeolitically altered areas are lower in permeability than unaltered regions, which raises the possibility that contaminants might bypass the sorptive zeolites. The relationship between hydrologic and chemic...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
nazila esmaeili hossein kazemian dariush bastani

this mini review article, intends to provide the essential information about microemulsion technique as a reliable approach toward the synthesis of zeolitic nano crystallites. the strategy discussed here provides a unique, effective, and potentially general methodology to the preparation of uniform and high purity nano crystallites of template-free zeolitic materials including lta, faujasite ty...

2011
Jarian Vernimmen Vera Meynen Pegie Cool

In the last decade, research concerning nanoporous siliceous materials has been focused on mesoporous materials with intrinsic zeolitic features. These materials are thought to be superior, because they are able to combine (i) the enhanced diffusion and accessibility for larger molecules and viscous fluids typical of mesoporous materials with (ii) the remarkable stability, catalytic activity an...

Journal: :Chemical communications 2012
Jing Shi Lifeng Chen Nan Ren Yahong Zhang Yi Tang

A zeolitic platinum-encapsulated microcapsule was successfully employed in the one-pot tandem synthesis of hydrazone directly from cyclohexanol with high conversion, selectivity and reusability due to the promising protection of the zeolitic shell around the catalyst.

2002
DUMITRU BULGARIU

The separation and concetration of minerals from zeolitic volcanic tuffs represent one of the problems for which the literature not offer, to much practically solutions. The experimental strategy used by as, for the separation minerals from zeolitic volcanic tuffs to comprise the following methods: heavy liquids separation; magnetic separation and electrophoresis separation. For zeolites, silic...

Journal: :Chemical communications 2013
Shunsuke Tanaka Koji Kida Takuya Nagaoka Takehiro Ota Yoshikazu Miyake

Mechanochemical dry conversion that only uses zinc oxide and an imidazole ligand proved to be effective and reliable for fabrication of a zeolitic imidazolate framework with a polycrystalline grain boundary and a core-shell structure. The zinc oxide crystals are converted into a zeolitic imidazolate framework to a depth of approx. 10 nm below the surface.

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