Results 351 to 360 of about 2,241,134 (405)
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Journal of Cleaner Production, 2018
Utilization of heterogeneous catalyst in the biodiesel production process can minimize the cost of separation process and subsequently reduce the biodiesel price.
M. Putra +4 more
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Utilization of heterogeneous catalyst in the biodiesel production process can minimize the cost of separation process and subsequently reduce the biodiesel price.
M. Putra +4 more
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Heterogeneous Catalysts for Toluene Oxidation
Chemistry – An Asian JournalAbstractThe selective activation of C(sp3)‐H bonds in toluene to produce high value‐added oxygenated chemicals represents a pivotal challenge and opportunity for both fundamental researches and industrial applications. Since the C(sp3)‐H bonds are both thermodynamically robust and kinetically inert, conventional catalytic techniques for the activation ...
Zhen Su +4 more
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Heterogenization of homogeneous catalysts
Journal of Molecular Catalysis, 1986The surface reactions which take place when TiCl4 is reacted with -AlEtCl or -AlEt2 on a silica surface have been studied by EPR and chemical analysis. These systems have been compared to the reverse reactions, when -TiCl3 anchored to the silica surface is reacted with Et2AlCl or Et3Al.
Ivar M. Dahl +2 more
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HETEROGENIZED HOMOGENEOUS CATALYSTS*
Annals of the New York Academy of Sciences, 1983Revue des complexes metal transition-coordinat phosphine a ammonium quaternaire.
Richard T. Smith +3 more
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Heterogeneous Metallocene Catalysts
1995Copolymerizations of olefins were carried out with the SiO2-, AI2O3- and MgCl2-supported Et[IndH4]2ZrCl2 catalysts combined with AIR3 as cocatalyst and the results were compared with those obtained previously in the presence of homogeneous Et[IndH4]2ZrCl2-MAO catalyst.
Kazuo Soga +3 more
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Heterogeneous Catalyst Preparation
2004In this chapter, the different preparation processes for the synthesis of heterogeneous catalysis are described, including co-precipitation, sol-gel technique and hydrothermal method. The extension to the different steps of industrial scale preparation is also considered.
Graham J. Hutchings, Jacques C. Védrine
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ACS Sustainable Chemistry and Engineering, 2018
To reduce the ever-growing greenhouse gas CO2, CO2 utilization is considered with much more promise as it could convert CO2 into value-added industrial products and achieve carbon cyclic utilization.
Dingxuan Ma +3 more
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To reduce the ever-growing greenhouse gas CO2, CO2 utilization is considered with much more promise as it could convert CO2 into value-added industrial products and achieve carbon cyclic utilization.
Dingxuan Ma +3 more
semanticscholar +1 more source
Heterogenization of Metallocene Catalysts for Alkene Polymerization
Angewandte Chemie International Edition, 1999Beyond mere convenience: In large-scale industrial processes for alkene polymerization the essentially homogeneous metallocene/activator catalyst systems are heterogenized (example shown) to improve polymer properties. New mesoporous and organic catalyst supports and their application in this field of catalysis are described.
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1997
Abstract of GB 2309655 (A) Heterogeneous catalysts comprising one or more metal compounds selected from the group consisting of tin, molybdenum, tungsten, zirconium and selenium compounds deposited on the surface of a silicalite are provided. Preferably Sn(IV) and/or Mo(VI) are employed. The catalysts are prepared by reacting a metal halide compound in
Dakka, J. (author) +2 more
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Abstract of GB 2309655 (A) Heterogeneous catalysts comprising one or more metal compounds selected from the group consisting of tin, molybdenum, tungsten, zirconium and selenium compounds deposited on the surface of a silicalite are provided. Preferably Sn(IV) and/or Mo(VI) are employed. The catalysts are prepared by reacting a metal halide compound in
Dakka, J. (author) +2 more
openaire +1 more source