نتایج جستجو برای: zirconium dodecylphosphonate
تعداد نتایج: 6738 فیلتر نتایج به سال:
An azobenzene-containing zirconium metal-organic framework was demonstrated to be an effective heterogeneous catalyst for the direct amidation of benzoic acids in tetrahydrofuran at 70 °C. This finding was applied to the synthesis of several important, representative bioactive compounds.
Reaction of a zirconium imido and a hydrazinediido complex with bis(trimethylsilyl)sulfur diimide yielded the corresponding formal [2+2] cycloaddition products, the trisimidosulfito complex and the hydrazidobis(imido)sulfito complex containing an unprecedented SN(2)(N-N) unit.
The Kalibbar Nephelincyanite comes from a region in East Azerbaijan. Its mineral and chemical composition is nearly similar to an Indian feldspar which is used in some of Iranian tile and ceramic industries. The procreation and behavior parameters of Kalibbar Nephlincyanite with the Indian feldspar in production of Monokotorata tile engob, has been studied comparatively. Nephelincyanite has sho...
Vanadium oxide nanotubes belong to inorganic nanotubes. One inorganic nanotubes (WS2) synthesized in 1992.Vanadium oxide nanotubes discovared by spahr in 1998.Vanadium oxide nanotubes are used in chemical, bio, electronics and catalysts industry. Many applications of these nanotubes have not yet been discovered. Especially when these nanotubes are doped with different elements. The structure of...
In this study, zirconium carbide nanoparticles were synthesized by the sol-gel method in the alcoholic system. The sol was prepared in a three-component alkoxide-water-alcohol system based on the chemical sol-gel process under acidic conditions and at pH = 5. Zirconium n-propoxide, furfuryl alcohol were used as raw materials. After the hydrolysis process and formation of the gel, the initial po...
This study aimed to compare the phase changes and morphology of yttria-stabilized zirconium oxide powders (YSZ) synthesized by co-precipitation and molten salt methods. Ammonia precipitating agent was used for the synthesis of YSZ powder by co-precipitation method and a mixture of sodium carbonate and potassium carbonate salts was used as a molten salt in the molten salt method. Samples were ch...
Use of sodium polystyrene sulfonate (SPS) dominates the long-term treatment of hyperkalemia, but two new agents, sodium zirconium cyclosilicate and the recently FDA-approved patiromer, may offer potential advantages compared with SPS.
Awakening a dormant catalyst: salicylaldimine systems for ethene/tert-butylstyrene copolymerization.
A group of readily available zirconium catalysts incapable of ethene-co-styrene polymerization are remarkably active and selective for the production of the new polymer ethene-co-tert-butylstyrene via a single site mechanism.
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