发明名称 A PROCESS FOR REDUCING CHLORONITROBENZENE CATALYZED BY PLATINUM-NANOPARTICLES STABILIZED ON MODIFIED MONTMORILLONITE CLAY
摘要 Pto-nanoparticles of in the size range 0 - 10 nm were prepared in-situ by impregnation of H2PtCl6.6H2O into the nanopores of modified montmorillonite followed by reduction with different reducing agents like ethylene glycol, sodium citrate, hydrogen, hydrazine and sodium borohydrate. The montmorillonite was modified by activation with mineral acids under controlled condition for generating desired nanopores. XRD pattern of Pto-nanoparticles revealed the formation of face centered cubic (fcc) lattice. These supported Pto-nanoparticles show efficient catalytic activity for the selective reduction of chloronitrobenzenes. As a typical example, at a H2 pressure of 10 bars, temperature 45 °C for a period of 15 min, the Pto-nanoparticles (prepared by reduction with hydrazine) exhibit conversion of o-chloronitrobenzene upto 100 % and selectivity > 99 % to o-chloroanilines with very negligible amount of C-Cl bond cleavage.
申请公布号 WO2015011716(A1) 申请公布日期 2015.01.29
申请号 WO2013IN00698 申请日期 2013.11.18
申请人 COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH 发明人 DUTTA, DIPAK, KUMAR;DUTTA, DIPANKA
分类号 C07C209/36;B01J23/42;C07C211/52 主分类号 C07C209/36
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