01217nas a2200217   4500008004100000022001400041245013700055210006900192260006100261300001400322520034100336653002100677653003000698653003100728653002300759653002000782100002300802700001700825700002800842856012900870       2007                        eng d  a0930-757500aSynthesis and characterisation of polymer-anchored oxidovanadium(IV) complexes and their use for the oxidation of styrene and cumene0 aSynthesis and characterisation of polymeranchored oxidovanadiumI  a233 SPRING STREET, NEW YORK, NY 10013 USAbSPRINGERcJUN  a2303-23143 a<p>{The Schiff bases H(2)fsal-ea (I), H(2)fsal-pa (II) and H(2)fsal-amp (III), derived from 3-formylsalicylic acid and 2-aminoethanol, 3-aminopropanol and 2-amino-2-methylpropanol, respectively, have been connected, by means of covalent bonds, to chloromethylated polystyrene cross-linked with 5% divinylbenzene. On treatment with [</p>10adissolution rate10amass transfer coefficient10aparticle size distribution10apolydisperse solid10areactive liquid1 aMaurya, Mannar, R.1 aKumar, Umesh1 aManikandan, Palanichamy  uhttps://library.ncl.res.in/content/synthesis-and-characterisation-polymer-anchored-oxidovanadiumiv-complexes-and-their-use-002243nas a2200217   4500008004100000022001400041245010900055210006900164260006900233300001200302490000800314520138400322653001801706653003101724653003301755653002501788653002801813653003001841100002501871856012901896       2008                        eng d  a1385-894700aGeneral model for analyzing data on the rate of reactive dissolution of poly-disperse particulate solids0 aGeneral model for analyzing data on the rate of reactive dissolu  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcAPR  a347-3600 v1373 a<p>A model has been presented which successfully simulates the experimentally observed integral batch reactive dissolution rate data while accounting for the poly-dispersity of the solid particulate charge. This allowed avoiding arbitrary assumptions about the particulate inventory and size independence of the mass transfer coefficient. There is also no need for a priori identification of the controlling regime, which can change from kinetic to mass transfer during the process, apart from the possibility of the shift with the specified process and operating conditions. The model was applied with equal ease to a simple isothermal reaction, an exothermic reaction with runaway potential and to a phase-transfer catalysis reaction with a complex mechanism. The model was shown to predict the time required for a specified extent of conversion of the particulate reactant or the rate of consumption of a key liquid reactant under a variety of process and operating conditions, like temperature, liquid reactant and the catalyst concentration, particle size, poly-dispersity of the charge and agitation speed. Such information is useful in reactor design and scale-up. Where dissolution is accompanied with a runaway reaction, the model can predict quantities of interest in hazard assessment and should aid safe reactor design. (c) 2007 Elsevier B.V. All rights reserved.</p>10akinetic model10aparticle size distribution10apoly-disperse solid reactant10areactive dissolution10areactive thermal hazard10asolid-liquid PTC reaction1 aBhattacharya, Arijit  uhttps://library.ncl.res.in/content/general-model-analyzing-data-rate-reactive-dissolution-poly-disperse-particulate-solids-001546nas a2200217   4500008004100000022001400041245007500055210006900130260000800199300001200207490000700219520083300226653001301059653003101072653001801103653001901121653003501140100002701175700002301202856010301225       2018                        eng d  a0930-751600aReaction engineering for continuous production of silver nanoparticles0 aReaction engineering for continuous production of silver nanopar  cJAN  a157-1670 v413 a<p>A scalable process for the production of silver nanoparticles that allows for complete conversion of the limiting reactant is analyzed in detail. The kinetics of silver nanoparticle synthesis using citrate reduction are investigated and used for development of a reaction engineering model to facilitate the reactor design. The effect of temperature, pH, concentration and mixing (axial dispersion) on the rates of nucleation and growth are analyzed quantitatively. An approach that considers reaction kinetics coupled with quality of dispersion is developed for reactor design as well as selection of reactor configurations for the synthesis of specific particle sizes. The developed approach has been applied for continuous production of 10-L suspension silver nanoparticles with very narrow particle size distribution.</p>10akinetics10aparticle size distribution10arate constant10aReactor design10aSilver nanoparticle production1 aDeshpande, Javdeep, B.1 aKulkarni, Amol, A.  uhttps://library.ncl.res.in/content/reaction-engineering-continuous-production-silver-nanoparticles