Ashok Shyamkuwar

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B. Tech., M. Chem. Engg.

 

Education Details
Course	Institute/University	Year of Passing
B. Tech. Chemical Engineering	Dr. C. V. Raman Institute of Technology, Nagpur, Maharashtra.	2005
M. Chem. Engineering	University Institute of Chemical Technology, UICT, Mumbai	2008

Abstract of Masters Thesis:

ADVANCED DRYING SYSTEMS FOR SPECIALTY CHEMICALS

Fine chemicals are pure, single substances that are produced by chemical reactions which are bought and sold on the basis of their chemical identity. The combination of fine chemicals and performance chemicals make up the group called specialty chemicals. Absorbable gelatin foam (commonly known as SurgifoamTM or GelfoamTM), universally used for arresting a bleeding from a lesion on parenchymal organs such as liver, kidney, lungs etc; was synthesized and dried in a freeze dryer (FD) and heat pump dryer (HPD). It is used in the form of dry, sterile, storage stable flexible patch of a biodegradable matrix of absorbable gelatin foam.

The present work deals with the production and drying of absorbable gelatin foam. Foam was prepared using continuous static mixer, the wet foam produced from static mixer was analyzed for drainage, stability, density, viscosity, and foamability using different concentrations of sodium lauryl sulphate (SLS) as foaming agent. This wet foam was then dried in freeze dryer (FD) and heat pump dryer (HPD), dried foam was analyzed for its flexibility using Universal Testing Machine (UTM), water holding capacity, bulk density, softness and pore structure (SEM analysis) and thermal stability using differential scanning calorimetry (D.S.C). Freeze dried foam was found to be superior as compared to the heat pump dried foam. Heat pump dryer requires less time to dry the foam as compared to freeze dryer due to higher diffusion rate as obtained using Fick's second law.