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SUPERCRITICAL FLUID


Posted by: seminar surveyer
Created at: Wednesday 22nd of December 2010 01:03:02 AM
Last Edited Or Replied at :Wednesday 04th of May 2011 07:18:50 PM
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Soluble material dissolve into the Supercritical Fluid.
The extracted component then separated by changing pressure & temperature.
Finally the SCF recompressed & recycled.


APPLICATIONS ------EXTRACTION
Advantages:
It is relatively rapid for low viscosity & high diffusivity of SCF
Easily recoverable.
Non-toxic solvents leave no harmful residue.
High boiling components are extracted at relatively low temp.
Uses:
IT is largely used in Food & Flavouring industry.
This method is used for Decaffenication of tea & coffee.
Extraction of essential oils, aroma materials from spices et..................[:=> Show Contents <=:]



thesis topics for control and instrumentation


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Created at: Monday 29th of October 2012 09:20:45 AM
Last Edited Or Replied at :Tuesday 30th of October 2012 05:27:05 AM
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Goodafternoon.I am Reginald by name and doing by master program in Control Engineering.Pls i am in need of a project topic in instrumentation and control engineering..................[:=> Show Contents <=:]



nanoparticle synthesis methods ppt


Posted by:
Created at: Monday 29th of October 2012 09:09:21 AM
Last Edited Or Replied at :Monday 29th of October 2012 09:09:21 AM
nanoparticle synthesis methods , nanoparticle synthesis methods ppt, ppt nanoparticle synthesis , nanoparticles preparation methods ppt, nanoparticles synthesis ppt , nanoparticle synthesis ppt, nano particle synthesis ppt , ppt for preparation method of nanoparticles, synthesis of nanoparticles ppt , ppt for nanoparticle synthesis, nanopartcle synthesis ppt , preparation of nanoparticles ppt, nanoparticles preparation ppt , synthesis nanoparticles ppt, nano synthesis ppt , ppt for preparation of nanoparticles, ppt nanoparticles , methods of nanoparticles synthesis in ppt, nanoparticles synthesis techniques ppt , synthesis method of nanoparticles ppt, nanoparticles ppt ,
i actua..................[:=> Show Contents <=:]



biological synthesis of copper nanoparticles using plant extract


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Created at: Wednesday 03rd of October 2012 06:29:57 AM
Last Edited Or Replied at :Friday 26th of July 2013 08:16:09 AM
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biological synthesis of plant bas..................[:=> Show Contents <=:]



PRODUCTION OF BIOGENIC SILVER NANOPARTICLES USING BOSWELLIA OVALIFOLIOLATA STEM


Posted by: seminar class
Created at: Friday 06th of May 2011 11:11:32 PM
Last Edited Or Replied at :Friday 06th of May 2011 11:11:32 PM
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d outcome of this work will be the development of value-added products from Boswellia ovalifoliolata for biomedical and nanotechnology based industries.
(Received April 11, 2010; accepted May 5, 2010)
Keywords: Silver, Biogenic, Nanoparticles, UV-VIS, SEM
1. Introduction
Nanoparticles, generally considered as particles with a size of up to 100 nm, exhibit completely new or improved properties as compared to the larger particles of the bulk material that they are composed of based on specific characteristics such as size, distribution, and morphology . Nanoparticles of noble metal..................[:=> Show Contents <=:]



Super critical Fluids and its Applications


Posted by: seminar class
Created at: Tuesday 19th of April 2011 12:16:12 AM
Last Edited Or Replied at :Tuesday 19th of April 2011 12:16:12 AM
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g disperse (non-ionic) dyes, is a special case of this.
Biodiesel production
• Conversion of vegetable oil to biodiesel is via a transesterification reaction, where the triglyceride is converted to the methyl ester plus glycerol. This is usually done using methanol and caustic or acid catalysts, but can be achieved using supercritical methanol without a catalyst.
• This has the advantage of allowing a greater range and water content of feedstocks (in particular, used cooking oil), the product does not need to be washed to remove catalyst, and is easier to design as a continuous..................[:=> Show Contents <=:]



Nano-Particulate Technology Synthesis


Posted by: seminar class
Created at: Friday 04th of March 2011 12:49:58 AM
Last Edited Or Replied at :Friday 04th of March 2011 12:49:58 AM
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rform a specific task
Involves use of surface-active agents
e.g., CdS 50 nm particles by mixing two solutions containing inverted micelles of sodium bis(2-ethyl hexyl) sulfosuccinate in heptane
e.g., antiferromagnetic nanoparticles of Fe2O3 by decomposition of Fe(CO)5 in a mixture of decaline and oleyl sarcosine
Coordinating ligands used to produce nanoclusters
Surfactants play a major role
Vapor-Phase Synthesis
Vapor phase mixture rendered thermodynamically unstable relative to formation of desired solid material
“supersaturated vapor”
“chemical supersaturation”
particles nu..................[:=> Show Contents <=:]



SUPERCRITICAL FLUID


Posted by: seminar surveyer
Created at: Wednesday 22nd of December 2010 01:03:02 AM
Last Edited Or Replied at :Wednesday 04th of May 2011 07:18:50 PM
latest supercritical fluid extraction project report, supercritical fluid extraction ppt , supercritical fluids ppt, supercritical fluids ppt chemical engineering , supercritical water for nanoparticle synthesis ppt, supercritical fluid ppt , supercritical fluid extraction nanoparticle synthesis, definition of supercritical fluid , supercritical fluid extraction in food ppt, super critical fluid ppt , tea aroma and supercritical fluid extraction, natural occurence supercritical fluids , supercritical fluids electricity production, super critical fluids , seminar topic on supercritical fluids, seminar topic on supercritical fluid extraction , supercritical fluid,
g pressure & temperature.
Finally the SCF recompressed & recycled.


APPLICATIONS ------EXTRACTION
Advantages:
It is relatively rapid for low viscosity & high diffusivity of SCF
Easily recoverable.
Non-toxic solvents leave no harmful residue.
High boiling components are extracted at relatively low temp.
Uses:
IT is largely used in Food & Flavouring industry.
This method is used for Decaffenication of tea & coffee.
Extraction of essential oils, aroma materials from spices etc.

INDEX
Introduction
Properties Of SCF
Applications
Applications ------Extraction
Applications----..................[:=> Show Contents <=:]



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