Tuesday, August 17, 2010

Applied Separations and the "12 Principles of Green Chemistry": Safer Solvents and Auxiliaries

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. This week we will be addressing "Safer Solvents and Auxiliaries".

Green Chemistry Principle
Safer Solvents and Auxiliaries




EPAApplied Separations
The use of auxiliary substances (e.g., solvents, separation agents, etc.) should be made unnecessary wherever possible and innocuous when used.
Applied Separations SCF systems use supercritical CO2 to simulate solvents, eliminating or greatly reducing the need for solvents. Supercritical CO2 is “tunable” and is able to mimic solvents by adjusting the pressure. Change the pressure, and you change the density, which changes the solvating power.


For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html

Tuesday, August 10, 2010

Applied Separations and the "12 Principles of Green Chemistry": Design Safer Chemicals and Products

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. This week we will be addressing "Designing Safer Chemicals and Products".

Green Chemistry Principle
Design Safer Chemicals and Products




EPAApplied Separations
Chemical products should be designed to effect their desired function while minimizing their toxicity.
Applied Separations SCF systems minimize toxicity by using supercritical CO2. The use of supercritical CO2 greatly reduces (if not eliminates) the use of toxic materials. Applied Separations supercritical fluid systems use existing carbon dioxide.


For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html

Thursday, August 5, 2010

Applied Separations and the "12 Principles of Green Chemistry" Week 1: Prevention

The U.S. Environmental Protection Agency (EPA) has published their “12 Principles of Green Chemistry” originally published by Paul Anastas and John Warner in Green Chemistry: Theory and Practice (Oxford University Press: New York, 1998) http://www.epa.gov/gcc/pubs/principles.html

Applied Separations’ supercritical fluid extraction systems fall in line with these 12 principles. In the coming weeks, we will be briefly addressing each of these points.

Green Chemistry Principle
Prevention




EPAApplied Separations
It is better to prevent waste than to treat or clean up waste after it has been created.
Applied Separations SCF systems prevent waste by using supercritical CO2. The use of supercritical CO2 greatly reduces (if not eliminates) the use of hazardous chemicals. If fewer chemicals are used, there are less hazardous waste disposal concerns.


For more information, view the What is Supercritical Fluid? presentation on the Applied Separations website.

http://appliedseparations.com/ASInteractive/Overviews/SCF/What_is_SFE/player.html