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From: Ellen M. Sweet <ems325**At_Symbol_Here**CORNELL.EDU>
Subject: Re: [DCHAS-L] Quick question for the group
Date: Jul 2, 2015 10:11 UTC
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DCHAS-L
In-Reply-To:
Hi everyone,
A couple of years we had a group work with a company to see if they could purify some solvents and reuse for their own purposes.. They ended up purchasing the recycling unit, to the tune of $20,000. But, they reduced the volume of spent
solvents they were generating by quite a bit.
This goes into our Waste Minimization report now. We are also a LQG. This process is exempt from the waste regulations. But, I would clarify that with your state, just to be sure.
http://www.cbgtechnologies.com/
Good Luck!
Ellen Sweet
Laboratory Ventilation Specialist
Department of Environmental Health and Safety
Cornell University
315-730-8896
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]
On Behalf Of Steven Kirincich
Sent: Wednesday, July 01, 2015 5:43 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] Quick question for the group
As a former organic and medicinal chemist, I can say with certainty that the ethyl acetate and hexanes do not need to be separated from each other. As long as the purification process provides a clean binary mixture, the chemists can use
the recycled mixture and add either ethyl acetate or hexanes to get the desired ratio.
Steve Kirincich