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.
Laboratory Ventilation Specialist
Department of Environmental Health and Safety
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.
On Jun 24, 2015, at 5:53 PM, Jake Hernandez <Jake.Hernandez**At_Symbol_Here**UTSA.EDU> wrote:
Our university just recently became a large quantity waste generator. We have been trying to find ways to reduce/reuse/recycle.. One of our largest wastes is from the organic chemists. The waste in question is hexane/ethyl acetate. Has anyone heard of a way to separate these two and reuse them?
Safety Specilaist 2
Lab Safety Division
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