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Re: Reducing hexavalent chromium to trivalent chromium

Is the slag from the glass melting process?  That process can be a source of air emissions of hexavalent chromium.  Knowing that would help think about options, although chrome reduction when the chrome is fixed in slag sounds like a non-starter.
Terry Foecke
----- Original Message -----
Sent: Thursday, June 05, 2008 10:26 AM
Subject: Reducing hexavalent chromium to trivalent chromium

Good morning!
I have a client who makes fiberglass insulation and during their manufacturing process, they produce a slag contaminated with hexavalent chromium.  We're trying to find a way to reduce the chromium back down to trivalent.  Does anyone on the list have information on production applications and working conditions?  Feel free to reply directly if you wish.
David A. Carter
Pollution Prevention Specialist
Pollution Prevention Institute
Kansas State University
133 Ward Hall
Manhattan, KS  66506-2508
785-532-4998 (office)
785-341-2804 (cell)
785-532-6952 (fax)

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