[Jewelry making - Article 00116] - Re: [Orchid] Tumbling fine gold jewelry - ion exchange resins

[JETT Research]

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>             would you give us more information on an ion exchange
>     column please,and how to make ,or where to purchase?    thank you 

    One source of the columns and pumping system hardware is Harrington
    Plastics.  They do not supply the resins, just the hardware and you
    can easily find them on the web.  There are several companies that
    supply ion exchange resins but do not supply the hardware.  There are
    even a couple of refining companies that supply the resin "free" if
    you are refining with their company.  I don't usually avail myself of
    that because I can assure you that nothing is really free. 

    A company named Rohm and Haas make resins for many different
    industries including precious metals recovery.  There is also a
    company named Serfilco
    (http://www.service-filtration.com/Ion-Exchange-Systems.html),  that
    seems to be reasonable.  They also make and sell the tank and pump
    hardware as well as the resins.  If they sell the hardware and the
    resins, I tend to think that they are more familiar and will provide
    better support.  I have been wrong on this count many times before. 

Best Regards,
J. Tyler Teague
JETT Research


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