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December 1997

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TechNet <[log in to unmask]>
Date:
Mon, 15 Dec 1997 07:46:12 +1200
Reply-To:
"TechNet Mail Forum." <[log in to unmask]>, Marie Holmgard <[log in to unmask]>
Subject:
Re: Etchant Recycling System
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From:
Marie Holmgard <[log in to unmask]>
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FSL makes a system that is really good and economical. no more h2o2 and
hardly any hcl for cupric etchant. All you do is take out the extra copper,
it is saleable as scrap metal.
Marie

----------
>
>      Is there an economically feasible ammoniacal/cupric etchant recycling
>      system out there? If so, can I expect the recycled etchant to be of
>      the same quality or at least close to fresh etchant?
>
>      TG Yee
>      Hadco Kuching
>
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