[AR] Re: Ion exchange resins for cleaning peroxide

  • From: qbert@xxxxxxxxxxxxxxx
  • To: arocket@xxxxxxxxxxxxx
  • Date: Mon, 11 Jul 2016 12:46:07 -0600

Ben

I original talked with Erik Bengtsson (Peroxide Propulsion) about Ion exchange and silver catalyst
poisoning way back when Armadillo Aerospace was doing their HTP motor. The filters he suggested to
me were not available here in Canada so we tried several different types ending up with an
Amberlite IRA-400 filter system to clean our oilfield industrial grade 50% H2O2.

Literature available to us indicated that Amberlite IRA-400 was used to run 35% H2O2 with absolutely
no reaction and no loss of peroxide however our feed stock was 50% and so after doing several runs
behind blast shields we found the process to be safe and effective. Being over cautious we kept the
experimental systems cooling bath in place even though it was not necessary at our feed flows.

- We ran our 50% feed stock through the ion exchange pack for a total of over 4000 imp gal.
- The final result was a reduction in  by as much as 50% based on run time.
- Rejuvenation and cleaning of the filter after each run is exceptionally important
- we replaced the filter every 1000 gal.

Robert




At 09:56 AM 7/11/2016, you wrote:

Thanks. I'm sure Mr. Carden would reply privately, but I was hoping for a public source to point someone to from someone with actual experience like yours (rather than ignorant people talking out of their ass).

Ben

On Monday, July 11, 2016, Paul Breed <<mailto:paul@xxxxxxxxxx>paul@xxxxxxxxxx> wrote:
You do this at 50% before concentrating.....
Talk to Michael Carden this is what he does...


On Mon, Jul 11, 2016 at 3:59 AM, Ben Brockert <wikkit@xxxxxxxxx> wrote:
Anyone have any quick references on it? My (possibly wrong)
understanding of it was that you can run HTP through an ion exchange
resin pack to remove the stabilizers that result from concentrating
lower percentages of stabilized peroxide. But that it is a somewhat
hazardous process, both from the chemical composition of the resin and
the usual reason that HTP shouldn't be run through a filter.

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