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  1. Tebza33

    Estimating heat transfer coefficient in a forced convection oven

    I would like to estimate heat transfer coefficient in a forced convection oven that is open on both ends. Oven has multiple heating zones, with zone 1 at 170 degrees C, zone 2 at 180 and zone 3 at 200. This temperatures may change depending on the batch running. I understand the heat transfer...
  2. Tebza33

    Tin plated steel sheets have discoloration during curing of coating

    Hi I presently have a problem with tin plated sheets showing discoloration during curing of the coating material inside the oven. Current temperature settings on the oven only go up to 200 degrees celcius and they are heated for approx 12 minutes. My question is can temperature variations...
  3. Tebza33

    Thermodynamic model for hydrometallurgical reaction

    H2PtCl6 + 6NaNO3==>6NaCl +2HNO3 + Pt(NO3)4 happens under fusion at about 500 degrees. Does anyone know if this reaction can happen in aqeous form? Meaning reacting aqeous H2PtCl6 and NaNO3 in a heated vessel and stirring. Tried to find sources for this information but helpless. Is there a model...
  4. Tebza33

    Removal of dissolved NaCl from 10-16% PtN solution?

    You are right about PtN formula, I have got used to the short hand notation. We are not making Adam's catalyst, but Pt(NO3)4, but want to be able to separate it fron NaCl as now and then it becomes a nuisance, hence we fail on Specification. If you know of a way to separate the two, it would be...
  5. Tebza33

    Removal of dissolved NaCl from 10-16% PtN solution?

    PtN solution is aqueous platinum nitrate, we use 55% nitric acid, thats what makes up the bulk of the solution.
  6. Tebza33

    Removal of dissolved NaCl from 10-16% PtN solution?

    I am presently trieng to figure out the removal of NaCl from PtN solution. No hydrocarbons as carriers if you're planning liquid-liquid extraction, PtN is a good oxidising agent and u'll be cooking up an explosion. I wanted to take advantage of the eutectic mixture, by adding more NaCl, drop...

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