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  1. paulspoon

    Colour Units

    Hello, I am trying to compare two different solutions on the basis of colour. Can anyone tell me if the coulur units "Hazen" are equivalent to "Pt/Co". If not, can I do a simple conversion between them? Thanks
  2. paulspoon

    Amine effect on Distillation

    Hello, We currently recover both Acetone and Methanol (different campaigns) in a solvent recovery unit using direct injection steam to the distillation column. We are now considering adding Amines to the steam in order to help prevent corrosion of pipe work. My question is, does anyone know if...
  3. paulspoon

    Amines in Steam

    Hello, We currently recover both Acetone and Methanol (different campaigns) in a solvent recovery unit using direct injection steam to the distillation column. We are now considering adding Amines to the steam in order to help prevent corrosion of pipe work. My question is, does anyone know if...
  4. paulspoon

    Mixing Vessel Dimensions

    For optimum mixing of a powder in a liquid, are there ideal dimensions for the such things as: height of liquid above the impeller, impeller rpm etc. The reason i ask is that we are trying to mix 16kg of a powder with 64kg of a liquid and to be honest the results we are getting are hit and miss...
  5. paulspoon

    Reboiler Corrosion

    The reboiler is completely manufactured from 316 stainless. The most corrosion was seen on the bottom half of both tube plates where it was so bad in some areas that it could not be re-welded.The reboiler is mounted horizontally. The two streams that go through the reboiler separtately are...
  6. paulspoon

    Reboiler Corrosion

    We are currently experiencing severe corrosion in our reboiler. Two main chemical streams pass through the reboiler at differnet times but never together. These are Water & Acetone and the other is Methanol, DMAc and Water. Can anyone tell me what is the most likely cause/reaction of the...

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