Laboratory Testing & General Mineral Processing Engineering

Laboratory Testing & General Mineral Processing Engineering

  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Mineral Processing or Laboratory Work.
  • OR Select a Topic that Interests you.
  • Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
    Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
  • Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.

Spent Catalyst (1 reply)

4 months ago
dgt96 4 months ago

Hello, not sure which topic to ask this question in, but here it goes. Im selling some industrial spent catalysts and my client asked if the catalyst was "roasted" or "unroasted". I had never heard this terminology. Does anybody here has experience with this that might be of assistance? Thank you for your time.

4 months ago
SmartDog 4 months ago

You mention spent catalyst, this covers a very wide field and a very wide range of methods to produce the catalyst.  Taking one example of catalyst for hydrocarbon processing the material is usually made by calcining an aluminia oxide pellet that has been impregnated with other metals.  This calcining occurs at temperatures of around 2000 deg F (+/- a few hundred degrees).  While this is not technically a roasting process as the aim is to cause some fusion, where roasting is done at a significantly lower temperature, it is definitely not unroasted. 

Please join and login to participate and leave a comment.