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Thread: Ball Milling- Sticking of Powders

  1. #1
    hps Guest

    Ball milling- sticking of powders

    hi ,

    I am doing ball milling on some powders. but the problem I am facing is that the powders are sticking to the vial walls and its very difficult to recover them.

    can somebody please let me know the things which I should do to prevent the sticking of the powders to the walls of the vials.


    HPS

  2. What kind of loading are you using.
    Also media size and rotation speed are important.

    Contact us if you need assistance.
    Antonio Reis
    reis@vitrom.com
    www.vitrom.com
    Vitrom Manufacturing Consultants.

  3. #3
    hps Guest
    thanx for the reply.....

    I am using Zirconia vials and grinding media.......and the material is titania.

    the speeds I am using are 400 rpm ( in the opposite direction )
    for the planets and 200 rpm for the main disk.

    can you please let me know if I am using the right parameters. and if there is any dispersion agent that will prevent the sticking and also will not contaminate the powders.

    thanks

    HPS

  4. Perhaps it might be helpful if you provided the exact details of the mill and process you are using. For example

    Manufacturer and model of mill.
    Volume of vial
    Mass of powder
    size of media
    volume of media
    grinding time
    objective of the grinding process.
    Sizing of feed and desired product.

    What do you consider contamination? For example, there are various organic compounds that you could try.

    How hot does your mill get? Are you taking any steps to eliminate moisture during handling?

    The more information you can provide, the more likely it is that one of the forum contributors can assist you.

    By the way, where are you posting from?

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