| Author |
Message |
    
Michael C Mound (mike)
New member
Username: mike
Post Number: 2
Registered: 7-2007
| | Posted on Wednesday, July 11, 2007 - 2:26 am: | |
Hi,
I have some experience in this area, especially with limestone materials, dolomite, sodium compounds, silica, and various feldspars. Of course, there are feldspars and there are feldspars, as the reflectance of orthoclase and plagioclase materials are very different. Sometimes nepheline syenite (a silica-poor granitic material)is a key material source for glass manufacturing. To proceed further would get into commercial discussions, so if Dr Takashi is interested further, he is welcome to contact me outside of this forum.
Mike Mound |
MANOEL TAKASHI DAIKUARA
| | Posted on Friday, December 21, 2001 - 8:12 am: | |
Dear Bruce,
I would appreciate to know if the NIR is able to identify raw material for glass industry as dolomite, limestone, feldspar, soda ash, saltcake and sand. We need only a qualitative identification in order to avoid silo cross contamination.
If the NIR technology is able to do so, could you please indicate any company that are familiar with this sort of material?
Our company belong to Saint Gobain and Pilkington group.
Your help will be appreciated very much.
Kind Regards,
M.Takashi |
Bruce H. Campbell (Campclan)
| | Posted on Wednesday, December 26, 2001 - 6:05 am: | |
Dear Dr. Takashi,
I would think that NIR could distinguish between the various substances you listed, as each contain minerals and minerals have absorption bands in the NIR region. One difficulty is that the bands from each mineral can be shifted depending on how many oxygen atoms/hydroxyls are in each and that depends on the minerals history. I have done some work similar, but was interested in doing quantitative analyses instead of qualitative. Does anyone else have a background in this type of samples and can extend this answer?
With respect to NIR instrumentation, I would contact a number of companies. For their names and contact information, look at the equipment listing here.
Bruce Campbell |
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