Heyl & Patterson Blog

Talc Processing and Applications

Posted by H&P Blog on Wed, Dec 09, 2015 @ 09:18 AM

Talc is a metamorphic rock and the softest mineral on Earth.  It is so soft that a fingernail will scratch its surface, and geologists can recognize it by its greasy feel.  Talc is a hydrous silicate of magnesium, Mg3Si4O10(OH)2, and usually contains small quantities of nickel, iron and aluminum as impurities.  It occurs commonly in thin layers known as foliafolia, but is also found in coarsely granular, finely granular crystalline masses.  Talc appears transparent to opaque, is rarely colorless, and can be found in hues ranging from white to purple.  One form of this mineral is soapstone, or steatite, which is a larger granular form of talc that is also rich in magnesium.



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Tags: process equipment, calciners, mineral processing, rotary coolers

Rotary Coolers Optimize the Potential of Bulk Materials

Posted by H&P Blog on Wed, Aug 06, 2014 @ 10:23 AM

Sand is one of many bulk mateials, and is a vital component in a variety of industrial applications.  From simple molding to its use as a crucial ingredient in concrete and asphalt, much of the world we know would be substantially different without sand.  A problem that those in the industry face, however, is that part of the process for treating sand for some applications heats it up considerably, requiring it to be cooled before further use.

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Tags: rotary coolers