My watch list
my.chemeurope.com  
Login  

White coal



White coal is a form of fuel produced by drying chopped wood over a fire. It differs from charcoal which is carbonised wood. White coal was used in England to smelt lead ore from the mid-sixteenth to the late seventeenth centuries. It produces more heat than green wood but less than charcoal and thus prevents the lead evaporating. White coal was produced in distinctive circular pits with a channel, known as Q-pits. They are frequently found in the woods of South Yorkshire.

Additional recommended knowledge

The term is also used to refer to Hydroelectricity. [1]

White coal is also made from Ground nut husk.

References

  1. ^ The Book of Knowledge, Vol. 9 p. 3220 (1945 ed.)
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "White_coal". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE