Evening Republican, Volume 19, Number 215, Rensselaer, Jasper County, 10 September 1915 — TO UTILIZE THE WASTE COAL [ARTICLE]

TO UTILIZE THE WASTE COAL

Slack and Dust to Yield Oil, Wax and Ammonia. < Experts of the United States Bureau of Mines are much interested in private tests which will be made In Salt Lake City of a new method of extracting from waste coal various by-pro-ducts, such as crude petroleum, paraffin wax and ammonia. This method of utilizing a large part of the coal which Is now wasted was thought out by John D. Scott of Detroit. Dr. Joseph A. Holmes, director of the Federal Bureau of Mines, and his associates have for years called attention to the great loss of natural resources In the wastage of coal slack and coal dust, and If the method of utilizing this mine refuse Is discovered they say, It result in benefits both to the coal Operators and to the general public. Coal slack and coal dust now cost the owners of mines about 60c a ton to remove. The new method of extracting by-products from the material which has been called to the attention of the Government’s mining engineers, will make this refuse worth from |1.50 to $3 a ton.