114 GEOLOGICAL SURVEY OF ALABAMA 



"I further believe in its washed condition it could be 

 sold to paper, rubber or paint manufacturers, as these 

 several industries consume a considerable quantity of 

 white gritless clay." 



In line with the results of the above tests made by Dr. 

 Reis and his suggestions, samples of this clay were sub- 

 mitted to the Mercer Pottery Company of Trenton, New 

 Jersey, and after testing resulted in an order for a sam- 

 ple carload, which was shipped to Trenton in April of the 

 present year, the car-load being crude run-of-mine. 



This large sample has since been worked up but the 

 results have not yet been ascertained. Exhibit sample, 

 series No. 133 was drawn from this car load shipped to 

 Trenton, N. J., and represents the run-of-mine kaolin. 



Preliminary flotation tests are now being made for 

 the Coosa County Mica Company on the run-of-mine mica- 

 kaolin from the Dadeville mine, to determine the best and 

 most economic method for washing this clay, which will 

 effect a clean preparation of kaolin, together with the 

 complete separation of the small amount of finely divided 

 quartz from the mica carried in the tails;; giving three 

 clean products, the relative commercial values of which 

 individually, so prepared, it is proposed to ascertain by 

 submission of samples to the trade. 



In a preliminary test just completed by the Simplex 

 Ore Separating Process, using a four cell flotation mach- 

 ine *with hydraulic agitation, a practically complete sep- 

 aration of the three products was experimentally effected 

 without difficulty, the test being conducted under the su- 

 pervision of Dr. D. C. Picard of the Picard Laboratories. 



It is apparent from this test that the desired handling 

 of this particular clay presents no difficulties other than 

 those which are clearly understood and have been success- 

 fully solved by various methods. 



The flow sheet of a satisfactory plant would be simple, 

 and would probably be made up of some best adapted 

 form of disintegrator, followed by four flotation cells 

 (three rougher and one kaolin) the product to be handled 

 over Wilfrey or Overstone tables, with final recovery of 

 the washed kaolin in settling tanks. 



