Assertion: cryolite | /r/HasProperty | withdrawn to thickener
Facets:
Source sentences:
text: The cryolite precipitates duringthis reaction and is withdrawn to a dewatering zone, including a thickener where it is stirred by means of a slowly revolving rake to obtain a thick underow of cryolite product and an overflow of liquor which is a solution of sodium carbonate and sodium bicarbonate, and which contains a small residual amount, about 0.85 gram per liter, of uorine.