Assertion: sodium carbonate | /r/AtLocation | said insolubles
Facets:
Source sentences:
text: Process of preparing soda ash from crude trona having insolubles containing shortite therein, which comprises calcining the crude trona at a temperature and for a time sufficient to convert said crude trona into anhydrous crude sodium carbonate having insolubles therein, introducing the sodium carbonate content of said crude sodium carbonate in solid phase together with said insolubles and an aqueous solvent having in excess of 6.2 percent of sodium carbonate previously dissolved therein into a dissolver and forming an aqueous solution of said sodium carbonate in the presence of said insolubles, separating the said solution of sodium carbonate and the insolubles, recovering crystals-from said sodium carbonate solution and calcining to produce soda ash, adding additional water to said insolubles and forming an unsaturated solution of sodium carbonate from the sodium carbonate contained in said insolubles, separating said unsaturated solution from the insolubles and using said unsaturated solution in the dissolving solution in said dissolver.