Assertion: phosphoric acid | /r/ObjectUse | used in the digestion stage
Facets:
Source sentences:
text: While the quantity of phosphoric acid used in the digestion stage is not critical in the sense that considerable excess may be used if desired, it is nevertheless highly advantageous to employ comparatively limited amounts, because the use of large excess of recycled product phosphoric acid increases the circulating load on the system and the in-process inventory, thus diminishing the effective capacity of the equipment, and also increases the amount of heat that must be supplied in order to maintain the indigestion stage at the required temperatures.