AP-42, CH 8.9: Phosphoric Acid
2015-9-10 · production are shown in Table 8.9-3. 126.96.36.199 Wet Process - Major emissions from wet process acid production includes gaseous fluorides, mostly silicon tetrafluoride (SiF4) and hydrogen fluoride (HF). Phosphate rock contains 3.5 to 4.0 percent fluorine. In general, part of the fluorine from the rock is precipitated out with the gypsum, another ...Phosphorus Fertilizer Production and Technology2019-3-29 · production" and that a scarcity of PR is looming • An exhaustive review (IFDC, 2010) provides more details on global P reserves. For greater detail see "World Phosphate Rock Reserves and Resources," IFDC Technical Bulletin 75, available from IFDC, Muscle hoals, AL 35662, U.S.A.