Instructional Manual For Clarification Of Startup In Source Categories Affected By New Source Performance Standards - U.s. Environmental Protection Agency - 1979 Page 98

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().)
0\
PHOSPHATE ROCK
(CALCINED)
MILL
WATER
r--~"".Asa
VACUUM FLASH COOLER
SULFURIC
ACID
REACTOR
FLUORINE
SCRUBI
WEAK PHOSPHORIC ACID RECVCLE
FLUOSILIC IC
...-------... ACID TO RECOVERY
WASH WATER
SLURRY
FILTRATE
RECEIVERS
PHOSPHORIC ACID
(10-35" P 2 0,'
TO 'VPSUM
POND
VACUUM
EVAPORATOR
PHOSPHORIC
AC~D
(54" P 2 0,'
Figure 18.
Flow diagram of the wet-process phosphoric acid production process.

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