HYDROFLUORIC ACID SCRUBBER SYSTEMS

JV, PANESKO ; HD, MERRITT

Hanford Site (Wash.)

关键词: Aluminium;    Heating;    Flowsheets;    Nitrates;    Hydrofluoric Acid;   

DOI  :  10.2172/1016165
RP-ID  :  ARH-2343
RP-ID  :  AT(45-1)2130
RP-ID  :  1016165

美国|英语

来源: UNT Digital Library

【 摘 要 】

Each year over a million gallons of water are used to scrub hydrogen fluoride (HP) vapors from waste off-gas streams. Use of other potential scrubber solutions such as potassium hydroxide (KOH), aluminum nitrate nonahydrate (ANN), and monobasic aluminum nitrate (monoban) would result in significant volume reductions. A laboratory study was initiated to (1) demonstrate the effectiveness of these scrubber solutions to sorb HF, (2) determine if unexpected reactions occurred at flowsheet conditions, and (3) determine the consequences of deviation from flowsheet conditions. Caustic or aluminum scrubber solutions remove hydrogen fluoride from off-gas streams. Solids which appear with aluminum could be avoided by heating the scrubber solution.