HYDROFLUORIC ACID SCRUBBER SYSTEMS

PANESKO JV ; MERRITT HD

关键词: ALUMINIUM;    FLOWSHEETS;    HEATING;    HYDROFLUORIC ACID;    NITRATES;    POTASSIUM HYDROXIDES;    SCRUBBERS;    WASTES;    WATER;   

DOI  :  10.2172/1016165
RP-ID  :  ARH-2343
PID  :  OSTI ID: 1016165
Others  :  TRN: US201113%%182

学科分类：社会科学、人文和艺术（综合）

美国|英语

来源: SciTech Connect

【 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.