Disposal of waste aqueous boron trifluoride solutions
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United States of America Patent
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Mar 27, 1990
Grant Date -
N/A
app pub date -
Nov 14, 1988
filing date -
Nov 14, 1988
priority date (Note) -
Expired
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Abstract
Boron trifluoride wash water from an olefin oligomerization process can be disposed of in an environmentally safe manner by hydrolysis to substantially eliminate fluoroborate anions (BF.sub.4 --), mixing with CaO or Ca(OH).sub.2 and concentration in any sequence followed by mixing with portland cement and solidification. The cured cement is highly resistant to aqueous leach of boron and fluorine containing products.
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