Disposal of waste aqueous boron trifluoride solutions

Details Disposal of waste aqueous boron trifluoride solutions Disposal of waste aqueous boron trifluoride solutions

1988-11-14

1990-03-27

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 97, 106100, C04B 702

Patent

active

049117580

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.

REFERENCES:
patent: 3857872 (1974-09-01), Conner
patent: 4436645 (1984-03-01), Ceaser
patent: 4518508 (1985-05-01), Conner
patent: 4576644 (1986-03-01), Goldmann
patent: 4601832 (1986-07-01), Hooykaas
patent: 4623469 (1986-11-01), Conner
patent: 4705658 (1987-11-01), Gayczarczyk

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