Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1976-04-30
1977-08-09
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204238, C25F 302, C25F 700, C25F 702
Patent
active
040409201
ABSTRACT:
An electrolytic solution containing chromium (VI) compound is admixed with an aqueous solution of ferrous nitrate or ferrous chloride and pH of the mixture is adjusted to 8 to 8.5 with an aqueous solution of sodium hydroxide and the sludge containing chromium (III) compound is separated.
REFERENCES:
patent: 3255097 (1966-06-01), Williams
patent: 3658470 (1972-04-01), Zievers et al.
patent: 3761381 (1973-09-01), Yagishita
Misu Takashi
Takada Koji
Mitsubishi Denki & Kabushiki Kaisha
Tufariello T. M.
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