Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkali metal
Patent
1979-01-25
1980-09-30
Langel, Wayne A.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkali metal
423189, 423209, C01D 700
Patent
active
042255651
ABSTRACT:
In the treating of waste slags produced in the desulfurization and/or dephosphorization of molten pig iron with alkali carbonates, the alkali is recovered by extracting said waste slags with hot water while feeding carbon dioxide gas to form an extraction solution having a pH of 9.0-11.5 and recovering alkali carbonates from said extraction solution. The extraction solution contains little sulphur and silicates, from which alkali carbonates can be easily recovered with high yield therefrom.
REFERENCES:
patent: 3701737 (1972-10-01), Goldstein
Iba Masahisa
Marukawa Katsukiyo
Okamoto Setsuo
Yamada Kazunari
Langel Wayne A.
Nissen J. Harold
Sumitomo Metal Industries Limited
Tokuyama Soda Company Limited
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