Removal of nickel from cobalt and manganese

Details Removal of nickel from cobalt and manganese Removal of nickel from cobalt and manganese

1979-01-08

1980-10-14

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

423140, 562414, C07F 1504, C07F 1506, C07F 1100

Patent

active

042280915

ABSTRACT:
This invention relates to the removal of nickel, iron and copper co-dissolved with cobalt or manganese, or cobalt and manganese in water so that cobalt, manganese, or cobalt and manganese can be precipitated as carbonates and then converted to their acetates sufficiently low in nickel, iron and copper so that said acetates can be recycled to the liquid phase air oxidation of a di- or trimethyl benzene to its corresponding di- or tricarboxylic acid without material inhibition of such oxidation.

REFERENCES:
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patent: 3380801 (1968-04-01), Williams et al.
patent: 3557200 (1971-01-01), Bersworth
patent: 3673154 (1972-06-01), Trevillyan
patent: 3687992 (1972-08-01), Feiler et al.
patent: 3703573 (1972-11-01), Blytas
patent: 3719694 (1973-03-01), Feiler et al.
patent: 3728366 (1973-04-01), Michlmayr
patent: 3880920 (1975-04-01), Wampfler
patent: 3919306 (1975-11-01), Johnson et al.
patent: 3956175 (1976-05-01), Shigeyasu et al.
Martell et al., Chemistry of the Metal Chelate Compounds, Prentice-Hall, Inc. N.Y., pp. 468 & 469 (1952).

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