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Selective Recovery of Nickel, Cobalt, Manganese from Sea Nodules With Sulfurous Acid.

Authors
Pahlman-JE; Khalafalla-SE
Source
U S Pat 4 138 465 1979 Feb; :
Link
NIOSHTIC No.
10011925
Abstract
Nickel, cobalt, and manganese are recovered from marine nodules by leaching with h2so3. Nickel and CO are selectively extracted from copper by adjustment of process variables such as leach time, volume, and acid concentration. Thus, the nodules are ground to < approximately 100 mesh and leached with a solution of dilute h2so3 at 25 deg c and 1 atm. The ratio of total moles of so2 in the leach solution to the weight of ground nodules is approximately 0.94-1.25 For complete extraction of ni, CO, and mn without appreciable extraction of cu.
Publication Date
19790201
Document Type
PA;
Fiscal Year
1979
Identifying No.
PAT 4,138,465
NIOSH Division
TCRC;
Source Name
U.S. Pat. 4,138,465; Feb. 6, 1979; Chem. Abstr. 90:90,541N
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division