FLOTATION OF COBALT-RICH FERROMANGANESE CRUST FROM THE PACIFIC-OCEAN

被引：5

作者：

HIRT, WC

RICE, DA

SHIRTS, MB

机构：

[1] U.S. Bureau of Mines, Salt Lake City Research Center, Salt Lake City, UT 84108

来源：

MINERALS ENGINEERING | 1991年 / 4卷 / 5-6期

关键词：

FERROMANGANESE CRUST; MANGANESE; COBALT; NICKEL; FLOTATION; EXCLUSIVE ECONOMIC ZONE; OCEAN MINERALS;

D O I：

10.1016/0892-6875(91)90001-C

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Deposits of ferromanganese crust containing cobalt and nickel occur on the seafloor in the Pacific Ocean near the Hawaiian Islands and Johnston Atoll. This paper describes developmental flotation metallurgy to separate crust from its associated substrate gangue. Important variables in ferromanganese crust flotation include reagent type, aeration rate, conditioning time and agitation intensity, pH, temperature, water type, and feed size distribution. Flotation in seawater of -600-mu-m (-28 mesh) material assaying 6.2% Mn, 0.2% Co, and 0.13% Ni with diesel fuel-crude tall oil-sulfonate collectors produces concentrates assaying 15% Mn, 0.6% Co, and 0.3% Ni with recoveries of 89 to 94% while removing 62% of the feed weight.

引用

页码：535 / 551

页数：17

共 31 条

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[10]

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