U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Report of Investigations 8027: Recovery of Nickel and Cobalt from Low-Grade Domestic Laterites

Public Domain


Details

  • Personal Author:
  • Description:
    A process is being developed by the Bureau of Mines to selectively recover nickel and cobalt from low-grade domestic laterites. The process involves: (1) selective reduction with carbon monoxide at 350 deg to 600 deg c with additions of pyrite to those ores containing more than 5 pct magnesia, (2) a multiple stage oxidizing leach of reduced material in an ammonia-ammonium sulfate solution, (3) selective extraction, (4) precipitation of cobalt from the raffinate with hydrogen sulfide, (5) removing any magnesium present by ion exchange or precipitation. (6) Recycling the ammonium hydroxite-ammonium sulfate solution back to the leach step, (7) stripping the nickel from the solvent with dilute sulfuric acid, and (8) electrolytic recovery of the nickel from the electrolyte. Recoveries from a laterite containing 1 pct nickel and 0.2 pct cobalt were 90 pct nickel and 83 pct cobalt. In this process the energy requirements are lower than those reported for most other processes for nickel recovery. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • Subseries:
    Report of Investigations
  • Document Type:
    Text
  • Genre:
    Report
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    ALRC - Albany Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    21 pdf pages
  • NIOSHTIC Number:
    nn:10009694
  • Citation:
    11th Int'l Miner Proc Cong Italy 4/75 Cnte Minerario Sardo Univ Di Cagliari Pp 229-42 :229-42
  • Federal Fiscal Year:
    1978
  • Peer Reviewed:
    False
  • Source Full Name:
    11th Int'l. Miner. Proc. Cong., Italy, 4/75; Cnte Minerario Sardo, Univ. Di Cagliari, Pp 229-42
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:21e1b51e218f28acb0712482b69e436172054576481cf188094a5bd574acb84c9357fe7d49aa22fd16231db130ff895fd62e51d4532ecddb64da8c3bd4890336
  • Download URL:
  • File Type:
    Filetype[PDF - 1.35 MB ]
PREVIOUS
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP