Recovery of lead and silver from plumbojarosite by hydrothermal sulfidation and chloride leaching
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields



Publication Date Range:


Document Data


Document Type:






Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page


Recovery of lead and silver from plumbojarosite by hydrothermal sulfidation and chloride leaching

Filetype[PDF-6.11 MB]

Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
  • English

  • Details:

    • Description:
      "The U.S. Bureau of Mines investigated a hydrothermal sulfidation (hts) and chloride leaching procedure to recover lead and silver from plumbojarosite. The plumbojarosite, generated during pressure- oxidatve leaching of zinc concentrate in a commercial operation, contained, in percent, 25.4 PB, 18.8 Fe, 1.4 Zn, 29.5 Sulfate (so4 2- ), 3.2 Elemental sulfur (s0), 13.4 Total s, and 7.4 Tr oz/st ag. The hts was conducted in an autoclave and converted the plumbojarosite into amorphous iron oxide and liberated the pb and ag as sulfides (s2-). The best operating conditions were 50 g of plumbojarosite and 7 pct s0 (2.04 G s0 added) in 500 ml of 2.0-Mol/l nh3 at 150 deg c for 1 h. The sulfidation product contained, in percent, 37 pb, 28 fe, 2 so4 2-, 7 total s, and 11.2 Tr oz/st ag. Flotation of the sulfidation product was conducted at ph 3 with 15- pct pulp density and 2.4 Lb/st of isopropyl xanthate as collector. The flotation concentrate contained 43 pct pb, 25 pct fe, and 13 tr oz/st ag. Fecl3 leaching of the sulfidation product in a resin kettle extracted 98 pct pb and 97 pct ag from the sulfidation product, and hcl-02 leaching in a shaker glass bottle extracted 99 pct pb and 98 pct ag. Both leach residues met the Environmental Protection Agency's toxicity characteristic leaching procedure (epa- tclp) standards for nonhazardous wastes. The hts and chloride leaching procedure is a potentially effective method for detoxification of plumbojarosite-bearing residue from the zinc pressure-leaching circuit." - NIOSHTIC-2

      NIOSHTIC no. 10007337

    • Document Type:
    • Main Document Checksum:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at