Removal of trace metal and metalloid species from brine

Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing inorganic compound

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423179, 423184, 423185, C25B 116, C25B 126

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active

056814470

ABSTRACT:
Process for the removal of heavy metal, metalloid and fluoride species present in trace mounts from aqueous brine of use in the production of chlorine and sodium hydroxide by electrolysis in membrane cells or in chlorate production; particularly to said removal by adsorption on hydroxyapatite; and more particularly to adsorption on bone charcoal.

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Kavanagh et al: Investigation of Absorbers provided by Tate & Lyle Process Technology to Test Their Efficiency for the Removal of Radionuclides from Aqueous Waste Streams no date.
Welsh et al: "An Ultrafiltration Activated Carbon Treatment System for renovating Fishery Refrigeration Brines", J. Can. Inst. Food Sci. Technology (1984), 17, #2, pp. 92-96 no date.
Singer: "Activated Carbon for the Removal of Trace Metals from Aqueous Solutions", Ion Exchange For Pollution Control, Chapter 21, p. 195, vol. 2, 1979 no date.
Wan et al: "Research and Development Activities for the Recovery of Gold from Noncyanide Solutions" no date.
Zhiying et al: "Determination of Trace Lead by on-line FIA Hydroxyapatite Ion-Exchange Preconcentration AAS", Ion Exchange And Absorption, 9 (6), 1993, p. 504 no month.

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