The recovery and separation of mineral values from geothermal brines. Research report, 1974--1975

Technical Report · Thu Jun 12 04:00:00 EDT 1975

OSTI ID:7136253

Christopher, D H; Stewart, M; Rice, J

The laboratory study on recovery and separation of minerals from Sinclair No. 4 geothermal brines developed methods for recovering iron and manganese hydrated oxide compounds as separate components essentially quantitatively. In addition, lead and zinc values were also removed, essentially quantitatively, as co-precipitated compounds together with the hydrated manganese oxides. Processes were developed for the recovery of iron, manganese, zinc, lead, barium, lithium, and ammonia values from the brine. Greater than 99 percent of the total heavy metal values were separated at pH /sup +/ 8.7 under nonoxidizing conditions using lime as a precipitant. The remaining heavy metals were subsequently brought down with lime under oxidizing alkaline conditions. (GRA)

• Research Organization: Hazen Research, Inc., Golden, Colo. (USA)
• OSTI ID: 7136253
• Report Number(s): PB-245686
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150700* -- Geothermal Energy-- Products & By-Products
ALKALI METALS
ALKALINE EARTH METALS
AMMONIA
BARIUM
BRINES
ELEMENTS
FLUIDS
GEOTHERMAL FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
IRON
LEAD
LITHIUM
MANGANESE
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
RECOVERY
SEPARATION PROCESSES
TRANSITION ELEMENTS
ZINC