• Copper recovery using leach/solvent extraction ...

    Copper recovery using leach/solvent extraction/electrowinning technology 65 (Figure 2) and a catalytic amount of LIX 63, was introduced in 19657 and in March 1968 the first commercial copper L/SX/EW operation, the Bluebird plan of Ranchers

  • Copper Recovery by Solvent Extraction Techniques

    The extraction of copper from aqueous solution by the application of organic solvents such as LIX 64N or the Ashland Chemical products Kelex 100 and 120 proceeds chemically, according to the following equation: (2RH) org. + CuSO4 aq. = (R2Cu) org. + H2SO4 aq.

  • Solvent Extraction of Copper Using TBP, D2EHPA and MIBK ...

    Jan 29, 2019· Abstract. In this research, a synergetic system of solvent extraction process was developed to recover copper from aqueous solutions with tri-n-butyl phosphate (TBP), di-2-ethyl hexyl phosphoric acid (D2EHPA) and methyl iso-butyl ketone (MIBK).

  • Comparative study of organic solvents for extraction of ...

    Copper is leached from its dross as Tetra-amino-Copper (II)-carbonate complex in the solution. Copper leached solution is guided through the solvent extraction process, using LIX-54 as a solvent...

  • SX Solvent Extraction of Metals: A Design Manual

    Copper Recovery by Solvent Extraction. A common method of copper recovery from oxide ores is dump leaching in which the excavated ore is crushed and dumped on an impervious surface in “lifts” of anything from 10 to 100 ft deep. Sulphuric acid is sprayed onto the levelled off dump via a network of pipes designed to give even distribution.

  • Comparative study of organic solvents for extraction of ...

    Solvents like LIX 84 are also widely used for copper extraction but certain constraints like loading of NH 3 along with copper in organic phase has restricted the testing of solvent [6]. Extracted ammonia has to be removed from organic solvent before stripping or else there will be a chance of ammonium sulfate precipitation during copper electrowinning.

  • Solvent Extraction Process SX: Hydrometallurgical ...

    Analytical chemists have been using solvent extraction in the laboratory for many years for extraction of molecular species from aqueous solutions by organic solvents. However, the requirements and objectives of an analytical procedure are quite different from those of a profit producing mill flowsheet. The chemical process industries […]

  • Solvent Extraction - an overview | ScienceDirect Topics

    Solvent extraction is generally not used to treat in organics (acids, bases, salts, heavy metals). Solvent extraction processes are not designed to treat particular compounds, and extraction efficiencies and processing rates are lower when there are high concentrations of indigenous organic compounds (humic and tannic acids in soil).

  • SX Solvent Extraction Process Principles Theory

    A high copper/nickel ratio on the copper loaded organic is obtained by using an extra extraction stage in which copper crowds nickel from the loaded organic, i.e., the copper in an ammoniacal copper and nickel containing solution, when contacted with an organic loaded with nickel, will …

  • Copper & Nickel Solvent Extraction

    Nickel and copper were co-extracted from ammoniacal ammonium sulfate leach liquors (pH-9.5) with LIX 64N extractant in a laboratory-size mixer-settler continuous circuit. Three extraction stages resulted in >99-pct extraction of nickel, substantial copper extraction, and essentially no cobalt extraction …