gold separation from sodium sulphide solution

Extraction of gold, palladium and platinum from chloride

Taianta, Vol. 25, pp 163165 Pergamon Press, 1978. Printed in Great Britain EXTRACTION OF GOLD, PALLADIUM AND PLATINUM FROM CHLORIDE, BROMIDE AND IODIDE SOLUTION WITH DI Taianta, Vol. 25, pp 163165 Pergamon Press, 1978. Printed in Great Britain EXTRACTION OF GOLD, PALLADIUM AND PLATINUM FROM CHLORIDE, BROMIDE AND IODIDE SOLUTION WITH DInOCTYL SULPHIDE (DOS) IN CYCLOHEXANE M. MOJSKI Department of Analytical Chemistry, Warsaw Technical University, Noakowskiego 3, 00664 Warsaw, Poland (Received 31 May 1977.

APPLICATIONS FOR BIOGENIC SULPHIDE REAGENT FOR

of goldcopper ores and in the separation by flotation of copper and molybdenum. In all cases, biogenic sulphide reagent can be used to replace chemical reagents such as sodium hydrosulphide. of goldcopper ores and in the separation by flotation of copper and molybdenum. In all cases, biogenic sulphide reagent can be used to replace chemical reagents such as sodium hydrosulphide. Biogenic sulphide, produced on demand at site, results in a superior metal sulphide product and offers significant cost savings and provides the additional

Method for separation of elemental sulphur and sulphide

Method for separation of elemental sulphur and sulphide concentrate from intermediate products of sulphide concentrates hydrometallurgy processing. C22B3/04 and sodium sulphide in the Method for separation of elemental sulphur and sulphide concentrate from intermediate products of sulphide concentrates hydrometallurgy processing. C22B3/04 and sodium sulphide in the form of a 10%solution. The flow rate was determined by maintaining the pH at a given level. Method includes water leaching of dust with copper and

Separations involving sulphides Separation of platinum

EXPERIMENTAL Separation of platinum from lead Measured volumes of the standard solutions of lead acetate3 (prepared with acetic acid) and platinic chloride4 were mixed togehtcr; the free acid was neutralized with 8.N sodium hydroxide solution, and treated with 6070 ml of aN sodium sulphide reagent6, followed by a sufficient excess of izN

Gold Sulfite Mineral Processing amp; Metallurgy

Sulphites of Gold, alkaline sulphites, or sulphur dioxide, which reduce gold trichloride easily, do not produce the same effect on a solution of an alkaline aurate. If sodium bisulphite is added to a boiling solution of sodium aurate (NaAuO2) a yellowish precipitate is formed, soluble in excess of sodium bisulphite, and consisting of a double sulphite of gold and sodium, or sodium auro

THE ALKALINE SULFIDE HYDROMETALLURGICAL SEPARATION

arsenic and some gold to solution. 2.2 Selective Recovery of Gold from Alkaline Sulfide Solutions In the example cited above, it is essential in that any gold leached in the alkaline sulfide solutions be recovered. As shown in Figure 3, gold is soluble in the alkaline sulfide system. Gold lixiviation is the result of leaching by polysulfides

How to Use Bleach on Gold Ore to Remove Gold Sciencing

How to Use Bleach on Gold Ore to Remove Gold This forms a solution of sodium bisulfate. Add the sodium bisulfate solution to the gold chloride solution. Leave it to settle for four hours. How to Use Bleach on Gold Ore to Remove Gold This forms a solution of sodium bisulfate. Add the sodium bisulfate solution to the gold chloride solution. Leave it to settle for four hours. Observe the brown powder at the bottom of the flask. This is the gold that has precipitated out of the solution.

Gold processing Britannica

Gold processing, preparation of the ore for use in various products. Native gold is the most common mineral of gold, accounting for about 80 percent of the metal in the Earths crust. It occasionally is Gold processing, preparation of the ore for use in various products. Native gold is the most common mineral of gold, accounting for about 80 percent of the metal in the Earths crust. It occasionally is found as nuggets as large as 12 millimetres (0.5 inch) in diameter, and on rare occasions

Gold ores Flotation sodium sulfide yellow flake Barium

Gold ores Flotation sodium sulfide yellow flake. How to sererate the Gold from the Gold ores by usaing sodium sulfide yellow flake. water dissociation of HSand S2as most metal sulfide solubility product is very small so in Metallurgy vulcanization Sodium may be used as a precipitant solution of some impurity metal ions in particular the

gold bearing ore precipitate sodium sulfide

Patent WO2013152424A1 Chloride process for the leaching of Oct 17, 2013 A process for the extraction of gold from a goldbearing ore or leachate liquid, stripping with sodium Patent WO2013152424A1 Chloride process for the leaching of Oct 17, 2013 A process for the extraction of gold from a goldbearing ore or leachate liquid, stripping with sodium thiosulphate and precipitation to recover gold. . 2010, describes extraction of base metal sulphide

CN102989590A Flotation separation method of antimony

A flotation separation method of antimony sulfide gold minerals comprises the steps of performing bulk flotation to obtain antimonygold mixed concentrate firstly and then separating the antimonygold A flotation separation method of antimony sulfide gold minerals comprises the steps of performing bulk flotation to obtain antimonygold mixed concentrate firstly and then separating the antimonygold mixed concentrate to obtain antimony concentrate and gold concentrate, wherein in the bulk flotation, lead nitrate is taken as an activator for the antimony gold minerals, while sodium n

SODIUM SULFIDE (solution)

SAFETY DATA SHEET SODIUM SULFIDE (solution) Revision Date 04/02/2015 P00000021639 Version 1.01 / US ( Z8 ) 6/15 Hygiene measures Ensure that eyewash stations and safety showers are close to the workstation location.

US7785395B2 Method for the recovery of gold from

The free gold that remains undissolved is separated by means of gravity separation methods. After gravity separation, additional comminution is carried out, after which the sulphide minerals are The free gold that remains undissolved is separated by means of gravity separation methods. After gravity separation, additional comminution is carried out, after which the sulphide minerals are decomposed and the goldcontaining solution or residue is routed to the concentrate leaching circuit.

(PDF) RECOVERY OF SILVER FROM CYANIDE LEACH SOLUTIONS

RECOVERY OF SILVER FROM CYANIDE LEACH SOLUTIONS OF A PYRITIC GOLD CONCENTRATE BY SODIUM SULPHIDE PRECIPITATION and ends up in gold bullion. Separation and recovery of silver from cyanide leach

The Determination of Sulfate and Sulfide Sulfur in Rocks

Separation of the sulfate from the sulfide by selective solution of the sulfate in ammoniacal or sodium hydroxide solution of versene (Pfibil and Maricova, 1952; Belcher and others, 1954; Morris, 1959) Separation of the sulfate from the sulfide by selective solution of the sulfate in ammoniacal or sodium hydroxide solution of versene (Pfibil and Maricova, 1952; Belcher and others, 1954; Morris, 1959) failed to dissolve barite completely. Prolonged boiling with a sodium carbonateversene solution did dissolve the barite but also attacked

Gold Precipitation Methods Mineral Processing amp; Metallurgy

The difficulty is that it rarely happens that the amount of gold in a silver ore is small enough to be negligible and as gold is not precipitated by sodium sulphide the method would have to be supplemented by some other process in order to recover the gold. The advantages of sodium sulphide for silver precipitation are its low cost and its

(PDF) SULPHIDE PRECIPITATION OF GOLD AND SILVER FROM

SULPHIDE PRECIPITATION OF GOLD AND SILVER FROM THIOSULPHATE LEACH SOLUTIONS sodium sulphide solution using physical separation methods and

gold separation from sodium sulphide solution

gold separation from sodium sulphide solution; Solvent extraction of gold from polysulfide solution . Separation of gold and copper from the polysulfide solution was readily achieved using 0.5 mol/L N 1923 0.5 mol/L TBP/n octane as the organic phase at pH lt; 8 or pH 11 and the extraction rate of gold .

Separation of Gold metal from Potassium Gold Cyanide salt

Nov 03, 20090183;32;Separation of Gold metal from Potassium Gold Cyanide salt. A discussion started in 2009 but continuing through 2020. November 3, 2009. Q. I have worked in plating Separation of Gold metal from Potassium Gold Cyanide salt. A discussion started in 2009 but continuing through 2020. November 3, 2009. Q. I have worked in plating processes for about two years and I am interested in knowing how to separate the Gold from Potassium Gold Cyanide salt. Gorgolino Moraila Engineer Mexico City, DF, Mexico

Method of processing sulphide gold containing concentrates

The obtained chloride solution is processed with sodium sulphide and calcium chloride with the separation of residues of copper sulphide and calcium sulphate dehydrate. A water solution of The obtained chloride solution is processed with sodium sulphide and calcium chloride with the separation of residues of copper sulphide and calcium sulphate dehydrate. A water solution of alkali metal chloride is evaporated to saturation and directed to oxidationchlorination roasting.

Gold cyanidation

History

Gold cyanidation (also known as the cyanide process or the MacArthurForrest process) is a hydrometallurgical technique for extracting gold from lowgrade ore by converting the gold to a watersoluble coordination complex. It is the most commonly used leaching process for gold extraction.
Production of reagentsfor mineral processing to recover gold, copper, zinc and silver represents approximately 13% of cyanide consumption globally, with the remaining 87% of cyanide used in other i

CHLORIDE HYPOCHLORITE OXIDATION AND LEACHING

Chloridehypochlorite oxidation and leaching of refractory sulfide gold concentrate 63 Fig. 1. The Pourbaix diagram of FeS at [Fe] = 10 4 M, [S] = 10 M and 25 C (the chlorine species regions Chloridehypochlorite oxidation and leaching of refractory sulfide gold concentrate 63 Fig. 1. The Pourbaix diagram of FeS at [Fe] = 10 4 M, [S] = 10 M and 25 C (the chlorine species regions are also marked) (Marsden and House, 2005) Fig. 2.

Sodium sulfide Na2S PubChem

Sodium sulfide, anhydrous is a yellow to brick red crystalline mass or fused solid with an odor of rotten eggs. If exposed to moist air it is liable to spontaneous heating and may cause ignition of nearby Sodium sulfide, anhydrous is a yellow to brick red crystalline mass or fused solid with an odor of rotten eggs. If exposed to moist air it is liable to spontaneous heating and may cause ignition of nearby combustible material.

Characterization and recovery of gold associated with fine

solution of sulphurated potash was substituted (a mixture of gt;98% K 2S with K 2S x, K 2O 3S 2 and K 2SO 4 impurities). The initial sodium sulphide elution trial was conducted using 20 g of carbon solution of sulphurated potash was substituted (a mixture of gt;98% K 2S with K 2S x, K 2O 3S 2 and K 2SO 4 impurities). The initial sodium sulphide elution trial was conducted using 20 g of carbon and 2 L of solution, the ammonium ROWE, J. and MCKNIGHT, S. Characterization and recovery of gold associated with fine, activated carbon.