ferric chloride concentrates

Here, ferric chloride and nitrate aqueous solutions are studied using polarized Raman spectroscopy as a function of concentration and referenced to their respective sodium salt or mineral …

Building on our previous work 6, 7 on the mechanically activated leaching of concentrates using concentrated ferric chloride solution, we attempted to combine grinding and leaching operations into a single step using the source ore as the grinding media and a concentrated ferric chloride solution as the lixiviant. 2. Experimental …

Research and development work on a ferric chloride leach process for lead-silver containing concentrates required mapping of the PbCl 2 solubility as a function of temperature and various co-electrolyte concentrations. A pycnometric sampling method was used to determine the solubility of PbCl 2 and the density of the corresponding PbCl 2 …

Optimum precipitating concentrations of ethanol and ferric chloride in PFJ were 4 M (23.1% v/v) and 20 mM (2% w/v), resulting in yield of 69% and 86.5% of total protein, respectively. Contents of total glycoalkaloids and potassium in both protein concentrates were significantly lower (P < 0.05) as compared with contents in PFJ dry …

It has been shown in a number of studies that one-stage ferric leaching of various raw materials (slags, sulfide concentrates) using solutions containing ferric sulfate makes it possible to effectively extract non-ferrous metals into solution [66,67,68,69]. However, the problem is obtaining solutions of ferric ions in amounts sufficient for the ...

In this paper, the effect of the cupric and chloride ions concentrations on copper dissolution from chalcopyrite concentrate was studied in acidified media. Variables included three different concentrations of Cu2+ (0.5, 1.5, and 2.5 g L−1), four different concentrations of Cl− (0, 5, 7, and 10 g L−1), two different pH values of 1 and 2, and a …

Significant deposits of complex fine-grained base metal sulphide ores occur in many parts of the world. To obtain high metal recoveries from such ores requires the production of bulk rather than selective concentrates. CANMET has developed a Ferric Chloride Leach (FCL) process to treat these relatively low grade bulk concentrates and to obtain very …

1. Introduction. Ferric chloride and/or cupric chloride leaching processes have been extensively studied to treat sulfide concentrates of copper, lead and zinc (Peters, 1977, Dutrizac, 1990, Dutrizac, 1992, O'Malley and Liddell, 1987).Chloride leaching has several advantages for hydrometallurgical processes, with respect to sulfate …

Dr. Masrath Begum

To create a liter of acid, pour 500 ml of distilled water into the container, followed by 500 ml of the concentrated ferric chloride etching solution. Pour the acid slowly to avoid splashing, which can cause reactions with nearby surfaces and release toxic fumes. Stir the mix until the solution dissolves completely.

ARBITER N, MCNULTY T. Ammonia leaching of copper sulfide concentrates [C]// Copper 99-Proceedings of the Fourth International Conference Phoenix Arizona, USA: CIM, TMS, 1999: 197–212. ... MAURICE D, HAWK J A. Ferric chloride leaching of mechanically activated chalcopyrite [J]. Hydrometallurgy, 1998, 49: 103–123.

Ferric Chloride | FeCl3 or Cl3Fe | CID 24380 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and …

The increase in ferric chloride concentration (beyond 0,15 M) or increase in temperature affects the preferential leaching. ... Kinetics of dissolution of sulphide minerals in ferric chloride solution and application to complex sulphide concentrates. Trans. IMM (Sect. C), 97: 159-162. Shon, H.Y. and Wadsworth, M.E., 1979. Rate Processes of ...

The sulfide ores or concentrates are processed under conditions conductive to the formation of As 4 O 6 which is volatilized and then condenses as solid As 2 O 3 when the gas temperature drops. ... Ferric chloride leaching offers a selective method for extraction of uranium and elimination of arsenic as ferric arsenate from the leach liquor.

Contact us. Back to top. Univar Solutions is one of the largest suppliers of ferric chloride in the United States with more than 120 locations throughout the nation. Our offering …

The degree of surface passivation: ferric sulfate > ferric chloride > ferric nitrate ... 2010), and is a desired route for metal extraction, especially for low grade and mineralogically complex concentrates (Aydogan, 2006; Aydogan et al., 2005; Jena and Brocchi, 1992). ...

using a Ferric Chloride Leach by F. P. Haver and M. Wong Smelting of copper concentrates results in the dis­ charge of millions of tons SO, to the atmosphere each year. Because of increasing concern with air pol­ lution, the Bureau of Mines has developed a hydro­ metallurgical procedure to obtain elemental sulfur

Brine disposal is a serious challenge of arsenic (V) removal from drinking water using ion-exchange (IX). Although arsenic removal with ferric chloride (FeCl 3) from drinking waters is well documented, the application of FeCl 3 to remove arsenic (V) from brines has not been thoroughly investigated. In contrast to drinking water, IX brines …

Ferric chloride is a dark colour crystal with the oxidation state of iron being +3. It is also called Iron (III) chloride or Molysite. It is an iron coordination entity which functions as an astringent and Lewis acid. The chemical formula of Ferric Chloride is FeCl3. Molysite solution is colourless to light brown and has a faint hydrochloric ...

The CANMET ferric chloride leach process [ 100 ] achieves > 99% Zn and Pb extraction, as well as 97% Cu and 96% Ag extraction, from complex pyritic bulk concentrates. As shown in Fig. 9, the process consists of a two-stage FeCl3 leach in FeCla-NaCl media with interstage thickening.

The dissolution of chalcopyrite in ferric sulphate and ferric chloride media. Metall. Trans. (1981) Flett, D.S., Melling, J., Derry, R., 1983. Chloride-metallurgy for the treatment of complex sulphide ores. ... which prevails in the chemical concentration process of polymetallic concentrates, in the S 2 O 3 2--Ca(OH) 2 system as well as a ...

CHLORIDE LEACHING Only chlorides of metals in a higher valence state, such as ferric or cupric chloride, will leach metals from their sulfi des because oxidation is necessary. Of the numerous chloride routes, ferric chloride (FeCl 3) leaching of chalcopyrite concentrates, which was initiated by the U.S. Bureau of Mines' Reno Metallurgy

The study investigates the effectiveness of Ferric Chloride as a coagulant for removing pollutants from domestic wastewater in El Jadida, Morocco. It analyzes various parameters, including Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), pH levels, and heavy metals. The study combines …

Ferric chloride reaches higher reaction rates, but this leaching agent increases industrial costs due to equipment corrosion. ... Refractory behaviour of two sphalerite concentrates to dissolution in ferric sulphate solutions. Hydrometallurgy, 19 (2) (1987), pp. 253-258. View PDF View article View in Scopus Google Scholar.

Input a temperature and density within the range of the table to calculate for concentration or input concentration to calculate for density. The table below gives the density (kg/L) and the corresponding concentration (% weight) of Ferric Chloride (FeCl 3) solutions in …

Ferric chloride has the unusual distinction of being one of the purest and most concentrated forms of iron commercially available. However, what is truly unusual …

Copper extraction efficiencies in excess of 90% were attained in the weak acid leach while 90% silver extraction was achieved in the ferric chloride leach, along with copper and lead extractions as high as 93% and 99% respectively. The two-stage leaching process resulted in overall extraction efficiencies of 99% copper and 90% silver. Keywords

Here molybdenum concentrates are slurried with hot ferric chloride leach solution to dissolve the copper and lead contaminants present. The primary function of the filtration and thickening circuits is to recover spent ferric chloride leach solution from the leached moly concentrates. Since approximately 2.5 percent of the ferric chloride in ...

Ferric Chloride Regeneration. ... concentrate would reduce the cost of flotation as well as save some metal values lost during the production of cleaner concentrates. If the value of the sulfur recovered from the leach residue is low, its recovery would be uneconomical. Under this condition the sulfur could be discarded with the leach residue.