Efecto Pre Robbing [vnd56zgx7glx]
The preg-robbing potential by the PRP method was 97.9%, with an extraction of 0.77% and an inferred recovery of 36.58% if preg-robbing did not occur. It was obtained under the BRT test a recovery of 0.0%, while for CIL test the extraction was 33.59% what confirms the presence of pregrobbers agents in the gold ore.
Increased Recovery From Preg-Robbing Gold Ore at Penjom Gold
The document discusses increased gold recovery from preg-robbing ore at the Penjom Gold Mine in Malaysia. Traditionally, the mine had very low gold recoveries from CIL processing due to the ore's preg-robbing characteristics. A new gravity and intensive cyanidation circuit was introduced to target gold recovery from cyclone underflow, avoiding fine preg-robbing carbon. …
(PDF) Evaluation of preg-robbing in Goldstrike …
Therefore differences in preg-robbing behaviour of graphitic carbons in the carbonaceous ores can be visually correlated with changes in the shape of the height and widths of the D and G bands [30]. However a more definitive …
Preg-robbing phenomena in the cyanidation of sulphide …
Preg-robbing tests were then conducted on the pyrite and copper concentrates at an initial cyanide concentration of 300 ppm. Under these conditions, preg-robbing was completely eliminated, with no gold adsorbing to the pyrite concentrate or the copper concentrate. This is despite the fact that the free cyanide concentration immediately dropped ...
ALTA Gold 2012 E-Doc
The cause of low gold recoveries can be either through the presence of naturally occurring 'preg robbing' carbonaceous materials or gold physically 'locked' in sulphide minerals. The majority …
Lahontan Reports CN-Soluble Gold up to 91.5% at Calvada, …
Accesswire Lahontan Reports CN-Soluble Gold up to 91.5% at Calvada, 91.0% at York and 86.7% at Slab; Preg Robbing Potential Very Low
Lahontan Reports CN-Soluble Gold up to 91.5% at Calvada, …
Preg Robbing Potential: Only three of 205 samples analyzed exhibited aggressive preg robbing potential (Santa Fe deposit), with one showing moderate preg-robbing (Slab deposit, although this sample maintained high cyanide solubility of fire-assayed gold, which makes the preg-robbing result questionable). Preg-robbing is determined by comparing ...
Characterization of Preg-Robbing Carbonaceous Minerals …
With over 260 tons of gold reserves, the Shuiyindong gold mine is one of the largest Carlin-type gold deposits in China. A particular challenge in the processing of the ore is the presence of carbonaceous compounds, which can cause substantial losses in recoveries via the preg-robbing and adsorption of gold. To investigate the structural properties of the native …
HiTeCC Process
The HiTeCC (high-temperature caustic conditioning) process is an efficient, robust, and cost-efficient alternative for improving gold recovery when treating preg-robbing and double-refractory ores and concentrates. Gold is efficiently desorbed from the carbonaceous matter then recovered onto fresh activated carbon.
An investigation of the carbonaceous component of …
its capacity to preg-rob gold. From this, a simple and robust method has been developed based on the Raman spectra of the sample and carbonaceous material content to predict the preg-robbing capacity of an ore. The potential exists to develop a predictive tool using Raman spectroscopy for characterising the preg-robbing capacity of an ore.
Efecto Pre Robbing [PDF|TXT]
The preg-robbing potential by the PRP method was 97.9%, with an extraction of 0.77% and an inferred recovery of 36.58% if preg-robbing did not occur. It was obtained under the BRT test a recovery of 0.0%, while for CIL test the extraction was 33.59% what confirms the presence of pregrobbers agents in the gold ore.
preg robbing material
Übersetzung im Kontext von „preg robbing material" in Englisch-Deutsch von Reverso Context: Historic reports indicate that a run-of-mine mixture which included preg robbing material was placed on the heap leach which reduced ultimate recoveries.
preg robbing
Traductions en contexte de "preg robbing" en anglais-français avec Reverso Context : The present invention is directed to a precious metal recovery process in which carbonaceous material, such as preg robbing carbon, is floated after sulfide oxidation to separate the carbonaceous material from the precious metal.
PROCEDURE FOR CHARACTERIZATION OF …
PROCEDURE FOR CHARACTERIZATION OF CARBONACEOUS MATTER IN AN ORE SAMPLE WITH ESTIMATION TOWARDS ITS PREG-ROBBING CAPACITY B.R. Hart 1, S.S. Dimov, R. Mermillod-Blondin 2 and J. Fournier 1Surface Science Western, University of Western Ontario, London, On, N6A 5B7 Canada 2 Agnico-Eagle Mines Ltd, Cadillac (QC) J0Y 1C0 …
Solved Briefly explain preg-robbing? | Chegg
The phenomenon of preg-robbing can be described as the removal of the gold cyanide complex (Au(CN)2) from solution by ore constituents such as organic carbon and other minerals. It's crucial to understand an ore's preg-…View the full answer
Dr Grace Ofori-Sarpong
Preg-robbing of gold by carbonaceous materials encountered in gold processing. F Amanya, G Ofori-Sarpong, V Anni, RK Amankwah. Ghana Mining Journal 17 (2), 50-55, 2017. 13: 2017: Evaluation of the performance of local cements with imported class 'G'cement for oil well cementing operations in Ghana.
Evaluation of preg-robbing potential of refractory gold …
The wood chips which had the lowest maturity imposed the lowest degree of preg-robbing, and thus recorded the highest gold recovery after the control. The preg-robbing ability decreased in the order of activated carbon (88-), charcoal (64-86%) and wood chips (10-42%), which individually depended on the amount of carbonaceous material present.
Evaluation of the inhibition process effect "Preg-robbing" for …
Based on the results from the factorial design,an increase in gold extraction performance was observed; obtaining a maximum recovery of29.31% of the gold; in the process it …
LAHONTAN REPORTS CN-SOLUBLE GOLD UP TO 91.5
high cyanide solubility of fire-assayed gold, which makes the preg-robbing result questionable). Preg-robbing is determined by comparing the results of a standard cyanide shake test with that obtained by spiking the leach solution with a known amount of soluble gold providing a semi-quantitative assessment of preg-robbing, typically referred to ...
Sinónimos para Preg-robbing evaluation
Sinónimos de Preg-robbing Evaluation (otras palabras y frases para Preg-robbing Evaluation). Sinónimos para Preg-robbing evaluation. 0 otros terminos para preg-robbing evaluation- palabras y frases con significado similar. Listas. sinónimos. …
CARBON/RESIN TECHNOLOGIES FOR GOLD RECOVERIES for …
effective for carbonaceous ore slurries. process adds leaching agent (cyanide) and carbon together keeping "preg robbing" material like wood from adsorbing the gold. carbon-in-pulp. most efficient for slurries. process reaches the gold first, adds carbon separately. carbon in column.
Preg-Robbing-Material
Übersetzung im Kontext von „Preg-Robbing-Material" in Deutsch-Englisch von Reverso Context: Übersetzung Context Rechtschreibprüfung Synonyme Konjugation Konjugation Documents Wörterbuch Kollaboratives Wörterbuch Grammatik Expressio Reverso Corporate
PREG-ROBBING CARBONACEOUS MATTER: AN …
adsorption phase of processing (Cay, 2014). Preg-robbing capacity can vary significantly with mild preg-robbing ores showing absorption capacities of less than 1. g Au/t ore, while severe preg-robbing ores may have CM with the capacity to preg-rob more than 500 g Au/t ore (Dunne, 2007). Research by a number of
A Historical Review of the Treatment of Preg-Robbing Gold …
The treatment of preg-robbing gold ores has always been a technical challenge in the gold industry. Early solutions included removal of preg-robbing carbonaceous material by flotation, the addition of kerosene to blind'/passivate the surface of the preg-robbing component, and the most effective of all options, roasting the ore. Unfortunately gold ores have become more …
DETERMINACIÓN DE PREG-ROBBING EN MUESTRAS …
El preg-robbing se produce cuando algún constituyente del mineral adsorbe oro de la solución cianurada. Los ... del anión aurocianurado, es el más difundido y se puede revertir en presencia de carbón activado. El irreversible, incluye la precipitación del complejo de oro y requiere de la redisolución del oro para su ...
Traducción de "preg-robbing" ores" en español
Traducciones en contexto de "preg-robbing" ores" en inglés-español de Reverso Context: In recovery operations that are affected by "preg-robbing" ores, it can yield substantially better …
Estudio del proceso de tratamiento de menas refractarias …
El preg-robbing se clasifica en reversible e irreversible [5]. El reversible, ocurre por simple intercambio iónico del anión aurocianurado, es el más difundido y se puede revertir en presencia de carbón activado. El irreversible, incluye la precipitación del complejo de oro y requiere de la redisolución del oro para su recuperación.
preg-robbing | English to Spanish | Chemistry; Chem Sci/Eng
English term or phrase: preg-robbing Text: For ores containing appreciable quantities of "preg-robbing" carbonaceous material such as graphite, for example, it is …
Organic Carbon TOC Pre-Flotation
How "active" the natural carbon is will dictate its preg-robbing capability and its impact on gold recovery. An alternative method involving iodine adsorption is often evaluated and compared to preg-robbing test results for …
Bioleaching Preg Robbing Gold Ore
Preg-robbing potential (% preg rob) is operationally defined as the amount of gold removed by the ore from a 2.0 mg/l gold-cyanide solution at 25% (w/w) pulp density. Those …