gold solvent dibutyl carbitol
Processing of high purity gold from scraps using diethylene glycol di …
DOI: 10.1016/J.HYDROMET.2008.06.006 Corpus ID: 95312827; Processing of high purity gold from scraps using diethylene glycol di-N-butyl ether (dibutyl carbitol) @article{Jung2009ProcessingOH, title={Processing of high purity gold from scraps using diethylene glycol di-N-butyl ether (dibutyl carbitol)}, author={Byoung Hi Jung and Yi …
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On the Extraction of Gold(III) with Dibutyl Carbitol
4 with diethylene glycol dibutyl ether (dibutyl carbitol) was studied in the gold(III) concentration range 10 –6 –1.5 mol/L at c HCl = 1 mol/L and T = 25°C, distribution ratios were
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Diethylene glycol dibutyl ether, 99+%
Alfa Aesar By Thermo Fisher Scientific | 112-73-2: Extraction of precious metalsDiethylene glycol dibutyl ether is used as a solvent in Grignard reactions. It is also used as solvents in gold refining, decorative inks for ceramics and digital inks. It finds application in electrochemistry, gas absorption, extractant and high boiling reaction medium. It is also …
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Solvent Extraction of Gold(III) with Diethyl Carbonate
alternative to methyl isobutyl ketone and dibutyl carbitol for the recovery of gold from copper-rich sources, such as anode slimes, by solvent extraction from chloride solutions.
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Dibutyl carbitol
The industrial practice of utilizing dibutyl carbitol in solvent extraction of gold. Kuangye Gongcheng 1995, 15, 37 10. ... Natural successors to diethyl ether as an extractant were various ethers, polyethers, and alcohols such as dibutyl carbitol, known as "triether," dibutoxytetraethylene glycol, ...
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Processing of high purity gold from scraps using diethylene glycol di
An improved process was developed to produce gold with purity > 99.9998% (> 5 N) from gold scraps using dibutyl carbitol (DBC) as an extractant.The extraction of gold into DBC was optimised, which showed that gold could be effectively loaded into DBC up to 190 g/L Au.
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A Comparative Study on the Extraction of Au(III) Using …
A Comparative Study on the Extraction of Au(III) Using Cyclopentyl Methyl Ether, Dibutyl Carbitol, and Methyl Isobutyl Ketone in Acidic Chloride Media Tatsuya Oshima a Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai Nishi, Miyazaki, Japan Correspondence [email protected] …
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A Comparative Study on the Extraction of Au(III) Using …
Extraction of HAuCl4 with diethylene glycol dibutyl ether (dibutyl carbitol) was studied in the gold(III) concentration range 10−6−1.5 mol/L at c HCl = 1 mol/L and T = 25°C, distribution ...
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On the extraction of gold(III) with dibutyl carbitol
Extraction of HAuCl4 with diethylene glycol dibutyl ether (dibutyl carbitol) was studied in the gold(III) concentration range 10−6−1.5 mol/L at c HCl = 1 mol/L and T = 25°C, distribution ratios were determined. Experiments were made at other c HCl. A unified extraction isotherm was obtained with the use of activity coefficients of HAuCl4. The …
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Gold recovery from waste printed circuit boards of mobile …
The gold ions contained in the leachate previously produced by the leaching processes were not satisfactorily extracted by using organic solvents including di-(2-ethylhexyl)phosphoric acid, tributyl phosphate, dibutyl carbitol and ctylamine, so the leachate was decided to bypass solvent extraction and directly apply to the oxidative ...
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Application of cyclodextrins as second-sphere coordination …
Among the twelve different additives examined, dibutyl carbitol (DBC) results in maximum yields of gold recovery (close to ), even in volume fractions as …
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Solvent extraction of gold using ionic liquid based process
Ionic liquids (ILs) are the potential alternative for gold extraction because they possess several desirable properties, such as a the ability to expanse temperature process up to 300°C, good solvent properties for a wide range of metal ions, high selectivity, low vapor pressures, stability up to 200°C, easy preparation, environmentally ...
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Application of solvent extraction to the refining of precious …
It has long been known that gold(III) may be readily extracted into basic organic solvents from aqueous solutions of hydrochloric acid and this fact has been widely put to use in analytical chemistry for separating the element from many others.4"7 For the present work "dibutyl carbitol" (diethyleneglycol dibutyl ether, butex) was selected as ...
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Some additional aspects of gold(III) extraction by dibutyl carbitol
From changes of volumes of the aqueous and organic phases it was found that the extraction of HAuCl 4 from hydrochloric medium by dibutyl carbitol (DBC) involves co-extraction of about 6 mol of water per one mole of gold(III). The changes of phase volumes are equal to ΔV org = 0.17 n Au, ΔV aq = − 0.20 n Au, where n Au is the …
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On the extraction of gold(III) with dibutyl carbitol
Extraction of HAuCl 4 with diethylene glycol dibutyl ether (dibutyl carbitol) was studied in the gold(III) concentration range 10 −6 −1.5 mol/L at c HCl = 1 mol/L and …
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On the extraction of gold(III) with dibutyl carbitol
Extraction of HAuCl4 with diethylene glycol dibutyl ether (dibutyl carbitol) was studied in the gold(III) concentration range 10−6−1.5 mol/L at c HCl = 1 mol/L and T = 25°C, distribution ...
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Application of solvent extraction to the refining of precious …
A procedure for the separation of gold from precious metal concentrates, based on its extraction by "dibutyl carbitol", is described. Spectrographic analyses indicate that the resultant metal is of high purity and tests have shown that recovery of the element is essentially quantitative. It appears …
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Solvent Extraction of Gold(III) with Diethyl Carbonate
Diethyl carbonate (DEC) was evaluated as a green, renewable alternative to methyl isobutyl ketone and dibutyl carbitol for the recovery of gold from copper-rich …
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Some additional aspects of gold(III) extraction by dibutyl …
From changes of volumes of the aqueous and organic phases it was found that the extraction of HAuCl 4 from hydrochloric medium by dibutyl carbitol (DBC) …
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CARBITOL™ Solvent, Low Gravity
CARBITOL™ Solvent, Low Gravity. Solvent used to facilitate penetration into fibers and to promote the production of intense, bright shades; it features a high boiling point and low vapor pressure. Also an important solvent in nongrain-raising wood stains and serves as a component of industrial cleaners. Textile and dyeing processes ...
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The chemistry of gold solvent extraction from alkaline cyanide solution
DBC = dibutyl carbitol. 100 ~ I I Z 75 g u~ 50 k- z 25 K2SO4 Na2SO4 [ I 0 0.5 1.0 1.5 IONIC STRENGTH, M Fig. 3. The effect of ionic strength on the extraction of gold (1000 ppm) from aurocyanide solution by TBP, pH 8_+0.5. bitol (DBC). ... pH 9.5-11. GOLD SOLVENT EXTRACTION FROM ALKALINE CYANIDE SOLUTION 3 7 pared to …
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An Innovative Hydrometallurgical Process for Recovery of …
Step 1: Gold Recovery. In commercial practice, poor organic/aqueous separation in the gold solvent extraction circuit often results in increased gold reporting to the crude selenium. This reduces the saleability of selenium to the customer because residual dibutyl carbitol (organic used in solvent extraction) produces an obnoxious odor.
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Investigating the mechanism of Au(III) transport using a …
In this article, firstly, the separation and transfer of Au(III) from gold chloride solution was investigated using a polymer inclusion membrane (PIM) system containing dibutyl carbitol (DBC) as carrier molecules, dioctyl phthalate (DOP), bis(2-ethyl hexyl) adipate (dioctyl adipate) (DOA) and tris (2-ethyl hexyl) phosphate (T2EHP) as …
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Butyl Carbitol
Butyl CARBITOL™ solvent is valued for its excellent solvency, chemical stability, and biodegradability. It is an exempt VOC under specific environmental criteria and is compatible with water and various organic solvents. This glycol ether is beneficial in , industrial, and agricultural applications, including as a solvent in cleaning ...
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Development of solvents for Au(III) extraction in …
Dibutyl carbitol (diethylene glycol dibutyl ether; DBC) is the most popular extractant for Au(III) owing to its high extractability and high selectivity (Barnes and Edwards, 1982; Mironov, 2013; Jung et al., 2009; Rydberg et al., 2004; Marsden and House, 2006); however, DBC is soluble in water (3.0 g/dm 3), which results in high …
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Recovery of metals from chloride leach solutions of anode …
The extraction and recovery of gold from copper electrorefining slimes by leaching and solvent extraction using dibutyl carbitol (DBC) has been practiced for several decades.
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Extraction of Au(III) using aromatic ethers via ion solvation …
The ethereal compound dibutyl carbitol (bis(2-butoxyethyl)ether; DBC) is a common solvent used for the separation of gold during the refining of precious metals [9], [10]. DBC extracts Au(III) selectively over platinum-group metals and base metals.
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U.K. Dibutyl Carbitol | Gold Refining & Metal Extraction Forum
Dear All I know it is a long shot but just thought I would ask if any one in the U.K. might Know where I could order some Dibutyl Carbitol. I only need 4-5L and my regular suppliers do not carry it. Having only just read about solvent extraction of Gold Chloride I would now like to experiment with it to see if I can improve my end product.
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Application of cyclodextrins as second-sphere coordination …
Among the twelve different additives examined, dibutyl carbitol (DBC) results in maximum yields of gold recovery (close to ), even in volume fractions as low as 0.1 % (v:v).
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Application of solvent extraction to the refining of precious …
Dibutyl carbitol, or more correctly, diethylene glycol dibutyl ether (also known as butex and butyl diglyme) was the first gold-selective solvent-extraction system to be commercialized by Inco at the Acton Refinery (Morris …
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