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ABSTRACT Recently, a commercially available ethereal compound, cyclopentyl methyl ether (CPME) was found to act as an extractant for Au(III) in acidic chloride media. In this study, the extraction behavior of Au(III) using CPME was compared with commercial extractants dibutyl carbitol (DBC) and methyl isobutyl ketone (MIBK). …
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In this research, the potency of uranium extraction by dibutyl carbitol solvent has been investigated. The cheapness of this solvent is advantageous. Response surface methodology was applied to design the experiments and analyze the results to evaluate the effects of four effective variables, i.e., nitric acid concentration, dibutyl carbitol …
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including, with the use of dibutyl carbitol (DBC, diethylene glycol dibutyl ether, butyl diglyme, Butex, C 4 H 9 –O–C 2 H 4 –O–C 2 H 4 –O–C 4 H 9) [1–5]. The method consists in the extraction of gold(III) and cer tain admixtures from hydrochloric acid media, wash ing of extract with hydrochloric acid, and reduction of
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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 …
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Benefits. 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 utilize this product to ...
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hydrochloric medium by dibutyl carbitol (DBC) involves co-extraction of about 6 moles of water per one mole of gold(III). The changes of phase volumes are equal to ∆ V org = 0.17 n Au, ∆ V aq ...
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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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U.K. Dibutyl Carbitol. Thread starter justinhcase; Start date Sep 4, 2014; Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. justinhcase Well-known member Supporting Member. Joined Feb 12, 2014 Messages 1,776
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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 …
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Dibutyl carbitol. Fulminating gold. 1. IntroductionGold has mostly been extracted from its ores by cyanidation in the Carbon-In-Pulp process. The gold bullion produced from this process generally has to be further refined in mint shops to achieve 99.99% (4 N) purity (Marsden and House, 1992). Conversely, gold from scraps is mostly …
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Helpful links in machine-readable formats. Abstract: "This is a compilation of the material in several reports on the extraction of uranium from aqueous solutions with dibutyl carbitol. Data is presented concerning the optimum conditions for the extraction of the uranium and elimination of impurities."
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Recommendation for butyl carbitol formal usage levels up to: not for fragrance use. Recommendation for butyl carbitol formal flavor usage levels up to: ... dibutyl carbitol formal : dibutylcarbitol formal : dibutylcarbitolformal: 5,8,11,13,16,19-hexaoxatricosane :
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Contact information. MIDSIS-TROCS MARITIME HOUSE LASCARIS WHARF VALLETTA VLT 1921 MALTA Tel: +356 21 337 296/7/8 Fax: +356 21 339 951 Web: midsis.rempec
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Dibutyl carbitol (bis(2-butoxyethyl)ether; DBC), an ethereal compound, is currently the most popular extractant for Au(III) from hydrochloric acid media (Jung et al., 2009): Au(III) is selectively extracted from many precious- and base-metal cations. Typically, more than 99% gold extraction can be achieved and Au(III) can be …
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Synonym:BUCB, Dowanol DB, Ektasolve DB, Jeffersol DB, Poly-Solv DB; Butyl carbitol; DiethyleneGlycolMonobutylEther;Diethyleneglycolnbutylether;Diglycolmonobutylether; Butyldioxitol;GlycoletherDB;O-Butyldiethyleneglycol ChemicalName:2-(2-butoxyethoxy)ethanol ChemicalFormula:C4-H9-O-(CH2)2-O-(CH2)2-O-H …
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Historically, both the BUTEX (dibutyl carbitol-based) and PUREX (tributyl phosphate-based) processes have been used for uranium recovery and purification. Currently, BUTEX- and PUREX-type extraction processes are being used in series for recovery of isotopically enriched uranium at the Oak Ridge Y-12 Plant. The use of two solvents is predicated ...
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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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Dibutyl carbitol (DBC) and methyl isobutyl ketone (MIBK) are commercially available for the extraction of Au(III) from acidic chloride media through ion solvation. These extractants show high Au(III) extractability, but their physical properties have drawbacks in extraction processes. In this study, Au(III) extraction using a series of ...
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including, with the use of dibutyl carbitol (DBC, diethylene glycol dibutyl ether, butyl diglyme, Butex, C 4 H 9 –O–C 2 H 4 –O–C 2 H 4 –O–C 4 H 9) [1–5]. The
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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...
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Received October 31, 2011. 4 Abstract—Extraction of HAuCl with diethylene glycol dibutyl ether (dibutyl carbitol) was studied in the gold(III) concentration range 10–6–1.5 mol/L at cHCl = 1 ...
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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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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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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 cHCl = 1 mol/L and T = 25°C, distribution ratios were determined. Experiments were made at other cHCl. A unified extraction isotherm was obtained with the use of activity coefficients of HAuCl4. The …
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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 solvent loss …
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در این پژوهش استخراج طلا از محلول لیچ کلریدی لجن مس آندی سرچشمه با حلال دی بوتیل کربیتول (DBC) و در یک دستگاه میکسر ستلر آزمایشگاهی انجام شد و تأثیر پارامترهای مختلفی مانند دور همزن، دبی فاز آبی ...
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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 Δ Vorg = 0.17 nAu, Δ Vaq = − 0.20 nAu, where nAu is the number …
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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. Au(III) can be extracted from a concentrated gold chloride solution with an associated high ...
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Name:Diethylene Glycol Di-n-butyl,CAS:112-73-2.Use:Used as a diluent for polyvinyl chloride latex, but also for the extraction of fatty acids from dilute solution, separation and purification of alkyl phosphoric acid, uranium extraction, pharmaceutical industry .Buy Di-n-butyl Carbitol.Molecular Fomula:C12H26O3,Molar …
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بررسی تأثیر پارامترهای سینتیکی بر استخراج طلا با حلال دی بوتیل کربیتول (dbc) در میکسر- ستلر عنوان انگلیسی The kinetics study of gold extraction by Di Butyl Carbitol (DBC) in Mixer-settler extractor
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