Download or read book Extraction and Separation of Platinum Metals by Polyurethane Foam microform written by Sargon John Shimshon Al-Bazi and published by . This book was released on 1983 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extraction and Separation of Platinum Metals by Polyurethane Foam written by Sargon John Shimshon Al-Bazi and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extraction and Separation of Platinum Metals by Polyurethane Foam written by Sargon John Al Bazi and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Separation and Purification of the Platinum Metals by Liquid liquid Extraction written by Peter Alexander Lewis and published by . This book was released on 1975 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Refining of the Platinum group Metals written by R. I. Edwards and published by . This book was released on 1975 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Separation of Platinum Group Metals and Gold written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The invention relates to the separation of palladium and/or gold from other PGM's and base metals and/or from each other. With the metals in hydrochloric acid medium it was found that a solvent extractant, di-n-octyl sulphide, extracted only Pd and Au and that whilst the Au was extracted rapidly into the organic phase, the Pd was extracted very slowly. Other effective solvents were found all having functional groups of the formulae R1-S-R where R1 and R may be the same or different each having a carbon atom linked directly to the sulphur atom, R and R1 are independent of each other, are amyl alkyl or aralkyl groups with not more than 20 carbon atoms in each case. The active extractant is carried in an organic diluent (solvesso). Stripping of the gold and/or palladium is done with an acidic solution of thio-urea or palladium alone may be stripped with aqueous ammonia and the gold subsequently stripped with a basic solution of sodium sulphate. Typical solvents used are di-n-decyl sulphide, di-n-hexyl sulphide, methyl-n-hexyl sulphide, tertiary butyl - decyl - sulphide. Iron may be removed from the loaded organic phase by washing with 0,1M HCl. Very high purity Pd can be obtained by stripping loaded organic with concentrated aqueous ammonia. Some of the solvents extract the gold rapidly and can be used as preferential gold extractants. In this case it is critical to effect the organic aqueous separation before extraction of the Pd and back extraction of gold commences.
Download or read book Countercurrent Extraction Separation of Various Platinum Group Metals written by Eugene Yuchuan Lau and published by . This book was released on 1961 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Polyurethane Foams for the Extraction of Platinum II from Hydrochloric Acid Solutions in the Presence of Tin II Chloride written by Karim Francis Gavin Brackenbury and published by . This book was released on 1984 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The use of polyurethane foams for the extraction of platinum II from hydrochloric acid solutions in the presence of tin II chloride written by Karim Francis Gavin Brackenbury and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Process for the Separation and Purification of Platinum Group Metals and Gold written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The invention provides a process for the separation and purification of platinum, palladium and/or gold by means of solvent extraction. A high molecular weight tertiary or quaternary amine solvent is used to extract the anionic chloro complexes from the aqueous feed. Any secondary PGM's in the aqueous feed are hydrolysed to complexes which are neutral or cationic. This conditioning is done by boiling 3 to 4 hours below pH 3. The loaded solvent is scrubbed with acid. Palladium and/or gold is stripped with thiourea solution and perchlorite solution is used to strip the platinum but thiocyanate can also be used. Alternatively dilute perchlorite can be used to strip platinum, strong perchlorite for palladium and the gold is then stripped with sodium carbonate solution. Further claims specified the use of resins instead of solvents but no resin details specified. Solvent used most was 5% alamine 336 in solves 150. Other claims included precipitating palladium in strip solution with ethylene and platinum with hydrogen.
Download or read book Separation of Platinum Metals by Ion Exchange written by Alice F. S. Fischel and published by . This book was released on 1953 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extraction and Refining of the Platinum Group Metals written by and published by . This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Separation of Platinum and Palladium by Foam Chromatography written by D. Conrad Gregoire and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solvent Extraction of the Platinum Metals written by Ellen Davies and published by . This book was released on 1964 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extraction Studies in the Platinum Metal Group written by William Lambert Senn and published by . This book was released on 1958 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Separation of Platinum Palladium Rhodium and Iridium by Solvent Extraction and Ion Exchange written by Audrey Sybil Lee and published by . This book was released on 1967 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
