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Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (921 download)
Download or read book Uranium Recovery from Wet Process Phosphoric Acid, History and Present Status written by and published by . This book was released on with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. D. Arnold
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (643 download)
Download or read book Uranium Recovery from Wet-process Phosphoric Acid with Octylphenyl Acid Phosphate written by W. D. Arnold and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uranium Recovery from Wet-process Phosphoric Acid with Octylphenyl Acid Phosphate written by and published by . This book was released on 19?? with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry M. Heidt
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.3/5 (91 download)
Download or read book Uranium Recovery written by Henry M. Heidt and published by . This book was released on 1955 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. W. Andresen
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Recovery of Uranium from Superphosphate written by A. W. Andresen and published by . This book was released on 1955 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. D. Arnold
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (511 download)
Download or read book Progress Report on Uranium Recovery from Wet-process Phosphoric Acid with Octylphenyl Acid Phosphate written by W. D. Arnold and published by . This book was released on 1980 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Davis
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Potential radiological impacts of recovery of uranium from wet-process phosphoric acid written by W. Davis and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eugene Warren Nadig
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (357 download)
Download or read book Recovery of Uranium in the Manufacture of Wet Process Phosphoric Acid ... written by Eugene Warren Nadig and published by . This book was released on 1958 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery of Uranium from Wet-process Phosphoric Acid Using the Depa-topo Process written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.3/5 (91 download)
Download or read book Recovery of Uranium from Phosphate Rock written by and published by . This book was released on 1956 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Oak Ridge National Laboratory. Chemical Technology Division
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (611 download)
Download or read book Potential Radiological Impacts of Recovery of Uranium from Wet-process Phosphoric Acid written by Oak Ridge National Laboratory. Chemical Technology Division and published by . This book was released on 1979 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J. Woody
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)
Download or read book Precipitation of Uranium from Anaconda 27°Be Phosphoric Acid with Potassium Or Calcium Hydroxides written by Robert J. Woody and published by . This book was released on 1956 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uranium Recovery from Wet-process Phosphoric Acid with Octylphenyl Acid Phosphate. Progress Report written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies were continued of a process for recovering uranium from wet-process phosphoric acid with octylphenyl acid phosphate (OPAP), a mixture of mono- and dioctylphenyl phosphoric acids. The mixture contained at least nine impurities, the principal one being octyl phenol, and also material that readily hydrolyzed to octyl phenol and orthophosphoric acid. The combination of mono- and dioctylphenyl phosphoric acids was the principal uranium extractant, but some of the impurities also extracted uranium. Hydrolysis of the extractant had little effect on uranium extraction, as did the presence of moderate concentrations of octyl phenol and trioctylphenyl phosphate. Diluent choice among refined kerosenes, naphthenic mixtures, and paraffinic hydrocarbons also had little effect on uranium extraction, but extraction was much lower when an aromatic diluent was used. Purified OPAP fractions were sparingly soluble in aliphatic hydrocarbon diluents. The solubility was increased by the presence of impurities such as octyl phenol, and by the addition of water or an acidic solution to the extractant-diluent mixture. In continuous stability tests, extractant loss by distribution to the aqueous phase was much less to wet-process phosphoric acid than to reagent grade acid. Uranium recovery from wet-process acid decreased steadily because of the combined effects of extractant poisoning and precipitation of the extractant as a complex with ferric iron. Unaccountable losses of organic phase volume occurred in the continuous tests. While attempts to recover the lost organic phase were unsuccessful, the test results indicate it was not lost by entrainment or dissolution in the phosphoric acid solutions. 21 figures, 8 tables.
Author : A. P. Kouloheris
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (164 download)
Download or read book Uranium Recovery from Phosphoric Acid written by A. P. Kouloheris and published by . This book was released on 1979 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Studies of Uranium Recovery from Wet-process Phosphoric Acid with Octylphenyl Acid Phosphate written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Commercial OPAP is a complex mixture that contains at least 11 components. Octyl phenol is the principal impurity. Commercial OPAP contains readily-hydrolyzable material. The concentrations of octyl phenol and an unidentified impurity increase in the hydrolyzed product. Uranium extraction power is decreased slightly by hydrolysis of the reagent. Four major problems were encountered in continuous stability tests: (1) Microemulsion or micelle formation--loss of organic phase into phosphoric acid. We do not have a solution to this problem at this time. It could involve alteration of the organic, e.g., adding a modifier, changing the reagent structure, or changing the diluent. (2) Reagent poisoning--reduction of uranium extraction and interference with organic titrations by material extracted from the acid. Additional work is needed to identify the poisoning material or materials. It can then be removed if it originates in the phosphate rock, or avoided if it originates in chemicals added during processing. (3) Crystallization with iron--loss of both major components of the reagent as a complex with ferric iron. We believe this problem can be controlled by controlling the ferric iron concentration in the phosphoric acid. (4) MOPPA distribution loss--a selective loss to the aqueous phase. We believe this can be minimized by controlling the iron concentration of the phosphoric acid. The iron concentration will need to be kept low enough to avoid reagent crystallization and high enough to avoid MOPPA distribution loss. 15 figs.
Author : R. E. Berning
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.3/5 (91 download)
Download or read book Recovery of By-product Uranium by the Solvent Extraction Method written by R. E. Berning and published by . This book was released on 1953 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: A solvent extraction process for the recovery of Uranium from Phosphoric Acid is described. The process steps which include reduction, extraction, unloading and acid clean-up are presented in detail. An estimated process cost is also presented.
Author : Sebastian Huwyler
Publisher :
ISBN 13 : 9783856770181
Total Pages : 58 pages
Book Rating : 4.7/5 (71 download)
Download or read book Uranium Recovery from Phosphates and Phosphoric Acid written by Sebastian Huwyler and published by . This book was released on 1985 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
