Download or read book Solvent Extraction Recovery of Thorium and Yttrium from Siliceous Colorado Ores written by Samuel Ralph Borrowman and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorium and yttrium oxides were recovered from siliceous ores of the Powderhorn, Colo., area. Processing comprised (1) acid curing and subsequent (2) acid baking, (3) leaching, and (4) solvent extraction of thorium, using a primary alkylamine, and yttrium, using di-2-ethylhexy1 phosphoric acid. About 95 pct of the contained thorium and yttrium was recovered from ore containing 1.2 pct ThO2 and 0.5 pct Y2O3. The thoria product was 99 pct ThO2 ; the yttria product was 77 pct Y2O3. A 150-to-1 concentration ratio was effected on the latter, but some contaminating lanthanon-group oxides remained.
Download or read book Metallurgical Studies of Rhodonite Ores Silverton District Colorado In Three Parts written by Dale Z. Hobbs and published by . This book was released on 1964 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies were made to determine the effect of the shape of a pneumatic-rock-drill exhaust muffler on its efficiency, and the origin and reduction of exit noise from the mufflers. The report describes the investigation of rock-drill noise abatement.
Download or read book Report of Investigations written by and published by . This book was released on 1964 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation of Thick Coatings of Tungsten written by Frank X. McCawley and published by . This book was released on 1964 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minerals Yearbook written by and published by . This book was released on 1964 with total page 1270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report to the President by the Director of Defense Mobilization written by United States. Office of Defense Mobilization and published by . This book was released on 1961 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stockpile Report to the Congress written by United States. Office of Emergency Planning and published by . This book was released on 1948 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stockpile Report to the Congress written by and published by . This book was released on 1961 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by United States. Bureau of Mines and published by . This book was released on 1981 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral Facts and Problems written by United States. Bureau of Mines and published by . This book was released on 1965 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1964 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1966 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Publications written by United States. Bureau of Mines and published by . This book was released on 1960 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reports Received by Division of Technical Information Extension written by U.S. Atomic Energy Commission. Division of Technical Information and published by . This book was released on with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Extractive Metallurgy Hydrometallurgy written by Fathi Habashi and published by . This book was released on 1969 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
