SCIENTIFIC-METALS, ZIRCONIUM, ZIRCONIUM MINERALS

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Collection: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP80-00809A000700210138-1
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RIPPUB
Original Classification: 
R
Document Page Count: 
2
Document Creation Date: 
December 14, 2016
Document Release Date: 
January 10, 2002
Sequence Number: 
138
Case Number: 
Publication Date: 
March 13, 1952
Content Type: 
REPORT
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PDF icon CIA-RDP80-00809A000700210138-1.pdf121.19 KB
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Approved For Release 2002/08/06 : CIA-RDP80-00809A000700210138-1 MAR 1952 51-4C CLASSIFICATIQ, J -:ATIeNJ CENTRAL INTELLIGENCE AGENCY INFORMATION FROM FOREIGN DOCUMENTS OR RADIO. BROADCASTS COUNTRY SUBJECT HOW Scientific - Metals, zirconium, 'zirconium miner .e PUBLISHED Pamphlet WHERE PUBLISHED Moacow/%eningrad DATE PUBLISHED 1947 LANGUAGE REPORT NO CD NO. DATE OF INFORMATION 1947 DATE DIST. !3 Mar 1952 SUPPLEMENT TO REPORT NO. toll DOCUNINT CONTAIN[ I11r0N11.TION ALICTIND 1..[ NATIONAL p[.INSI 01 To[ UNITED [TAT[/, NITN IN To"""I'D 01 TITLE 11. [[CTI...... AND TSO. 0, To[ U.S. Cool. AS A.t.010. ITS TN0N........ ON .[Y[. LATION 01 ITS CONTt.75 TO ON S0C[I.T AT AN UNAUTHDA1210 PERSON If THIS IS UNEVALUATED INFORMATION Trebovan ya aromyshlennosti k kacheatvu mineral'nogo ayr'ya Vvnuek 45, Tai,, Vseaoyuznyy Nauchno-Iealedovatel'akiy Inetitut Mineral'nogo Syr yn. USSR ZIRCONIUM RESOURCES P. G. Verkholantsev Na,:ural compounds of.zirconium may be divided into three groupat nn 1. Zirconium dioxide, Zr02,'of'various modifigations --ba4d4cyi?Cc. of zirconium dioxide..vith e4lica,.ZrSJ04 -- zircon and its varieties. tantallumComplex and other zirconium elements -- et~i~tea,,i catapleiit~,e. columbium, Only two zirconium-containing minerals, baddeleyite and zircon, now have industrial significance. Eudciolite is not used in industry because of a?low content of ZrO2 and because the presence of iron a1,: titanium. hampers the tech.. nological prociee of separating zirconium dioxide. Badleleyite is the beat zirconium-containing raw material, the richest in zirconium and the simplest in chemical composition. Therefore, search for deposits of this mineral must be encouraged by all means. Rocks containing zircon an an accessory mineral, such as granites, diorites, and syenitee, are widely distributed in the earth's cruet. Professor P. Pyatnitrkiy prenenta the following data in his book (Zirconium and the Laws of Its Distribution in Minerals and Rocks Kharkov, 1939): Thirteen out of 5 analyses of granites showed a,oontent of zirconium oxide higher than 0.10%, and ai.% of these 13 rnalyeea gave results from 0.42 to 8.10%. In syenitlc rocks, might out of 42 analyses showed higher than a 0.10% content of zirconium oxide, including three analyses with figures from 0.38 to 1-30%- In rocks belonging to O LL 25X1A 25X1A ILLEGIB Approved For Release 2002/08/06 : CIA-RDP80-00809A000700210138-1 Approved For Release 2002/08/06 : CIA-RDP80-00809A000700210138-1 25X1A II I EGIR nephelinic and leucitic syenites, eight out of 34 analyses revealed concen- tration of zirconium oxide from 1.57 to 4.396. Here the zirconium-containing mineral is represented in most cases by eudeiolite but in certain cases by zircon as, for example, in deposits near Mariupol' in the USSR. These deposits represent zircon-enriched zones of nephelinic syenite called by the local name "mariupolit." Magmatic deposits of eudelolite are known in many countries, including deposits on the Kola Peninsula in the USSR. Eudeiolite deposits have no practical significance, but they are of certain interest as primary deposits from which secondary rich deposits of baddeleyite are formed. Zirconium ores are unsuitable for direct processing, always requiring a preliminary beneficiation for obtaining sufficiently rich concentrates. There are no definitely established requirements on the quality of zirconium ores. On the basis of a number of investigations and practical data, it may be assumed that exploitation of even large deposits of eudeiolitic ores is not expedient, since, at present, resources of zircon ores are adequate. As for zircon ores, they may be of industrial interest even in cases of a comparatively low zirconium oxide content. This is particularly true in respect to the ores easily adaptable to concentration. In any event, ores with a Zr02 content of 0.3-0.5% must already attract the attention of geologists. Slimes with this content obtained in exploitation of placers for other metals, for instance, gold, require consideration as a potential source of zirconium. Side recovery of zirconium during exploitation of other mineral deposits may be worthwhile even when its content in ores amounts merely to hundredths of one percent. The content of zircon in concentrates usually has to attain 90%. No other requirements are obligatory. However, in the process of beneficiation, all efforts are usually made to'obtain zirconium concentrates with a minimum content of iron, aluminum, calcium, silicon, and titanium, because the presence of these elements complicates the processing of concentrates. Besides, the high content of iron and aluminum, decreasing the refractory and acid-proof properties of zircon, makes the concentrates unsuitable for use as a refractory material and enamel opacifier. The entire history of zirconium production and application on an industrial scale numbers only 35-40 years. For this period, the world's annual output of zirconium raw materials rose from tens of tons to ten-thousands of tons in the recent decade. In the USSR, the use of domestic zirconium products was initiated prior to the war, mainly in the form of iron-free zircon as an opacifying agent for enam- els. During the war and postwar periods the zirconium industry in the USSR has shown considerable progress, increasing the variety of products and developing new fields of application, such as refractory production, electrical engineering, ferrous and nonferrous metallurgy, etc. Approved For Release 2002/08/06 : CIA-RDP80-00809A000700210138-1