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Show tlMY-fllTY-KIllION-DOUARSWORTH OF I'iETALS SAVED BY RDMiG "JO" The United States geological survey's figures prepared by J. P. Danlop. showing show-ing tba recovery of "secondary" copper, lead, sine tin, and antimony fa 11 are summarised In the table below. The secondary metals Include those recovered from scrap metal, sweepings, drosses, etc. They are called "secondary" to distinguish distin-guish them from the metale derived from ore, which are known aa "primary" metals. . i The table grres the quantity and value of each secondary metal recovered during the rears ltoa nnd 11. The largs In-creaee In-creaee ahown In the figures for 110 was occasioned partly by Increased business sctlvlty and the growing tendency toward to-ward conservation, but is explained In part by the fact that In 110 the survey made a more extensive canvass of tha souscee of production. As these secondary sec-ondary metals displace equal quantltlea of primary metal In supplying consumption, consump-tion, they undoubtedly affect the prices of primary metale to some extent now and will affect them even more In the future. figures for- 1M recoveries show a large Increase over those for IM. mainly because be-cause the quantity of metal recovered from scruff, and drosses from tin and terne plate manufacturers waa ascertained. ascer-tained. : .. Old Tin Case Don't Fay. There were also several plan ta whkh made tm oxide nnd tin chloride from clean scrap tin. The production of there compounds ta calculated aa metal to gvold dlacioeliuj the output of product having a limited nee. Although a large uuontlty of tin ia recovered from scrap by alect.-o-lytlc treatment, and a smaller quantity la converted directly Into oxide and chloride, chlor-ide, the principal recovery la made from acruff and drosses, or m ailoya, Tha use of old tin cans aa a scirce of tin waa not extended. The cost of collecting, col-lecting, transportation charges and Inability Ina-bility to dispose of the old black plate from which the tin Is wholly or partly removed are the principal reasons given why mora old tin cans are not utilised. The relation of escondary to prims ry Production of secondary metals In the United Stalea In laot and Ilia. ik. - wa. . v fit f ill I . ? a ' ' "' ' i : ' ' ' X'Z?1"- U,c,udro th' 5 ''.."...'Jl ..eJ.l.tlt.K4.0oa Rem.iedra4w':::::::::;:::::: -"-;:H .""" six Pecondsry lead .'. li'H; - . a aas lea Recovered lead In alloys f?!'J?I M'M4 Secondary spelter ""-v :?!? e ei. ' ?ii a t.t ana Recovered aino ta alloya other Khan brass ....I 1.11 MM.M t,m 4,141. see Rr3 tVJin..in-::::::::::::L":.v:i. v.v.'i .i) a,m.itaj .. RelanVin? ' WT.Mtl tW j- 4i. Total value .... .... ItH.HMHI m.W.K metals and the methods employed In their recovery will be more fully set forth In the chapters relating to copper, lead, sine tin and antimony 'In tha aurvey'a annual volume "Mineral Resources" for 110. The total amount of secondary copper recovered, on the assumption that tha brass remelted had an average copper 'content of 70 per cent, waa tl.WO tone, of which It. S0O tone waa recovered by regular refining slants and the remainder by planta treating only secondary material. ma-terial. At least 10,004 tone was recovered from dean scrap made In the course of manufacture of copper and hcaseware. so thst only 41. (00 tons was obtained from aehea and cinders and from material that had entered the trade In manufactured form and been dlerarded. The survey Inquiry waa extended so as to Includs the railway companies' figures for old metala reused by themselves, and to these la attributed a large proportion of the increase In the figures for copper. The production from secondary sources in 11 waa equal to about 17 par cent of the domestic consumption of new copper. cop-per. . Lead math of Outpnt, ' ' The secondary lead was equal to U.I per cent of the refined lead produced la the United States. . , Ths secondary sine (Including that In brass) equaled M t per cent of the total C roductlon aa primary spelter In the nlted States. . . , The secondary antimony (recovered almost al-most wholly In alloya) shown a large Increase, In-crease, and. aa tha production from domestic do-mestic antlmonlal and antimonlal lead ores waa comparatively small, the secondary sec-ondary recoveries are the only Important domestic source of supply. The production of tin from ere mined in the ('nlted States le negligible, so that the secondary recoveries constitute prsc-tlcallythe prsc-tlcallythe aoledonieslceurpjyrhe |