THE aim of all smelting of sulphide copper ore is to collect the copper in matte which contains usually 40 to 45 per cent. Cu, 35 to 3 ยฐ per cent. Fe, and 25 per cent. S, and the missing constituents in a slag, a mixture of silicates of Jr.on, lime, etc., low enough in Cu to form a waste product. Th
Review of recent progress in ferrous metallurgy
โ Scribed by Hatfield, W. H.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1936
- Weight
- 308 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0368-4075
No coin nor oath required. For personal study only.
โฆ Synopsis
stnntliird types of pliuit-stills, itiiscrs, ctiiulsificrs, sifters, filter prcsscs, a ~i d tlie likc, cotistructcd in vnrious nietnls--wcrc also 011 view, i i i iidditioli to cnrboiiizotion plniit, niitl iiintiy ititcrcsting ititlitstrinl niitl scientific iiistriintetits. Aiiioiigst tltc iitstritiiictits cshibitcd, one may pcrltitps mcntion thc itiiprovcd typc of 'I'intoiiictcr nnd tlic ncw '' illiilt~ilcc " recordcr \vliic.Ii tticasurcs or controls tctiipcriiturc, ltytlrogcii-ion concetitmtioli, clect.ricn1 coniluctivit,y, iiiicl ot.licr coiiditioiis.
I n the s p t ~ nvnilnhlc, tititch of iiitcrcst itiiist III.
otiiittctl (such :is tlie Iiitlustriiil Iksciirrlt lCsliibit)? hiit cnipliiisis sliould 1)c Iiiitl 011 t,lic fiict. t,liiit t.lic Ihitislt C'hcniical P l i i t i t Eshibition provitlctl iiiiiplt~ iiiitl coii-\iticing cvidcncc of the libility of Ihitisli cliritiiriil requirctl, not only for t,hc clic~niriil iiitlustrics, Iiiit? iilso phiit. ii1:iiiiifiicturcrs to s1tpply ;ill iititl iitty 11lnlit for thc ttutiicrous niid iliiportiint ititluutrics whicli nrc sotiictiiiics grouped ns tlte " proccss " iiitlustrics. Tmit, I)ut not Icnst, the workiii:itiship of thc csltibits showed tliiit J3ritish crnftsitinlisltip Iins lost tiotic of its cuiiiiittg. 111 closing, refcrcticc slioiiltl bc ~it:itlc to tlic four evnporntors which linvc bccii coiistructcd for :in iiiiportniit firm of sugiir rcfitiers. Tltcsc cvapomtors, which iirc said to IJC tlic IitrgcSt \vcltlcd pressure vcsscls ever i~intlc, nrc dcsigticd for it prcssitrc of 250 11). per sq. in., 011 i i t i iiitcriinl tliiiiiictcr of 11 ft. Thc t o t d Iieiglik is 26 ft. 9 in. iitid encli cviiporiitor is coiiiposcd o& two sliclls, ciicli 10 ft. .I iii. high ; thc cnlniitlriii (bottotti) scctioti coittniiis 1792 tubes nitd thc sltcll tliickttcss is 148 iii. The cvnporntors wcrc tcstcd :it 375 11). per sq. in. Soiiic dctnils of iiiniiufncturc arc given iti nii articlc in The Ihgineer (Scptcmlcr 18, 1936, 1). 237).
๐ SIMILAR VOLUMES
As pointed out long ago by Laplace, viscosity may become a large perturbation to capillary phenomena, especially close to solid surfaces where molecules may stick. A spectacular consequence of this is the impossibility for a triple line to move on a solid if the liquid/vapor interface is considered