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CEEhLISTRY AXD INDUSTRP
giving tlic rcsults sliowi in Tal)le 1. Tlicrc cnn IJC 110 doi1l)t ns to the polymerisation, tlie specd of which incraws rripidly iis tlic tcmpcrntiirc rises. After t.lle hc?:it trccitnicnt, distillation tests were cnrricd out on rtic siiniples, iiiitl tlicsc sliowcd t l i n t wider similnr cmciitions thc yield of oil tlccrensctl rnpidly ns tlic Ilegrec of polynicriwition incrensetl. Tlic tar trentcd n t 100" gnve 43O/O of oil \dieti distilled to 320", whilst thiit trciitctl rit 85" gnvc %yo. Tlic iintrcntetl tnr gnre f;lo!,, ciilcaliiterl on tlic dry linsis. 'l'lic pitclics liiid 4niiliir niclting points. d direct tlicrniril cffcct of tlic I Icilyrticrisiit,ioti wiis lookcd for, but coiiltl not IJC olJscr\*etl. I licrc wn, Iio\vcvcr, IJC little tloulit tlint tlic polyiiicririxtioii is csotlicrinic, nntl cnii IJeconic sclf-siipl)ortiiig in ii lnrgc iiitiss. A tiiriiing p i n t of nlmut 56" i m s foiintl h r t.lic circuliiting tnnk, ii$ wliith tlic tcnilicrnturc 1 eciinic iiiistiilh, iuitl 1iiiI)lc to rise qiiic1;ly.
'l'lic effect, of t.lic 1iolpnicrisnt.ioii iipon tlic yield of oil :;LVC food for tlrorrglit HS to tlic distillntion of tlic tnr. 1 he rciictioii Iniist. IJC ~iroccciling tliiring tlic IJoiliiig of1 ( I f tlic witer, iind in tlic ciisc of. wet. tnr, wlicrc this 1 I~OCCSS occupies sonic dnys, tlicrc must. 1 ic ii consit1cr;ilh reduction i i i tlic yicld of oil witli ii corresponding iiicrciisc in tlic pitcli. I!'iirtl~cr cslierinients i n the liiboriitory :Iio\wtl iilso tlint tlic yield of oil is tliiiiiiiislictl to :I air tliniiigli tlic tnr during tlic distillntion, ns ivns tlonc a t tlirit, t.inic i n t,lic old stills. I t W I ~R tlccitlctl, tlicrefore, t o erect ti tlistillrition pliitit, in wliicli air is rcplncctl I J ~ *t.Ciitii, r i n d in which t lie tlistilliition is coniplct.ctl rnpitlly.
π SIMILAR VOLUMES
## So . nf folk CIIIIIIII&H i h r TUCS ,, G Jlrlgliton 12.10p.111. 1,360 Wind SE'S. '~iiiir. ,, 7 IIiiII, near Vie-7.30 n.m. 4,630 Tlilck aatcr fog Frl. ,, 8 110. r.16 n.ni. 8,100 \\'!nil SX'S.