. Journal. ia. The Steam entering by the pipe v at the bottom of I-., .linesout the hist traces of ammonia siill in the liquid, andthe steam with the ammonia flow through the pipe tinto the vessel 11, where, after becoming considerablyenriched with ammonia in passing through the liquor,it then enters by the pipe / into the inner • of the vessel (., until finally it arrives along withammonia and carbonic acid by the pipe t in tin- collect-ing vessel M. and further into the p pes )//, which arecooledin a trough containing water. The steam liecohiesfor the greater part condensed here, and
. Journal. ia. The Steam entering by the pipe v at the bottom of I-., .linesout the hist traces of ammonia siill in the liquid, andthe steam with the ammonia flow through the pipe tinto the vessel 11, where, after becoming considerablyenriched with ammonia in passing through the liquor,it then enters by the pipe / into the inner • of the vessel (., until finally it arrives along withammonia and carbonic acid by the pipe t in tin- collect-ing vessel M. and further into the p pes )//, which arecooledin a trough containing water. The steam liecohiesfor the greater part condensed here, and flows Mar. 30,1883.] THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. 209 back i» the somewhat inclined pipes m, into the col- i into the form of sulphide of calcium ; and this, at a highlecting vessel, from which it reaches the apparatus again temperature in the presence of steam, yields sulphurettedthrough the overflow pipe a. The mixture of ammonia hydrogen and lime. The chief object in using sawdust. and carbonic acid gases, with only a small quantity ofwater vapour, flows over through the pipe H into thevessels O and P, by the liquor in which it becomesabsorbed.—G. H. B. Process for the Recovery of Sulphur from Soda Waste. Dingl. Polyt. Journ. 255, 206, Grouven (Ger. Pat. 29,848, May 30, 18S4) mixesalkali waste with 10 per cent, of sawdust, and from 10to 25 per cent, of water, according as the waste is new orold, in a kneading machine, and then moulds the result-ing doughy mass into tubes, in an ordinary press. Themost suitable length for these tubes is 250mm., the exter-nal diameter being 45mm., and the internal 20mm. Thetubes are exposed to the action of the air, under cover,for about two days, when they become hard and are next heated in retorts, along with steam. Thecarbonic oxide and hydrogen generated throughout themass, completely reduce all the oxides of sulphur con-tained in the waste. Almost all the sulphur is converted is to give great
Size: 1334px × 1874px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
