Journal . da a>h being also madelierc from ammonia soda. It is, therefore, no longer the want ofthese two proclucts that keeps the Leblanc works going, butrather the need for chlorine. Large quantities of salt-cake are anecessary by-product of the Leblan:; proL*ess, a small and ever-decreasing portion of whii-h is converted into alkali, whereas thelargest portion is >old to glass works. Hargreaves and Robinsonsprocess is at work at Haiuuont (North). Pechiney, at Salindies,nses magnesia in bis ammonia-soda works, for the liberation ofammonia from amiuonium chloride. He thus recovers on th
Journal . da a>h being also madelierc from ammonia soda. It is, therefore, no longer the want ofthese two proclucts that keeps the Leblanc works going, butrather the need for chlorine. Large quantities of salt-cake are anecessary by-product of the Leblan:; proL*ess, a small and ever-decreasing portion of whii-h is converted into alkali, whereas thelargest portion is >old to glass works. Hargreaves and Robinsonsprocess is at work at Haiuuont (North). Pechiney, at Salindies,nses magnesia in bis ammonia-soda works, for the liberation ofammonia from amiuonium chloride. He thus recovers on the onehand the sodium chloride lost in the mother-liquors, and on theother hand produces mairnesium chloride for the manufacture ofeiiiorine by theAVcldon-Pechiney process. It is said that Pechiiieyis about to. introduce into his establishment Chances process furthe recovery of suli>hur from alkali waste. ,983 ,031 ,516 ,319 22,17i 23,518 21,321 l!i,613 59,tJ3U 4,006 70,723 5,320. The manufacture of bleaching powder is vcr^ flourishing andlucrative. Tiie consumptiou iu France is ^ery large, nnd sevenilthousand tons are annually imported from England. In some worksthe Weldon process is at work, whereas Kuhlmann,at Lille, recentlyintroduced the first Deacon plant into France an<l is said to be wellsatisfied with the result. It is not known whether solid bleachingpowder is there manufactured by Deacon gas, this works jji-oduciiiglange quantities of bleaching liquor, which is directly delivered tothe consumers in the neighbourhood. The company of St. Gobaiualso intends to adopt the Deacon process. The Wcldon-Fcchineyprocess is at present only workeil by the inventor at ^nly two works in France are eugnged in the manufacture ofchloi-ates, viz., that of St. Gobain and that of Pechiney. The formercompany uses VVeldon gas, wheivas Pechiney employs the gasproduced by his new process. The total production of chloratesamounts to 700—SOO tons per
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
