. Journal. y a given expenditure ofpower, and illustrate bow economies in heating can beiy a suitable choice of furnact jacki material. The authors advise the use oi such methods for the com-parison of various grades of fire-brick.— R. S. H. Enqi bh Pa pen i 3. Dust or !? Is, Strut* and the HI: Producing a Deliquescent Liquor capable of Pr, the Formation of . (J. J. C-M. de Liel London. Eng. Pat. , Aug. 3. 1904 The waste liquors obtained in the manufactureiwhich are rich in magnesium salts, are treated inor (lit with calcium hydroxide (slaked lime) «magnesia is precipitated togethei with
. Journal. y a given expenditure ofpower, and illustrate bow economies in heating can beiy a suitable choice of furnact jacki material. The authors advise the use oi such methods for the com-parison of various grades of fire-brick.— R. S. H. Enqi bh Pa pen i 3. Dust or !? Is, Strut* and the HI: Producing a Deliquescent Liquor capable of Pr, the Formation of . (J. J. C-M. de Liel London. Eng. Pat. , Aug. 3. 1904 The waste liquors obtained in the manufactureiwhich are rich in magnesium salts, are treated inor (lit with calcium hydroxide (slaked lime) «magnesia is precipitated togethei with Calcium suleaving calcium chloride in solution. The liquid olis used for laying dust on roads. At., and for meltin or ice on the same, li use it may be dilutt water.—-A. (?. Wood and otln r Porous Mali rials ; In,pr, •;, Boult, London. From Hiilsberg* Co., Chaiburg. Germany. Eng. Pat. 19,737, Sept. 13. See Addition of Sepl. 27. 1904. to Fr. Pat. .11 !i1902; 1905, 278.—T. F. United States Patent, Refractorii (ompound and Proa ss of Making !Davison, Chicago, 111. US. 1at. 792,882, Jt |1905. Natural magnesite, silica and iron oxide aredry state, and burnt to clinker in a rotary kilnclinker produced is powdered.— A. (J. L. French Patents. Moulding Argillaceous Matter; Process for I Products obtained by Refractory. 1). li. V a and J. R. Stauffer. Fr. Pat. 360,960, Jan. :i. See Pat. 779,195 of 1905 ; this J., 1905, 130 Clay; Process of Treating . I). B. Williams an I. Stauffer. Fr. Pat. 350,961, Jan. 3, 1906See Pat. 779,190 of 1905 ; this 1905, 136, Slag : [Building and Decorating Matei of Objects from Blast-furnace — Vr. Pat. . Jan. 10. 1905. A. F. I The slag as it leaves the furnace or after mixing wil I bodies such as sodium carbonate, borax, oi or very fusible glass, is worked up by mouldii as in the processes usually employed in e into vitreous articles suitable for use as build ii I decorative materials.—J. H. C. Till
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
