Chemical Age Volume 10

Chemical Age Volume 10

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 edition. Excerpt: ...must be cleaned of sulphate of lime, which forms a non-conducting incrustation on the bottom, thereby increasing fuel consumption. The time of operation of a kettle salt block is 10 to 15 days, so that two runs are made a month. About 45 to 50 bushels of salt are made with a ton of slack coal at Syracuse. Chatard8 states that this is the original Syracuse method of evaporating brine and arose from.the use of the potash kettle, the largest boiling apparatus known to the early salt makers who first used it in 1788. Later the kettle was set in an arch of stone, and in 1793.. four kettles were combined forming a salt block. In i860 the method was used at Saginaw, Michigan. It was also used in the Kanawha Valley of West Virginia and in some of the early Ohio plants, but it has now been practically abandoned in all these places. operation of the plant. Owing to the widespread use of carburetted water gas and the enormous quantities of materials used in its production, the problem of more efficient and economical operation is a large one and one worthy of study. 'Xrw York State Museum. Rull. 11, p. 3.0. 4U. S. G'eol. Survey, 7th Annual, p. o07. 'Enjdeharclt. loc. cit., p. 40. "U. S. Geol. Survey, 7th Annual, p. 507. Pan Method.--In the pan method of evaporated salt, the brine is pumped from wells into large storage tanks and from these flows down into the pans which are made of wrought iron plates, about one-half inch thick, rivetted together. They are usually 20 to 25 feet wide, 80 to 100. feet long, and 12 inches deep, separated into two parts by a thin partition, over which the brine, slightly heated in the cooler portion of the pan, passes into the main portion where evaporation is completed. The fire-box or grate is five or six more

Product details

  • Paperback | 72 pages
  • 189 x 246 x 4mm | 145g
  • United States
  • English
  • black & white illustrations
  • 1236890272
  • 9781236890276