The Manufacture of Cellulose; A Practical Treatise for Paper and Cellulose Technologists, Managers and Superintendents

The Manufacture of Cellulose; A Practical Treatise for Paper and Cellulose Technologists, Managers and Superintendents

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ...by the Messrs. Jung and Lindig to insure profound secrecy, and presented in an altered condition two years later, having been refused the first-timer--My-ffialB object was to effect the double decomposition between the sodium silicate and the!.calcium bisulphite, at the end of which reaction sodium sulphite and calcium silicate are formed. The latter serves to close the pores of the sulphurous acid resisting substances which are made into a mass with liquid glass Digesters coated in this manner have proved to be very satisfactory, although very many factories have departed from this process, and returned to the old manner of lead coating. In order to prevent the lead from being attached, should a leak in any part of the mass occur, I have recommended, -S wlf f!.m Ylg-53' t0 cover the diSester A with a jacket B of thin tin and to fill the interring space with the heavy residue obtained from the petroleum refineries Into the outer jacket m enter the pipes m2 and m3 for m and, outlet of the liquid residues and ml for emptying. In this manner the boiler also receives heat from outside, and forms at any place, laid bare by cracking of the inner lining, a protecting coat of mono-sulphite of lime. This jacket, against the one proposed by Soloman, has the ad la Fig. 53. vantage, that inside of a few hours it can be completely removed in case of repairs becoming necessary, and that danger of explosion is altogether excluded. In the case of any rivet leaking, the sulphurous acid leaking out, escapes through the hot oil in the form of gas, which is at once noticed. With digesters, the jacket of which is heated with steam, a dangerous moment is prevalent, as the space between boiler and jacket is entirely without protection against sulphurous acid.and...show more

Product details

  • Paperback | 64 pages
  • 189 x 246 x 3mm | 132g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236578368
  • 9781236578365