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. 1889 Excerpt: ...to the reservoir. When the juice is sufficiently cleared, the carbonic acid cock, o, is turned off, and the juice allowed to flow into a reservoir through q, where the carbonate of lime settles. The clear juice is then fit for crystallisation. The man-hole, e, is provided for the cleansing of the apparatus from ...
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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. 1889 Excerpt: ...to the reservoir. When the juice is sufficiently cleared, the carbonic acid cock, o, is turned off, and the juice allowed to flow into a reservoir through q, where the carbonate of lime settles. The clear juice is then fit for crystallisation. The man-hole, e, is provided for the cleansing of the apparatus from separated carbonate of lime. The juice to be de-limed is supplied to the cistern, B, by means of the pipe,, and the gutter, t. other Method! or De-Liming Instead of employing carbonic acid or animal charcoal, the lime the juice. of the sugar-lime may be removed by the addition of a substance 3T an acid which forms with it an insoluble body, but does not affect the sugar. Oxalic acid is suitable for this purpose, oxalate of lime being insoluble in the sugar solution, but the acid is very expensive, and, besides, the precipitate is too fine, passing through the filter. Phosphoric acid is used for the purpose, phosphate of lime separating into flakes which can be easily removed by filtering through a thin layer of charcoal. Any free phosphoric acid is converted into phosphate of ammonia, neutralising the alkali, while the excess of ammonia is volatilised on the application of heat to the juice. Oleic, stearic, and hydrated silicic acids, and casein, similarly throw down precipitates. Acar uses pectic acid, which forms with the lime an insoluble pectate. Morgenstern has found sulphate of magnesia prepared from the Stassfurt Jriescrite successful in removing part of the impurities as well as a portion of the colouring matter. Frickenhaus tried hydrofluorio acid. In 1811 Proust recommended sulphite of lime; and in 1829 Dubrnnfaut took out a patent for the employment of sulphurous acid. Melsens, of Brussels, in 1849, employed hyposulphnrous acid, whi...
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Add this copy of A Handbook of Chemical Technology to cart. $5.02, good condition, Sold by HPB-Red rated 5.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 1988 by Lindsay Publications.
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