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The manufacture of alum and the sulphates and other salts of alumina and iron; their uses and applications as mordants in dyeing and calico printing, and their other applications in the arts, manufactures, sanitary engineering, agriculture, and horticulture (1901)

Geschwind, Lucien · London : Scott, Greenwood & son; New York : D. Van Nostrand co. [etc., etc.] · leaf 343

An illustration from The manufacture of alum and the sulphates and other salts of alumina and iron; their uses and applications as mordants in dyeing and calico printing, and their other applications in the arts, manufactures, sanitary engineering, agriculture, and horticulture, 1901, leaf 343
intermediate spaces being left for the circulation of the gas (Fig. 186). At the present time the Laming mixture is used in the form of a single layer 20 to 40 inches in thickness. The apparatus consists of a large sheet-iron tank (Fig. 187), 12 to 24 feet square, set on the ground and provided… … set. The arrangement is very Fig. 188. — Distributor bell for a set of Laming purifiers. simple, all the pipes leading to or from the purifiers opening into a central tank filled with water and containing a bell divided into compartments — as shown in diagram, Fig. 188 — the central one receiving…

Alum · Sulphates · Dyes and dyeing · Chemistry, Technical

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