The Manufacture of Glue and Gelatine; The Application and Uses of Machinery, Etc. Complete Lists of Manufacturers and Dealers in the United States and Canada
The Manufacture of Glue and Gelatine; The Application and Uses of Machinery, Etc. Complete Lists of Manufacturers and Dealers in the United States and Canada ..
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. 1898 Excerpt: ...of 10 per cent. ammonia a.nd more, and will, in this 9 form, bring the highest price. In large fertilizer factories where soluble phosphates are produced by dissolving Carolina rock or bone in sulphuric acid, a great deal of this tank water can be used for diluting the sulphuric acid, instead of mixing water with it. ...
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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. 1898 Excerpt: ...of 10 per cent. ammonia a.nd more, and will, in this 9 form, bring the highest price. In large fertilizer factories where soluble phosphates are produced by dissolving Carolina rock or bone in sulphuric acid, a great deal of this tank water can be used for diluting the sulphuric acid, instead of mixing water with it. The entire amount of ammonia is utilized in this manner, and is contained in the resulting super-phosphate. The dried tank water has also been tried in the manufacture of cyanide and yellow prussiate sulphate and carbonate of ammonia. MEMORANDA MEMORANDA The Evaporation of Clue in Vacuum Pans. We have called attention to the necessity of reducing the temperature for cooking glues in time as well as intensity as much as possible in order to obtain the best grades of glue from the raw material in process. It is desirable to draw the liquor from the cookers as fast asproduced, reducing thereby the time during which the glue remains in the cooker to a minimum. Bertram in cooking the stock uses a water-bath, preventing thereby the glue liquor as produced to come in contact with steam of a high and dangerous temperature. The process is, however, slow, and what is saved by avoiding an opportunity of the glues coming in contact with the steam of higher temperature, is partly offset by the longer time required for the cooking according to this process. The greatest amount of glue is produced by cooking the well prepared stock with water and steam in open vats, whereby the strength and temperature of the produced glue can be carefully watched. The liquors are run off when showing one to two degrees B. on the glue scale. Such first runs of glue stock, leached bones or horn piths when run in coolers will set and be firm enough to be cut in shreds. Dry glue...
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