منابع مشابه
The Manufacture of Lactose
Industry throughout the world is faced with a common problem that of the disposal of waste materials from manufacturing processes. In the case of the dairy industry, one such 'waste' which is produced in enormous quantities is the whey resulting from cheese and casein manufacture. In the 1996/97 season alone it is estimated that around five billion litres of whey were produced in New Zealand. I...
متن کاملThe Manufacture of Steel
Iron occurs mainly as oxide ores, though it is also found in smaller quantities as its sulfide and carbonate. These other ores are usually first roasted to convert them into the oxide. On a world scale the most important ore is haematite (Fe2O3), but in New Zealand the starting materials are magnetite (Fe3O4) and titanomagnetite (Fe2TiO4). The oxides are reduced with carbon from coal, through t...
متن کاملEffect of Chemical Grafting Parameters on the Manufacture of Functionalized PVOH Films Having Controlled Water Solubility
This study investigated the chemical grafting of a single-layer poly(vinyl alcohol) (PVOH) film. The effect of the grafting parameters (grafting time, grafting temperature, and concentration of fatty acid chloride) on the hydrophobicity of the film surface and the film solubility were evaluated. The PVOH substrate film (cold-water soluble at 20°C) was manufactured by flat extrusion and had a th...
متن کاملMANUFACTURE AND TESTING OF WATER-BORNE PAINTS BY USING VINYL LATEX CONTAINING VeoVa10 MONOMER
−− Two different water-borne dispersions (latex) containing different amounts of vinyl acetate and a commercial vinyl ester monomer (VeoVa10) were evaluated by incorporating them in paint formulations for wall protection. Three paint formulations were prepared with different PVC values. The main properties such as hiding power, washability, tension of adhesion, and elasticity were assessed. Cha...
متن کاملFungi and paper manufacture
Fungi have a significant impact on the economics of paper making and the end use of paper and products employing paper related components. Paper on a practical basis is a derivative of wood, and fungi that possess cellulose-degrading enzymes can directly impact the value and utility of various types of products. Fungi further have a negative economic impact on the pulp produced during paper man...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1876
ISSN: 0036-8733
DOI: 10.1038/scientificamerican01011876-3bsupp