Patent GB-810383-A (GB)
Title: Improvements relating to tallow emulsions, and applications thereof
IPC: C09K23/00
Filed: 1955-08-22
Abstract: An emulsion of tallow is prepared by mixing the tallow with a sulphated fatty alcohol containing 9-18 C atoms, adding either a higher fatty acid containing 16 or 18 C atoms or a light mineral lubricating oil, heating the mixture to melt the tallow, and stirring in hot water containing sufficient alkali to neutralize any free fatty acid.  In examples, tallow or hydrogenated tallow is mixed with lesser quantities of stearic acid or spindle oil, and a small amount of sulphated cetyl, stearyl or lauryl alcohol. The mixture is heated to about 75 DEG  C., and from 2 to 9 times by weight of water containing alkali is added with stirring to form the emulsion.  The emulsion may be used for (1) sizing textile materials either alone or with the addition of a vegetable gum, e.g. dextrin; (2) separating mineral ores by froth flotation when the emulsion, preferably containing spindle oil, is mixed with sodium silicate and the pH value adjusted to about 5; (3) treating aggregate prior to the application of bitumen to form a road-surfacing material.ALSO:An emulsion of tallow is prepared by mixing the tallow with a sulphated fatty alcohol containing 9-18 carbon atoms, adding either a higher fatty acid containing 16 or 18 carbon atoms or a light mineral lubricating oil, heating the mixture to melt the tallow, and stirring in hot water containing sufficient alkali to neutralize any free fatty acid.  In examples, tallow or hydrogenated tallow is mixed with lesser quantities of stearic acid or spindle oil, and a small amount of sulphated cetyl, stearyl or lauryl alcohol.  The mixture is heated to about 75 DEG  C., and from 2 to 9 times by weight of water containing alkali is added with stirring to form the emulsion.  The emulsion may be used for sizing textile materials either alone or with the addition of a vegetable gum, e.g. dextrin.ALSO:An emulsion of tallow used in froth flotation is prepared by mixing the tallow with a sulphated fatty alcohol containing 9-18 C atoms, adding either a higher fatty acid containing 16 or 18 C atoms or a light mineral lubricating oil, heating the mixture to melt the tallow, and stirring in hot water containing sufficient alkali to neutralize any free fatty acid.  In examples, tallow or hydrogenated tallow is mixed with lesser quantities of stearic acid or preferably spindle oil, and a small amount of sulphated cetyl, stearyl or lauryl alcohol.  The mixture is heated to about 75 DEG C., and from 2 to 9 times by weight of water containing alkali is added with stirring to form the emulsion.  When used for concentrating mineral ores the emulsion, containing spindle oil, is also mixed with sodium silicate and the pH value adjusted to about 5.ALSO:An emulsion of tallow is prepared by mixing the tallow with a sulphated fatty alcohol containing 9-18 C atoms, adding either a higher fatty acid containing 16 or 18 C atoms or a light mineral lubricating oil, heating the mixture to melt the tallow, and stirring in hot water containing sufficient alkali to neutralise any free fatty acid.  In Examples, tallow or hydrogenated tallow is mixed with lesser quantities of stearic acid or spindle oil, and a small amount of sulphated cetyl, stearyl or lauryl alcohol. The mixture is heated to about 75 DEG C., and from 2 to 9 times by weight of water containing alkali is added with stirring to form p  the emulsion.  The emulsion may be used for (1) sizing textile materials either alone or with the addition of a vegetable gum, e.g. dextrin, (2) treating aggregate prior to the application of bitumen to form a road-surfacing material; alternatively the bitumen may be mixed with the emulsion, and the mixture with the aggregate.