Solid detergent compositions containing up to 40% by weight of water are obtained by mixing 100 parts by weight of an aqueous 40 to 60% by weight alkyl sulfate paste at 20.degree. to 80.degree. C. with (a) 15 to 100 parts by weight of a sodium salt selected from the group consisting of sodium sulfate, sodium carbonate and sodium silicate; and/or (b) 10 to 300 parts by weight aluminosilicate; and converting the solid mixture obtained into particulate or powder form at 20.degree. to 60.degree. C.
Heterogenous surfactant granules consisting of an inner core containing a) alkyl sulfates corresponding to formula (I): in which R.sup.1 is an alkyl radical containing 16 to 18 carbon atoms and X is an alkali metal or alkaline earth metal, ammonium, alkylammonium, alkanolammonium or glucammonium, and b1) alkyl sulfates corresponding to formula (II): in which R.sup.2 is an alkyl radical containing 12 to 14 carbon atoms and X is as defined above, or b2) alkyl ether sulfates corresponding to formula (III): in which R.sup.3 is an alkyl radical containing 16 to 18 carbon atoms, n is a number of 1 to 3 and X is as defined above, and a coating over the inner core consisting of alkyl sulfates corresponding to formula (II), with the provisos that the ratio by weight of component a) to component b) in the inner core is 100:0 to 30:70, and the ratio by weight of the inner core to the coating is 99.5:0.5 to 90:10.
The method for producing a fine solid builder particle includes the steps of suspending a solid builder in a dispersion medium containing 20 to 100% by weight of a surfactant, and carrying out wet grinding of the solid builder. The builder composition containing the fine solid builder particle is obtainable by the above method. The detergent composition containing the fine solid builder particle is obtainable by the method. The method for producing a detergent composition includes the steps of carrying out wet grinding of a solid builder using a dispersion medium containing a surfactant to give a mixture of a fine solid builder particle and the surfactant, and further adding the mixture to a composition for a detergent.
A process for producing compacted free-flowing nitrocellulose based lacquer raw materials is described. The process involves pressing a nitrocellulose based lacquer feed material, which is moistened with alcohol or water, through the holes of a die. The pressing step may be performed by means of at least one circulating breaker. The process optionally comprises shearing off the compacted lacquer raw material into pieces of selected length, below the die. The compacted nitrocellulose based lacquer raw materials prepared by the process of the present invention are free flowing and have a moisture content of at least 25%.
