Abstract: Mixtures of surfactants capable of forming "G" phase are prepared by forming one component of the mixture from a precursor in the presence of the other component or components and sufficient water form the product in the "G" phase.

Abstract: Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of: at least one predominantly aqueous liguid phase which is separable into a distinct layer by centrifuging the composition at 800 times normal earth gravity at 25.degree. C. for 17 hours, and which contains at least part of the electrolyte and less than 75% by weight, preferalby less than 10% by weight, of the surfactant, and one or more other phases which together contain at least part of the builder as solid particles dispersed in the composition and at least part of the surfactant, preferably either as a network of solid surfactant hydrate, or as a "G" phase liquid crystal which may be associated with an "L" phase, micellar solution.

Abstract: Liquid detergent compositions suitable for laundry use consist essentially of water, Electrolyte, Active Ingredient and preferably a Builder. They comprise a space-filling, floc-like aggregate of surfactant containing spherulites, substantially cocontinuous with an aqueous liquid micellar solution. They are shear thinning, mobile, stable to shear stress, storage under extreme climatic conditions and high pH.

Abstract: Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of: at least one predominantly aqueous liquid phase which is separable into a distinct layer by centrifuging the composition at 800 times normal earth gravity at 25.degree. C. for 17 hours, and which contains at least part of the electrolyte and less than 75% by weight, preferably less than 10% by weight, of the surfactant, and one or more other phases which together contain at least part of the builder as solid particles dispersed in the composition and at least part of the surfactant, preferably either as a network of solid surfactant hydrate, or as a "G" phase liquid crystal which may be associated with an "L" phase, micellar solution.

Abstract: Liquid detergent compositions suitable for laundry use consist essentially of water, Electrolyte, Active Ingredient and preferably a Builder. They comprise a space-filling, floc-like aggregate of surfactant containing spherulites, substantially cocontinuous with an aqueous liquid micellar solution. They are shear thinning, mobile, stable to shear stress, storage under extreme climatic conditions and high pH.

Abstract: Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of : at least one predominantly aqueous liquid phase which is separable into a distinct layer by centrifuging the composition at 800 times normal earth gravity at 25.degree. C. for 17 hours, and which contains at least part of the electrolyte and less than 75% by weight, preferably less than 10% by weight, of the surfactant, and one or more other phases which together contain at least part of the builder as solid particles dispersed in the composition and at least part of the surfactant, preferably either as a network of solid surfactant hydrate, or as a "G" phase liquid crystal which may be associated with an "L" phase, micellar solution.

Abstract: Sulph(on)ation of organic feedstocks is performed with undiluted sulphur trioxide in a recycle loop reactor in which the feedstock is diluted with its recycled sulph(on)ation product, contact of the feedstock and sulphur trioxide occurs under conditions of turbulent flow and the recycle ratio is high.