Patent GB-149623-A (GB)
Title: Process for producing saponaceous soda
IPC: B01J2/00
Filed: 1920-07-26
Abstract: The Specification as open to inspection under Sect. 91 (3) (a) contains the following subject-matter: Finely-divided solid substances are treated while in motion with a fine spray of a liquid for various purposes.  The solid is dispersed in the form of a cloud or mist and is mixed with the sprayed liquid.  The moistened particles then fall, it may be, against a stream of air which may effect drying of the particles, a non-caking product being obtained. Anhydrous sodium carbonate may be thus treated with a spray of oleic acid to form a soap powder containing sodium bicarbonate; or the oleic acid may be used in admixture with water or soap solution. Unstable or hygroscopic salts may be coated with a spray of sodium silicate, the substances mentioned being sodium hyposulphite and per-salts such as sodium perborate. Anhydrous "sulphuric sodium oxide" may be hydrated by a water spray, forming fine crystals of Glauber's salt.  It is stated that the process in which a drying effect is produced can be combined with other operations such as colouring, impregnating, sugaring, disinfecting, or sterilizing of the material treated.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) contains the following subject-matter: Finely-divided solid substances are treated while in motion, for instance in the form of mist, with a spray of liquid. The moistened particles may fall against a stream of air which may effect drying.  A coal-tar dye melted with dextrin and then pulverized may be sprayed with wood-spirit or ethyl alcohol, the product being particles coated with a film of dye.  This subject-matter does not appear in the Specification as accepted.ALSO:Anhydrous sodium carbonate is treated with a spray of oleic acid to form a soap powder containing sodium bicarbonate; or the oleic acid may be used in admixture with water or soap solution. The Specification as open to inspection under Sect. 91 (3) (a) includes the following subject-matter:Unstable or hydroscopic salts may be coated with a spray of sodium silicate, the substances mentioned being sodium hyposulphite and per-salts such as sodium perborate.  Anhydrous "sulphuric sodium oxide" may be hydrated by a water spray, forming fine crystals of Glauber's salt.  This subject-matter does not appear in the Specification as accepted.ALSO:Anhydrous sodium carbonate is treated with a spray of oleic acid to form a soap powder containing sodium bicarbonate; or the oleic acid may be used in admixture with water or soap solution. The Specification as open to inspection under Sect. 91 (3) (a) contains the following matter: The invention includes the treatment of solids in the form of mist with sprayed liquids.  The moistened particles may fall against a stream of air which may effect drying, a non-caking product being obtained.  Anhydrous "sulphuric sodium oxide" may be hydrated by a water spray, forming fine crystals of Glauber's salt.  It is stated that the process in which a drying effect is produced can be combined with other operations such as colouring, impregnating, sugaring, disinfecting, or sterilizing of the material treated.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) contains the following subject-matter.  Finely-divided solid substances are treated while in motion with a fine spray of a liquid for various purposes.  The solid is dispersed in the form of a cloud or mist and is mixed with the sprayed liquid.  The moistened particles then fall, it may be, against a stream of air which may effect drying of the particles, a non-caking product being obtained.  Unstable or hygroscopic salts may be coated with a spray of sodium silicate, the substances mentioned being sodium hyposulphite and per-salts such as sodium perborate. Anhydrous " sulphuric sodium oxide " may be hydrated by a water spray, forming fine crystals of Glauber's salt.  It is stated that the process in which a drying effect is produced can be combined with other operations such as colouring, impregnating, sugaring, disinfecting, or sterilizing of the material treated.  This subject-matter does not appear in the Specification as accepted.