Patent GB-188667-A (GB)
Title: A process for treating liquids
IPC: B01D15/00
Filed: 1922-11-10
Abstract: The treatment of liquids with oxidizing gases is effected by the use of active carbon previously impregnated with the gas.  The carbon is preferably obtained from vegetable raw material in such a manner that the structure of the raw material is retained.  The impregnation may be effected by treating the carbon with gas under pressure at a low temperature, or with a solution of the gas in a portion of the liquid to be treated.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of liquid with gas, preferably under pressure, after powdered carbon has been mixed with the liquid, and the passage of liquid and gas in counter-current fashion through a column of granular carbon.  The carbon before use may be treated to remove gases, either by ignition or by heating in a vacuum.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 24667/10 and 172,074, [both in Class 55 (ii), Gas manufacture &c.].ALSO:The oxidation of mineral oils to fatty acids is effected by the use of active carbon previously impregnated with the gas.  The carbon is preferably obtained from vegetable raw material in such a manner that the structure of the raw material is retained. The impregnation may be effected by treating the carbon with gas under pressure at a low temperature, or with a solution of the gas in a portion of the liquid to be treated.  The Specification as open to inspection under Sect. 91 (3) (a) described also the treatment of liquid with gas, preferably under pressure, after powdered carbon had been mixed with the liquid, and the passage of liquid and gas in counter-current fashion through a column of granular carbon.  The carbon before use may be treated to remove gases, either by ignition or by heating in a p  vacuum.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 24667/10 and 172,074, [both in Class 55 (ii), Gas manufacture &c.]ALSO:The treatment of liquids with gases is effected by the use of the active carbon previously impregnated with the gas.  The carbon is preferably obtained from vegetable raw material in such a manner that the structure of the raw material is retained.  The impregnation may be effected by treating the carbon with gas under pressure at a low temperature, or with a solution of the gas in a portion of the liquid to be treated.  The process is stated to be applicable in oxidizing drying and semi-drying oils, and in the decomposition or oxidization of mineral oils for the purpose of converting them into fatty acids and other products.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of liquid with gas, preferably under pressure, after powdered carbon had been mixed with the liquid, and the passage of liquid and gas in countercurrent fashion through a column of granular carbon.  The carbon before use may be treated to remove gases, either by ignition or by heating in a vacuum.  This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 24667/10 and 172,074, [Class 55 (ii), Gas manufacture &c.].