Patent GB-932067-A (GB)
Title: Improvements in or relating to ion flotation processes
IPC: B03D1/004
Filed: 1960-12-29
Abstract: Non-proteinaceous organic ions are removed from solution by contacting the ions with an ionic, organic reagent to form an insoluble reaction product and thereafter separating the insoluble reaction product from the solution, preferably by frothing it as the scum with various gases.  Useful gaseous materials are methane, ethane, butane, halogenated hydrocarbons, carbon dioxide, nitrogen and argon.  The ionic, organic reagents used are the surface active collectors utilised in ore flotation procedures with at least one hydrophilic group and at least one aerophilic group and an electrical charge which is opposite to the ion which it is desired to remove from solution.  Many examples are given of such collectors.  Amongst the compounds which may be treated by this process are:- abietic acid, ethanthionamide, p-dimethylaminoacetanilide, 2,4-dinitroacetanilide, acetylacetone, acetaldoxime, acetic acid, phenylacetic acid, sulphoethanoic acid, 2-acetyl-4-bromo-1-naphthol, acetonitrolic acid, acetylenedicarboxylic acid, adipic acid, adrenaline, alanine, arginine, tryptophan, allanturic acid, alloxanic acid, barbituric acid, 5-benzamido-8-ethoxyquinoline, N-phenyldibutylamine, o-nitroaniline, 2,4,6-trinitroaniline, o-anilinsulphonic acid, o - nitrobenzoic acid, 1 - methoxy - 2 - nitrobenzene, o-ethylaminobenzoic acid, ascorbic acid, p-aminobenzenearsonic acid, azobenzenedicarboxylic acid, dimethylphosphinic acid, p-cyanobenzoic acid, benzenephosphonic acid, p-benzophosphinic acid, o-sulphamidobenzoic acid, diethyl sulphoxide, benzenecarbothioic acid, bis(m-aminophenyl) ketone, 2,4,5-pyridinetricarboxylic acid, triethylbismuthine, biuret, ethaneboronic acid, benzeneboronic acid, nitromethane, a -isonitrosobutyric acid, dimethylarsenic trichloride, nitrourethane, diethylphosphoric acid, bis(dibutylthiocarbamyl) disulphide, ephedrine, N-ethylbenzalimine, D-gluconic acid, isocinchomeronic acid, isothiocyanic acid, acetamidine, kojic acid, actithiazic acid, actinomycin, agrocybin, amicetin, the bacitracins, D-4-amino-3-isoxazolidone, 3-hydroxy-2-butanone, glycerol, alkyl sulphides, gramicidin, the tetracyclines, chloramphenicol, erythromycin, 5-(n-butyl)-pyridine-2-carboxylic acid, streptomycin, the penicillins, tyrocidine, picric acid.  Various organic compounds can be separated by utilising different solubilities in various solvents and at particular pH's.  If the ion to be collected exists as a cation the collectors which are for the most part salts of weak acids can be made into stronger acids by adding electronegative substituents or can be long chain alkyl sulphonates.  When the insoluble reaction products being recovered as a froth are about the same colour a small amount of an organic dye which has properties which would render it collectable after the separation of one ion and before the second ion is recovered is used as a marker.  Specific examples are the treatment of brucine and strychnine, with a sulpholauric acid; picric acid with a dodecyl quaternary ammonium chloride; gallic acid with an N - alkyltrimethylenediamine derived from coconut fatty acids; sodium tetraphenyl boron with N-primary amine derivatives of coconut fatty acids; choline chloride with dodecyl benzene sulphonate; abietic acid with didodecyl dimethyl ammonium chloride; 2-acetyl-4-bromo-1-naphthol with ethyl xanthate; and 4-(2-furyl)-3-buten-2-one with lauryl picolinium chloride.ALSO:Non-proteinacous organic ions are removed from solution by contacting the ions with an ionic, organic reagent to form an insoluble reaction product and thereafter separating the insoluble reaction product from the solution, preferably by frothing it as the scum with various gases.  Useful gaseous materials are methane, ethane, butane, halogenerated hydrocarbons, carbon dioxide, nitrogen and argon.  The ionic, organic reagents used are the surface active collectors utilized in ore flotation procedures with at least one hydrophilic group and at least one aerophilic group and an electrical charge which is opposite to the ion which it is desired to remove from solution.  Many examples are given of such collectors.  Amongst the compounds which may be treated by this process are:-2-amino-1-hydroxyanthraquinone and eosin.  Various organic compounds can be separated by utilizing different solubilities in various solvents and at particular pH's.  If the ion to be collected exists as a cation the collectors which are for the most part salts of weak acids can be made into stronger acids by addings electronegative substituents or can be long chain alkyl sulphonates. When the insoluble reaction products being recovered as a froth are about the same colour a small amount of an organic dye which has properties which would render it collectable after the separation of one ion and before the second ion is recovered is used as a marker. Specific examples are the treatment with lauryl pyridinium chloride for the collection of Congo red dye, methyl orange, Lauth's violet, methyl yellow or azoalizarine yellow, the separation of methyl orange and Congo red, the separation of Congo red, methyl orange, phenolphthalein and Lauth's violet, the separation of potassium indigo sulfonate, Congo red, methyl orange, bromphenol blue and phenolphthalein, naphthol green, acid leather brown, EGB; methyl violet, methyl yellow, azoalizarine yellow, Lauth's violet, are treated with a sulpholauric acid; methyl orange is treated with lauryl amine chloride, gallic acid with an N-alkyltrimethylenediamine derived from coconut fatty acids, acid leather brown EGB with a dodecyl quaternary ammonium chloride.ALSO:Non-proteinaceous organic ions are removed from solution by contacting the ions with an ionic, organic reagent to form an insoluble reaction product and thereafter separating the insoluble reaction product from the solution, preferably by frothing it as the scum with various gases.  Useful gaseous materials are methane, ethane, butane, halogenerated hydrocarbons, carbon dioxide, nitrogen and argon.  The ionic, organic reagents used are the surface active collectors utilised in ore flotation procedures with at least one hydrophilic group and at least one aerophilic group and an electrical charge which is opposite to the ion which it is desired to remove from solution.  Many examples are given of such collectors.  Various organic compounds can be separated by utilising different solubilities in various solvents and at particular pH's.  If the ion to be collected exists as a cation the collectors which are for the most part salts of weak acids can be made into stronger acids by adding electronegative substituents or can be long chain alkyl sulphonates.  When the insoluble reaction products being recovered as a froth are about the same colour a small amount of an organic dye which has properties which would render it collectable after the separation of one ion and before the second ion is recovered is used as a marker.