METHOD OF PREPARING HYDROSOLS OF HYDRATED METAL OXIDES FROM SOLUTIONS OF SALTS THEREOF

FIELD: agriculture. ^ SUBSTANCE: invention relates to methods for preparing soil improvement-destined solutions. Method of invention comprises ion exchange-mediated substitution of hydroxyl ions for salt anions in aqueous solution, which process is carried out between container with salt solution an...

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Hauptverfasser:	FEDOTOV G.N, MIKUS A.A, ZHUKOV D.V, TRET'JAKOV JU.D
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: agriculture. ^ SUBSTANCE: invention relates to methods for preparing soil improvement-destined solutions. Method of invention comprises ion exchange-mediated substitution of hydroxyl ions for salt anions in aqueous solution, which process is carried out between container with salt solution and container with alkali solution communicating through anion-exchange membrane. Ion exchange process is promoted by electrolysis when placing electrodes in alkali solution containers and commutating polarities of electrodes every 5-60 sec. ^ EFFECT: enabled large-scale preparation of stable metal oxide hydrosols. ^ 10 ex