TITANIUM COAGULANT FOR PURIFICATION OF NATURAL AND WASTE WATERS, METHOD FOR ITS PRODUCTION AND USE IN BOTTOM WATER AND FLOW-DIVERTING TECHNOLOGIES Russian patent published in 2022 - IPC C01G23/53 C01G23/08 C02F1/52 C02F103/04 

FIELD: drinking water purification.

SUBSTANCE: invention relates to the field of purification of drinking water, domestic purposes, natural water, industrial, circulating and domestic wastewater, incl. treatment of boiler-quality water, feed and circulating water for thermal power plants, as well as application in flow diverting technologies and technologies for leveling the injectivity profile to enhance oil recovery, both independently and as, among other things, a component in the composition of gel-forming reagents. Proposed titanium coagulant for purification and disinfection of natural and waste water containing titanium dioxide, silicon dioxide, aluminum oxide and water, which contains these components in the following ratio, wt.%: titanium dioxide - 0.8-5.3; silicon dioxide - 0.08-0.40; aluminum oxide - 23.4-30.73; the rest is water. The method for obtaining titanium coagulant is carried out as follows. The mixture of coke and pitch enters the drying drum 1, after which the flotation concentrate enters the grinding stage in the hammer mill 2 and then into the rotation furnace 3, after which the calcined concentrate enters the ball mill 4 for grinding. After that, the crushed concentrate, coke and pitch enter the mixer 5, in which they are mixed with a binder component. After the end of this process, the mixture enters the briquetting press 6, in which the mixture is molded in the form of briquettes, which are loaded into kubels and sent to the calcination stage in the pit coking furnace 7. Next, the burnt briquettes enter the chlorination stage in the chlorinator 8. Titanium tetrachloride formed as a result of chemical transformations accumulates in tank 9. Titanium tetrachloride is sent to reactor 10 by pump 17, in which, as a result of hydrolysis, an aqueous solution of titanium tetrachloride is formed. The solution is sent by pump 18 to reactor 11, which contains a pre-prepared aqueous suspension of aluminum hydroxide obtained by mixing water from tank 13 and powdered aluminum hydroxide from dispensing station 12. Hydrochloric acid from vessel 14 is added to the resulting mixture. The reaction mixture is subjected to heat treatment. The resulting paste of the resulting titanium coagulant is sent to the drying stage in the drying plant 15, from where it is supplied in the form of a dry powder to the titanium coagulant packing station 16.

EFFECT: improving the efficiency and quality of treatment and disinfection of natural circulating, domestic and industrial wastewater not below the relevant established standards, as well as reducing the cost of the entire technological cycle, including through the use of a lower dosage of coagulant, while at the same time increasing the efficiency and effectiveness of treatment due to the content in a new coagulant with a smaller proportion of titanium and silicon dioxide and a greater proportion of water-soluble compounds, included in the mass during calcination, taking into account their optimal redistribution and reorientation, which ensures an increase in the efficiency of the reagent due to an increase in its productivity with a decrease in the insoluble part, and in general, an increase in the efficiency and productivity of cleaning.

2 cl, 1 dwg, 11 tbl, 8 ex