Fluoroammonium method for processing of cake from leaching of titanium-magnesium production sludge

A. Yessengaziyev; A. Ultarakova; P. Burns

doi:10.31643/2022/6445.08

Authors

A. Yessengaziyev Institute of Metallurgy and Ore Beneficiation JSC
A. Ultarakova Institute of Metallurgy and Ore Beneficiation JSC
P. Burns Center for Sustainable Energy

DOI:

https://doi.org/10.31643/2022/6445.08

Keywords:

cake, sublimates, cinder, fluoroammonium processing, alkaline hydrolysis, titanium dioxide.

Abstract

We present the results of the physical and chemical properties of cake from nitric-acid leaching of titanium production sludge. It was found that all silicon in the cake is in the form of quartz, albite, sillimanite, sodium aluminosilicate. In total, these minerals make up the majority of the cake 60.24%. Titanium is presented in the form of rutile, titanium aluminum oxide, which in total is 35.56%. Iron is part of sillimanite and hematite, the total content of which is about 4.2%. The optimal parameters of fluoroammonium processing of cake were determined: silicon distillation into sublimates at 300°С for 6 hours, sublimation of titanium in the form of titanium tetrafluoride at 800°С for 2 hours. The process of alkaline hydrolysis of sublimates of fluoride compounds and cinder was carried out. Purification of impurities and calcination of hydrated titanium dioxide were carried out. The resulting titanium and silicon dioxide products contain: 96.2% TiO₂, 88 % SiО₂, respectively; a niobium-containing intermediate product with a content of 11.6 % Nb₂O₅ was also obtained.

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Author Biographies

A. Yessengaziyev, Institute of Metallurgy and Ore Beneficiation JSC

Ph.D. candidate, Almaty, Kazakhstan.

A. Ultarakova, Institute of Metallurgy and Ore Beneficiation JSC

Candidate of Technical Sciences, Almaty, Kazakhstan.

P. Burns, Center for Sustainable Energy

Professor of Civil & Environmental Engineering & Earth Sciences, Director, Center for Sustainable Energy at Notre Dame, South Bend, USA.

References

Chervonyy IF, Listopad DA, IvashchenkoVI, Sorokina LV. O fiziko-khimicheskikh zakonomernostyakh obrazovaniya titanovoy gubki[On the physicochemical laws of theformation of a titanium sponge]. Scientific works "Donetsk National Technical University".Donetsk, Metallurgiya. 2008;141(10):37-46. (in Russ.).

Teploukhov AS. Predotvrashcheniye zagryazneniya vodnykh ob"yektov otkhodami titano-magniyevogo proizvodstva Complex Use of Mineral Resources. 2022;320(1) [Prevention of pollution of water bodies with wastes of titanium-magnesium production]. Abstract dissertation. Cand. tech. sciences. 2005, 143. (in Russ.).

Kudryavskiy YuP. Utilizatsiya zheleza, khroma i margantsa pri kompleksnoy pererabotke otkhodov titanovogo proizvodstva[Utilization of iron, chromium and manganese in the complex processing of titanium production waste]. Tsvetnyye metally=Non-ferrous metals.1998;4:58-62. (in Russ.).

Pat. 2058404 RU. Sposob pererabotki otrabotannogo rasplava titanovykh khloratorov[Method for processing waste melt of titanium chlorinators]. Kudryavsky Yu.P., Freidlina R.G., Firstov G.A., Rzyankin S.A., Bondarev E.I., Ushakova N.L. Opubl. 20.04.1996,4. (in Russ.).

Ultarakova A, Kenzhaliyev B, Onayev M, Yessengaziyev A, Kasymzhanov K. Investigations of waste sludge of titanium production and its leaching by nitric acid. 19th International Multidisciplinary Scientific Geoconference & Expo SGEM 2019, Albena, 2019. 861–868.

Medkov MA, Krysenko GF, Epov DG. Gidrodiftorid ammoniya-perspektivnyy reagent dlya kompleksnoy pererabotki syr'ya[Ammonium hydrodifluoride is a promising reagent for complex processing of raw materials]. Vestnik Dal'nevostochnogo otdeleniya Rossiyskoy akademii nauk = Vestnik of Far Eastern Branch of Russian Academy of Sciences.2011;5:60-65. (in Russ.).

Rakov EG. Ftoridy ammoniya[Ammonium fluorides]. Moscow: VINITI, (Results of science and technology; ser. Inorganic chemistry; V.15).1988, 154. (in Russ.).

Rimkevich VS, Pushkin AA, Malovitskiy YuN, Yeranskaya TYu, Girenko IV. Kompleksnaya pererabotka kaolinovykh kontsentratov sposobami ftoridnoy metallurgii[Complex processing of kaolin concentrates by methods of fluoride metallurgy].Izvestiya Vuzov.Tsvetnaya Metallurgiy = Izvestiya. Non-Ferrous Metallurgy.2010;2:29-36. (in Russ.).

Nasekan YuP, Chervonyy IF, Kolyada VP, Mezentseva YeV. O gidrokhimicheskom vskrytii kremnezema iz kaolina ftoridnym metodom [About hydrochemical opening of silica from kaolin by the fluoride method]. Metalurhiya (Naukovi pratsi ZDIA) Zaporizhzhya = Metallurgy (Scientific works of ZDIA) Zaporozhye. 2011;23:30-36. (in Russ.).

Pat.2365647RU. Sposob pererabotki titansoderzhashchego syr'ya[Method for processing titanium-containing raw materials]. AndreyevA.A., D'yachenko A.N. Opubl. 27.08.2009,24.(in Russ.).

Yessengaziyev A, Ultarakova A, Kenzhaliyev B, Peter C Burns. Research of the leaching process of industrial waste of titaniumproduction with nitric acid. Journal of chemical technology and metallurgy, Bulgaria.2019;5:1061-1071.

Dem'yanova LP, Buynovskiy AS, Rimkevich VS, Malovitskiy YuN. Ratsional'naya pererabotka kvartssoderzhashchego syr'ya ftoridnym sposobom(Rational processing of quartz-containing raw materials by the fluoride method]. Izvestiya Tomskogo politekhnicheskogo universiteta =Bulletin of the Tomsk Polytechnic University. 2010;3:77-81. (in Russ.).

Andreyev AA, D'yachenko AN, Kraydenko RI. Termodinamicheskiye issledovaniya vzaimodeystviya ftorida i khlorida ammoniya s komponentami tekhnogennogo syr'ya[Thermodynamic studies of the interaction of fluoride and ammonium chloride with components of technogenic raw materials]. II-oy mezhdunar. sibirskiy seminar «Sovremennyye neorganicheskiye ftoridy».[II-nd int. Siberian seminar "Modern inorganic fluorides"]. Tomsk, 2006. 11–14. (in Russ.).

Andreyev AA. Razrabotka ftoridnoy tekhnologii polucheniya pigmentnogo dioksida titana iz il'menita [Development of a fluoride technology for producing pigment titanium dioxide from ilmenite]. Tomsk, Diss., 2008, 140. (in Russ.).