The analysis of possibility of sulphuric acid recycling in sulphate technology of titanium dioxide production

• Autorzy: Przepiera A. , Przepiera K.

Warianty tytułu

PL

Analiza możliwości recyrkulacji kwasu siarkowego w siarczanowej technologii produkcji dwutlenku tytanu

• Języki publikacji: EN

Abstrakty

EN

Titanium dioxide sulphate technology generates large amount of waste sulphuric acid and hydrated iron (II) sulphate (copperas). This paper shows the possibility of recycling spent sulphuric acid in titanium dioxide production after its two stage of evaporation under reduced pressure with the inter stage separation of precipitated salts in order to remove transition metals salts consisting of the contamination of the spent sulphuric acid. The discussed process has been tested in the industrial conditions. The described process saves principal conditions for sulphuric acid recycling in titanium dioxide sulphate technology.

Słowa kluczowe

EN

titanium dioxide; sulphate technology; waste sulphuric acid; method of utilization and recycling

PL

dwutlenek tytanu; technologia siarczanowa; odpadowy kwas siarkowy

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2001
• Tom: Vol. 3, nr 4
• Strony: 29--33
• Opis fizyczny: Bibliogr. 5 poz., tab., wykr.

Twórcy

autor

Przepiera A.

• Technical University of Szczecin, Institute of Chemistry and Environmental Protection, Al Piastów 42, 71-065 Szczecin

autor

Przepiera K.

• Technical University of Szczecin, Institute of Chemistry and Environmental Protection, Al Piastów 42, 71-065 Szczecin

Bibliografia

• (1) Use and Disposal of Wastes from Phosphoric Acid and Titanium Dioxide Production, Chapter II. Use and Disposal of Wastes from Titanium Dioxide Production, ECE/CHEM/65, Economic Commission for Europe, Organization of United Nations, Geneva-New York 1988, 61 - 141.
• (2) Przepiera A., Równowaga rozpuszczalności soli w roztworach elektrolitów. Układy typu MeS04-H2S04-H20, Thesis, Prace Naukowe Politechniki Szczecińskiej Nr 551, Szczecin 1999, 259 -297.
• (3) Przepiera A., Przepiera K., Jabłoński M., Wiśniewski M., Determination of the Distribution Coefficients of Transition Metals Sulphates at Crystallization of Iron (II) Sulphate Monohydrate from Aqueous Sulphuric Acid Solutions, Bull. Polish. Acad. Scienc., Chemistry, 1992, 40, 3, 262 - 266.
• (4) Przepiera A., Wiśniewski M., Jabłoński M., Dąbrowski W., Integral Heat of the Solution and Activity Coefficients of Transition Metals Sulphates in the Sulphuric Acid Solution, Bull. Polish. Acad. Scienc, Chemistry, 1992, 40, 3, 253 - 259.
• (5) Przepiera A., Wiśniewski M., Dąbrowski W., Jabłoński M., Enthalpy of Solution and Effect of Temperature on Activity Coefficients in MSO4-H2SO4-H2O System, J. Therm. Anal., 1993, 40, 1139 - 1143.