Reduction of environmental pollution by improvement of sulphate technology of titanium dioxide production

• Autorzy: Jabłoński M. , Przepiera A.
• Języki publikacji: EN

Abstrakty

EN

In the sulphate technology of titanium dioxide production titania raw materials as titania slag or ilmenite are digested by the reaction with concentrated sulphuric acid. This batch process occurs at high temperature and leads to intensive emission of water vapour, sulphuric acid and sulphur dioxide. Large fluctuations of the stream of emitted gases are the reasons of difficulties with the reduction of sulphur dioxide emission in this technology. The forming and emission of sulphur dioxide is a result of reducing properties of titania slag containing titanium (III) oxide. The high temperature of the reaction and reducing the proprieties of titanium slag are the reasons of high emission of sulphur dioxide. A much lower emission of sulphur dioxide occurs in the reaction of ilmenite with sulphuric acid, however, a smaller content of titania in this material needs greater quantity of feedstock in comparison to titanium slag. This paper shows the possibility of reducing the emission of sulphur dioxide by the digestion of the mixture of titania slag and ilmenite.

Słowa kluczowe

EN

sulphate technology of titanium dioxide production; emission of sulphur dioxide

PL

siarczanowa technologia produkcji dwutlenku tytanu; emisja dwutlenku siarki

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2001
• Tom: Vol. 3, nr 3
• Strony: 1--2
• Opis fizyczny: Bibliogr. 2 poz., tab., wykr.

Twórcy

autor

Jabłoński M.

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

autor

Przepiera A.

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

Bibliografia

• (1) Grey I. E., Stranger R., Structure detemination of aTiOSO4 from powder X-ray diffraction data, J. Solid State Chem., 1992, 101, 331 - 339,
• (2) Przepiera A., Jabłoński M., Wiśniewski M., Study of kinetics of reaction of titanium raw materials with sulphuric acid, J. Therm. Anal., 1993, 40, 1341 - 1345.