The role of the grain size of chromic ore in the sodium chromate production

• Autorzy: Kowalski Z. , Fela K. , Wieczorek-Ciurowa K.

Warianty tytułu

PL

Wpływ uziarnienia rudy chromowej na proces wytwarzania chromianu sodu

• Języki publikacji: EN

Abstrakty

EN

The role of the grain size of the chromic ore in the sodium chromate production with chromic mud recycling was studied. Raw material consumption, amounts of waste and the process efficiency were determined. It was shown that a decrease in the chromic ore grain size was more essential than the content of chromium in raw materials. The decrease in the grain size of chromic ore led to the decrease in raw material consumption and the amounts of disposed chromic waste, thus increasing the process efficiency and productivity.

Słowa kluczowe

EN

sodium chromate; chromic ore; graining; optimisation

PL

chromian sodu; ruda chromowa; uziarnienie; optymalizacja

• Wydawca: Centrum Materiałów Polimerowych i Węglowych PAN
• Czasopismo: Polish Journal of Applied Chemistry
• Rocznik: 2002
• Tom: Vol. 46, nr 2
• Strony: 121--133
• Opis fizyczny: Bibliogr. 25 poz., tabl 4, rys. 3

Twórcy

autor

Kowalski Z.

• Institute of Inorganic Chemistry and Technology, Cracow University of Technology, 24, Warszawska,31-155 Cracow, Poland

autor

Fela K.

• Institute of Inorganic Chemistry and Technology, Cracow University of Technology, 24, Warszawska,31-155 Cracow, Poland

autor

Wieczorek-Ciurowa K.

• Institute of Inorganic Chemistry and Technology, Cracow University of Technology, 24, Warszawska,31-155 Cracow, Poland

Bibliografia

• [1] Z. KOWALSKI and B. WALAWSKA, Utilization of chrome tannery wastes in the sodium chromate production process, PJ. Appl. Chem., XLI, 385 (1997).
• [2] Z. KOWALSKI,A. JAROSIŃSKI and C. MAZANEK, Technological aspect of chromic waste utilization in chromium compounds production processes, SECOTEX 99, 5 th European Conference on Ecotoxicology and Environmental Safety GSF -National Research Center, Neuherberg/Munich, Germany, 15-17.03. 1999.
• [3] Z. KOWALSKI and C. MAZANEK, Sodium chromate- material flow analysis and technology assessment, J. Cleaner Prod., 6, 135 (1998).
• [4] B. WALAWSKA and Z. KOWALSKI, Selection of Technological Variants of Producing Sodium Chromate(VI) with the Use of Chromic Waste Materials, P. J. Environ. Stud., 9(2), 103 (2000).
• [5] B. WALAWSKA and Z. KOWALSKI, Studies on utilization of chromic waste for the production of sodium chromate(VI), P. J. Appl. Chem., 43(3-4),101 (1999).
• [6] Z. KOWALSKI and M. GOLLINGER, Environmental evaluation of different variants of the chromic compound production model using chromic waste, 14th Int. Congress CHISA, Praha, Czech Republic 25-31.08.2000.
• [7] B. WALAWSKA and Z. KOWALSKI, Model of technological alternatives of production of sodium chromate(VI) with the use of chromic wastes, Waste Manag., 20, 711 (2000).
• [8] B. WALAWSKA and Z. KOWALSKI, Studies on utilization of chrome tannery waste for the production of sodium chromate(VJ), Ind. Eng. Chem. Res., 40(3),826 (2001).
• [9] Z. KOWALSKI,A. JAROSIŃSKI and C. MAZANEK, Integrated model of chromic waste utilization in the chromium compound production, Conference New trends in mineral processing III, VCEB- TV Ostrava, Czech Republic, 1999.
• [10] Z. KOWALSKI and J. KOTOWICZ, Sposób produkcji chromianu sodu, Polish Patent Application P.331 ,267, 1999.
• [11] Z. KOWALSKI, W. GAJOS and J. KOTOWICZ, Sposób utylizacji odpadów zawierających uwodnione tlenki chromu, Polish Patent Application P.331, 266, 1999.
• [12] Z. KOWALSKI, Czystsze produkcje jako strategia ochrony środowiska naturalnego, Biuletyn Komitetu Inżynierii Środowiska PAN, 3, (1998).
• [13] Z. KOWALSKI, C. MAZANEK and J. CHOLEWA, Projekt celowy C-I/137/98, Politechnika Krakowska, unpublished, 2000.
• [14] M. GOLLINGER,Z. KOWALSKI and C. MAZANEK, Management system of chrome solid wastes realized in Poland. Energy, Environment and Technological innovation, 4th Int. Conf., Universita Di Roma "La Sapienza", Rome, Italy, 19-24.09.1999.
• [15] M. GOLLINGER and Z. KOWALSKI, Evaluation of the technological quality for the alternatives of the sodium chromate process with chromic waste recycling, 14th lnt. Congress CHISA, Praha, Czech Republic, 25-31.08.2000.
• [16] B. WALAWSKA and Z. KOWALSKI, Ecological evaluation of the effects of using chromic waste in production of chromium compounds, J. Cleaner Prod., 9, 219 (2001).
• [17] Z. KOWALSK I and C. MAZANEK, Evaluation for the options of production process modernization on the example of the sodium chromate process, Int. Conf. "New Trends in Mineral Processing IV" VSB - TU Ostrava, Czech Republic 28.6-30.6.2001.
• [18] Encyclopedia of Chemical Technology, Chromium Compound; Wiley J., New York, 1994; Vo1.6, p. 275.
• [19] J. NRIAGU and E. NIEBOER, Chromium in natural and human environment; John Wiley & Son, New York, 1995.
• [20] T. AWIERBUCH and P. PAWŁOW, Tiechnologija sojedinienija chroma, Chimija, Leningrad, USSR 1973.
• [21] K. FELA, P raca doktorska. Politechnika Krakowska, 2001. [
• [22] Z. KOWALSKI, Chromic ore properties simplifying their processing, Prace Naukowe Instytutu Górnictwa Politechniki Wrocławskiej, 95(31), 53 (2001).
• [23] Z. KOWALSKI, Strategia rozwoju ZCh Alwernia, unpublished, 2001.
• [24] J. MENDEL, Fuzzy logic systems for engineering, Proceedings of the IEEE, 83(3), 345 (1995).
• [25] M. BAŁAZIŃSKI, Logika rozmyta, Biuletyn SIP, 1(1-5), (1997).