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3 Polish Journal of Chemical Technology

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Utilization of the post-filtration lye from the SCS method of soda production

Trypuć M., Drużyński S., Kiełkowska U., Mazurek K.

Polish Journal of Chemical Technology

2007

Vol. 9, nr 4

59-62

The mutual solubility of salts in the NaVO3-NaNO3-H2O system was investigated at 293 - 323 K temperature range by the method of isothermal saturation of solutions. A fragment of the solubility polytherm for that system was plotted, based on the obtained data. The investigated system is a part of the quaternary NH4NO3-NaVO3-NH4VO3-NaNO3 system, and it is necessary for plotting the solubility isotherm as a planar projection according to Janecke, since it defines one edge of its square. Knowledge of the isotherm for that quaternary system is necessary to determine the optimal utilization conditions for the post-filtration lye, formed during the soda production from NaNO3 by the Solvay method, using NaVO3.

Manufacture of calcium formate from sodium formate

Trybuła S. W., Terelak K. L.

Polish Journal of Chemical Technology

2003

Vol. 5, nr 3

17-18

The concept of calcium formate process with the use of a double exchange reaction between sodium formate and calcium nitrate has been proposed. In order to choose the optimum technological version of that process, the preliminary research work was performed.

The utilization of the waste sodium nitrate to a new mineral fertilizers production

Piwowarski S., Biskupski A., Kozioł T., Świtalski R., Prokuski F., Malinowski P.

Polish Journal of Chemical Technology

2002

Vol. 4, nr 4

35-39

During the processes of various types of catalysts production, waste sodium nitrate solutions are generated. Until recently they were utilized during the production process of potassium nitrate. Because new and cheaper methods of this substance production are developed, Zaklady Azotowe w Tarnowie-Moscicach S.A. are forced to develop another method of waste sodium nitrate solutions utilization. As a result of the performed research it has been found out that they may be used during the saltpetre fertilizers production.