CEYHAN, Ayhan Abdullah Selçuk Üniversitesi Mühendislik, Alâeddin Keykubat Kampüsü - Fakültesi Kimya - Mühendisliği Bölümü, TÜRKİYE , BAYTAR, Orhan Selçuk Üniversitesi, Alâeddin Keykubat Kampüsü - Mühendislik Fakültesi - Kimya Mühendisliği Bölümü, TÜRKİYE , GÜLCE, Ahmet Selçuk Üniversitesi, Alâeddin Keykubat Kampüsü - Mühendislik Fakültesi - Kimya Mühendisliği Bölümü, TÜRKİYE

EFFECT OF HEAVY METALS IMPURITIES UPON NUCLEATION KINETICS OF NaCl

16740

In this study, effects of heavy metal’s impurities (Pb^2+, Fe^3+) on nucleation kinetics of NaCl in crystallization medium were investigated. The tests were conducted by taking into account industrial production conditions of the salt (NaCl) and taking measurements of the setting period of the solution. In the study, where the tests were carried out in both pure medium and in the presence of impurities, it was observed that the stirring process increases the nucleation rate of NaCl. It was found that heavy metal impurities significantly reduce the nucleation rate and that this effect becomes more vivid with lead ions impurities (Pb^2+). The study also found that the presence of seed crystal increases the nucleation rate. However; it was also clear that the negative effects imposed by the heavy metal impurities on nucleation still kept persisting.

95

NaCl , crystallization , nucleation , induction time , seed crystals

Journal Of The Faculty Of Engineering an‎d Architecture Of Gazi University

103