TY  - JOUR
T1  - Removal of Major Impurties (Ca-Mg) of Brine with Chemical Treatment Process in the Salt Sector
TT  - Removal of Major Impurties (Ca-Mg) of Brine with Chemical Treatment Process in the Salt Sector
AU  - Bayram, İsmail
PY  - 2018
DA  - December
Y2  - 2018
JF  - International Scientific and Vocational Studies Journal
JO  - ISVOS
PB  - Umut SARAY
WT  - DergiPark
SN  - 2618-5938
SP  - 57
EP  - 66
VL  - 2
IS  - 2
LA  - tr
AB  - The operation of salt minerals dates back hundreds ofyears. Salt is produced from salt rich sources through salts today. The salt(brine) obtained from existing salt sources is not in the desired purity. Forthis purpose, purification of the brine should be carried out to removeunwanted impurities. Brine (raw salt) also contains impurities that are solubleand insoluble except NaCl. 94-96% of the brine obtained from the salt lakecontains NaCl. The remaining 4-6% are MgCl2, MgSO4, CaCl2 and other traceamounts. All of these substances are called solubility and insolubleimpurities. These impurities are magnesium, calcium and sulfate .Calciumaccumulation causes crust formation in the circulation line, especially heatexchangers. For this reason, heat transfer and circulation effiency decrease.The impurities from the dissolved raw salt (Ca+2, Mg +2 etc.) should be removedby the purification process. Settling tests were carried out in brinepurification system. As the experimental results obtained, the magnesium andcalcium from the major impurities in the brine were separately and coherentlyremoved. NaOH was used to precipitate the magnesium and the dynamic run-out wasdetermined to be optimum pH = 11. Na2CO3 was used to precipitate the calcium fromthe other major impurities in the brine. As a result of dynamic experiments,optimum precipitation pH was set at 9,5.
KW  - raw salt (brine)
KW  - chemical treatment
KW  - pH adjustment
N2  - The operation of salt minerals dates back hundreds ofyears. Salt is produced from salt rich sources through salts today. The salt(brine) obtained from existing salt sources is not in the desired purity. Forthis purpose, purification of the brine should be carried out to removeunwanted impurities. Brine (raw salt) also contains impurities that are solubleand insoluble except NaCl. 94-96% of the brine obtained from the salt lakecontains NaCl. The remaining 4-6% are MgCl2, MgSO4, CaCl2 and other traceamounts. All of these substances are called solubility and insolubleimpurities. These impurities are magnesium, calcium and sulfate .Calciumaccumulation causes crust formation in the circulation line, especially heatexchangers. For this reason, heat transfer and circulation effiency decrease.The impurities from the dissolved raw salt (Ca+2, Mg +2 etc.) should be removedby the purification process. Settling tests were carried out in brinepurification system. As the experimental results obtained, the magnesium andcalcium from the major impurities in the brine were separately and coherentlyremoved. NaOH was used to precipitate the magnesium and the dynamic run-out wasdetermined to be optimum pH = 11. Na2CO3 was used to precipitate the calcium fromthe other major impurities in the brine. As a result of dynamic experiments,optimum precipitation pH was set at 9,5.
CR  - [1] Kılıç, Ö., Kılıç A.M. ve Uyanık Z., ‘‘ Tuz Gölü’nden Tuz Yan Ürünleri Üretimi/Araştırılması’’, s. 321, 2001.
CR  - [2] Ergin, Z. ,Tuzun üretim Teknolojisi ve İnsan Sağlığındaki Yeri, 1988.
CR  - [3] GEA-Messo-Presentation, 2012.
CR  - [4] V.M. Venkatesh Mannar, ‘‘Design of Seawater Intake Facilities for Solar Salt Plants, Proceedings’’, Sixth International Symposium on Salt, vol. II, p. 289,1983.
CR  - [5] Avcı, S.,‘‘Ekonomik Coğrafya Açısından Önemli Bir Maden:Tuz’’, Coğrafya Dergisi, sayı 11, s.21-45, İstanbul, 2003.
CR  - [6] I.F. White and T.F. O’Brien, ‘‘Secondary Brine Treatment: Ion-Exchange Purification of Brine’’. Modern Chlor-Alkali Technology, vol.4, p.271, 1990.
UR  - https://dergipark.org.tr/tr/pub/bilmes/issue//478651
L1  - https://dergipark.org.tr/tr/download/article-file/615090
ER  -