화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.9, 2756-2760, September, 2016
DOI10.1007/s11814-016-0093-7  Export Citation
A novel rapid mist spray technique for synthesis of single phase precipitated calcium carbonate using solid-liquid-gas process
Jimoh Abdullateef Onimisi1, 2, Roniza Ismail1, 3, Kamar Shah Ariffin1, 3, †, Norlia Baharun1, 3, and Hashim Bin Hussin1, 3
  • 1School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
  • 2Department of Geology, Federal University Lokoja, Nigeria
  • 3, Malaysia
E-mail:
Various techniques and approaches have been designed to synthesize precipitated calcium carbonate. We used a continuous sprayed-mist technique that induced spontaneous precipitation reaction of the droplets with the higher surface area when in contact with the gas. The effects of optimum reactant concentration, gas flow rate, and reactant feeding rate including reaction conditions were investigated. The effectiveness of the techniques was scrutinized by analyzing the resultant PCC characteristics, especially the particle phase morphology and size distribution using XRD, FTIR, and SEM. The variation of initial concentration of milk of lime with different gas flow rate was studied. Experimental results, as well as XRD and FTIR, indicated that all the products produced were favorable for the formation of calcite. SEM revealed that the morphologies of PCC were all rhombohedral and tended to adhere to each other (twinning). It was found that production of PCC by using spray-mist method is suitable for lower initial concentration of Ca(OH)2 and higher gas flow rate only.
Keywords:Precipitated Calcium Carbonate (PCC);Spray Mist;Continuous;Calcite;Gas-flow
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