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Song Kaiping, ‚Lu Zhongyuan. Preparation of Phosphate Modifiers and their Application in Super-fine CaCO3 Production[J]. Development and Application of Materials, 2003, 18(6): 27-30. DOI: 10.19515/j.cnki.1003-1545.2003.06.008
Citation: Song Kaiping, ‚Lu Zhongyuan. Preparation of Phosphate Modifiers and their Application in Super-fine CaCO3 Production[J]. Development and Application of Materials, 2003, 18(6): 27-30. DOI: 10.19515/j.cnki.1003-1545.2003.06.008
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Preparation of Phosphate Modifiers and their Application in Super-fine CaCO3 Production

  • Southwest University of Science and Technology, Mianyang 621002, China

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  • Received Date: March 10, 2003
  • Available Online: June 16, 2024
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  • Thirteen kinds of phosphate modifiers are prepared by esterification of P2O5 with different ROH and neutra-lization with KOH solution and are blended with some agents in different ratio to improve the surface properties of super-fine CaCO3.It is manifested in experiments that the modifier phosphodiester is superior to phosphomonoester,and the phosphodiester containing ether chain (AEO-7) and C4H9OC2H4OH are the best match in surface modification of CaCO3.The particle of CaCO3 with grain size d(0.5)＜0.1μm could be obtained with proper application of the phospate modifiers and agents in optimum ratio.
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