Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (8): 63-65.doi: 10.11962/1006-4990.2019-0482

• Industrial Techniques • Previous Articles     Next Articles

Synthesis and application of sodium carbonate solution crystallization inhibitor

Ma Yuming()   

  1. CenerTech Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China
  • Received:2020-02-16 Online:2020-08-10 Published:2020-08-12

Abstract:

A sodium carbonate crystal inhibitor ELYZ-09 was synthesized with ethylenediamine,hydroxyacetonitrile and isopropanol as raw materials.The effects of temperature and stirring rate on the crystal inhibition were studied.The effect of inhibitor was best when the synthesis temperature was 70 ℃ and the stirring rate was 420 r/min. Applied experiment was made with crystalline inhibitor,when the dosage of sodium carbonate inhibitor ELYZ-09 not less than 0.12%,less crystals were precipitated when the 20%(mass fraction) sodium carbonate solution cooled to 10 ℃,inhibiting crystallization rate to 100 %,at the same time,solution pH and carbonate ions content did not change significantly.

Key words: sodium carbonate solution, crystallization, inhibitor

CLC Number: