葡萄糖酸钙真空降温结晶工艺

doi:10.3976/j.issn.1002-4026.2021.02.010

Shandong Science ›› 2021, Vol. 34 ›› Issue (2): 75-80.doi: 10.3976/j.issn.1002-4026.2021.02.010

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Vacuum cooling crystallization process of calcium gluconate

ZHAO Gai-ju ¹, LIANG Xi², YUN Dong-ling ¹, GENG Wen-guang ¹,WANG Lu-yuan¹, SUN Rong-feng^1*

1. Energy Institute，Qilu University of Technology(Shandong Academy of Sciences)，Jinan 250014，China；2. School of Energy and Power Engineering, Shandong University，Jinan 250061，China

Received:2020-04-02 Online:2021-04-13 Published:2021-04-14

Abstract

Abstract: With calcium gluconate as the research object, a vacuum cooling crystallization experiment was performed to investigate the effects of time, temperature, stirring speed, and vacuum degree on the vacuum cooling crystallization of calcium gluconate. Results show that the factors affecting the crystallization rate of calcium gluconate are listed in the order of desceding degree of impact as vacuum degree, crystallization temperature, and stirring speed, among which the vacuum degree is a significant factor with P<0.05. The optimal process conditions for vacuum cooling crystallization of calcium gluconate are as follows: crystallization temperature is 50 °C, vacuum degree is 0.095 MPa, and stirring speed is 100 r/min. These results provide theoretical basis for technology and device development of calcium gluconate vacuum flash continuous evaporation crystallization.

Key words: calcium gluconate, vacuum cooling crystallization；crystallization temperature;stiring speed

CLC Number:

TQ026.5

ZHAO Gai-ju , LIANG Xi, YUN Dong-ling , GENG Wen-guang , WANG Lu-yuan, SUN Rong-feng . Vacuum cooling crystallization process of calcium gluconate[J].Shandong Science, 2021, 34(2): 75-80.

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Vacuum cooling crystallization process of calcium gluconate

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