Research on Refining Process of Synthetic Folic Acid

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This article is mainly to investigate the factors on the refining process of folic acid. The appropriate refining process (complex refining combined acid followed by alkali treatment) was proposed. The synthetic crude folic acid was treated firstly with sulfuric acid with the concentration of 30%, then re-purified with sodium hydroxide to give folic acid with the purity of 97% and total yield of 51.3%. Higher temperature (80-100°C) is desired for the crystallization of folic acid. The product treated in this process meets the requirements of CP, USP and BP.

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74-77

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July 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] E. Milne. Maternal folate and other vitamin supplementation during pregnancy and risk of acute lymphoblastic leukemia in the off spring. International Journal of Cancer, 2009: 16.

Google Scholar

[2] M. Ebbing, K.H. Bonaa, O. Nygard. Cancer incidence and mortality after treatment with folic acid and vitamin B12. Journal of the American Medical Association, 2009, 302(19): 2119–2126.

DOI: 10.1001/jama.2009.1622

Google Scholar

[3] Xie zhen hua. Improvement for t he Purifying Process of Folic Acid. Jiangsu Chemical Industry, 2005(3): 37-39 (In Chinese).

Google Scholar

[4] Li shu xin, Pan fu xing. New technique for producing animal feed additive folic. Hebei Journal of Industrial Science and Technology, 2009(27): 310 (In Chinese).

Google Scholar

[5] Kuh E, Smith JM. Method of purifying glutamic acid amides of pteroyl glutamic acid. US Patent: 2, 474, 184. (1949).

Google Scholar