Process for producing ascorbic acid
作者： Nick Allen Collins , Brendan William Boyd , Steven Thomas Perri , Bhaskar Krishna Arumugam , Jeffery Earl Grant Powell
DOI:
关键词:
摘要: The present invention comprises the use of sulfite additives to reduce discoloration L-ascorbic acid produced from or aqueous solutions 2-keto-L-gulonic acid. In one aspect, a continuous process for producing an solution reduces product stream color and improves recovery by binding high molecular weight reaction by-products. process, is separated residual sulfite-bound by-products produce enriched in ascorbic recovery, which recycled reactor. situ during increases overall yield acid, with no loss selectivity synthesis.
lens.org 参考文章(29)
B. L. Wedzicha, I. Bellion, S. J. Goddard, Inhibition of browning by sulfites. Advances in Experimental Medicine and Biology. ,vol. 289, pp. 217- 236 ,(1991) , 10.1007/978-1-4899-2626-5_16
Karlheinz Wembacher, Ulrich Fechtel, Process for the preparation of ascorbic acid ,(1996)
Reichstein Tadeus, Process for the manufacture of levoascorbic acid ,(1936)
Wolfgang Heinz, Klaus Beschmann, Bernd Müller, Jöran Stoldt, Ulrich Fechtel, Method for producing l-ascorbic acid ,(2000)
Christoph Klein, Tomislav Keglevic, Process for the production of sodium or potassium l-ascorbate ,(1990)
Yoshitaka Fujiwara, Masami Shinohara, Tetsuji Kaizu, Method of purifying L-ascorbic acid ,(1986)
Karsten Kjaergaard, Thomas Dr. Kuntze, Hans Gurski, Andreas Dr. Böttcher, Process for the preparation of L-ascorbic acid ,(2000)
Kevin M. Moore, Process for purifying 2-keto-L-gulonic acid ,(1999)
Laan Pancras J Van Der, Marie Van Eekelen, Process for producing ascorbic acid from 2-keto-levo-gulonic acid or its derivatives ,(1946)
Jean-Paul Richard, Gerard Wolff, Isidore Le Fur, Process for preparing ascorbic acid ,(1993)