Patent
Practical prep. of L-ascorbic acid 2-monophosphate
TLDR
In this article, a practical preparation process of L-ascorbic acid 2-minophosphate is carried out in dilute solution with pH value of 9-11 and at normal temperature.Abstract:
The practical preparation process of L-ascorbic acid 2-minophosphate is carried out in dilute solution with pH value of 9-11 and at normal temperature. The process uses L-ascorbic acid, sodium trimetaphophate and alkali earth metal hydroxide as material in proper molar ratio. The product of the process has L-ascorbic acid equivalent over 35%. L-ascorbic acid converting rate of 85%, calcium ion tosodium ion ratio of 0.5-0.75, high water insolubility and thus less application loss, and may be used as aquatic animal feed additive directly without need of coating.read more
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Method for preparing feed grade L-ascorbate-2-phosphate
TL;DR: In this article, a method for preparing feed grade L-ascorbate-2-phosphate is described. But the method comprises the steps of mixing water, Lascorbic acid and sodium L-ASCorbate and adjusting pH, adding calcium hydroxide or calcium carbonate suspension, adding sodium trimetaphosphate for phosphorylation, standing and solidifying, chopping and performing flash drying to obtain the final product.
Patent
Preparation method of phosphoric acid-2-ascorbic acid ester salt
TL;DR: In this paper, a preparation method of a phosphoric acid-2-ascorbic acid ester salt was proposed, which consisted of the following steps: firstly, mixing L-ASCorbic acids with water in a reaction kettle, thereby obtaining an aqueous solution with the concentration of 4.13 mol/L; slowly adding 48% sodium hydroxide solution into the aqous solution until the neutralization degree reaches 80%.
Patent
Preparation method of L-ascorbic acid-2-triphosphate for feed
TL;DR: In this article, a preparation method of Lascorbic acid-2-triphosphate for feed has been described, which includes: preparing ascorbic acid slurry, adding lime milk to allow the calcium asbate slurry to be alkaline; adding hydroxide into the.