Process for producing low molecular sodium heparin
A low-molecular-weight heparin sodium and production process technology, which is applied in the production process field of high-quality low-molecular-weight heparin sodium, can solve problems such as low product yield, unstable quality, and long production cycle, and achieve high purity, stable and reliable quality, and low cost. low effect
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[0025] The production technology of low molecular weight heparin sodium of the present invention comprises the following steps:
[0026] ① Sodium heparin solution
[0027] Weigh 10kg of crude heparin sodium into a reaction pot, add 0.1kg of acetic acid and 70kg of distilled water, stir for 6-8 hours, and the temperature of the distilled water is 60°C;
[0028] ② Preparation of degradation solution
[0029] Add 0.2kg of sodium nitrite to the heparin sodium solution obtained in step ①, at a temperature of -5 to 30°C, and stir for 4-5 hours;
[0030] ③ Preparation of neutralizing solution
[0031] Add sodium hydroxide to the degradation solution obtained in step 2, and adjust the pH to 6.5-7.0;
[0032] ④Collect sediment
[0033] Add 25kg of ethanol to the neutralizing solution obtained in step 3., and collect the precipitate by precipitation;
[0034] ⑤ Preparation of crude low molecular weight heparin sodium
[0035] Add 3kg of acetone to the precipitate obtained in step ...
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