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发明公开
CN108707084A 一种医药级L-丝氨酸的制备方法 无效 - 驳回

一种医药级L-丝氨酸的制备方法
摘要：
本发明公开了一种医药级L‑丝氨酸的制备方法，属于分离提取技术领域。本发明的方法仅需要脱色、浓缩、离心、结晶等常规制备手段，就可完成丝氨酸的制备；本发明的方法通过使用保护剂和乙醇对丝氨酸进行双重保护，实现了丝氨酸的高品质、高纯度；利用本发明的方法进行生产，无废水、节能环保、安全可靠；利用本发明的方法生产得到的丝氨酸为无水丝氨酸，晶型好、纯度高(纯度＞99％、透光度＞99.5％)，且比旋度可控制在+14°～+15.6°。
摘要（英）：

The invention discloses a preparation method of medical-level L-serine, which belongs to the technical field of separation extraction. The method only needs conventional preparation methods such as discoloration, concentration, centrifuging, crystallization and the like to prepare the serine. According to the preparation method of the medical-level L-serine, a protective agent and ethanol are usedfor dually protecting the serine, so that the high quality and high purity of the serine can be realized; by utilizing the preparation method, no waste water is produced, and energy conservation, environmental protection, safety and reliability can be realized; and the serine prepared by utilizing the preparation method provided by the invention is good in crystal form and high in purity (the purity is greater than 99 percent, and the light transmittance is greater than 99.5 percent), and the specific rotation can be controlled at +14 degrees to +15.6 degrees.

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