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发明公开
CN106633046A 一种阳离子改性γ‑聚谷氨酸的合成方法及其应用 有权

一种阳离子改性γ‑聚谷氨酸的合成方法及其应用
摘要：
本发明为一种阳离子改性γ‑聚谷氨酸的合成方法及其应用。该方法包含以下步骤：1)，将γ‑聚谷氨酸加入装有蒸馏水的反应器中，搅拌；2），将醚化剂3‑氯‑2‑羟丙基三甲基氯化铵和NaOH分别溶解到水中，分别得到醚化剂溶液和碱液；将步骤1）中的γ‑聚谷氨酸水溶液溶胀，然后滴入醚化剂溶液再滴加NaOH溶液，冷却，沉淀，冷藏，干燥，最后得到阳离子改性后的γ‑聚谷氨酸絮凝剂。本发明制备的阳离子改性γ‑聚谷氨酸对海水有着明显的絮凝沉降作用，投加量在2mg/L就可以达到89%以上的去浊率，是环境友好型的絮凝剂。
摘要（英）：

The invention relates to a synthesis method of cation modified gamma-polyglutamic acid and application thereof. The method comprises the following steps that (1) gamma-polyglutamic acid is added into a reaction kettle filled with distilled water; stirring is performed; (2) an etherifying agent of 3-chlorine-2-hydroxypropyl trimethyl ammonium chloride and NaOH are respectively dissolved into water to respectively obtain an etherifying agent solution and alkali liquor; a gamma-polyglutamic acid water solution in the step (1) is subjected to swelling; then, the etherifying agent solution is dripped, and then the NaOH solution is dripped; cooling, precipitation, refrigeration and drying are performed; finally, a cation modified gamma-polyglutamic acid flocculant is obtained. The prepared cation modified gamma-polyglutamic acid has an obvious flocculating settling effect on seawater; the turbidity removal rate being 89 percent or higher can be reached when the dosing quantity is 2mg/L; the cation modified gamma-polyglutamic acid is an environmental-friendly flocculant.

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