An improved process for the manufacture of gelling carrageenans from seaweed, wherein seaweed is subjected to a heterogenous reaction for alkali modification of the carrageenan precursor(s) to the gelling carrageenan(s) followed by a recovery process comprising one or more lye recovery sections for the recovery of aqueous alkaline medium, a washing process comprising one or more washing sections and further conventional work-up, provides for substantially savings in the amount of alkaline aqueous medium spent in the process.
一种利用海藻制造胶凝
卡拉胶的改进工艺,其中海藻经过异源反应,将
卡拉胶前体碱改性为胶凝
卡拉胶,然后经过由一个或多个碱液回收段组成的回收工艺以回收
水性碱性介质,再经过由一个或多个洗涤段组成的洗涤工艺和进一步的常规加工,从而大大节省了工艺中消耗的碱性
水性介质的量。