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A platform for research: civil engineering, architecture and urbanism
Preparation method of food additive calcium hydroxide
The embodiment of the invention provides a preparation method of food additive calcium hydroxide, and relates to the technical field of food additives. The preparation method of the food additive calcium hydroxide comprises the following steps: obtaining a heat preservation container, and selecting kiln calcined lime as a raw material; the method comprises the following steps: putting selected kiln calcined quicklime into a heat-insulating container, adding deionized water, and sealing the heat-insulating container for digestion reaction; after the digestion reaction is finished, spraying ethanol to a digestion product; and drying the digestion product in a vacuum oven. Calcium hydroxide is produced from commercially available kiln-fired calcium oxide, and the raw materials are cheap and easy to obtain; no surfactant is used in the production process, no organic matter is attached to the surface of the prepared calcium hydroxide, the purity of the calcium hydroxide is improved, and the calcium hydroxide can be safely used as a food additive; after gas escaping from the vacuum drying oven is condensed and collected, ethanol is recovered through rectification for cyclic utilization, the ethanol utilization rate is high and is fully utilized, the raw material utilization rate is increased, and the cost is reduced.
本申请实施例提供一种食品添加剂氢氧化钙的制备方法，涉及食品添加剂技术领域。该食品添加剂氢氧化钙的制备方法，包括如下步骤：获取保温容器，选取窑烧生石灰作为原料；将选取的窑烧生石灰放入保温容器中，加入去离水后，密封保温容器进行消化反应；消化反应结束后，对消化产物喷洒乙醇；然后将消化产物放入真空烘箱中干燥。采用市售的窑烧氧化钙生产氢氧化钙，原料廉价易得；生产过程中不使用表面活性剂，所制得的氢氧化钙表面没有有机物附着，提高了氢氧化钙纯度，可安全地用作食品添加剂；对从真空烘箱中逸出的气体冷凝收集后，再经精馏回收乙醇、供循环利用，乙醇利用率高，充分利用，提高原料利用率，降低成本。
Preparation method of food additive calcium hydroxide
The embodiment of the invention provides a preparation method of food additive calcium hydroxide, and relates to the technical field of food additives. The preparation method of the food additive calcium hydroxide comprises the following steps: obtaining a heat preservation container, and selecting kiln calcined lime as a raw material; the method comprises the following steps: putting selected kiln calcined quicklime into a heat-insulating container, adding deionized water, and sealing the heat-insulating container for digestion reaction; after the digestion reaction is finished, spraying ethanol to a digestion product; and drying the digestion product in a vacuum oven. Calcium hydroxide is produced from commercially available kiln-fired calcium oxide, and the raw materials are cheap and easy to obtain; no surfactant is used in the production process, no organic matter is attached to the surface of the prepared calcium hydroxide, the purity of the calcium hydroxide is improved, and the calcium hydroxide can be safely used as a food additive; after gas escaping from the vacuum drying oven is condensed and collected, ethanol is recovered through rectification for cyclic utilization, the ethanol utilization rate is high and is fully utilized, the raw material utilization rate is increased, and the cost is reduced.
本申请实施例提供一种食品添加剂氢氧化钙的制备方法，涉及食品添加剂技术领域。该食品添加剂氢氧化钙的制备方法，包括如下步骤：获取保温容器，选取窑烧生石灰作为原料；将选取的窑烧生石灰放入保温容器中，加入去离水后，密封保温容器进行消化反应；消化反应结束后，对消化产物喷洒乙醇；然后将消化产物放入真空烘箱中干燥。采用市售的窑烧氧化钙生产氢氧化钙，原料廉价易得；生产过程中不使用表面活性剂，所制得的氢氧化钙表面没有有机物附着，提高了氢氧化钙纯度，可安全地用作食品添加剂；对从真空烘箱中逸出的气体冷凝收集后，再经精馏回收乙醇、供循环利用，乙醇利用率高，充分利用，提高原料利用率，降低成本。
Preparation method of food additive calcium hydroxide
一种食品添加剂氢氧化钙的制备方法
NING WENSHENG (author) / YU CHANG (author) / YU BINGQUAN (author) / HUO CHAO (author) / YANG XIAZHEN (author) / ZHANG YOUSHU (author) / JIANG QI (author) / WANG QI (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation process of calcium hydroxide and calcium hydroxide product
| European Patent Office | 2022