Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of nano calcium hydroxide with controllable particle size
The invention discloses a preparation method of nano calcium hydroxide with controllable particle size, which comprises the following steps: (1) crushing calcium oxide to obtain calcium oxide powder with the maximum particle size of not more than 5mm; (2) carrying out ball milling on the calcium oxide powder or a mixture of the calcium oxide powder and a grinding aid to obtain calcium oxide ultrafine powder with the average particle size of not more than 50 microns; (3) uniformly mixing the calcium oxide ultrafine powder with a liquid dispersant to obtain calcium oxide sticky slurry or calcium oxide emulsion; (4) adding water into the calcium oxide sticky slurry or the calcium oxide emulsion, stirring, and digesting calcium oxide to obtain calcium hydroxide; and (5) drying and separating the calcium hydroxide to obtain the nano calcium hydroxide. The preparation method is low in cost, simple in preparation and controllable in particle size.
本发明公开了一种粒径尺寸可控的纳米氢氧化钙制备方法，包括如下步骤，(1)将氧化钙破碎，得到最大粒径不超过5mm的氧化钙粉末；(2)对氧化钙粉末或氧化钙粉末与助磨剂的混合物进行球磨，得到平均粒径不超过50μm的氧化钙超细粉；(3)将氧化钙超细粉与液体分散剂混合均匀，得氧化钙黏稠浆料或氧化钙乳液；(4)在氧化钙黏稠浆料或氧化钙乳液中加入水，搅拌，氧化钙消化得到氢氧化钙；(5)将氢氧化钙烘干，分离，得到纳米氢氧化钙。本发明成本低，制备简单，粒径可控。
Preparation method of nano calcium hydroxide with controllable particle size
The invention discloses a preparation method of nano calcium hydroxide with controllable particle size, which comprises the following steps: (1) crushing calcium oxide to obtain calcium oxide powder with the maximum particle size of not more than 5mm; (2) carrying out ball milling on the calcium oxide powder or a mixture of the calcium oxide powder and a grinding aid to obtain calcium oxide ultrafine powder with the average particle size of not more than 50 microns; (3) uniformly mixing the calcium oxide ultrafine powder with a liquid dispersant to obtain calcium oxide sticky slurry or calcium oxide emulsion; (4) adding water into the calcium oxide sticky slurry or the calcium oxide emulsion, stirring, and digesting calcium oxide to obtain calcium hydroxide; and (5) drying and separating the calcium hydroxide to obtain the nano calcium hydroxide. The preparation method is low in cost, simple in preparation and controllable in particle size.
本发明公开了一种粒径尺寸可控的纳米氢氧化钙制备方法，包括如下步骤，(1)将氧化钙破碎，得到最大粒径不超过5mm的氧化钙粉末；(2)对氧化钙粉末或氧化钙粉末与助磨剂的混合物进行球磨，得到平均粒径不超过50μm的氧化钙超细粉；(3)将氧化钙超细粉与液体分散剂混合均匀，得氧化钙黏稠浆料或氧化钙乳液；(4)在氧化钙黏稠浆料或氧化钙乳液中加入水，搅拌，氧化钙消化得到氢氧化钙；(5)将氢氧化钙烘干，分离，得到纳米氢氧化钙。本发明成本低，制备简单，粒径可控。
Preparation method of nano calcium hydroxide with controllable particle size
一种粒径尺寸可控的纳米氢氧化钙制备方法
GAO FENG (Autor:in) / WANG YING (Autor:in) / FU JINGHUAN (Autor:in) / KANG JIANING (Autor:in)
20.12.2024
Patent
Elektronische Ressource
Chinesisch
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