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A platform for research: civil engineering, architecture and urbanism
Production method of high-purity magnesia
The invention relates to the technical field of magnesia production. The invention further discloses a production method of high-purity magnesia. The preparation method comprises the following step of: step 1, selecting shell powder of which the silicon dioxide content is lower than 0.1% and of which the calcium oxide content is higher than 94%, calcining the shell powder to generate lime, pouringthe prepared lime into a proper amount of water, uniformly stirring the lime to form lime milk, and filtering the prepared lime milk. According to the production method of the high-purity magnesia, amaterial filter cake is finely ground by a ball mill, so that the surface area activity of magnesium oxide is increased, meanwhile, the particle appearance form and the lattice distortion degree arechanged; the capacity of anion resin for adsorbing other ions is zero in an environment with a neutral PH value; boron oxide in the magnesium oxide is adsorbed through negative ion exchange resin, thecontent of boron in the magnesium oxide is reduced, the purity of the magnesium oxide is improved; the boron removal process is simple, the efficiency is high, and therefore, the production cost is low, and the competitive advantage of manufacturers for producing high-purity magnesia is improved.
本发明涉及镁砂生产技术领域，且公开了一种高纯镁砂的生产方法，包括以下步骤：步骤一：选取二氧化硅含量低于0.1％，氧化钙含量大于94％的贝壳碎末，并对其进行煅烧生成石灰，将制取的石灰倒入适量的水份中对其进行均匀搅拌形成石灰乳，并对制取的石灰乳进行过滤。该高纯镁砂的生产方法，通过对物料滤饼经过球磨机进行细磨，有利于增加氧化镁表面积的活性，同时改变颗粒外观形态和晶格扭曲程度，在中性PH值的环境下，阴离子树脂吸附其他离子的能力为零，通过负离子交换树脂对氧化镁中的氧化硼进行吸附，降低氧化镁中硼的含量，有利于提高氧化镁的纯度，且除硼流程简单，效率高，生产成本低的优势，提高了厂家生产高纯镁砂的竞争优势。
Production method of high-purity magnesia
The invention relates to the technical field of magnesia production. The invention further discloses a production method of high-purity magnesia. The preparation method comprises the following step of: step 1, selecting shell powder of which the silicon dioxide content is lower than 0.1% and of which the calcium oxide content is higher than 94%, calcining the shell powder to generate lime, pouringthe prepared lime into a proper amount of water, uniformly stirring the lime to form lime milk, and filtering the prepared lime milk. According to the production method of the high-purity magnesia, amaterial filter cake is finely ground by a ball mill, so that the surface area activity of magnesium oxide is increased, meanwhile, the particle appearance form and the lattice distortion degree arechanged; the capacity of anion resin for adsorbing other ions is zero in an environment with a neutral PH value; boron oxide in the magnesium oxide is adsorbed through negative ion exchange resin, thecontent of boron in the magnesium oxide is reduced, the purity of the magnesium oxide is improved; the boron removal process is simple, the efficiency is high, and therefore, the production cost is low, and the competitive advantage of manufacturers for producing high-purity magnesia is improved.
本发明涉及镁砂生产技术领域，且公开了一种高纯镁砂的生产方法，包括以下步骤：步骤一：选取二氧化硅含量低于0.1％，氧化钙含量大于94％的贝壳碎末，并对其进行煅烧生成石灰，将制取的石灰倒入适量的水份中对其进行均匀搅拌形成石灰乳，并对制取的石灰乳进行过滤。该高纯镁砂的生产方法，通过对物料滤饼经过球磨机进行细磨，有利于增加氧化镁表面积的活性，同时改变颗粒外观形态和晶格扭曲程度，在中性PH值的环境下，阴离子树脂吸附其他离子的能力为零，通过负离子交换树脂对氧化镁中的氧化硼进行吸附，降低氧化镁中硼的含量，有利于提高氧化镁的纯度，且除硼流程简单，效率高，生产成本低的优势，提高了厂家生产高纯镁砂的竞争优势。
Production method of high-purity magnesia
一种高纯镁砂的生产方法
ZHAO XIANHUA (author) / ZHANG YIXIAN (author) / JIN ZHAO (author) / YIN BIN (author) / GONG HUAZE (author) / CHEN DONGMING (author) / TANG XIANGHAI (author)
2020-10-13
Patent
Electronic Resource
Chinese
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