A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of hydrophilic graphite for a carbon-containing refractory material. The preparation method comprises the following steps: adding fine magnesia powder into water, and conducting pre-stirring to obtain a mixture A; adding the mixture A into a V-shaped stirrer, and adding graphite, a dispersing agent and water to obtain a mixture B; adding a binder into the mixture B, and performing pelletizing by using a pelletizer or pressing the mixture B into bricks by using a brick press; and baking prepared balls or brick bodies to obtain a mixture C. According to the invention, a process is simple and easy to control, a production period is short, cost is low, and a preparation process is environment-friendly; Mg(OH)2 sol is generated after magnesia fine powder is hydrolyzed, the Mg(OH)2 sol is efficiently stirred to wrap a graphite surface, then forming and baking are conducted so as to dehydrate a sol wrapping layer, so graphite surface modification by nanoscale magnesium oxide is achieved, and the hydrophilicity of graphite or the bonding strength of graphite and other inorganic materials is enhanced; and therefore, the purpose of improving the dilutability, wettability, dispersity and flowability of existing graphite products and water or oil is achieved.
本发明公开了一种含碳耐火料用亲水性石墨制备方法，通过将镁砂细粉加入到水中，预搅拌，得到混合料A，将混合料A加入到V型搅拌机中，加入石墨、分散剂和水，得到混合料B，向混合料B中加入粘结剂，用制球机制球或压砖机压成砖，将制成的球或砖体进行烘烤，得到混合料C；工艺简单易控，生产周期短，成本低廉，制备过程环保，镁砂细粉水解后生成Mg(OH)2溶胶体，通过高效搅拌Mg(OH)2溶胶体包裹在石墨表面，再经过成型烘烤，使溶胶包裹层脱水实现纳米级氧化镁对石墨表面改性，增强石墨亲水性或与其它无机材料的结合强度，从而达到了提升现有石墨产品与水或油的稀释性、润湿性、分散性、流动性的目的。
The invention discloses a preparation method of hydrophilic graphite for a carbon-containing refractory material. The preparation method comprises the following steps: adding fine magnesia powder into water, and conducting pre-stirring to obtain a mixture A; adding the mixture A into a V-shaped stirrer, and adding graphite, a dispersing agent and water to obtain a mixture B; adding a binder into the mixture B, and performing pelletizing by using a pelletizer or pressing the mixture B into bricks by using a brick press; and baking prepared balls or brick bodies to obtain a mixture C. According to the invention, a process is simple and easy to control, a production period is short, cost is low, and a preparation process is environment-friendly; Mg(OH)2 sol is generated after magnesia fine powder is hydrolyzed, the Mg(OH)2 sol is efficiently stirred to wrap a graphite surface, then forming and baking are conducted so as to dehydrate a sol wrapping layer, so graphite surface modification by nanoscale magnesium oxide is achieved, and the hydrophilicity of graphite or the bonding strength of graphite and other inorganic materials is enhanced; and therefore, the purpose of improving the dilutability, wettability, dispersity and flowability of existing graphite products and water or oil is achieved.
本发明公开了一种含碳耐火料用亲水性石墨制备方法，通过将镁砂细粉加入到水中，预搅拌，得到混合料A，将混合料A加入到V型搅拌机中，加入石墨、分散剂和水，得到混合料B，向混合料B中加入粘结剂，用制球机制球或压砖机压成砖，将制成的球或砖体进行烘烤，得到混合料C；工艺简单易控，生产周期短，成本低廉，制备过程环保，镁砂细粉水解后生成Mg(OH)2溶胶体，通过高效搅拌Mg(OH)2溶胶体包裹在石墨表面，再经过成型烘烤，使溶胶包裹层脱水实现纳米级氧化镁对石墨表面改性，增强石墨亲水性或与其它无机材料的结合强度，从而达到了提升现有石墨产品与水或油的稀释性、润湿性、分散性、流动性的目的。
Preparation method of hydrophilic graphite for carbon-containing refractory material
一种含碳耐火料用亲水性石墨制备方法
ZHAO MING (author)
2021-09-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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