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Preparation method of titanium-carbon composite material for producing titanium dioxide powder by chlorination process
The invention discloses a preparation method of a titanium-carbon composite material for producing titanium dioxide powder by a chlorination process. The preparation method comprises the steps of uniformly mixing titanium-containing raw material powder with calcined coke powder and a binder, pelletizing, roasting, carbonizing, crushing and screening to obtain the titanium-carbon composite material, wherein the adding amount of the titanium-containing raw material powder is 30-65% of the total mass of the mixed raw materials; the adding amount of the calcined coke powder is 30-55% of the total mass of the mixed raw materials; the adding amount of the binder and the additive is 5-15% of the total mass of the mixed raw materials; and the contact area and the reaction activity among raw material particles are improved, the reaction of the raw materials in a fluidized bed furnace is promoted, the proportion of rutile type titanium dioxide powder in the product is increased, the formation of substances influencing the brightness and the whiteness of the product, such as trivalent titanium, is reduced, the brightness, the whiteness and the dispersity of the finally prepared titanium dioxide powder are effectively improved, and the preparation of the titanium dioxide powder with higher covering power and weather resistance is facilitated.
本申请公开了一种用于氯化法二氧化钛粉生产的钛碳复合材料制备方法，包括以下步骤：将含钛原料粉体与煅后焦粉、粘结剂混合均匀后进行造球、焙烧碳化、破碎筛分得到钛碳复合材料；含钛原料粉体的加入量为混合原料总质量的30～65％；煅后焦粉的加入量为混合原料总质量的30～55％；粘结剂及添加剂的加入量为混合原料总质量的5～15％；提高原料颗粒间的接触面积及反应活性，促进原料在沸腾炉中的反应，提高产品中金红石型二氧化钛粉比例，减少三价钛等影响产品亮度白度的物质形成，有效提高最终制得二氧化钛粉的亮度和白度、分散性，有利于制得遮盖力和耐候性更强的二氧化钛粉。
Preparation method of titanium-carbon composite material for producing titanium dioxide powder by chlorination process
The invention discloses a preparation method of a titanium-carbon composite material for producing titanium dioxide powder by a chlorination process. The preparation method comprises the steps of uniformly mixing titanium-containing raw material powder with calcined coke powder and a binder, pelletizing, roasting, carbonizing, crushing and screening to obtain the titanium-carbon composite material, wherein the adding amount of the titanium-containing raw material powder is 30-65% of the total mass of the mixed raw materials; the adding amount of the calcined coke powder is 30-55% of the total mass of the mixed raw materials; the adding amount of the binder and the additive is 5-15% of the total mass of the mixed raw materials; and the contact area and the reaction activity among raw material particles are improved, the reaction of the raw materials in a fluidized bed furnace is promoted, the proportion of rutile type titanium dioxide powder in the product is increased, the formation of substances influencing the brightness and the whiteness of the product, such as trivalent titanium, is reduced, the brightness, the whiteness and the dispersity of the finally prepared titanium dioxide powder are effectively improved, and the preparation of the titanium dioxide powder with higher covering power and weather resistance is facilitated.
本申请公开了一种用于氯化法二氧化钛粉生产的钛碳复合材料制备方法，包括以下步骤：将含钛原料粉体与煅后焦粉、粘结剂混合均匀后进行造球、焙烧碳化、破碎筛分得到钛碳复合材料；含钛原料粉体的加入量为混合原料总质量的30～65％；煅后焦粉的加入量为混合原料总质量的30～55％；粘结剂及添加剂的加入量为混合原料总质量的5～15％；提高原料颗粒间的接触面积及反应活性，促进原料在沸腾炉中的反应，提高产品中金红石型二氧化钛粉比例，减少三价钛等影响产品亮度白度的物质形成，有效提高最终制得二氧化钛粉的亮度和白度、分散性，有利于制得遮盖力和耐候性更强的二氧化钛粉。
Preparation method of titanium-carbon composite material for producing titanium dioxide powder by chlorination process
用于氯化法二氧化钛粉生产的钛碳复合材料制备方法
NIU JINCAI (author) / HE YONGKANG (author) / SHI QIANGQIANG (author) / WANG GUIXIAN (author) / WANG DANDAN (author) / DU NING (author) / LIU YUCHEN (author) / ZHAO YANGYANG (author)
2022-01-18
Patent
Electronic Resource
Chinese
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