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Preparation method of pollution-free prebaked anode
The invention discloses a pollution-free prebaked anode preparation method, which is characterized in that high-purity and low-impurity natural graphite, roasted graphite powder and low-ash binder raw materials are preferentially selected, the impurity content is checked, the ratio of the raw materials is strictly controlled according to the requirements of the prepared prebaked anode, and the prebaked anode is prepared. Powder and a binder are mixed in a mechanical stirring mode to ensure sufficient mixing and uniform distribution, a graphite raw material is purified through acid pickling, alkali washing, oxidation and reduction, graphite powder is sintered, a prebaked anode is prepared, various impurities possibly exist in the graphite raw material, and the most important influence factor is the content of the impurities. According to the method, the graphite raw material is purified through the methods of acid washing, alkali washing, oxidation, reduction and the like, impurities in the graphite raw material can be effectively removed, the purity of the graphite raw material is improved, the prepared prebaked anode is more stable in quality, higher in reliability and low in pollution, and meanwhile corrosion and loss of the anode in the using process can be reduced.
本发明公开了一种无污染预焙阳极制备法，其技术方案要点是：优先选择高纯度、低杂质的天然石墨、焙烧后的石墨粉末和低灰分粘结剂原料，并检查杂质含量，根据制备的预焙阳极要求严格控制原材料的配比，采用机械搅拌的方式混合粉末和粘结剂，以确保充分混合和均匀分布，酸洗、碱洗、氧化和还原对石墨原料进行提纯，将石墨粉经过烧结，制备出预焙阳极，石墨原料中可能存在着各种杂质，其中最主要的影响因素是杂质的含量，本发明中通过酸洗、碱洗、氧化和还原等方法对石墨原料进行提纯可以有效去除其中的杂质，提高石墨原料的纯度，这样制备出来的预焙阳极质量更加稳定，可靠性更高，污染性低，同时还能够降低阳极在使用过程中的腐蚀和损耗。
Preparation method of pollution-free prebaked anode
The invention discloses a pollution-free prebaked anode preparation method, which is characterized in that high-purity and low-impurity natural graphite, roasted graphite powder and low-ash binder raw materials are preferentially selected, the impurity content is checked, the ratio of the raw materials is strictly controlled according to the requirements of the prepared prebaked anode, and the prebaked anode is prepared. Powder and a binder are mixed in a mechanical stirring mode to ensure sufficient mixing and uniform distribution, a graphite raw material is purified through acid pickling, alkali washing, oxidation and reduction, graphite powder is sintered, a prebaked anode is prepared, various impurities possibly exist in the graphite raw material, and the most important influence factor is the content of the impurities. According to the method, the graphite raw material is purified through the methods of acid washing, alkali washing, oxidation, reduction and the like, impurities in the graphite raw material can be effectively removed, the purity of the graphite raw material is improved, the prepared prebaked anode is more stable in quality, higher in reliability and low in pollution, and meanwhile corrosion and loss of the anode in the using process can be reduced.
本发明公开了一种无污染预焙阳极制备法，其技术方案要点是：优先选择高纯度、低杂质的天然石墨、焙烧后的石墨粉末和低灰分粘结剂原料，并检查杂质含量，根据制备的预焙阳极要求严格控制原材料的配比，采用机械搅拌的方式混合粉末和粘结剂，以确保充分混合和均匀分布，酸洗、碱洗、氧化和还原对石墨原料进行提纯，将石墨粉经过烧结，制备出预焙阳极，石墨原料中可能存在着各种杂质，其中最主要的影响因素是杂质的含量，本发明中通过酸洗、碱洗、氧化和还原等方法对石墨原料进行提纯可以有效去除其中的杂质，提高石墨原料的纯度，这样制备出来的预焙阳极质量更加稳定，可靠性更高，污染性低，同时还能够降低阳极在使用过程中的腐蚀和损耗。
Preparation method of pollution-free prebaked anode
一种无污染预焙阳极制备法
ZHOU YONG (author) / HUANG HAIYAN (author) / LI YONGFENG (author) / ZHANG ZENGTANG (author) / DENG ZICHENG (author) / LIANG RANZHANG (author) / NONG ZENGHONG (author) / WEI LIANSHENG (author)
2023-07-28
Patent
Electronic Resource
Chinese
Homogeneous prebaked anode and preparation method thereof
| European Patent Office | 2024