为了满足电子级软磁材料对原料的要求 ,需要电解金属锰中的含硅量在 2 0ｐｐｍ(ｐｐｍ =1 10 -6,以下同 )以内 ,而现有生产工艺难于满足这一要求。目前 ,国内生产的电解金属锰含硅量均在 40ｐｐｍ左右 ,粤怀电解锰有限责任公司在全国锰矿技术委员会的指导下 ,通过一年的工业生 In order to meet the requirements of electronic grade soft magnetic materials for raw materials, the amount of silicon contained in the electrolytic manganese metal needs to be within 20 ppm (ppm = 1 10 -6, the same below). However, the existing production process is difficult to meet this requirement. At present, the domestic production of electrolytic manganese content of silicon are about 40ppm, Guangdong Huaihua electrolytic manganese limited liability company in the country under the guidance of the manganese technical committee, through the year of industrial students