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公开(公告)号:US4049781A
公开(公告)日:1977-09-20
申请号:US612041
申请日:1975-09-10
IPC分类号: C01B33/152 , C01B33/16 , C01B33/12
CPC分类号: C01B33/166 , C01B33/152
摘要: A loosely aggregated 200-500 millimicron primary particle size silica can be produced by a silicate neutralization technique. The process consists of neutralizing an alkali metal silicate solution by addition to an ammoniated acetic acid or carbonic acid mixture. These particles are loosely aggregated to an average particle size of about 1 micron. These particles are readily deaggregated in a fluid energy mill. A very convenient technique is to dry and deaggregate in a fluid energy mill in a single step.
摘要翻译: 松散聚集的200-500毫摩尔一次粒径的二氧化硅可以通过硅酸盐中和技术生产。 该方法包括通过加入氨化乙酸或碳酸混合物中和碱金属硅酸盐溶液。 这些颗粒松散地聚集成约1微米的平均粒度。 这些颗粒容易在流体能量磨中解聚。 一种非常方便的技术是在一个单一步骤中在流体能量磨中干燥和解聚。