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固相催化剂的研究,在寻找高效能的活性组分同时,还需研究解决高分散性的载体。近年来,一些研究者正在探索利用大表面的氧化镁作载体制备催化剂。本文作者曾利用市售氧化镁或碱式碳酸镁(比表面20m~2·g~(-1)左右),研制得到大表面氧化镁,其比表面高达220m~2·g~(-1)。但浸渍负载后,其比表面大幅度下降。因此本文拟对这一变化的规律进行探索,并探明造成比表面下降的主要原因及其抑制的方法。
Solid-phase catalyst research, looking for high-performance active components at the same time, need to study to solve the high dispersion carrier. In recent years, some researchers are exploring the use of large surface magnesia as a carrier for preparing the catalyst. The authors have used commercially available magnesia or basic magnesium carbonate (specific surface 20m ~ 2 · g ~ (-1) or so), developed a large surface magnesium oxide, the specific surface of up to 220m ~ 2 · g ~ (-1) . However, after immersion load, its specific surface decreased significantly. Therefore, this article intends to explore the law of change, and explore the main reasons for the decline caused by the surface and its inhibition methods.