1. The content of magnesium oxide is proportional to its activity in a certain range, but there is no such strict or reliable proportional relationship; Light burned magnesium ball
2. It is a serious mistake to think that "beyond the scope of this paragraph, it will be inversely proportional"!
3. It is also a serious mistake that some people misunderstand magnesium oxide as light burned powder. It should be said that the main component of light burned powder is magnesium oxide, and light burned powder also contains MgCO3, Mg (OH) 2, CaO, Fe2O3, Al2O3, SiO2 and other impurities. Conversely, it is a serious mistake to say that magnesium oxide is light burned powder.
4. With the innovation of the times and technology, the definitions of light calcined powder and magnesite have also changed significantly. The magnesite is fired in an old-fashioned earth kiln with dark color and high impurity content. The light calcined powder is also mostly fired from magnesite. The difference is that light calcined powder is fired in a reflection kiln at this stage, and the impurity content is much less. Qualified light burned powder shall comply with WB/T 1019-2002 Light burned Magnesium Oxide for Magnesite Products and HG/T 2573-2006 Light Industrial Magnesium Oxide. Lingkutu cannot meet these standards.
In addition, there is a deep-seated misunderstanding. The ethylene glycol extraction method is used to determine the content of f-CaO in light calcined powder. According to the experiment, ethylene glycol also absorbs magnesium oxide. With the different extraction time, the results will have a visible impact. This involves the correction of some national standards, which is also coincident with some other articles. This proposal is very important, and experts can further demonstrate it.
