Hebei Messi Biology Co., Ltd. stated that during the calcination of magnesium oxide, the heating rate has an impact on the activity of magnesium oxide, so mastering the heating rate is also very important.
Generally speaking, at a heating rate of 10℃/min, at each calcination temperature, the specific surface area and apparent specific volume of magnesium oxide are larger than the specific surface area of magnesium oxide obtained at a heating rate of 5℃/min. At the same time, the citric acid activity value is smaller than the citric acid activity value of magnesium oxide obtained at a heating rate of 5℃/min. From the change rate of each indicator at different temperatures, it can be seen that at a low heating rate, its activity changes faster with the calcination temperature. Increasing a certain heating rate is conducive to improving the activity of magnesium oxide. After comprehensive consideration, it is appropriate to choose a heating rate of 8-10℃/min.
Hebei Messi Biology Co., Ltd. hereby makes a suggestion to customers who need magnesium oxide. Customers who have strict requirements on activity should find a strong manufacturer when purchasing activated magnesium oxide. After all, strong manufacturers have relatively complete and advanced production equipment and technology, and their control over activity during the calcination process is also very mature. Only in this way can you find activated magnesium oxide suitable for your product.