The packaging of diatom mud products on the market often indicates the words “non-calcined diatomite” on the raw materials. What is the difference between non-calcined diatomite and calcined diatomite? What are the advantages of non-calcined diatomaceous earth? Both calcination and non-calcination are methods of purification of diatomaceous earth. Diatomaceous earth ore contains many impurities, so a series of methods must be used for purification. Non-calcined refers to diatomaceous earth that has not been calcined at high temperature. It is also called water-washed diatomaceous earth. It is different from flux-calcined diatomaceous earth. It is washed and dispersed, sieved, supergravity field laminar flow centrifugal beneficiation, dry classification, etc. The refined diatomaceous earth obtained by the process can effectively sort and remove the quartz, feldspar minerals, clay and some organic matter in the original diatomite ore, and can accurately classify the diatomaceous earth in the wet state to maximize the retention The natural functional properties of diatomaceous earth include larger specific surface area, higher porosity, larger pore volume, smaller pore size, and stronger adsorption and humidity control capabilities.
According to the comparison of the moisture absorption of the two diatomites under the same environment obtained by laboratory research, it is obvious that the moisture absorption capacity of non-calcined diatomite is several times higher than that of calcined diatomite. The performance of diatomite will affect the ability of diatom mud products to capture harmful molecules such as formaldehyde that are free in the air. The use of non-calcined diatomite can increase the adsorption performance of diatom mud several times, even ten times Above, according to multiple tests of Hongyi non-calcined diatom mud products by relevant departments, the formaldehyde purification performance reached 96%, 95%, 94%, and 92% respectively, and the test results were all over 90%. It is not difficult to see that the performance improvement of non-calcined diatomaceous earth for diatom mud products is obvious.
Post time: Sep-16-2021