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What’s diatomaceous earth?

copyfrom:青岛盛泰硅业有限公司 Date:2016-11-14 viewed:120

     Diatomaceous earth(diatomite、kieselguhr 、kieselgur 、tripoli 、infusorlal earth) is a kind of sediment rock of silicon character with biology cause of formation, mainly consisting of remains of ancient diatom, taking SiO2 as main chemical compositions, opal and its variation as mineral compositions. SiO2 in Diatomaceous earth(diatomite、kieselguhr 、kieselgur 、 tripoli 、infusorlal earth) is different from that in other minerals and rocks on structure and compositions, and it is an amorphous opal mineral with organic cause of formation, generally called diatomaceous silicon dioxide. Beside H2O and SiO2, there is a small quantity of Fe, Al, Ca, Mg, K, Na and other impurities in diatomite. As per crude ore quality, the Diatomaceous earth(diatomite 、kieselguhr 、 kieselgur 、tripoli 、infusorlal earth) could be divided into diatomite, clay-inclusive diatomite and clay diatomaceous earth.Diatomaceous earth(diatomite、kieselguhr 、 kieselgur 、 tripoli 、infusorlal earth)refers to the content of diatom shell accounting for above 80% in crude ore, while clay-inclusive diatomite contains more than 70% of diatom shell in crude ore, and clay diatomite contains about 60% of diatom shell in crude ore, showing that the last one is of bad quality
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常见问题Common problem

What’s diatomaceous earth stuffing?
For applied structures of diatomite, fillings act as the second largest use of diatomite inferior to filter-aid It is of light-weight, soft-quality, multi-hole, sound insulation, heat-resistant, acid-resistant, large specific surface area as well as stable chemical property and other series of good characters, so diatomite is a kind of functional fillings wildly used in many industrial fields
How about quality stability of products of your company?
Raw materials of our company for producing diatomite filter-aid are completely from self-owned mine and high quality ores with SiO2 more than 85% are used for production Our company persists in inspecting all raw materials, intermediate products and additives and strictly implements ISO9001: 2000 quality management system standards and ISO14001: 2004 environmental management system standards during actual production Tracking for finished products is
Functional Mechanism of Diatomite(diatomaceous earth) Filter-aid
Circulate pre-coating liquid of diatomite again and again to make the first layer of diatomite deposited on the filter medium, and this process is called as pre-coating Then make a spot of diatomite added into original liquid timely, which is called as addition Along with process of filtration, the diatomite added mixes with impurities in the original liquid, depositing on the pre-coating layer, thus new pre-coating layers are formed constantly;
Selection of Model of Diatomite (diatomaceous earth) Filter-aid
Choosing right filter-aid model is crucial to success of use Since it’s different of filter machine, operating environment and technical requirement for each factory, different models of filter-aid in our company could be chosen randomly on the basis of ensuring clear filter liquid and getting most filtration quantities So generally on the premise of satisfying technical requirement, it is a must to search for maximal filtration speed, according
How about chemical stability of Diatomite (diatomaceous earth) filter-aid?
“Tosens” brand diatomite filter-aid has chemical stability and doesn’t’ produce chemical change with the suspension except for the hydrofluoric acid and also is not soluble in fluid phase; moreover, it has low heavy metal content and doesn’t contain poor impurities, dyeing, sand grains and unpleasant odor High-purity raw material, advanced production equipment and high-standard quality management system can fundamentally relieve the client