FAQ

A: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

A:As diatomite is of unique micropore structure and particle distributing, which could form filter layer of high-infiltration after processed into filter aid, accordingly able to hold up various particles of impurities, getting rid of the tiniest suspending solid, even including particulate impurities of 0.01 micron, thus making filter liquid cleaner and cleaner. So it gains good reputation of natural molecule screen being an ideal material adopted at large in filtration industries at present. Nowadays, diatomite filter-aid has been widely used for solid-liquid separation and liquid purification in many industrial departments

A: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.

A: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 completely realized through differentiated batch control system. We can provide clients of various fields with stable and reliable products and professional and rapid services.

A: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; as the diatomite particles are of natural cavernous structure, which can block off impurities in original liquid so as to accomplish purpose of solid-liquid separation. But the clear liquid may pass through easily and still keep higher flowing speed.

A:

Diatomite filter-aid could be divided into constant-temperature dried products, calcined products and flux calcined products as per its production processing, and divided into for foods use and for industrial use in terms of its purpose.
The applicable equipments include: horizontal plate-frame filter, vertical vane filter, rotary vane filter, horizontal vane filter, horizontal disk filter and candle filter, all above equipments should be operated under positive pressure; and others include vacuum vane filter and vacuum rotary-drum filter, which should be operated under negative pressure.

A: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 to realize energy saving and effect enhancement at utmost.

A:"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 clients from worrying about the quality of diatomite filter-aid products.