The current situation of domestic and international development of diatomite

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copyfrom：shengtai Date：2016-07-14 viewed:198

Currently, the main areas of consumption of diatomites in the world are filters, synthetic fillers and insulation materials. The United States, the former Soviet union, France, Denmark and Germany are the main consumption countries of diatomites.The United States consumed 525, 000 tonnes in 1995, its consumption comprised of filters of 73 %, 14 % stuffing and 13% others. Currently, the consumption of diatomates in Western Europe is about 650,000 tons per year, with aid of 55% and industrial packing of 45%.

From macroscopic aspect, the main compositions of diatomite are: filter materials, insulation materials, functional fillers, building materials, catalyst carrier, cement mixed materials and other materials. The application structure is different because of different resource conditions and economic development levels. For example, the production of United State is705, 000 tons in 1997. The structure of the application is: 76% of the filter, 13% of the packing, and others for 20%.This is because the United States has large scale of the Lompoc diatomite deposit with very good quality. Denmark doesn’t have good diatomates but Moler diatomites are rich. which makes up 60% of the insulation materials and 40% of the packing materials. In French, 50% are filters and the stuffing is 50%.Germany has 50% of the stuffing, 30% as a filter and 20% as a catalyst.Japan made 35% for stuffing, 33% of filter ,21% for building materials and 11% as insulation materials.

Therefore, each country develops diatomite products according to the characteristic of diatomite. Diatomite industry in China started from insulation material and vanadium catalyst carriers, in the 1960 s we have cement mixed materials, in the early 1970s, we have a filter aid, we have packing and fine chemical products in 1980s and we have new wall materials in the 1990 s. At present, there are eight series of diatomite products in our country, with dozens of products, hundreds of specifications, and the output is increasing year by year.
Diatomite becomes diatomite powder, fine soil, calcined diatomite and solvent calcined diatomite by mineral processing. Each of them has certain technical indicators, and wide applications and there are more than 500 kinds of products. Because the diatomite has characteristics of fine, loose, qualitative light, porous, strong water absorption and permeability , its special structure makes it have different uses. It is widely used in light achievement, chemical industry, building materials, petroleum, medicine, health and other fields due to its features of big porosity, strong adsorption, low density, high melting point, abrasion resistance, heat insulation, sound absorption, stable chemical performanc. Diatomite is used as filters and absortion materials in coatings, papermaking, plastics, rubber, insecticides and other industries. Insulating bricks and refractory bricks made of diatomite are widely used in steelmaking, power machine equipment and processing glass ceramic and refrigeration equipment. Sugar and brewing industry use microscopic pores of diatomites as filters and bleaching materials to clarify various organic solutions.Diatomites can also be used as a mixture of cement.

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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