How to make better use of barite
How to make better use of barite
In addition to being used for increments, heavy calcium is mainly used to partially replace titanium and color pigments, replace light calcium and precipitated barium sulfate, and partially replace anti-corrosion pigments. When heavy calcium is used in interior architectural paint, it can be used alone or in combination with talc. Compared to talc, calcium carbonate reduces chalking rates, improves color retention and increases mold resistance in light paints. However, its poor acid resistance hinders its application in exterior coatings. Compared with heavy calcium, light calcium has small particle size and narrow particle size distribution range, high oil absorption and brightness, and light calcium can be used where matting effect is required.
It is produced with methyl mercaptan as raw material, absorbs hydrogen sulfide with lime milk and synthesizes it with calcium amide solution to produce thiourea. It is a multifunctional chemical from the synthesis of products (fine chemical intermediates) to the textile, dye and paper industries. From plastic and resin chemistry to metal processing, hydrometallurgy. Thiourea has a wide range of uses in these markets and, of course, can be prepared using the Claus process. It is mainly achieved by using incomplete combustion of hydrogen sulfide. This technology is very mature. And in all devices, the recovery rate can reach more than 96%. The barium carbonate-sulfuric acid method and the barium carbonate-sulfuric acid method are different from the first two. Most manufacturers cannot use the method of high-temperature roasting barite reduction due to environmental protection restrictions, and can only use natural high-quality witherite or outsourcing Industrial barium carbonate is processed to produce precipitated barium sulfate.
Barium sulfate is generally added in a small amount in paint. You can choose the kind that can be dispersed at a high speed and can reach a fineness of less than 10 microns. Third, from the technical point of view, in the case of good cooling conditions, appropriately reducing the feed amount will also help to reduce the fineness. For difficult-to-grind pigments such as carbon black, it generally takes several more times to reach the standard. At least 80% of the unqualified sanding may be due to the coarseness of the raw materials. Of course, attention should also be paid to the compatibility of each component. Is it precipitated due to unreasonable formula? Fourth, precipitated barium sulfate is generally not a big problem. Its process method basically determines that the dispersibility will not be too bad, mainly because talc powder is crushed from natural minerals. Therefore, the impact of the supplied specifications on the dispersibility is very different. For example, most manufacturers' 3000-mesh products do not need to be ground and directly stirred at a high speed to have a good fineness.
As a raw material, precipitated barium sulfate can be used in various industrial fields, not only as a filler. It can also make the product play a reinforcing role, surface coating agent for printing paper and coated paper, sizing agent for textile industry, clarifier in glass products, ceramics, enamel, spices, pigments and radiation protection, etc. The industry has also played a major role in tariffs and tariffs will be lowered in recent days. Notification of complete export duties. Since December 1, 2008, export tariffs or special export tariffs on some products have been cancelled, mainly including steel, chemical, and grain products. Steel products such as steel and welded pipes; chemical products such as nitrate, ammonium acid and ammonium sulfate; grain products such as corn, miscellaneous grains and their milling, a total of 102 products, and the export tariffs of some products are reduced.
Barite is a common mineral of barium, mainly composed of barium sulfate, which is generally produced in low-temperature hydrothermal veins. It can also be produced in precipitation rocks, in the residual clay cover of liquefaction remaining deposits, often in the form of knots and blocks. Barite manufacturers have found that barite can also be produced in sedimentary rocks, found in the form of nodules, mostly in sedimentary deposits and argillaceous and sandy sedimentary rocks in shallow seas. Barite manufacturers: how to make better use of barite?
In my country's barite mining, it is generally the advantage of the township enterprise station, but because the method used is not cash, the waste phenomenon is very obvious. Now, as long as all kinds of resources are properly used, all races, especially the increasingly scarce resources like barite, will serve all mankind for a long time. It can be said that the abnormal use of barite in the United States and China is a one-time performance of most countries. With the further tightening of the system, it will inevitably affect the prevalence and attention of resource reuse and environmental protection processing.
Therefore, with the stagnation of scientific technology and the deepening of research, more functions of barite will be reminded. For the deep processing of barite, such as ultra-fine powder, cracking, and nominal modification, there is no way to widen the application area, and the barite manufacturers have better economic benefits, and there is a greater need in the international and domestic markets.
The mining and development of a kind of goods originates from its application price, because the barite powder has a special nature and the development profit of the barite ore price is more and more concerned by everyone. Barite manufacturers: how to make better use of barite? To solve the problem of nominal modification of barite powder, a suitable modifier can be used to modify the name of barite and improve the mechanical properties of modified materials. , so that the barite powder has a wider use. In the paint industry, barite powder aggregate can increase the thickness, strength and durability of the paint film. The stagnation of light industry has put forward higher requirements for the purity, whiteness and particle size of barite. In the rubber and plastics industry, using barite as aggregate can improve the angle, wear resistance and aging resistance of rubber and plastics.
