Identification features: plate crystal, hardness, complete cleavage near the right angle, high density, no sputum in the case of hydrochloric acid, and thus distinguished from similar calcite .
Barite is mainly formed under medium and low temperature hydrothermal conditions, and there are huge barite veins in Hebei. Barite is the raw material for extracting bismuth. It can be used as a mud weighting agent for drilling. It can be used as a radiation-resistant gravity wall material instead of stone. It can also be used in various white pigments, coatings and rubber industries. Fillers and chemicals in the paper industry. Development and utilization of barite
Barite is a very important non-metallic mineral raw materials, a wide range of industrial uses.
1. Drilling mud weighting agent. When drilling some oil and gas wells, the drilling mud and clay generally used have a specific gravity of about 25, and the specific gravity of water is 1. Therefore, the mud weight is low, and sometimes the mud weight cannot be balanced with the underground oil and gas pressure. , causing a blowout accident. In the case of high underground pressure, it is necessary to increase the specific gravity of the mud. Adding barite powder to the mud is an effective measure to increase the specific gravity of the mud. The barite used for drilling mud generally has a fineness of more than 325 mesh. If the fineness of the barite is insufficient, precipitation is likely to occur. The barite for drilling mud requires a specific gravity of more than 4.2, the BaSO4 content is not less than 95%, and the soluble salt is less than 1%.
2, zinc bismuth white pigment. Zinc bismuth white is a commonly used high-quality white pigment, can be used as a raw material for paints and paints. The mixture of barium sulfate and barium sulfide (BaS) can be reduced by using a reducing agent, and then a mixture of barium sulfate and zinc sulfide obtained by reacting with zinc sulfate (ZnSO4) (70% of BaSO4 and 30% of ZnS) is zinc barium. White pigment. The preparation of zinc-white barite requires a BaSO4 content of greater than 95% and should not contain visible colored impurities.
3, various antimony compounds. Quartz can be used as raw materials to produce chemical raw materials such as antimony oxide, barium carbonate, barium chloride, barium nitrate, precipitated barium sulfate, barium hydroxide and the like.
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