Amorphous igneous rock and preparation method thereof
An igneous rock and amorphous technology, applied in the direction of aluminum silicate, silicate, etc., can solve problems that have not been reported before, and achieve the effect of strong operability, low process cost and small particle size
Inactive Publication Date: 2020-07-24
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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Problems solved by technology
At present, there are few studies on the preparation of amorphous igneous rock powder products, and there is no report on the preparation of amorphous igneous rocks using obsidian as a raw material.
Method used
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Embodiment 1
[0026] A kind of preparation method of amorphous igneous rock of the present invention, its technological process schematic diagram is as figure 1 shown, including the following steps:
[0027] Using obsidian (silicon dioxide content 72%, water content 1.5%, vitreous content 81%) as raw material, the X-ray diffraction pattern of this obsidian is as follows figure 2 As shown, it can be seen from the figure that the obsidian has a semi-crystalline structure. The obsidian is roughly crushed by a jaw crusher (PE400×600), medium crushed by a hammer crusher (PCX0706), and double-rolled by a roller crusher (2PG0850). ) is finely crushed, obtain e=1mm obsidian fine sand after sieving, then get 100 parts of obsidian fine sand, soak 6h with 100 parts of mass fraction of hydrochloric acid solution of 3-12%, drain the hydrochloric acid solution before use 200 parts of water were washed twice and drained; then the obsidian fine sand was roasted in a fluidized furnace at 1000°C for 10 min...
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Abstract
The invention provides amorphous igneous rock and a preparation method thereof. The method comprises the following steps: firstly, crushing obsidian to obtain fine obsidian sand, and then sequentiallycarrying out acid pickling, water washing, roasting, quenching and ball milling to obtain the amorphous igneous rock. According to the method, the problem of rapid amorphization of the obsidian is effectively solved through an amorphization method combining fluidized bed roasting and quenching, the technological process is short, the technological cost is low, the production efficiency is high, the safety is high, the operability is high, and the method is suitable for industrial application. The amorphous igneous rock prepared by the method has the advantages of small particle size, high purity, acid corrosion resistance, high strength and amorphous structure, especially has the excellent characteristics of scratch resistance, water hammer impact resistance, friction resistance and the like, is suitable for various environments, and is suitable for being used as a reinforced wear-resistant material in the high-tech fields of aviation, spaceflight, military industry, petroleum, vehicles, ships, engineering plastics, buildings and the like.
Description
technical field [0001] The invention belongs to the technical field of mineral material preparation, and in particular relates to an amorphous igneous rock and a preparation method thereof. Background technique [0002] Common igneous rocks, such as granite, have a medium-fine-grained, coarse-grained crystal structure or glassy structure, which are easily powdery and broken under the action of rolling friction, and have poor wear resistance; obsidian, whose composition is similar to that of granite, has a semi- The crystalline structure, except for a small amount of phenocrysts and crystalline crystals, is almost entirely composed of glass. The wear resistance of amorphous igneous rock is second only to diamond, surpassing quartz and silicon nitride, and it has unique high temperature resistance and low temperature resistance (-269-650°C), acid and alkali resistance, oxidation resistance, radiation resistance, heat insulation and sound insulation, Fire and flame retardant, ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C01B33/26
CPCC01B33/26C01P2002/72C01P2004/62C01P2006/10
Inventor 胡云楚黄自知袁光明王文磊胡进波王琼杨涛夏名出王驰李航王朝辉
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY