Preparation method of modified medical stone

A medical stone and modification technology, applied in chemical instruments and methods, silicates, inorganic chemistry, etc., can solve the problems of limited ammonia nitrogen adsorption and removal capacity, achieve good practical application value and industrialization prospects, and improve ion exchange Ability and adsorption capacity, the effect of easy operation

Inactive Publication Date: 2015-03-11
符瞰
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Problems solved by technology

However, the existing natural medical stone has limited adsorption and removal capacity for ammonia nitrogen and he

Method used

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  • Preparation method of modified medical stone

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[0022] The method for preparing modified medical stone created by the present invention is used to prepare medical stone with high adsorption and removal capacity for ammonia nitrogen and heavy metals. Firstly, the medical stone is placed in an electric blast drying box at 100 It is roasted at a temperature of ~110°C for 1 hour, and then placed to cool to room temperature. After being crushed, it is sieved with a 40-mesh and 80-mesh sieve to obtain medical stone with a particle size of 40-80 mesh.

[0023] Then, soak the medical stone in 5 steps.

[0024] First, prepare a 1mol / L hydrogen chloride solution, mix it according to the ratio of medical stone and hydrogen chloride solution at 1:10, and immerse it in ultrasonic waves with a power of 60W and a frequency of 10000HZ for 1 hour at room temperature, and then use a 40-mesh sieve to break it. After rinsing the powder and slag twice with ionized water, it is placed in an environment of 120°C for drying for 1 hour and at 100°C for ...

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Abstract

The invention creatively discloses a preparation method of modified medical stone. The preparation method of the modified medical stone comprises the following steps: roasting the medical stone, then crushing the medical stone, screening to extract the medical stone with a particle size of 40-80 meshes, soaking the medical stone with a hydrogen chloride solution by radiation of ultrasonic wave with power of 60W, dipping the medical stone with a sodium chloride solution under negative pressure of 10-30 MPa, soaking the medical stone with a lithium chloride solution at 25 DEG C by oscillating at a rate of 180 r/min, soaking the medical stone with an aluminum chloride solution at 90 DEG C by oscillating at a rate of 100 r/min and soaking the medical stone with hydrogen peroxide step by step. According to the soaked medical stone, the ion exchange capability and the adsorption capability of the medical stone are greatly improved; the medical stone can be used for adsorbing and removing ammonia nitrogen and heavy metal ions; the effect of purifying water is achieved.

Description

technical field [0001] The invention relates to the technical field of medical stone, in particular to a preparation method of modified medical stone. Background technique [0002] With the destruction of water environment caused by population and economic growth, the shortage of water resources is increasing day by day. Water treatment has attracted people's attention. Traditional techniques like coagulation, sedimentation, filtration, and adsorption have been widely used to remove pollutants in water. Among them, adsorption technology has always been the focus of research and development because of its low cost, high efficiency, and easy promotion. However, the high cost and low efficiency of adsorbents limit the application of this technology. The development of new, high-efficiency, low-cost and abundant sources of new mineral adsorbents has always been a hot spot. [0003] Medical stone is a compound mineral or medicinal rock that is non-toxic and harmless to living t...

Claims

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Application Information

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IPC IPC(8): B01J20/16B01J20/30C02F1/28
CPCB01J20/165B01J20/3204B01J20/3214C02F1/281
Inventor 符瞰钟同畅
Owner 符瞰
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