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Preparation method and application of nano barium sulphate

A technology of nano-barium sulfate and preparation steps, which is applied in the direction of electrolysis process, reflection/signal coating, electrolysis components, etc. It can solve the problems of poor product stability and large particle size, and achieve stable product quality, good effect and stable performance.

Active Publication Date: 2014-12-10
GUANGDONG YUFENG POWDER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, the particle size existing in nano barium sulfate and preparation method thereof is larger, and the defect of poor product stability, the present invention proposes a kind of preparation method and application of nano barium sulfate, in order to achieve the above object, technical scheme of the present invention is Add barium ions and sulfate ions of specified concentration into the electrolyte from the anode and cathode of the electrolytic cell, and use the charged ions to move at high speed under the action of an electric field and collide to form barium sulfate precipitates

Method used

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  • Preparation method and application of nano barium sulphate

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Embodiment 1

[0030] 1) the barium chloride of 45 parts by weight and the sodium sulfate of 45 parts by weight are respectively configured into the solution that same concentration is 0.5mol / L, stand-by;

[0031] 2) Mix an appropriate amount of sodium chloride solution with a concentration of 0.5mol / L and 3 parts by weight of anti-agglomeration agent evenly and then add it to the electrolytic cell. Use carbon rods as the electrode materials for the cathode and anode, and the power supply is a DC power supply with a voltage of 120V , carry out electrolysis at normal temperature and pressure;

[0032] 3) Add the barium chloride solution and sodium sulfate solution obtained in step 1) from the anode and cathode of the electrolytic cell at the same speed under the condition of energization in step 2), and react for 3 minutes under the condition of energization. get a mixed solution. During the electrification reaction, the barium ions in the solution move quickly to the cathode under the actio...

Embodiment 2

[0036] 1) the barium chloride of 45 parts by weight and the sodium sulfate of 45 parts by weight are respectively configured into the solution that same concentration is 4.0mol / L, stand-by;

[0037] 2) Mix an appropriate amount of sodium chloride solution with a concentration of 0.5mol / L and 5 parts by weight of anti-agglomeration agent evenly and then add it to the electrolytic cell. Use carbon rods as the electrode materials for the cathode and anode, and the power supply is a DC power supply with a voltage of 240V , carry out electrolysis at normal temperature and pressure;

[0038] 3) Add the barium chloride solution and sodium sulfate solution obtained in step 1) from the anode and cathode of the electrolytic cell at the same speed under the condition of energization in step 2), and react for 5 minutes under the condition of energization. get a mixed solution. During the electrification reaction, the barium ions in the solution move quickly to the cathode under the actio...

Embodiment 3

[0042] 1) the barium chloride of 50 weight parts and the sodium sulfate of 50 weight parts are respectively configured into the solution that same concentration is 2.5mol / L, stand-by;

[0043] 2) Mix an appropriate amount of sodium chloride solution with a concentration of 1.5mol / L and 5 parts by weight of anti-agglomeration agent evenly and then add it to the electrolytic cell. Use carbon rods as the electrode materials for the cathode and anode, and the power supply is a DC power supply with a voltage of 220V , carry out electrolysis at normal temperature and pressure;

[0044] 3) Add the barium chloride solution and sodium sulfate solution obtained in step 1) from the anode and cathode of the electrolytic cell at the same speed under the condition of energization in step 2), and react for 3 minutes under the condition of energization. get a mixed solution. During the electrification reaction, the barium ions in the solution move quickly to the cathode under the action of t...

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Abstract

The invention relates to a preparation method and application of nano barium sulphate. The preparation method of the nano barium sulphate concretely comprises that barium ions and sulphate ions in specified concentration are added into electrolyte from an anode and a cathode of an electrolysis cell respectively, move at high speed under the action of an electric field by utilizing charged ions and collide to generate barium sulphate precipitate, wherein reaction is quick and intense, then filtering and drying are carried out, so that flaky nano barium sulphate with fine grain size, uniform grain size distribution and stable performance are obtained, and the flaky nano barium sulphate can effectively reflect infrared rays in the sunlight and transmit visible lights when being applied to transparent reflective thermal insulation coating, so that transmitting and thermal insulating functions are realized. The preparation method of the nano barium sulphate is simple, reliable, high in efficiency and good in effect, product quality is stable, and industrial production can be easily realized.

Description

technical field [0001] The invention relates to the field of inorganic non-metallic mineral materials, in particular to a preparation method and application of nanometer barium sulfate. Background technique [0002] Barium sulfate is one of the most important inorganic chemical products nowadays. It has the advantages of strong chemical inertness, good stability, acid and alkali resistance, moderate hardness, high specific gravity, high whiteness, and ability to absorb harmful rays. It is widely used in rubber, plastics, coatings, It is widely used in medicine and other industries, and is also used as a weighting agent for oil and natural gas drilling mud. [0003] With the development and utilization of new functional devices and the vigorous development of the material industry, barium sulfate, as an important raw material in many industries, has not only expanded its application fields, but also significantly increased its quality requirements. In recent years, many coun...

Claims

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Application Information

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IPC IPC(8): C25B1/18C09D5/33
Inventor 陈庆李兴文
Owner GUANGDONG YUFENG POWDER MATERIAL
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