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Preparation method of nano barium carbonate slurry

A nano-barium carbonate, barium carbonate technology, applied in directions such as barium carbonate, calcium carbonate/strontium/barium, nanotechnology, etc., can solve the problems of low use efficiency, low reaction rate, inability to effectively remove sodium chloride sulfate, etc., To achieve the effect of improving the efficiency of use

Active Publication Date: 2018-05-29
云浮鸿志新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the nano-barium carbonate slurry prepared by the prior art is used to prepare nano-barium sulfate, the reaction rate is low, and the sulfate radical in the sodium chloride brine cannot be effectively removed, and the use efficiency in the brine impurity removal application is low

Method used

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  • Preparation method of nano barium carbonate slurry
  • Preparation method of nano barium carbonate slurry
  • Preparation method of nano barium carbonate slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Use the stainless steel mixing tank of 200L, add barium carbonate 100Kg (the average particle diameter that Guizhou Hongxing produces is the light barium carbonate of 2.67 μm), add 100 kilograms of deionized waters, add 2 kilograms of pentaerythritol again, stir evenly in the stainless steel mixing bucket, Then in the 1-4# ceramic horizontal sand mill (Peller nano sand mill PHN-10) that is pumped into 10L serial mode setting successively with metering pump, in the ceramic horizontal sand mill, be added with zirconia beads ( Zirmil Y produced by Saint-Gobain Sip), wherein 1-2# sand mills add zirconia balls with a particle size of 800-1200 μm, 3-4# sand mills add zirconia balls with a particle size of 100-300 μm, and carbonic acid The barium slurry is firstly ground with the 1# sand mill, then the second level of grinding through the 2# sand mill, then the third level of grinding through the 3# sand mill, and finally the fourth level of grinding through the 4# sand mill. ...

Embodiment 2

[0022] With reference to Example 1, the difference is that pentaerythritol is replaced by sodium polyacrylate to obtain nanoscale barium carbonate slurry, and the particle size measurement results are shown in image 3 Among them, the average particle size is 96.6nm.

Embodiment 3

[0029] Referring to Example 1, the difference is that the pentaerythritol is 1 kg, and the flow rate of the metering pump is controlled at 2 L / min.

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Abstract

The invention discloses a preparation method of nano barium carbonate slurry. The preparation method comprises the following steps: uniformly stirring 1.0 to 1.8 micrometer barium carbonate, deionizedwater and pentaerythritol or sodium polyacrylate, then pumping a mixture into a ceramic horizontal grinding machine by utilizing a metering pump, grinding by using zirconium oxide beads with a bead particle size of 100 to 1200 micrometers, controlling a flow rate of the metering pump at 3L / min and a rotation speed of the grinding machine at 1450 r / min, thus obtaining the nano-scale barium carbonate slurry. By adopting the nano barium carbonate slurry obtained by the invention, the reaction rate of the barium carbonate and sulfate radicals when the nano barium sulfate is prepared can be apparently increased, the sulfate radicals in the sodium chloride saline water can be more effectively removed, the application efficiency of the barium carbonate in removing impurities of the saline watercan be effectively increased, the obtained nano barium carbonate is used as a raw material to prepare nano precipitate barium sulfate, the obtained nano precipitate barium sulfate powder is smaller inparticle size, and no soluble barium ions and chlorine ions can be detected in the nano precipitate barium sulfate powder.

Description

Technical field: [0001] The invention relates to a preparation method of nanometer barium carbonate slurry. Background technique: [0002] Nano barium carbonate is a kind of important inorganic chemical product, and the barium source of preparing barium carbonate is barium chloride, barium hydroxide etc., and carbon source mainly is carbon dioxide (liquid state), carbonate (hydrogen) salt etc.; Existing preparation method is : Reverse micelle method, liquid phase reaction controlled precipitation method and solid phase reaction method. However, when the nano-barium carbonate slurry prepared by the prior art is used to prepare nano-barium sulfate, the reaction rate is low, and the sulfate radical in the sodium chloride brine cannot be effectively removed, and the use efficiency in the brine impurity removal application is low. Invention content: [0003] The purpose of this invention is to provide a kind of preparation method of nano-barium carbonate slurry, the nano-bariu...

Claims

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Application Information

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IPC IPC(8): C01F11/18B82Y40/00
CPCB82Y40/00C01F11/188C01P2004/03C01P2004/62C01P2004/64
Inventor 方利浮
Owner 云浮鸿志新材料有限公司
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