Device and method for preparing nano-kaolin

A nano-kaolin, preparation device technology, applied in chemical instruments and methods, nanotechnology, inorganic chemistry and other directions, can solve problems such as unfavorable industrial production, high cost, low yield, etc., achieve good peeling effect, good crystal structure, The effect of excellent performance

Pending Publication Date: 2017-12-15
SHANXI JUFENG GAOLIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a preparation device and method for nano kaolin, and solve the technical problems of high cost, low output rate and unfavorable industrial production in the existing preparation process of nano kaolin

Method used

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  • Device and method for preparing nano-kaolin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, a nano-kaolin preparation device, wherein: including a carbon dioxide storage tank 1, a carbon dioxide heat exchanger 2, a buffer tank 3, a high-speed stirring tank 4, a collection tank 5, a high-pressure pump 6 and an oil pump 7;

[0022] The carbon dioxide heat exchanger 2 is provided with a heating pipe 8, and the bottom of the carbon dioxide heat exchanger 2 is provided with a safety valve; the outer wall of the buffer tank 3 is provided with a buffer tank heat exchange jacket 9, and the bottom of the buffer tank 3 is provided with a There is a pressure relief valve; the outer wall of the high-speed stirring tank 4 is provided with a stirring tank heat exchange jacket 10, the inside of the high-speed stirring tank 4 is provided with a stirring device 16, and the top of the high-speed stirring tank 4 is provided with a feed port 11 and pressure Count 15, the bottom of the high-speed mixing tank 4 is provided with a discharge port 12, the di...

Embodiment 2

[0033] Adopt the method for preparing nano-kaolin by the preparation device of nano-kaolin as described in Example 1, may further comprise the steps:

[0034] 1) Add appropriate amount of kaolin, intercalation agent and surface modifier into the high-speed stirring tank 4;

[0035] 2) The carbon dioxide gas in the carbon dioxide storage tank 1 is pressurized by the high-pressure pump 6 and enters the carbon dioxide heat exchanger 2, and the carbon dioxide gas enters the buffer tank 3 after being heated to 120°C in the carbon dioxide heat exchanger 2, and then enters the high-speed stirring tank 4;

[0036] 3) After the pressure in the high-speed stirring tank 4 reaches 20Mpa and the temperature reaches 120°C, start the stirring device 16 for stirring, the stirring speed is 800r / min, and the stirring time is 60min;

[0037] 4) After the stirring is completed, the discharge valve 13 is opened, and the material is discharged into the collection tank 5 through the discharge nozzle...

Embodiment 3

[0039] Adopt the method for preparing nano-kaolin by the preparation device of nano-kaolin as described in Example 1, may further comprise the steps:

[0040] 1) Add appropriate amount of kaolin, intercalation agent and surface modifier into the high-speed stirring tank 4;

[0041] 2) The carbon dioxide gas in the carbon dioxide storage tank 1 is pressurized by the high-pressure pump 6 and enters the carbon dioxide heat exchanger 2, and the carbon dioxide gas enters the buffer tank 3 after being heated to 100°C in the carbon dioxide heat exchanger 2, and then enters the high-speed stirring tank 4;

[0042] 3) After the pressure in the high-speed stirring tank 4 reaches 15Mpa and the temperature reaches 100°C, start the stirring device 16 for stirring, the stirring speed is 600r / min, and the stirring time is 40min;

[0043] 4) After the stirring is completed, the discharge valve 13 is opened, and the material is discharged into the collection tank 5 through the discharge nozzle...

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Abstract

The invention relates to a device and method for preparing nano-kaolin, and belongs to the technical field of nano-kaolin, mainly aiming at solving the technical problems of high cost, low output and industrial production disadvantage in the existing process of preparing nano-kaolin. According to the technical scheme, the device comprises a carbon dioxide storage tank, a carbon dioxide heat exchanger, a buffer tank, a high-speed stirring tank, a collection tank, a high-pressure pump and an oil pump, wherein a heat tube is arranged in the carbon dioxide heat exchanger; a buffer tank heat exchange jacket is arranged on the outer wall of the buffer tank; a stirring tank heat exchange jacket is arranged on the outer wall of the high-speed stirring tank; a stirring device is arranged in the high-speed stirring tank; a material inlet and a pressure meter are arranged at the top of the high-speed stirring tank; a material outlet is formed in the bottom of the high-speed stirring tank; a discharge valve and a discharge nozzle are arranged at the material outlet; and the collection tank is arranged under the discharge nozzle.

Description

technical field [0001] The invention belongs to the technical field of nano kaolin, in particular to a preparation device and method of nano kaolin. Background technique [0002] Kaolin has a variety of uses. With the development of economy, the demand for kaolin in all walks of life is increasing rapidly, and the quality requirements for kaolin are getting higher and higher. Ordinary kaolin can no longer meet the needs of industry. The comprehensive development and utilization of kaolin resources has potential It must be done. Due to its small particle size, uniform shape, large specific surface area, and good dispersibility in water, nano-kaolin has broad application prospects in the fields of rubber, plastics, paper, ink, coatings, nano-tiles, and chemical fibers. [0003] Existing nano-kaolin preparation methods include mechanical pulverization, classification, and chemical synthesis, but most of them have disadvantages such as high cost, low yield, and unfavorable indu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/44C01B33/40B82Y40/00
CPCB82Y40/00C01B33/40C01B33/44C01P2004/64
Inventor 琚志伟张振秀马国章
Owner SHANXI JUFENG GAOLIN CO LTD
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