Simple method and device for preparing coral strontium carbonate crystal

A strontium carbonate, coral-like technology is applied in the preparation of coral-like strontium carbonate crystals and the preparation field of coral-like strontium carbonate crystals, can solve the problems of harsh preparation conditions and complicated operations of strontium carbonate crystals, and achieves low raw material prices and high preparation efficiency. , the effect of high yield

Inactive Publication Date: 2019-01-11
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the disadvantages of the existing strontium carbonate crystals, such as harsh preparation conditions and complicated operation, the present invention proposes a simple method and device for preparing coral-like strontium carbonate crystals

Method used

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  • Simple method and device for preparing coral strontium carbonate crystal
  • Simple method and device for preparing coral strontium carbonate crystal
  • Simple method and device for preparing coral strontium carbonate crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1.80 kg of strontium chloride hexahydrate is placed in No. 1 material tank (4), and 1.93 kg of ammonium bicarbonate is placed in No. 2 material tank (5). Add 0.020% starch solution to No. 1 material tank (4) and No. 2 material tank (5) in sequence to 1 cm below the bottom edge of No. 1 overflow (1) and No. 2 overflow (3), and then pour into the crystal formation area Add 0.020% starch solution to the upper edge of No. 1 overflow (1) and No. 2 overflow (3); after 48 hours of reaction, filter the crystals generated in the reaction device, wash with distilled water 3 times, and dry at 105°C for 1 hour Coral-like strontium carbonate crystals composed of crystal rods were obtained. The diameter of the crystal rods was 100 nm to 200 nm, and the length was 0.6 µm to 2.0 µm. The purity of the product was ≥99%, and the yield was 96%.

[0017] The reaction device is: a cube reaction tank (6) with a side length of 60 cm and a volume of 216 L. The first material tank (4) and the s...

Embodiment 2

[0019] Place 1.80 kg of strontium chloride hexahydrate in the No. 1 material tank (4), and place 1.82 kg of ammonium bicarbonate in the No. 2 material tank (5). Add 0.020% starch solution to No. 1 material tank (4) and No. 2 material tank (5) in sequence to 1 cm below the bottom edge of No. 1 overflow (1) and No. 2 overflow (3), and then pour into the crystal formation area Add 0.020% starch solution to the upper edge of No. 1 overflow (1) and No. 2 overflow (3); after 48 hours of reaction, filter the crystals generated in the reaction device, wash with distilled water 3 times, and dry at 105°C for 1 hour Coral-like strontium carbonate crystals composed of crystal rods were obtained. The diameter of the crystal rods was 100 nm to 200 nm, and the length was 0.6 µm to 2.0 µm. The purity of the product was ≥99%, and the yield was 95%.

[0020] The reaction device is: a cube reaction tank (6) with a side length of 60 cm and a volume of 216 L. The first material tank (4) and the s...

Embodiment 3

[0022] Place 1.80 kg of strontium chloride hexahydrate in the No. 1 material tank (4), and place 2.04 kg of ammonium bicarbonate in the No. 2 material tank (5). Add 0.020% starch solution to No. 1 material tank (4) and No. 2 material tank (5) in sequence to 1 cm below the bottom edge of No. 1 overflow (1) and No. 2 overflow (3), and then pour into the crystal formation area Add 0.020% starch solution to the upper edge of No. 1 overflow (1) and No. 2 overflow (3); after 48 hours of reaction, filter the crystals generated in the reaction device, wash with distilled water 3 times, and dry at 105°C for 1 hour Coral-like strontium carbonate crystals composed of crystal rods were obtained. The diameter of the crystal rods was 100 nm to 200 nm, and the length was 0.6 µm to 2.0 µm. The purity of the product was ≥99%, and the yield was 97%.

[0023] The reaction device is: a cube reaction tank (6) with a side length of 60 cm and a volume of 216 L. The first material tank (4) and the s...

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Abstract

The invention relates to a simple method and a device for preparing a coral strontium carbonate crystal. The coral strontium carbonate crystal is prepared by using strontium chloride hexahydrate and ammonium bicarbonate as reactants and starch as a biomimetic assembly agent. The strontium chloride hexahydrate, ammonium bicarbonate and a starch solution are added into the designed reaction device,and are reacted at room temperature; a crystal generated in the device is filtered 48 h after the above reaction, is washed with distilled water three times, and then is dried at 105 DEG C for 1 h toobtain the coral strontium carbonate crystal composed of crystal rods. The diameter of every crystal rod is 100-200 nm, and the length is 0.6-2.0 [mu]m; and the purity of the product is equal to or more than 99%, and the yield is 95-97%. The method and the device have the characteristics of high preparation efficiency, environmental friendliness, low energy consumption, easiness in industrial production, and low production cost.

Description

technical field [0001] The invention relates to a simple method and device for preparing coral-like strontium carbonate crystals, in particular to a kind of preparation of coral-like Strontium carbonate crystals. The specific technical field of the invention is the preparation method of coral-like strontium carbonate crystals. Background technique [0002] Strontium carbonate crystals are widely used in glass, paint, electronics and other production fields. At present, the methods for preparing strontium carbonate crystals mainly include mechanochemical method, high gravity reaction precipitation method, solvothermal synthesis method and biomimetic self-assembly method. [0003] Among the existing methods for preparing strontium carbonate crystals, the mechanochemical method mostly adopts the method of fast and high-intensity mechanical mixing of two solutions to prepare strontium carbonate crystals, and then through a series of steps such as hydrolysis, evaporation, subli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18
CPCC01F11/187C01P2002/72C01P2004/03C01P2006/80
Inventor 刘俊辰钟学明徐玉娜
Owner NANCHANG HANGKONG UNIVERSITY
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