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Synthetic method of aluminium zinc phosphate nanocrystal

A technology of nano-crystals and zinc-aluminum phosphate, applied in the direction of phosphorus compounds, nanotechnology, nanotechnology, etc., can solve the problems of difficult control of product particle size, harsh process conditions, and difficulty in large-scale production, so as to overcome the problem of step-by-step precipitation and emission Large amount, easy to control the effect

Inactive Publication Date: 2011-10-26
广西冶金研究院有限公司 +1
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  • Abstract
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Problems solved by technology

[0009] In the method for the synthesis of zinc aluminum phosphate reported above, with zinc oxide and aluminum hydroxide as zinc source and aluminum source, the liquid phase reaction method cost of phosphoric acid as phosphorus source is higher, and the particle size of product is difficult for regulation; Although hydrothermal synthesis method Microcrystalline zinc-aluminum phosphate can be obtained, but the process conditions are harsh, and it is difficult to achieve large-scale production; the preparation of zinc-aluminum phosphate by the sol-gel method also has the disadvantage of harsh process conditions and is not easy to achieve large-scale production

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  • Synthetic method of aluminium zinc phosphate nanocrystal

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Effect test

Embodiment 1

[0027] Preparation of Zn 1.5 al 1.0 (PO 4 ) 2

[0028] ZnSO 4 ·7H 2 O powder 15.0mol, is 4313.3g, aluminum nitrate Al(NO 3 ) 3 9H 2 O powder 10.0mol is 3751.3g, sodium phosphate Na 3 PO 4 12H 2O powder 23.0mol is 8742.1g, polyethylene glycol-400 is 258g. Add sodium phosphate powder into an enamel container, then add polyethylene glycol-400 and mix evenly for later use, then add sodium phosphate powder mixed with polyethylene glycol-400 under stirring at room temperature and normal pressure The above-mentioned zinc salt powder and aluminum salt powder, after adding and mixing evenly, move it into the grinding equipment and grind it for 40 minutes, let it stand at room temperature for 1.5 hours, wash the reaction mixture with water until the filtrate is mixed with 0.5mol L -1 BaCl 2 The solution does not detect SO 4 2- filter under reduced pressure. Drying the filter cake at 100 DEG C for 2-4 hours, grinding the dried filter cake into powder to obtain zinc alumin...

Embodiment 2

[0030] Preparation powder Zn 1.5 al 1.0 (PO 4 ) 2

[0031] ZnSO 4 ·7H 2 O powder 15.0mol is 4313.3g, aluminum chloride AlCl 3 ·6H 2 O powder 10.0mol is 2414.3g, sodium phosphate Na 3 PO 4 12H 2 O) Powder 23.0 mol is 8742.1 g, OP-10 is 338 g. Add sodium phosphate powder into an enamel container, then add OP-10 and grind and mix evenly for later use, then add the above-mentioned zinc salt to the sodium phosphate powder that is ground and mixed with OP-10 under stirring at room temperature and normal pressure Powder, aluminum salt powder, after adding and mixing evenly, move it into the grinding equipment and grind it for 50 minutes, let it stand at room temperature for 1.5 hours, wash the reaction mixture with water to the filtrate with 0.5mol L -1 BaCl 2 The solution does not detect SO 4 2- filter under reduced pressure. Drying the filter cake at 100° C. for 3-4 hours, grinding the dried filter cake into powder to obtain zinc aluminum phosphate nano crystals, the...

Embodiment 3

[0033] Preparation of Zn 1.5 al 1.0 (PO 4 ) 2

[0034] ZnSO 4 ·7H 2 O powder 15.0mol is 4313.3g, aluminum nitrate Al(NO 3 ) 3 9H 2 O powder 10.0mol is 3751.3g, sodium hydrogen phosphate Na 2 HPO 4 12H 2 O powder 25.0mol is 9628.5g, Tween-80 is 131g, and triethanolamine hydrochloride is 131g. Add sodium hydrogen phosphate powder into an enamel container, then add half of Tween-80 and half of triethanolamine hydrochloride and mix well, set aside. In another enamel container, fully mix zinc sulfate powder and aluminum nitrate powder, then add the other half of Tween-80 and the other half of triethanolamine hydrochloride, mix evenly, and set aside. Then, at room temperature and normal pressure, add the above-mentioned mixture of zinc salt powder and aluminum salt powder to sodium hydrogen phosphate under stirring. Wash the reaction mixture to the filtrate with 0.5mol L -1 BaCl 2 The solution does not detect SO 4 2- filter under reduced pressure. Drying the filter...

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Abstract

A synthetic method of an aluminium zinc phosphate nanocrystal adopts a direct synthetic method of low-heating solid-state chemical reaction, uses zinc salt powder, aluminium salt powder, and phosphate powder as raw materials, and comprises the following steps: adding a template, mixing and grinding under a condition with room temperature and normal pressure, allowing the reaction mixture to standat a temperature from room temperature to 90 DEG C, washing the reaction mixture with water to remove by products of soluble inorganic salts, filtering, drying the filter cake at 100 DEG C to obtain a product of a zinc phosphate nanocrystal with a microcrystal particle size of 35 nm. Compared with the prior art, the aluminium zinc phosphate product obtained by the method of the invention has better corrosion inhibition performance than traditional zinc phosphate or aluminium phosphate products, and is a antirust material with excellent performance. Additionally, the method has the advantages of no solvent required, mild reaction conditions, easy control, simple process, extensive raw material sources, etc.

Description

technical field [0001] The invention relates to a synthesis method of a zinc-aluminum phosphate crystal material, in particular to a synthesis method of a zinc-aluminum phosphate nanocrystal. Background technique [0002] Zinc phosphate is a well-known anti-rust pigment. Its main advantages are: good performance, non-toxic, white or light color, low refractive index, so it is very easy to color; it can be dispersed in various bases such as oleoresin and water. Among the materials; the coating prepared with it has good construction performance, and can have strong adhesion with the metal substrate or with the topcoat film; the raw material is easy to get, and the price is moderate. Therefore it is promoted as an alternative pigment. However, the antirust activity of standard zinc phosphate is insufficient, mainly due to the low solubility and poor hydrolysis of this pigment. Therefore, it is difficult to fully replace traditional toxic anti-rust pigments with standard zinc ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/45B82Y30/00B82Y40/00
Inventor 黄进文刘晨吴文伟苏鹏廖森樊艳金吴学航陈科云詹海鸿刘泽白盈盈范庆丰李婷罗思强黄强宋宇满露梅
Owner 广西冶金研究院有限公司
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