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Preparation method of flaky acetylacetone copper microcrystal

A technology of copper acetylacetonate and acetylacetone is applied in the field of preparation of flaky copper acetylacetonate crystallites, can solve the problems of low purity of copper acetylacetonate, cannot meet requirements, complicated preparation process, etc., achieves good dispersibility, meets requirements, The effect of simple process route

Inactive Publication Date: 2013-09-25
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper acetylacetonate produced by this method has low purity, high impurity content, complicated preparation process, and cannot meet the requirements of modern industry for copper acetylacetonate products.

Method used

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  • Preparation method of flaky acetylacetone copper microcrystal
  • Preparation method of flaky acetylacetone copper microcrystal
  • Preparation method of flaky acetylacetone copper microcrystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The metal copper substrate (99.9%, thickness 0.12 mm) was ultrasonically cleaned for 20 minutes, then cleaned with deionized water and absolute ethanol, and then dried at room temperature. Prepare a mixed solution of acetylacetone and ammonia water (30% m-mass concentration) at a molar ratio of 1:5, and the concentration of acetylacetone is 0.5 mol / L. The cleaned copper substrate was directly put into the mixed solution and reacted at 30 °C for 7 days. After the reaction was finished, the product was taken out, washed, put into an oven, and dried for 2 hours at 30 °C to obtain flaky copper acetylacetonate microcrystals.

Embodiment 2

[0028] The metal copper substrate (99.9%, thickness 0.12 mm) was ultrasonically cleaned for 20 minutes, then cleaned with deionized water and absolute ethanol, and then dried at room temperature. Prepare a mixed solution of acetylacetone and ammonia water (30% m) according to the molar ratio of 1:9, and the concentration of acetylacetone is 0.2 mol / L. The cleaned copper substrate was directly put into the mixed solution and reacted for 12 days at 25 °C. After the reaction is over, take out the product, wash it, put it in an oven, and dry it for 2 hours at 30°C to obtain flaky copper acetylacetonate microcrystals.

Embodiment 3

[0030] The metal copper substrate (99.9%, thickness 0.12 mm) was ultrasonically cleaned for 25 minutes, then cleaned with deionized water and absolute ethanol, and then dried at room temperature. Acetylacetone and ammonia water (30% m) were formulated into a mixed solution at a molar ratio of 1:3, and the concentration of acetylacetone was 0.4 mol / L. The cleaned copper substrate was directly put into the mixed solution and reacted for 15 days at 20 °C. After the reaction is over, take out the product, wash it, put it in an oven, and dry it for 2 hours at 30°C to obtain flaky copper acetylacetonate microcrystals.

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Abstract

The invention belongs to the field of inorganic non-metal materials, in particular relates to a preparation method of a flaky acetylacetone copper microcrystal. The preparation method comprises the following steps: based on a mixed solution of a metal copper substrate, acetylacetone and an oxidation accelerator as a raw material, firstly carrying out ultrasonic washing on a copper sheet; then directly putting the washed copper sheet in the mixed solution containing acetylacetone and reacting for 3-15 days at the temperature of 20-40 DEG C; and after the reaction is finished, washing and drying, so that the flaky acetylacetone copper microcrystal is prepared. The preparation method is characterized in that in the mixed solution of acetylacetone and oxidation accelerator, the oxidation accelerator is one or a mixture of more than two of ammonia water, formamide or urea. According to the invention, the process is simple and practicable, the prepared flaky acetylacetone copper microcrystal has high purify, low impurity content, low preparation cost and flaky topography, and the thickness of a slice ranges from 3mm to 8mm; and the flaky acetylacetone copper microcrystal obtained by the preparation method can be widely applied to the fields of chemical industry, national defense, electronic industry and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic non-metallic materials, in particular to a preparation method of flaky copper acetylacetonate microcrystals. Background technique [0002] Copper acetylacetonate, molecular formula: Cu(CH 3 COCHCOCH 3 ) 2 ; Molecular weight: 261.76; English name: Copper (II) acetylacetonate; CAS No: 13395-16-9. Copper acetylacetonate is an important inorganic salt product, which is widely used in chemical industry, national defense, electronic industry and other industries. It is often used as resin crosslinking agent and curing accelerator; rubber additive; fuel oil additive, which can improve lubricity and combustion, but cannot prevent carbon deposition, and is used as a catalyst for organic synthesis. [0003] At present, the main production methods at home and abroad are as follows: dissolve copper nitrate trihydrate in water, add concentrated ammonia water to make cuproammonia l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C49/92C07C49/14C07C45/77
Inventor 张杰许家胜邢锦娟刘琳钱建华
Owner BOHAI UNIV