Separation and purification method of acetylacetone salt and solvent used by separation and purification method

A technology for the separation and purification of acetylacetonate salts, applied in the separation/purification of carbonyl compounds, organic chemistry, etc., can solve problems such as the impact on the purity of acetylacetonate salts, and achieve a simple and effective process and principle, good effect, and conducive to green production Effect

Inactive Publication Date: 2017-10-20
ANHUI JIAXIAN FUNCTIONAL AUXILIARY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the production of acetylacetonate by the liquid phase method often produces hydroxide precipitation and metal oxide impurities mixed in the acetylacetonate, which has a serious impact on the purity of the acetylacetonate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, a kind of separation and purification method of acetylacetonate and the solvent used therefor

[0041] A method for separating and purifying acetylacetonate, prepared from the following component raw materials by weight:

[0042] 20 parts by mass of calcium acetylacetonate crude product: main solvent: 39 parts by mass of benzyl alcohol; 20 parts by mass of toluene; auxiliary solvent: 20 parts by mass of acetone; solubilizer: 0.4 parts by mass of sodium lauryl sulfate; dispersant: polyethylene glycol 0.3 parts by mass; stabilizer: light stabilizer 2002 0.3 parts by mass.

[0043] Its preparation method comprises the following steps:

[0044] (1) Ingredients: Measure each component according to the formula.

[0045] (2) Prepare a mixed solvent system: at 50 °C, add benzyl alcohol, methanol and acetone to the reactor in turn and stir. After fully mixed, add polysorbate, polyethylene glycol and photostable Agent 2002, stir well.

[0046] (3) Add a certain ...

Embodiment 2

[0049] Embodiment 2, a kind of separation and purification method of acetylacetonate and the solvent used therefor

[0050] A method for separating and purifying acetylacetonate, prepared from the following component raw materials by weight:

[0051]Crude zinc acetylacetonate 20: main solvent: benzyl alcohol 39; methanol 20; auxiliary solvent: acetone 20; solubilizer: polysorbate 0.4; dispersant: polyacrylamide 0.3; stabilizer: light stabilizer NBC 0.3.

[0052] Its preparation method comprises the following steps:

[0053] (1) Ingredients: Measure each component according to the formula.

[0054] (2) Prepare a mixed solvent system: at 50°C, add benzyl alcohol, methanol, and acetone to the reactor in turn and stir. After being fully mixed, add polysorbate, polyethylene glycol, and light-stabilized Agent NBC, stir well.

[0055] (3) Add a certain amount of crude zinc acetylacetonate into the mixed solvent system at 50°C, dissolve for 12 hours under stirring, then filter the ...

Embodiment 3

[0058] Embodiment 3, a kind of separation and purification method of acetylacetonate and the solvent used therefor

[0059] A method for separating and purifying acetylacetonate, prepared from the following component raw materials by weight:

[0060] 20 parts by mass of magnesium acetylacetonate: main solvent: 39 parts by mass of ethanol; 20 parts by mass of dichloromethane; auxiliary solvent: 20 parts by mass of acetone; solubilizer: 0.4 parts by mass of polysorbate; dispersant: 0.3 parts by mass of polyethylene glycol parts; stabilizer: 0.3 parts by mass of light stabilizer NBC.

[0061] Its preparation method comprises the following steps:

[0062] (1) Ingredients: Measure each component according to the formula.

[0063] (2) Prepare a mixed solvent system: at 50°C, add ethanol, dichloromethane and acetone to the reactor in turn and stir. After mixing well, add polysorbate, polyethylene glycol and light in turn under stirring conditions. Stabilizer NBC, stir well.

[00...

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Abstract

The invention relates to a separation and purification method of acetylacetone salt and a solvent used by the separation and purification method. The solvent comprises 30-70 parts of main solvent, 10-20 parts of auxiliary solvent, 0.1-1 part of solubilizer, 0.1-1 part of dispersing agent and 0.1-1 part of stabilizer. The separation and purification method includes the steps of firstly, sequentially adding the main solvent and the auxiliary solvent into a reaction container, stirring, sequentially adding the dispersing agent, a cosolvent and the stabilizer while stirring after the main solvent and the auxiliary solvent are evenly mixed, and evenly mixing to obtain a mixed solvent system; secondly, adding crude acetylacetone salt into the mixed solvent system obtained in the first step to dissolve the crude acetylacetone salt, and filtering the solution to obtain filtrate; thirdly, distilling of the filtrate to obtain solid, namely pure acetylacetone salt. The purity of the acetylacetone salt separated and purified by the method can reach above 99%.

Description

technical field [0001] The invention belongs to the technical field of separation and purification of reaction products, and in particular relates to a separation and purification method of acetylacetonate salt and a solvent used therefor. Background technique [0002] In the industrial production of today's society, acetylacetone is more and more used in the research of chemical industry, medicine, petroleum, energy and other aspects due to its special structure and properties. Up to now, through the hard work of many scientists and chemists, a variety of acetylacetonate metal salts have been developed. [0003] Metal-organic compounds of acetylacetonate have now become an important class of organic raw materials. Due to the special structure and properties of acetylacetonate salts, they are more and more used in modern industrial production in medicine, chemical industry, energy, environment, etc. . In general production, acetylacetonate is not only a kind of catalyst wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/80C07C49/92
CPCC07C45/80C07C49/92
Inventor 陈祥迎李兑李晓斌黄先胜胡程程李平陈新华王艳
Owner ANHUI JIAXIAN FUNCTIONAL AUXILIARY
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