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Water-soluble anthraquinone composition

A composition and water-soluble technology, applied in quinone separation/purification, organic chemistry, organic chemical methods, etc., can solve the problem of low solubility of anthraquinone, and achieve the effect of promoting dissolution and small particle size

Active Publication Date: 2016-08-24
吉林紫瑞新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a water-soluble anthraquinone composition, which solves the problem of low solubility of anthraquinone and has the effect of improving the solubility of anthraquinone

Method used

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  • Water-soluble anthraquinone composition
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  • Water-soluble anthraquinone composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0030] Embodiment 1-3: a kind of pretreatment process of anthraquinone, it comprises the steps:

[0031] A. Take the synthesized anthraquinone or commercially available anthraquinone, raise the temperature to 40-50°C, add benzene until it just dissolves, heat filter to take the clear liquid, and concentrate the clear liquid to obtain an oil;

[0032] B. Take the oil obtained in step A, place it directly at -20~-10°C for quenching and directly add the water layer of -20~-10°C water / methyl tert-butyl ether saturated solution (including 0.1wt% to 0.5wt% of PAA), stirred, a large amount of anthraquinone was precipitated, filtered and the filter cake was washed with water at 0-5°C, and dried to constant weight.

[0033] The raw material information of table 1 embodiment 1-3

[0034]

Embodiment 4-6

[0035] Embodiment 4-6: a water-soluble anthraquinone composition, which is prepared by the following steps:

[0036] Take the pretreated dry product of anthraquinone, add dispersant, anti-sedimentation agent, defoamer, organic solvent, water and polymer, stir and disperse to obtain a suspension;

[0037] Use a peristaltic pump to pump the suspension to a spray dryer at a speed of 0.5-2mL / min for spray drying.

[0038] The raw material information of table 2 embodiment 4-6

[0039]

Embodiment 7

[0040] Example 7: A water-soluble anthraquinone composition, the difference from Example 6 is that no PAA is added.

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PUM

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Abstract

The invention discloses a water-soluble anthraquinone composition. The water-soluble anthraquinone composition is prepared from, by mass, 1% of anthraquinone, 0.5%-1.5% of dispersing agent, 0.3%-0.5% of anti-precipitation agent and 0.1%-0.3% of defoaming agent. The water-soluble anthraquinone composition has the effect of improving the anthraquinone solubility.

Description

technical field [0001] The invention relates to a water-soluble anthraquinone composition. Background technique [0002] Anthraquinone (Anthraquinone, C 14 h 8 o 2 ), is an important chemical intermediate, widely used in the fields of dyes, medicines and pesticides. With the development of anthraquinone's application field, its demand is also increasing. At present, anthraquinone is relatively tight in the international and domestic markets. The huge market demand for anthraquinone has brought spring to the development of anthraquinone. [0003] The publication number is CN1683305A, and the Chinese patent on October 19, 2005 discloses a method for ring-closing synthesis of anthraquinone from o-benzoylbenzoic acid. The method comprises the following steps: [0004] A, drop o-benzoylbenzoic acid in the closed-loop reactor, heat up and keep warm until the surface moisture of o-benzoylbenzoic acid is evaporated to dryness according to the conventional process; [0005] B. ...

Claims

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Application Information

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IPC IPC(8): C07C50/18C07C46/10
CPCC07B2200/13C07C46/10C07C50/18
Inventor 吴洪兴翟金希孙凤祥徐兴度徐勇匡新杰谭政汤晓华
Owner 吉林紫瑞新材料有限公司
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