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A kind of 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: 2018-09-28
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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  • A kind of water-soluble anthraquinone composition
  • A kind of water-soluble anthraquinone composition
  • A kind of water-soluble anthraquinone composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0030] Embodiment 1-3: An anthraquinone pretreatment process, which includes the following steps:

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

[0032] B. Take the oily substance obtained in step A, directly place it at -20~-10℃ to quench and add directly to the system the water layer of -20~-10℃ water / methyl tert-butyl ether saturated solution (including 0.1wt%-0.5wt% of PAA), stirring, quenching a large amount of anthraquinone, filtering and washing the filter cake with water at 0-5°C, and drying to constant weight.

[0033] Table 1 Raw material information of Examples 1-3

[0034]

Embodiment 4-6

[0035] Example 4-6: A water-soluble anthraquinone composition prepared by the following steps:

[0036] Take the pretreated anthraquinone dry product, add dispersant, anti-precipitation 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 0.5-2 mL / min for spray drying, which is then obtained.

[0038] Table 2 Raw material information of Examples 4-6

[0039]

Embodiment 7

[0040] Example 7: A water-soluble anthraquinone composition, which is different from Example 6 in that it does not add PAA.

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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 present invention relates to a water-soluble anthraquinone composition. Background technique [0002] Anthraquinone (C 14 H 8 O 2 ), is an important chemical intermediate and is widely used in dyes, medicines, pesticides and other fields. With the development of anthraquinone application fields, its demand is also increasing. Currently, anthraquinone is in short supply in both the international and domestic markets. The huge market demand for anthraquinone has brought spring to the development of anthraquinone. [0003] The Chinese patent with the publication number CN1683305A and the publication date of October 19, 2005 discloses a method for the closed-loop synthesis of anthraquinone from o-benzoyl benzoic acid. The method includes the following steps: [0004] A. Put the o-benzoyl benzoic acid into the closed-loop reaction kettle, heat it up according to the conventional process and keep it warm until the water on the surface of the o-benzo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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