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Chrysene refining method

A refining method and solid technology, which is applied in the refining field of Qu, can solve the problems of restricting the application of Qu, and achieve the effect of mild conditions, simple refining method and good separation effect

Inactive Publication Date: 2013-02-13
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method can only get quinoa with a purity of 85% to 90%, which limits the application of quinoa.

Method used

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Effect test

specific Embodiment approach 1

[0011] Specific embodiment one: the refining method of a kind of bentonite of present embodiment is carried out according to the following steps:

[0012] 1. Mix the raw materials with acid and pickle, filter to obtain a solid after cooling down to room temperature, wash the obtained solid with distilled water, filter and dry; wherein, the acid is one of acetic acid, sulfuric acid, nitric acid, hydrochloric acid and phosphoric acid A mixture of one or more kinds, the pickling condition is a temperature of 20°C to 110°C, pickling for 1 to 10 hours, and the mass ratio of the raw material to the acid is 1: (2 to 30);

[0013] 2. Mix the dried solid with a benzene solvent, heat to the boiling point of the solvent, then cool to room temperature, precipitate the solid, filter and dry, then mix the dried solid with a benzene solvent again, and heat to Solvent boiling point, then cooled to room temperature, precipitated solid, filtered and dried to obtain silver-white flaky crystals, ...

specific Embodiment approach 2

[0016] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the mass volume ratio of solid and distilled water is 1g: (3~10) mL when washing with distilled water in step one. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0017] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the drying conditions in Step 1 and Step 2 are 70-150° C. for 3-20 hours. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

[0018] Verify beneficial effect of the present invention by following test:

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Abstract

The invention relates to a chrysene refining method and aims to provide a chrysene refining method aiming at the problem that the chrysene purity is low and the chrysene application is limited in the traditional method. The method comprises the following steps of: 1, mixing raw material chrysene and acid for pickling, cooling to room temperature, filtering to obtain solid, washing the solid through distilled water, filtering and drying; and 2, mixing the dried solid and benzene solvents, repeatedly crystallizing twice, and finishing chrysene refining. According to the method, the product with the purity more than 98 percent can be obtained, and the method is applied to the field of luminous materials.

Description

technical field [0001] The present invention relates to the refining method of Qu. Background technique [0002] Qu is a kind of polycyclic aromatic hydrocarbons, distilled from coal char or warm pitch. Qu is white or silvery-gray, yellow-green scaly or rhombohedral crystal, which shows strong ultraviolet fluorescence under ultraviolet light. A series of derivatives obtained by modifying the 6-position and 12-position of Qu are blue-light materials with high luminous efficiency and good stability. Qu derivatives have good market prospects whether they are used as the main luminescent material or doped. The traditional method can only get quinoa with a purity of 85% to 90%, which limits the application of quinoa. Contents of the invention [0003] The present invention aims to solve the problem of the low purity of the quill obtained by the traditional method, which limits the application of the quill, and provides a refining method of the quill. [0004] A kind of refi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C15/38C07C7/17C07C7/14
Inventor 徐虹白雪峰吕宏飞李猛
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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