Method for preparing environment-friendly novel disperse blue 2BLN

A new type of disperse blue technology, applied in amino-hydroxyanthraquinone dyes and other directions, can solve the problems of complex preparation method, many raw materials, insufficient product color and luster, and achieve the effect of high product purity and improved color fastness.

Inactive Publication Date: 2013-12-11
HANGZHOU DIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method described in this method is relatively complicated, and there are many raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: a kind of preparation method of environmental protection novel disperse blue 2BLN, carry out according to the following steps:

[0026] (1), prepare crude nitration material:

[0027] Put 2 parts of nitric acid and 1 part of sulfuric acid in the reaction pot first, start stirring, the stirring speed is 60r / m, after the stirring is finished, turn on the jacketed frozen water to cool down, so that the temperature in the reaction pot is reduced to 10°C, and the cooling speed is 5°C / m, then put 1 part of anthraquinone into the reaction pot, the temperature when the anthraquinone is put in is 30°C, after the feeding is completed, it is kept at a temperature of 35°C for 3 hours, after the heat preservation is completed, start to add water to dilute, and close the Stir to filter, wash, and remove materials to obtain 1.8 parts of crude nitrated materials;

[0028] (2), preparation of refined materials:

[0029] Add 8 parts of clear water in the reaction pot, st...

Embodiment 2

[0042] Embodiment 2: a kind of preparation method of environmental protection novel disperse blue 2BLN, carry out according to the following steps:

[0043] (1), prepare crude nitration material:

[0044]Put 2 parts of nitric acid and 1 part of sulfuric acid in the reaction pot first, start stirring, the stirring speed is 60r / m, after the stirring is finished, turn on the jacketed frozen water to cool down, so that the temperature in the reaction pot is reduced to 20°C, and the cooling speed is 5°C / m, then put 1 part of anthraquinone into the reaction pot, the temperature when the anthraquinone is put in is 35°C, after the feeding is completed, keep it at 40°C for 3 hours, after the heat preservation is over, start to add water to dilute, and close the Stir to filter, wash, and disassemble to obtain 1.8 parts of crude nitrated material;

[0045] (2), preparation of refined materials:

[0046] Add 8 parts of clear water in the reaction pot, start stirring, then add 1 part of...

Embodiment 3

[0059] Embodiment 3: a kind of preparation method of environmental protection novel disperse blue 2BLN, carry out according to the following steps:

[0060] (1), prepare crude nitration material:

[0061] Put 2 parts of nitric acid and 1 part of sulfuric acid in the reaction pot first, start stirring, the stirring speed is 60r / m, after the stirring is finished, open the jacketed chilled water to cool down, so that the temperature in the reaction pot is reduced to 30°C, and the cooling speed is 5°C / m, then put 1 part of anthraquinone into the reaction pot, the temperature when the anthraquinone is put in is 40°C, after the feeding is completed, keep it at a temperature of 45°C for 3 hours, after the heat preservation is over, start to add water to dilute, and close the Stir to filter, wash, and disassemble to obtain 1.8 parts of crude nitrated material;

[0062] (2), preparation of refined materials:

[0063] Add 8 parts of clear water in the reaction pot, start stirring, th...

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PUM

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Abstract

The invention relates to disperse blue 2BLN, in particular to a method for preparing environment-friendly novel disperse blue 2BLN. The method is mainly applied to printing and dying industries, production industries and chemical industries. The method comprises the following steps: preparing a crude nitrified material, preparing a refined material, preparing a phenoxy object, preparing a binitro object, preparing a hydrolysate, preparing a reduzate, preparing a bromide and preparing a finished product. A product, prepared by using the method for preparing the environment-friendly novel disperse blue 2BLN, is high in purity, and the color brightness, the dispersing capability and the color fastness of the product are improved.

Description

technical field [0001] The invention relates to a disperse blue 2BLN, in particular to a preparation method of an environmentally friendly new disperse blue 2BLN, which is mainly used in the printing and dyeing industry, production industry and chemical industry. Background technique [0002] The raw materials involved in the disperse blue 2BLN production process in the prior art utilize the methanol process, which will cause the product to contain a methyl component structure, that is, the by-product 35# blue will be produced, and this product is a prohibited product. Sodium hypochlorite is used to assist bromination in the bromination process, so that the color cannot be improved. [0003] Chinese patent 201210158784.1 discloses a preparation method of disperse blue 2BLN, which is prepared by stirring and reacting the following raw materials in parts by weight: disperse blue SE-2R: 580-630kg, disperse blue BBLS: 190-220kg, disperse blue S-BL: 50 -60kg, disperse violet E-...

Claims

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Application Information

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IPC IPC(8): C09B1/50
Inventor 高水林
Owner HANGZHOU DIKAI CHEM
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