Preparation method of vat dark blue BO capable of reducing discharge of the three wastes

An emission, dark blue technology, applied in the direction of dibenzoxanthrone/isobenzoxanthrone dyes, etc., can solve the problems of complex process steps, three-waste pollution, large water consumption, etc., to speed up the reaction rate and improve the dyeing performance. , the effect of low energy consumption

Inactive Publication Date: 2020-02-11
安徽融创化工科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the vat blue BO dye is an anthrone vat dye. As a vat dye with a large production and sales volume, the production and preparation process still has problems such as complicated process steps, serious pollution of three wastes, large water consumption, and high cost.

Method used

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  • Preparation method of vat dark blue BO capable of reducing discharge of the three wastes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for preparing reduced dark blue BO capable of reducing the discharge of three wastes, comprising the following steps:

[0015] (1) Weigh 0.5 kg of europium oxide and 1.5 kg of silicon oxide, grind and mix them, place them in a resistance furnace preheated to 330°C, raise the temperature to 750°C at a rate of 7°C / min, keep the heat for 90 minutes, and cool naturally to After room temperature, the modified composite ceramic powder is obtained by grinding, the condensation kettle is cleaned and dried, and 450 kg of triethylene glycol and the prepared modified composite ceramic powder are added into the kettle from the metering tank. The particle size of the modified composite ceramic powder is Between 10-15 nanometers; start stirring, put 72 kg of anhydrous sodium acetate and 520 kg of potassium hydroxide into a 2000L condensation pot in turn under stirring conditions, heat up to 103°C with 0.24MPa steam to liquefy the alkali for 45 minutes, let the alkali Fully m...

Embodiment 2

[0019] A method for preparing reduced dark blue BO capable of reducing the discharge of three wastes, comprising the following steps:

[0020] (1) Weigh 0.55kg of europium oxide and 1.8kg of silicon oxide, grind and mix them, place them in a resistance furnace preheated to 340°C, raise the temperature to 760°C at a rate of 7.5°C / min, keep the heat for calcination for 95 minutes, and cool naturally to Grinding after room temperature to obtain modified composite ceramic powder, the particle size of the modified composite ceramic powder is between 10-15 nanometers, the condensation kettle is cleaned and dried, and 455 kilograms of triethylene glycol is added into the kettle from a metering tank to prepare The obtained modified composite ceramic powder was started to stir, and under stirring conditions, 73 kg of anhydrous sodium acetate and 525 kg of potassium hydroxide were successively put into a 2000L condensation pot, and heated to 104°C with 0.25MPa steam to make alkali for 48...

Embodiment 3

[0024] A method for preparing reduced dark blue BO capable of reducing the discharge of three wastes, comprising the following steps:

[0025](1) Weigh 0.6 kg of europium oxide and 2.0 kg of silicon oxide, grind and mix them, place them in a resistance furnace preheated to 350 °C, raise the temperature to 780 °C at a rate of 8 °C / min, keep the heat for 100 minutes, and cool naturally to After grinding at room temperature, the modified composite ceramic powder is obtained. The particle size of the modified composite ceramic powder is between 10-15 nanometers. The condensation kettle is cleaned and dried, and 460 kilograms of triethylene glycol and the prepared Modified composite ceramic powder, start stirring, put 74 kg of anhydrous sodium acetate and 530 kg of potassium hydroxide into a 2000L condensation pot in turn under stirring conditions, use 0.26MPa steam to heat up to 105°C for 50 minutes to dissolve the alkali, let the alkali fully melt , the temperature is raised to 1...

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Abstract

The invention relates to the technical field of new material processing, and discloses a preparation method of vat dark blue BO capable of reducing discharge of the three wastes. By studying vat dyesand a dyeing principle, the problems that the condition requirements are high and color fading is prone to occurring during vat dark blue BO dyeing are solved from internal factors, and the comprehensive treatment of pollutants generated in the manufacturing process is improved; and in the vat dark blue BO production process, europium oxide and monox are added to prepare modified composite ceramicpowder, alcohol ketone condensation reaction is performed, process conditions of each step are closely controlled, the reaction rate can be accelerated, the reaction temperature is reduced, the prepared dye particles are small, the surface area is large, crystals are not prone to being formed during dyeing, the dyeing performance is significantly improved, the dyeing intensity of the vat dark blue BO dye prepared by processing is significantly improved, the comprehensive utilization rate of processing raw materials is improved, the cost is reduced, and the recycling performance of recycle rawmaterials is improved.

Description

technical field [0001] The invention belongs to the technical field of new material processing, and in particular relates to a method for preparing reduced deep blue BO capable of reducing the discharge of three wastes. Background technique [0002] Vat dyes refer to being reduced under alkaline conditions to color the fibers, and then oxidized to restore the original insoluble dyes on the fibers for dyeing cellulose fibers; the insoluble vat dyes are made into sodium sulfate esters, It can be turned into a soluble vat dye. It is mainly used for dyeing cotton fabrics and polyester-cotton blended fabrics. It is a very important dye for cellulose fiber dyeing. It is also a commonly used dye for dyeing other cellulose fibers such as viscose fiber and vinylon. The dyeing principle is: when dyeing, the dye is first reduced to a soluble leucosome sodium salt under the action of a strong reducing agent and alkali, which has affinity for cellulose fibers and can dye fibers. After t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B3/22C09B3/24
CPCC09B3/22C09B3/24
Inventor 张建威代余容钟鹏飞胡梦刚
Owner 安徽融创化工科技股份有限公司
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