Unlock instant, AI-driven research and patent intelligence for your innovation.

Solvent violet 59 condensation process

A solvent violet and process technology, applied in the field of dye refining, can solve the problems of poor coloring of inks and plastics, high production costs, multiple treatment of wastewater, etc., to reduce the generation of by-products, stabilize quality and yield, increase contact probability and active effect

Pending Publication Date: 2022-05-13
安徽清科瑞洁新材料有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the production cost of the existing condensation process is high, and there is a material flushing phenomenon, many by-products, a lot of waste water and difficult treatment, and poor coloring when used for ink and plastics.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solvent violet 59 condensation process
  • Solvent violet 59 condensation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a solvent violet 59 condensation process, specifically comprising the following steps:

[0025] In the enamel kettle of 3000L, add phenol 1500kg, 1,4-diamino-2,3-dichloroanthraquinone dry product 500kg, 42% potassium hydroxide 600kg, sodium dodecylbenzene sulfonate 2kg, after feeding finishes, After sealing, heat up to 190-192°C in 3 hours and keep it warm for condensation reaction for 3 hours. Take a sample to measure the end point. After the end point is reached, cool down to 150-152°C. At this temperature, add all the distillate, 400kg of 30% liquid caustic soda, and 350kg of water , and finally lower the temperature to 70-72° C., filter, wash, and dry to obtain 475 kg of solvent violet 59 finished product, with a yield of 96% and a content of 99.3%.

Embodiment 2

[0027] This embodiment provides a solvent violet 59 condensation process, specifically comprising the following steps:

[0028] Add 1700kg of phenol, 500kg of 1,4-diamino-2,3-dichloroanthraquinone dry product, 600kg of 44% potassium hydroxide, and 1kg of dodecyltrimethylammonium chloride into a 3000L enamel kettle, and the addition is completed After sealing, heat up to 193-195°C in 3 hours and keep it warm for condensation reaction for 3 hours. Take a sample to measure the end point. After the end point is reached, cool down to 153-155°C. Add all the distillate at this temperature, 400kg of 30% liquid caustic soda, 350kg of water, finally cooled to 70-80°C, filtered, washed and dried to obtain 480kg of finished product of Solvent Violet 59 with a yield of 97% and a content of 99.1%.

Embodiment 3

[0030] This embodiment provides a solvent violet 59 condensation process, specifically comprising the following steps:

[0031] Add 1500kg of phenol, 500kg of dry product of 1,4-diamino-2,3-dichloroanthraquinone, 600kg of 46% potassium hydroxide, and 3kg of polyethylene glycol into a 3000L enamel kettle. After the addition, seal it for 3 hours Raise the temperature to 196-198°C and keep it warm for condensation reaction for 3 hours. Take a sample to measure the end point. After the end point is reached, cool down to 155-157°C. Add all the distillate at this temperature, 400kg of 30% liquid caustic soda, 350kg of water, and finally cool down to Filtrate at 70-80°C, wash, and dry to obtain 470kg of finished product Solvent Violet 59, with a yield of 95% and a content of 99.5%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a condensation process of solvent violet 59. According to the solvent violet 59 condensation process, an acid-binding agent and a phase transfer catalyst are used for condensation, and the acid-binding agent is potassium hydroxide. According to the solvent violet 59 condensation process, the contact probability and activity of two-phase materials in the condensation reaction can be improved, so that the purposes of stabilizing the product quality and yield and reducing the production cost are achieved, and more importantly, the reaction safety is improved, and the reaction material flushing phenomenon is completely eradicated.

Description

technical field [0001] The invention relates to a condensation process, in particular to a solvent violet 59 condensation process, belonging to the technical field of dye refining. Background technique [0002] Solvent Violet 59 is an important high-grade solvent dye, which is used for ink and plastic coloring, and can also be used for transfer printing. At the same time, it is also a disperse dye, which can be used for dyeing polyester and its blended fabrics after it is commercialized with auxiliary agents. [0003] The original solvent purple 59 condensation process is to condense 1,4-diamino-2,3-dichloroanthraquinone in a phenol medium and in the presence of an acid-binding agent, potassium carbonate, at 190°C-200°C. After the end point, The temperature is lowered to 150-160°C, followed by adding distillate, liquid caustic soda, and process water for isolation, and finally cooling down to 70-80°C, filtering, washing, and drying to obtain 1,4-diamino-2,3-diphenoxy Anthr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09B1/54C07C221/00C07C225/36
CPCC09B1/547C07C221/00C07C2603/24C07C225/36
Inventor 祝新护李成陈胜张标来
Owner 安徽清科瑞洁新材料有限公司