Industrial production method of disperse violet 26
A production method and technology of dispersing violet, applied in chemical instruments and methods, amino-hydroxyanthraquinone dyes, anthracene dyes, etc., can solve the problem of increasing the cost and difficulty of wastewater treatment, high chroma and COD of wastewater, and low yield of production process and other issues, to achieve the effect of reducing phenol consumption, reducing wastewater chroma and COD, and cleaning production process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0017] A kind of industrialized production method of disperse violet 26, comprises the steps:
[0018] (1) Condensation:
[0019] A) Turn on the phenol delivery pump, put 3420L of phenol into the 6300L condensation kettle through the phenol metering tank, start the stirring, open the manhole cover, and put 1000kg of 2,3-dichloro-1,4-diaminoanthraquinone and carbonic acid into the kettle Potassium 775kg, after casting, cover the manhole cover and stir for more than 10 minutes;
[0020] B) Open the valve of the oil bath and raise the temperature slowly, gradually raise the temperature of the material in the kettle to 195°C, and keep it warm at 195-198°C for 3 hours to take a sample and test it. The liquid chromatography analysis shows that the content of 38# purple is ≤1.5% and it is qualified; collect the condensation reaction 150L of distillate is obtained from the liquid distilled in the distillate, and the phenol content in the distillate is 60%; 38# purple is the product o...
Embodiment 2
[0049] In a 1000ml four-neck flask, add 800ml of the isolated waste water obtained in step (4) of Example 1, add a small amount of hydrochloric acid under stirring, adjust the pH of the waste water to 6~7, then add 60g of benzene, stir and extract for 1 hour, stop stirring, and then The material was transferred to a 1000ml separatory funnel and allowed to stand for 2 hours to separate the layers.
[0050]With the above layered liquid, first separate the lower waste water layer in a 1000ml beaker, then divide the upper solvent phenol layer into a 250ml retort, and heat up the solvent layer in the retort to distill out the solvent, and the remaining material in the lower part is phenol; The chromaticity of wastewater is reduced from 2000 times to 15 times, and the COD is reduced from 6000 to 450.
Embodiment 3
[0052] In a 1000ml four-neck flask, add 800ml of the isolated waste water obtained in step (4) of Example 1, add a small amount of hydrochloric acid under stirring, adjust the pH of the waste water to 6~7, then add 50g of kerosene, stir and extract for 1 hour, stop stirring, and then The material was transferred to a 1000ml separatory funnel and allowed to stand for 2 hours to separate the layers.
[0053] With the above layered liquid, first separate the lower waste water layer in a 1000ml beaker, then divide the upper solvent phenol layer into a 250ml retort, and heat up the solvent layer in the retort to distill out the solvent, and the remaining material in the lower part is phenol; The chromaticity of wastewater is reduced from 2000 times to 8 times, and the COD is reduced from 5500 to 600.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com