Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vat olive MW dye with low heavy metal and preparation method of vat olive MW dye

A low-heavy metal and olive technology, applied in the direction of anthracene dyes, organic dyes, chemical instruments and methods, etc., can solve the problems of serious environmental impact, high wastewater concentration, poor effect, etc., achieve low heavy metal content, reduce heavy metal content, various Excellent item fastness performance

Active Publication Date: 2015-03-25
安徽融创化工科技股份有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent (CN200410065716) discloses a method of using organic amine or organic amine salt to reduce heavy metals in dyes, but the waste water produced after organic amine treatment has high concentration, strong toxicity, difficult treatment and serious impact on the environment
The prior art also uses hydrochloric acid to reduce the copper content in the dye, but the effect is not good for other heavy metal elements

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
  • Vat olive MW dye with low heavy metal and preparation method of vat olive MW dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of low heavy metal reduced olive MW dyes

[0031] a. Preparation of reduced olive MW: the chlorination pot uses jacketed hot oil to bake the pot to ensure that there is no water in the pot; add 1400kg aluminum trichloride and 300kg sodium chloride into the chlorination pot, stir evenly, and heat up to 150 ℃, heat preservation for 3 hours, after the heat preservation is over, close the hot oil circulation system, open the cold oil system to cool down the chlorination pot, cool down to 105 ℃, close the cold oil system, slowly add 50L chlorosulfonic acid, the addition time is 2 hours, After the addition, heat and stir for 10 minutes, add 150 kg of olive T raw powder, heat to 150 ° C, and keep warm for 3 hours to obtain reduced olive MW dye;

[0032] b. Add the above-mentioned reduced olive MW dye into an enamel kettle containing acidified bottom water consisting of 150L of 31% hydrochloric acid, 25L of 98% sulfuric acid and 3000L of water, beat for 3 hours, hea...

Embodiment 2

[0035] Preparation of low heavy metal reduced olive MW dyes

[0036] a. Preparation of reduced olive MW: the chlorination pot uses jacketed hot oil to bake the pot to ensure that there is no moisture in the pot; add 1650kg aluminum trichloride and 375kg sodium chloride into the chlorination pot, stir evenly, and heat up to 160°C , heat preservation for 4 hours, after the heat preservation is over, close the hot oil circulation system, open the cold oil system to cool down the chlorination pot, cool down to 110°C, close the cold oil system, slowly add 60L chlorosulfonic acid, the addition time is 2.5 hours, add After that, heat and stir for 10 minutes, add 150kg of olive T raw powder, heat to 160°C, and keep warm for 3 hours to obtain reduced olive MW dye;

[0037] b. Add the above-mentioned reduced olive MW dye into an enamel kettle containing acidified bottom water consisting of 165L of 38% hydrochloric acid, 55L of 98% sulfuric acid and 3000L of water, beat for 3 hours, heat...

Embodiment 3

[0040] Preparation of low heavy metal reduced olive MW dyes

[0041] a. Preparation of reduced olive MW: use jacketed hot oil to bake the chlorination pot to ensure that there is no water in the pot; add 1800kg aluminum trichloride and 600kg sodium chloride into the chlorination pot, stir evenly, and heat up to 165°C , heat preservation for 4 hours, after the heat preservation is over, close the hot oil circulation system, open the cold oil system to cool down the chlorination pot, cool down to 110°C, close the cold oil system, slowly add 75L chlorosulfonic acid, the addition time is 2.5 hours, add After that, heat and stir for 10 minutes, add 150 kg of olive T raw powder, heat to 170 ° C, and keep warm for 3 hours to obtain reduced olive MW dye;

[0042] b. Add the above-mentioned reduced olive MW dye into an enamel kettle containing acidified bottom water consisting of 200L of 38% hydrochloric acid, 80L of 98% sulfuric acid and 3000L of water, beat for 3 hours, heat to 80°C,...

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 relates to vat dye and a preparation method thereof, in particular to vat olive MW dye with low heavy metal and a preparation method of the vat olive MW dye. The preparation method comprises the specific steps as follows: aluminum trichloride and sodium chloride are heated and subjected to heat preservation for 3 hours, then a sulfonating agent chlorosulfonic acid and olive T raw powder are added, the vat olive MW dye is prepared by controlling the reaction temperature and time, then the vat olive MW dye is added to an acidized bottom water compounded by sulfuric acid and hydrochloric acid, beat, heated, subjected to acid pickling, filtered and washed by water to obtain the vat olive MW dye with low heavy metal, the heavy metal content in the dye is low, the Fe content is smaller than or equal to 800 PPM (parts per million), the Cu content is smaller than or equal to 200 PPM, the color is fresh bright, the fastness is excellent, and meanwhile, a product does not require sanding, so that the production cost can be saved by about 30%.

Description

technical field [0001] The invention relates to a vat dye and a preparation method thereof, in particular to a low heavy metal vat olive MW dye and a preparation method thereof. Background technique [0002] Vat dyes have won the reputation of high-grade dyes in the dye market due to their excellent fastness since their inception. Heavy metals have stricter requirements. Heavy metals are indispensable catalysts in the synthesis of dyes. [0003] Chinese patent (CN200410065716) discloses a method of using organic amine or organic amine salt to reduce heavy metals in dyes, but the waste water produced after organic amine treatment has high concentration, strong toxicity, difficult treatment and serious impact on the environment. The prior art also uses hydrochloric acid to reduce the copper content in the dye, but the effect on other heavy metal elements is not good. Contents of the invention [0004] Aiming at the problems existing in the prior art, the invention provide...

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
IPC IPC(8): C09B5/40C09B67/14
Inventor 高鸿宇王洪卫王方玉李振毛思侠张文件蒋大为
Owner 安徽融创化工科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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