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

Super-fine smashing method for reduction dye

A technology of ultrafine pulverization and dyestuffs, applied in the direction of organic dyes, etc., can solve the problems of high energy consumption, low pulverization efficiency, long ultrafine pulverization time, etc. Effect

Active Publication Date: 2008-07-30
XUZHOU KAIDA FINE CHEM CO LTD +1
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultra-fine crushing takes a long time, high energy consumption and low crushing efficiency

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
  • Super-fine smashing method for reduction dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for superfine pulverization of vat dyes, comprising the following steps:

[0033] a. Put the vat dye, dispersant and water into the one-way rotary ball mill, and perform ball milling to mix into a slurry material and pre-disperse;

[0034] B. Carry out flow energy impact crushing to the mixed material obtained in the previous step with a pin mill;

[0035] c. Add defoamer to the pulverized mixed material, and carry out superfine pulverization in a bidirectional rotating ball mill.

[0036] Vat dyes are filter cakes or dry products of filter cakes after pressure filtration of raw dyes in the dye manufacturing process. The dispersant is sodium methylene naphthalene sulfonate dispersant: dispersant MF, dispersant CNF or dispersant CS. The mass ratio of the vat dye to the dispersant is 1:0.5, and the solid content of the mixed material after adding water reaches 20%. The grinding medium in the ball mill described in step a is ceramic beads, glass beads, zirconia b...

Embodiment 2

[0038] A method for superfine pulverization of vat dyes, comprising the following steps:

[0039] a. Put the vat dye, dispersant and water into the two-way rotating ball mill, carry out ball milling and mix into slurry material and pre-disperse;

[0040] B. Carry out flow energy impact crushing to the mixed material obtained in the previous step with a pin mill;

[0041] c. Add defoamer to the pulverized mixed material, and carry out superfine pulverization in a bidirectional rotating ball mill.

[0042] Vat dyes are filter cakes or dry products of filter cakes after pressure filtration of raw dyes in the dye manufacturing process. Dispersants are lignosulfonate dispersants: synthetic sodium lignosulfonate MS, modified sodium lignosulfonate, dispersant M9, dispersant M10, dispersant M13 or dispersant M15. The mass ratio of the vat dye to the dispersant is 1:4, and the solid content of the mixed material after adding water reaches 55%. The grinding medium in the ball mill de...

Embodiment 3

[0044] A method for superfine pulverization of vat dyes, comprising the following steps:

[0045] a. Put the vat dye, dispersant and water into the one-way rotary ball mill, and perform ball milling to mix into a slurry material and pre-disperse;

[0046] B. Carry out flow energy impact crushing to the mixed material obtained in the previous step with a pin mill;

[0047] c. Add defoamer to the pulverized mixed material, and carry out superfine pulverization in a bidirectional rotating ball mill.

[0048] Vat dyes are filter cakes or dry products of filter cakes after pressure filtration of raw dyes in the dye manufacturing process. The dispersant is sodium methylene naphthalene sulfonate dispersant: dispersant MF, dispersant CNF or dispersant CS. The mass ratio of the vat dye to the dispersant is 1:3, and the solid content of the mixed material after adding water reaches 45%. The grinding medium in the ball mill described in step a is ceramic beads, glass beads, zirconia b...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a super-fine crushing method of vat dye, which is characterized in that the super-fine crushing method comprises the following steps: the vat dye, dispersant and water are added into the ball crusher, to perform the ball milling mixing into pulpy material, and the pulpy material is pre-dispersed; the fluid energy impact and smashing is performed to the mixed material obtained in the first step through a pin mill; the smashed mixed material is added with anti-bubbling agent, and superfine-ground in a bidirectional rotating ball mill. The novel process adopts the process method that according to the particle distribution and the physical property of the pulpy material, the different equipment and process methods are chosen at the different stages to perform the effective grinding to attain the best grinding effect, and a process cycle period has 12-48 hours. The traditional process is that a variety of dye with different structures and performances is ground through the invariable device and process, but the novel process is that aiming at the a variety of dye with different structures and performances, the best grinding process is found through the multivariant devices and processes.

Description

1. Technical field [0001] The invention belongs to the technical field of dye processing, and in particular relates to an ultrafine pulverization method of vat dyes. 2. Background technology [0002] Prior art: the technique of superfine pulverization is mainly divided into (1) abrasive micropowder production technique. The raw material minerals that can be used to process micropowder abrasives mainly include silicon carbide, white corundum, brown corundum and garnet. With the development of refined processing technology in various industries and the adjustment of the international industrial structure, the amount of micropowder abrasives widely used in the polishing industry is increasing, and the export volume is also increasing year by year. The fine processing of micropowder abrasives has broad development prospects. Abrasive processing is characterized by hard materials, high equipment wear, and a narrow particle size distribution. In order to prevent scratches on the...

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): C09B67/04C09B67/28
Inventor 李凤生李振奎顾志明许崇礼刘宏英李洪元姜炜苏顺利邓国栋毕可宇杨毅付萍邵彤李剑郭效德魏家荣
Owner XUZHOU KAIDA FINE CHEM CO LTD
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