Preparation method of para-(beta-Ethyl Sulfonyl Sulfate) aniline sulfonic acid

A kind of technology of sulfate ethyl sulfone and aniline ortho, applied in the field of preparation of intermediates
CN101037404AInactive Publication Date: 2007-09-19HUBEI HUALI DYESTUFF INDAL
0 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUBEI HUALI DYESTUFF INDAL
Publication Date
2007-09-19
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention is a producing method of a p-(beta-sulfooxyethylsulfone)phenylamine-o-sulfonic acid, which is characterized in that: having the oil of vitriol (100%) as solvent, p-(beta-sulfooxyethylsulfone)phenylamine as material, dispersing at about 60-90 DEG C, sulfonating at 120-130 DEG C, hydrolyze at 100-110 DEG C, then cooling, acidifying, crystallizing, filtering, drying to get product. The active dye produced by p-(beta-sulfooxyethylsulfone)phenylamine-o-sulfonic acid has a better pile-on property, fixing rate, solubility, alkaline saline resistance, humidity resistance, friction fastness compared the dye produced by p-(beta-sulfooxyethylsulfone)phenylamine.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation method of intermediates of three primary colors of dyes, in particular to a preparation method of p-(β-sulfate ethyl sulfone) aniline o-sulfonic acid. Background technique

[0002] As we all know, p-(β-sulfate ethyl sulfone) aniline is one of the important intermediates for the preparation of the three primary colors of reactive dyes, but the performance of the dyes synthesized by it needs to be further improved. Contents of the invention

[0003] The purpose of this invention is to provide a kind of preparation method of p-(β-sulfate ethyl sulfone) aniline o-sulfonic acid, the p-(β-sulfate ethyl sulfone) aniline o-sulfonic acid prepared by the inventive method, by Compared with the reactive dyes prepared with p-(β-sulfate ethyl sulfone) aniline, the reactive dyes produced by it have better dyeing depth, color fixation rate, solubility, salt and alkali resistance stability, and wet rubbing fastness. There is im...

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