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

Water-soluble porphyrin sulfonate-hyperbranched polymer two-phase composite catalyst and preparation and application thereof

A technology of hyperbranched polymer and composite catalyst, applied in the chemical industry, can solve problems such as being unfavorable for catalyst reuse and reducing catalytic effect, and achieve the effects of good catalytic activity and stability, strong catalytic stability and good catalytic activity

Inactive Publication Date: 2016-06-08
SHANGHAI JIAO TONG UNIV
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using homogeneous water-soluble sulfonic acid porphyrin for catalytic reaction, inert dimers are easy to form in the solution and easy to photolyze, thus greatly reducing the catalytic effect, and it is also not conducive to the reuse of the catalyst

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
  • Water-soluble porphyrin sulfonate-hyperbranched polymer two-phase composite catalyst and preparation and application thereof
  • Water-soluble porphyrin sulfonate-hyperbranched polymer two-phase composite catalyst and preparation and application thereof
  • Water-soluble porphyrin sulfonate-hyperbranched polymer two-phase composite catalyst and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] water-soluble porphyrin sulfonate P 1 and hyperbranched polymer C 2 (n=323) as raw material, synthetic water-soluble sulfonic acid porphyrin-hyperbranched polymer P1 -C 2 :

[0036] as well as

[0037] This embodiment includes the following steps:

[0038] Step 1) Synthesis of tetraphenylporphyrin: In a 1000mL three-necked flask, add 30.9mL benzaldehyde and 500mL propionic acid, stir electrically and heat to reflux, control the temperature at 130°C, and use a dropping funnel to drop 20.9mL into Freshly distilled pyrrole in 100mL propionic acid (completely added dropwise within 30min), keep stirring at high speed, the solution gradually turns brownish black, continue to reflux for 40min, cool to 80°C, add 200mL ethanol while stirring, cool, and filter with suction. The product was obtained in 8.5 g, yield 18.4%.

[0039] Its characteristic parameters are: MSm / z614.74; IR (KBr): 3317, 1596, 1473, 1441, 969, 700cm -1 ; 1 HNMR200MHz (CDCl 3 ): δ-2.65(s, 2H, α-H)...

Embodiment 2

[0052] This embodiment is compared with embodiment 1, except that C 2 change to C 1 (n=257) or C 3 (n=383), that is, the two-phase interface catalyst by P 1 -C 2 Change to P 1 -C 1 or P 1 -C 3 Except, other is the same as embodiment 1, and the catalytic result of this embodiment is shown in table 2.

[0053] Table 2P 1 -C 2 ,P 1 -C 1 and P 1 -C 3 Catalytic Comparison of 1,5-Naphthalenediol

[0054]

[0055] For the comparison of the catalytic effects of two-phase interface catalysts prepared by hyperbranched polymers with different molecular weights on 1,5-naphthalenediol, it can be seen that when the molecular weight of hyperbranched polymers is moderate, it is C 2 When , its catalytic effect is the best, probably because when the molecular weight of the hyperbranched polymer is small, it is C 1 , its terminal group is less, which makes its solubility poor, which affects the combination with water-soluble sulfonic acid porphyrin, and then affects the full co...

Embodiment 3

[0057] This embodiment is compared with embodiment 1, except P 1 The concentration increased to 50μM, denoted as P 1 ’, others are the same as embodiment 1

[0058] The catalytic results of this embodiment are shown in Table 3. It can be seen that increasing water-soluble porphyrin sulfonate P 1 When the concentration is higher, the conversion rate will not change significantly, which may be because the porphyrin concentration increases, its arrangement is changed, and it is easy to agglomerate.

[0059] Table 3P 1 -C 2 with P 1 ’-C 2 Catalytic Comparison of 1,5-Naphthalenediol

[0060]

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 water-soluble porphyrin sulfonate-hyperbranched polymer two-phase composite catalyst and preparation and application thereof. The catalyst is used for the oxidation catalysis of 1,5-naphthalenediol two-phase interface catalytic system. The catalytic system comprises 0.1000% -0.1018% of a main catalyst, 0.0112%-0.1120% of an oxygen source and 0.003193% -0.003196% of a substrate. The catalytic system is simple for preparation and low in cost, has good catalytic stability; and after four rounds of experiments, the catalytic system still reaches a conversion rate of higher than 75%, and can effectively achieve the separation and recovery of the catalyst.

Description

technical field [0001] The invention relates to a technology in the field of chemical industry, in particular to a water-soluble sulfonic acid porphyrin-hyperbranched polymer two-phase composite catalyst and its preparation and application. Background technique [0002] At present, in the field of chemical industry and environment, the environmental pollution caused by the by-products of chemical reaction has been paid more and more attention by people. Among them, phenolic pollutants are the most harmful and refractory toxic pollutants in industrial wastewater, and their efficient and convenient treatment and degradation need to be solved urgently. The treatment of phenolic pollutants can be roughly divided into physical treatment, biological treatment and chemical treatment. Physical treatment has high requirements on experimental conditions and is not very specific; biological treatment has mild reaction conditions, but its efficiency is low and easy to inactivate; chemi...

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): B01J31/22C02F1/72C02F101/34
CPCC02F1/722C02F1/725B01J31/063B01J31/1825C02F2101/345B01J2231/70B01J35/59Y02W10/37
Inventor 孙凯芳任奇志郭琳童
Owner SHANGHAI JIAO TONG UNIV
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