Supercharge Your Innovation With Domain-Expert AI Agents!

High-performance polyoxometalate catalyst and producing method therefor

一种多金属氧酸盐、催化剂的技术，应用在催化剂活化/制备、羧酸盐制备、金属/金属氧化物/金属氢氧化物催化剂等方向，达到卓越再现性的效果

Inactive Publication Date: 2017-04-19
LG CHEM LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inorganic salt is additionally added, and therefore, a disadvantage is that a process for removing the reducing substance is additionally required

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
  • High-performance polyoxometalate catalyst and producing method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] While stirring 3000ml of 100°C distilled water, add 246g of ammonium tungstate, 1,000g of ammonium molybdate and 12g of niobium oxalate (NbC 2 o 4 ), thereby preparing a solution (1) consisting of Mo, A and B components of formula 1. 276 g of vanadyl sulfate was individually dissolved in 1000 ml of distilled water to prepare a solution (2).

[0118] Solution (1) was mixed with solution (2), then 570 g of Cu(CH 3 COO) 2 ·H 2 O, 99 g of strontium nitrate, 23 g of manganese nitrate and 95 g of ferric nitrate as components C and D of Formula 1, thereby preparing a suspension. The pH of the suspension was adjusted to 4 to 5 using diluted sulfuric acid, and the homogenizer was run until the polyoxometalate formed a slurry in which the viscosity had increased sufficiently.

[0119] Subsequently, the slurry polyoxometalate was coated on a spherical support, aluminosilicate (Saint Gobain, SA5218) with an outer diameter of 4.0 mm to 8.0 mm, through a nozzle, and fully dried ...

Embodiment 2

[0123] A polyoxometalate catalyst was prepared in the same manner as in Example 1 except that ammonium tungstate in an amount of 123 g was used. The composition of the elements of the resulting catalyst component, other than oxygen, was as follows:

[0124] Mo 12 V 5.0 W 5.0 Nb 0.1 Cu 5.0 Sr 1.0 mn 0.2 Fe 0.5

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 present invention relates to a high-performance polyoxometalate catalyst and a producing method therefor. The present invention has an effect of providing: a high-performance polyoxometalate catalyst, which has improved activity and selectivity through the adjustment of the vanadium content or the like, attains a high yield and long lifetime as well as excellent reproducibility, and can produce unsaturated carboxylic acids from unsaturated aldehydes; and a producing method therefor.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims priority from Korean Patent Application No. 10-2015-0113111 filed in the Korean Intellectual Property Office on Aug. 11, 2015, the disclosure of which is hereby incorporated by reference. [0003] The present invention relates to a polyoxometalate catalyst and a preparation method thereof, and more particularly, to a catalyst for producing unsaturated carboxylic acid from unsaturated aldehyde gas by gas-phase partial oxidation in a shell-and-tube heat exchanger and its Preparation. Background technique [0004] The process of preparing unsaturated fatty acids from alkenes via unsaturated aldehydes is a typical example of catalytic gas-phase oxidation. [0005] In the partial oxidation of olefins, molybdenum oxide and transition metal oxides are used to prepare catalysts. As typical processes, there are processes for producing (meth)acrylic acid via methacrolein by oxidizing pr...

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): B01J23/889C07C51/235C07C57/055
CPCB01J23/002B01J23/8898C07C51/235B01J2523/00B01J2523/17B01J2523/24B01J2523/55B01J2523/56B01J2523/68B01J2523/69B01J2523/72B01J2523/842C07C57/04B01J37/0228B01J37/0232B01J37/0219B01J23/6525B01J23/6527B01J23/6562B01J23/686B01J23/687B01J23/688B01J23/8878B01J23/8885B01J23/8993B01J37/0221B01J23/28B01J23/30B01J23/34B01J27/0576B01J27/199B01J35/51B01J21/02B01J21/06B01J21/063B01J21/066B01J21/10B01J23/02B01J23/04B01J23/10B01J23/14B01J23/18B01J23/20B01J23/22B01J23/26B01J23/464B01J23/50B01J23/72B01J23/745B01J23/75B01J23/755B01J27/14
Inventor 崔炳烈申铉鐘崔泳贤金德基林贤燮刘孝相
Owner LG CHEM LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com