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

Molding and method for producing the same, and catalyst and method for producing the same

A manufacturing method and technology of shaped bodies, which are applied in catalyst activation/preparation, catalyst carriers, chemical instruments and methods, etc., can solve the problems of broken, easily broken when cut off, and increased pressure loss, etc., and achieve improved strength and suppression of pressure loss. , Unbreakable effect

Inactive Publication Date: 2010-12-29
SUMITOMO CHEM CO LTD
View PDF9 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This molded body has the advantage that when it is filled in a device such as a fixed bed reactor or various containers, even if it is filled randomly in any direction, the pressure loss can be suppressed to a small degree. In terms of its structure, there is a problem that it is easy to break during extrusion molding, especially when cutting immediately after molding
[0007] In addition, when filled into various containers such as fixed bed reactors or reaction tubes, the molded body may be broken and the pressure loss may increase.

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
  • Molding and method for producing the same, and catalyst and method for producing the same
  • Molding and method for producing the same, and catalyst and method for producing the same
  • Molding and method for producing the same, and catalyst and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0538] Ammonium molybdate [(NH 4 ) 6 Mo 7 o 24 4H 2 O]13241g was dissolved in 15000g of warm water, and this was made A liquid. In addition, iron(III) nitrate [Fe(NO 3 ) 3 9H 2 O] 6060g, cobalt nitrate [Co(NO 3 ) 2 ·6H 2 O]13096g and cesium nitrate (CsNO 3 )585g was dissolved in warm water 6000g, and then dissolved bismuth nitrate [Bi(NO 3 ) 3 ·5H 2 O] 2910g, and this was made B liquid.

[0539] Stirring liquid A, liquid B was added thereto to obtain a slurry, which was then spray-dried to obtain a dry product. In the dried product obtained, antimony trioxide [Sb 2 o 3 ] 2.5 parts by mass, 9 parts by mass of silica-alumina fiber (manufactured by Sungoban Teim, RFC400-SL), 32 parts by mass of pure water, and 4 parts by mass of methylcellulose to obtain a molding material, and the molding material was Knead in a kneader to obtain a pasty molding material.

[0540] use Figure 4 Extrusion molding machine shown in (b), and use such as Figure 7 The die shown (t...

Embodiment 2

[0542] use Figure 4 Extrusion molding machine shown in (b), and use such as Figure 9 The die head shown (the diameter of the first die head 21': 6.4mm, the depth R1.3mm of its groove 21'a, the number of its groove 21'a: 5, the outer diameter of the second die head 22': 30mm, the inner diameter of the second die head 22': 6.4mm, the depth of its groove 22'a: R1.3mm, the number of its groove 22'a: 5), insert and fill in the flow path 25 of this die head by The pasty molding material that embodiment 1 obtains utilizes motor 23 such as Figure 10 As shown, the first die head 21' was rotated 144 degrees at a rotation speed of 60 rpm, stopped for 1250 msec, and then rotated 144 degrees at a rotation speed of 60 rpm, and extruded at a speed of 177 mm / min while repeating the above operation. Utilize piano wire to cut off the molded body just after molding, make the length be 8~9mm, obtain Figure 8 The molded body 15 shown.

Embodiment 3

[0547] (a) Production of inlet side catalyst

[0548] Ammonium molybdate [(NH 4 ) 6 Mo 7 o 24 4H 2 O]13241g was dissolved in 15000g of warm water, and this was made A liquid. In addition, dissolve iron (III) nitrate [Fe(NO 3 ) 3 9H 2O] 6060g, cobalt nitrate [Co(NO 3 ) 2 ·6H 2 O]13096g and cesium nitrate (CsNO 3 )585g, then dissolve bismuth nitrate [Bi(NO 3 ) 3 ·5H 2 O] 2910g, and this was made B liquid.

[0549] Stirring liquid A, liquid B was added thereto to obtain a slurry, followed by spray drying to obtain a dry product. In the obtained dried product, antimony trioxide [Sb 2 o 3 ] 2.5 parts by mass, 9 parts by mass of silica-alumina fiber (manufactured by Sungoban Teim, RFC400-SL), 32 parts by mass of pure water, and 4 parts by mass of methylcellulose to obtain a molding material, and the molding material was Knead in a kneader to obtain a pasty molding material.

[0550] use as Figure 4 (b) and Figure 7 The extruder shown in the die head (the diame...

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
specific surface areaaaaaaaaaaa
lengthaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The present invention provides a molding and a method for producing the same; a catalyst for the production of an unsaturated aldehyde and an unsaturated carboxylic acid, and a method for producing the same; and a catalyst for the production of methacrylic acid, and a method for producing the same. The molding (10) of the present invention shows a shape including a plurality of columnar portions (12) disposed with a predetermined gap; and bridge portions (11) which are provided at both ends in longitudinal directions of two adjacent columnar portions (12, 12) and join adjacent columnar portions each other; and including through holes (13) surrounded by a plurality of columnar portions in the longitudinal directions of the columnar portions, and openings (14) formed on a peripheral surface by a gap between the plurality of adjacent columnar portions. This molding (10) can be formed by using an extrusion molding machine including a first die which has a plurality of grooves on an outer peripheral surface, and a ring-shaped or cylindrical second die fitted in the first die which has a plurality of grooves on a peripheral surface, and repeatedly rotating and stopping at least one of the first and second dies.

Description

technical field [0001] The present invention relates to a molded body useful as, for example, a catalyst, a catalyst carrier, an adsorbent, a desiccant, a humidity control material, etc., a method for producing the same, a catalyst for producing unsaturated aldehydes and unsaturated carboxylic acids, and a method using the catalyst A method for producing unsaturated aldehydes and unsaturated carboxylic acids, a catalyst for producing methacrylic acid, and a method for producing methacrylic acid using the catalyst. Background technique [0002] Conventionally, it has been known that catalysts containing molybdenum, bismuth, iron, nickel and Cobalt composite oxides are effective (Patent Document 1). [0003] As such a catalyst or catalyst carrier, a molded body shaped into a columnar shape, a cylindrical shape, or the like can be used. Such molded bodies have been commonly used for catalytic reactions in fixed-bed reactors. Generally, they can be used in a method of filling ...

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): B01J35/02B01J32/00B01J23/887B01J23/755B01J23/78B01J23/89B01J31/18B01J21/06B01J21/10B01J21/14B29C47/00B29C47/24C07C45/35C07C45/38C07C51/25C07C51/235C07C57/05C01B3/40C07C43/04C07C41/09B29C48/03B29C48/06B29C48/12B29C48/33B29C48/92
CPCC04B2235/3206C04B35/478C04B38/00B01J23/8885B01J23/002C04B2235/3232B01J23/8876C04B2111/0081C04B2235/3217B01J37/0045B01J35/04B29C47/0009B28B3/20B28B13/04B29C47/24B01J37/0009B01J2523/00B29C48/03B29C48/33Y10T428/31Y10T428/24182B29C48/12B29C48/06B01J2523/15B01J2523/53B01J2523/54B01J2523/68B01J2523/842B01J2523/845C04B38/0054C04B38/0074C04B38/067C04B38/0665C04B38/0675C04B38/068C04B38/08B29C48/30
Inventor 斎藤浩史高桥裕也星川丰久土本和也山西修
Owner SUMITOMO 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