Unlock instant, AI-driven research and patent intelligence for your innovation.

Catalyst for use in producing lower aliphatic carboxylic acid ester, process for producing catalyst and process for producing lower alphatic carboxylic acid ester using the catalyst

A technology of aliphatic carboxylic acid and carboxylic acid ester, applied in the production of lower aliphatic carboxylic acid esters, catalysts for the production of lower aliphatic carboxylic acid esters, and the field of production of the catalysts, which can solve the problems of no discovery

Inactive Publication Date: 2005-04-06
RESONAC HOLDINGS CORPORATION
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no method has been found to solve this problem from the standpoint of sufficiently suppressing the generation of the by-product itself in the reaction

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0236] To a pressure vessel made of SUS 316L, 50 ml of the catalyst obtained in the preparation method of catalyst 1 was added, and then contact was performed under the contact conditions shown in Table 3. After the contact, the container is cooled to room temperature and the contacted catalyst (hereinafter referred to as "contact catalyst") is drawn out from the container. Subsequently, 40ml of contact catalyst was added to the reaction tube, and then kept at a temperature of 165°C, 0.8MPaG (gauge pressure) for 1,500 hours -1 A mixed gas of ethylene:acetic acid:steam:nitrogen (=78.5:8.0:4.5:9.0, volume ratio) was introduced into the GHSV to perform the reaction. The gas passing through the catalyst layer is collected under ice cooling for a predetermined time, and then the entire amount of condensed components (hereinafter referred to as "condensed solution") is recovered and analyzed. The gas flow rate of the outlet gas that remains uncondensed (hereinafter referred to as "uncon...

Embodiment 2 and 3

[0239] In the same manner as in Example 1, 50 ml of the catalyst obtained in the preparation method of catalyst 1 was added to a pressure vessel made of SUS 316L, and contacted under the contact conditions shown in Table 3. After that, the catalyst was drawn out, added to the reaction tube, and then reacted in the same manner. The results are given in Table 3.

Embodiment 4

[0241] 40 ml of the catalyst obtained in the preparation method of catalyst 2 was added to the reaction tube, and contact was performed under the contact conditions shown in Table 3. Subsequently, at a temperature of 165°C, 0.8MPaG (gauge pressure) and 1,500 hours -1 A mixed gas of ethylene:acetic acid:steam:nitrogen (=78.5:8.0:4.5:9.0, volume ratio) was introduced into the GHSV to perform the reaction. The results of the reaction are given in Table 3.

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

A catalyst for use in producing a lower aliphatic carboxylic acid ester, wherein the catalyst is produced by a process comprising a step of contacting the catalyst with a gas containing at least one member selected from water, lower aliphatic carboxylic acids and lower aliphatic alcohols; a process for producing the catalyst; and a process for producing a lower aliphatic carboxylic acid ester using the catalyst. The catalyst can exhibit high initial activity and high space time yield, ensure sufficiently long catalyst life in practice in industry, and can prevent the production of by-product materials.

Description

[0001] Cross-references to related applications [0002] This application is based on §111(a) of Title 35 of the United States Code. This application claims the priority of the filing date of the provisional application 60 / 218,803 filed on June 18, 2000 in accordance with the 35th U.S. Code §119(e)(1) in accordance with the 35th U.S. Code §111(b). Technical field [0003] The present invention relates to a catalyst for producing lower aliphatic carboxylic acid esters from lower olefins and lower aliphatic carboxylic acids, a method for producing the catalyst, and a method for producing lower aliphatic carboxylic acid esters using the catalyst. [0004] More specifically, the present invention relates to a catalyst for the production of lower aliphatic carboxylic acid esters. The catalyst contains a special heteropoly acid salt for the production of lower aliphatic carboxylic acid esters by esterifying lower aliphatic carboxylic acids with lower olefins, wherein the catalyst is mixe...

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 Patents(China)
IPC IPC(8): B01J21/08B01J27/188B01J35/00C07C67/04
CPCB01J35/0026B01J27/188C07C67/04B01J35/002B01J21/08B01J35/32B01J2235/00C07C69/14
Inventor 门肋悦子东寅吉小口亘内田博
Owner RESONAC HOLDINGS CORPORATION