JPS5572138A - Recovery of carboxylic acid and its vapor-liquid contact equipment - Google Patents
Recovery of carboxylic acid and its vapor-liquid contact equipmentInfo
- Publication number
- JPS5572138A JPS5572138A JP14511878A JP14511878A JPS5572138A JP S5572138 A JPS5572138 A JP S5572138A JP 14511878 A JP14511878 A JP 14511878A JP 14511878 A JP14511878 A JP 14511878A JP S5572138 A JPS5572138 A JP S5572138A
- Authority
- JP
- Japan
- Prior art keywords
- carboxylic acid
- ester
- gas
- vaporous
- vapor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover a carboxylic acid completely and utilize it advantageously, by bringing a gas comprising a vaporous or particulate carboxylic acid exhausted in a process, e.g. carboxylic acid esterification, into contact with a liquid carboxylic acid ester.
CONSTITUTION: A gas containing a vaporous or particulate carboxylic acid, e.g. phthalic, trimellitic, pyromellitic, citric, or adipic acid, (including anhydride) is fed from the inlet pipe 11 (heated or kept warm to prevent carboxylic acid from depositing or sticking). A liquid carboxylic acid ester (preferably the ester of the same carboxylic acid to be recoevered) pumped up from the reservoir 13, is circulated via the pipe 15, dispersed preferably through a helmet-formed dispersing plate rotating freely upon springkling, and brought into contact with the gas.
EFFECT: The recovered carboxylic acid is usable directly as a raw material for its ester without causing environmental pollution.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14511878A JPS5572138A (en) | 1978-11-24 | 1978-11-24 | Recovery of carboxylic acid and its vapor-liquid contact equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14511878A JPS5572138A (en) | 1978-11-24 | 1978-11-24 | Recovery of carboxylic acid and its vapor-liquid contact equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5572138A true JPS5572138A (en) | 1980-05-30 |
JPS5711894B2 JPS5711894B2 (en) | 1982-03-08 |
Family
ID=15377801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14511878A Granted JPS5572138A (en) | 1978-11-24 | 1978-11-24 | Recovery of carboxylic acid and its vapor-liquid contact equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572138A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02304078A (en) * | 1989-05-18 | 1990-12-17 | Kawasaki Steel Corp | Method for recovering phthalic anhydride from distillation residue of phthalic anhydride |
-
1978
- 1978-11-24 JP JP14511878A patent/JPS5572138A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02304078A (en) * | 1989-05-18 | 1990-12-17 | Kawasaki Steel Corp | Method for recovering phthalic anhydride from distillation residue of phthalic anhydride |
Also Published As
Publication number | Publication date |
---|---|
JPS5711894B2 (en) | 1982-03-08 |
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