JPS5735595A - Deodorization of organophosphoric ester - Google Patents
Deodorization of organophosphoric esterInfo
- Publication number
- JPS5735595A JPS5735595A JP10943180A JP10943180A JPS5735595A JP S5735595 A JPS5735595 A JP S5735595A JP 10943180 A JP10943180 A JP 10943180A JP 10943180 A JP10943180 A JP 10943180A JP S5735595 A JPS5735595 A JP S5735595A
- Authority
- JP
- Japan
- Prior art keywords
- liquid film
- deodorization
- phosphate ester
- effect
- ester
- 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
Abstract
PURPOSE: An unneutralized phosphate ester of an organic hydroxy compound is made into a liquid film of a specific thickness and the liquid film is brought into contact with an inter gas to effect deodorization the titled compound used as a detergent or emulsifier readily and economically.
CONSTITUTION: When a phosphate ester of organic hydroxy compound is deodorized, its unneutralized phosphate ester is continuously made to flow down on a heated vertical surface so that a liquid film of 0.1W5mm thickness is formed. The temperature of the liquid film is kept at 50W250°C and the liquid film is brought into contact with an inert gas such as steam to effect the deodorization of the ester. The pressure is reduced as low as possible, preferably kept lower than 100mmHg to accelerate the deodorization rate and improve the deodorization efficiency.
EFFECT: Phosphate esters are generally unstable; however, the process according to the present invention causes no adverse effect on the composition of the phosphate ester and scarcely chemical change such as hydrolysis and thermal decomposition.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10943180A JPS5735595A (en) | 1980-08-08 | 1980-08-08 | Deodorization of organophosphoric ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10943180A JPS5735595A (en) | 1980-08-08 | 1980-08-08 | Deodorization of organophosphoric ester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5735595A true JPS5735595A (en) | 1982-02-26 |
JPS6225155B2 JPS6225155B2 (en) | 1987-06-01 |
Family
ID=14510065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10943180A Granted JPS5735595A (en) | 1980-08-08 | 1980-08-08 | Deodorization of organophosphoric ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5735595A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5001250A (en) * | 1989-05-30 | 1991-03-19 | Occidental Chemical Corporation | Purification of bidentate organophosphorous extractants |
EP1262485A1 (en) * | 2001-05-31 | 2002-12-04 | Kao Corporation | Process for preparing phosphoric ester |
-
1980
- 1980-08-08 JP JP10943180A patent/JPS5735595A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5001250A (en) * | 1989-05-30 | 1991-03-19 | Occidental Chemical Corporation | Purification of bidentate organophosphorous extractants |
EP1262485A1 (en) * | 2001-05-31 | 2002-12-04 | Kao Corporation | Process for preparing phosphoric ester |
EP1435358A2 (en) * | 2001-05-31 | 2004-07-07 | Kao Corporation | Process for preparing phosphoric ester |
EP1435358A3 (en) * | 2001-05-31 | 2004-08-11 | Kao Corporation | Process for preparing phosphoric ester |
CN1315853C (en) * | 2001-05-31 | 2007-05-16 | 花王株式会社 | Process for preparing phosphoric ester |
Also Published As
Publication number | Publication date |
---|---|
JPS6225155B2 (en) | 1987-06-01 |
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