| 54 |
Title |
TI |
[EN] Use of tartronic acid as an oxygen scavenger |
| 71/73 |
Applicant/owner |
PA |
NALCO CHEMICAL CO, US
|
| 72 |
Inventor |
IN |
BAILEY BRUCE R, US
;
BIZOT PAUL M, US
;
HICKS PETER D, US
|
| 22/96 |
Application date |
AD |
Oct 15, 1996 |
| 21 |
Application number |
AN |
73254596 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
May 12, 1998 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
|
| 51 |
IPC main class |
ICM |
C02F 1/70
|
| 51 |
IPC secondary class |
ICS |
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
C02F 1/20
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
C02F 1/20
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The invention is a method for removing dissolved oxygen from alkaline water which comprises adding to alkaline water containing dissolved oxygen an effective oxygen-scavenging amount of a water-soluble carboxylate at temperatures above 400 DEG F. A preferred material is tartronic acid. At lower temperatures, a catalyst is also required. |
| 56 |
Cited documents identified in the search |
CT |
US000004012195A
US000004022711A
US000004026664A
US000004096090A
US000004269717A
US000004363734A
US000004512552A
US000004968438A
US000005258125A
US000005384050A
US000005531934A
US000005658464A
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
Kirk Othmer Encyclopedia of Chemical Technology, Third Edition, Interscience Publishers, vol. 12, pp. 734 771. 0
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
C02F 1/58
C02F 1/70
|
