JPS574220A - Manufacture of dispersant - Google Patents
Manufacture of dispersantInfo
- Publication number
- JPS574220A JPS574220A JP7929280A JP7929280A JPS574220A JP S574220 A JPS574220 A JP S574220A JP 7929280 A JP7929280 A JP 7929280A JP 7929280 A JP7929280 A JP 7929280A JP S574220 A JPS574220 A JP S574220A
- Authority
- JP
- Japan
- Prior art keywords
- boiling point
- low boiling
- sulfonation
- raw material
- aqueous dispersant
- 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.)
- Pending
Links
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To prevent mixing of by-products and to obtain a highly efficient product in manufacturing an aqueous dispersant by sulfonation by making sulfonation in two steps and making a specified low boiling point compound exist in the second step.
CONSTITUTION: In manufacturing an aqueous dispersant by formaldehyde condensation after sulfonating the raw material such as creosote oil etc., sulfonation is performed in two steps. In the first step, 1W1.6mol sulfonating agent is used basing on 1mol raw material. In the second step, about 3W20g per mol, expressed in terms of average molecular weight of raw material, of a low boiling point compound consisting a neutral oil low boiling point fraction of 80W220°C of coal tar is added to this first step reaction system. The temperature of the reaction system is then maintained at 80W150°C and generated water is distilled out of the system and the low boiling point compound is circulated. By this way, a highly efficient aqueous dispersant is manufactured.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7929280A JPS574220A (en) | 1980-06-11 | 1980-06-11 | Manufacture of dispersant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7929280A JPS574220A (en) | 1980-06-11 | 1980-06-11 | Manufacture of dispersant |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS574220A true JPS574220A (en) | 1982-01-09 |
Family
ID=13685769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7929280A Pending JPS574220A (en) | 1980-06-11 | 1980-06-11 | Manufacture of dispersant |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS574220A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5949835A (en) * | 1982-09-14 | 1984-03-22 | Nissan Chem Ind Ltd | Production of aqueous dispersion of magnesium hydroxide |
WO2005021145A1 (en) * | 2003-09-01 | 2005-03-10 | Acquos Pty Ltd | Redispersing agents for redispersible polymer powders and redispersible polymer powders including same |
AU2004267871B2 (en) * | 2003-09-01 | 2010-03-04 | Acquos Pty Ltd | Redispersing agents for redispersible polymer powders and redispersible polymer powders including same |
-
1980
- 1980-06-11 JP JP7929280A patent/JPS574220A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5949835A (en) * | 1982-09-14 | 1984-03-22 | Nissan Chem Ind Ltd | Production of aqueous dispersion of magnesium hydroxide |
WO2005021145A1 (en) * | 2003-09-01 | 2005-03-10 | Acquos Pty Ltd | Redispersing agents for redispersible polymer powders and redispersible polymer powders including same |
AU2004267871B2 (en) * | 2003-09-01 | 2010-03-04 | Acquos Pty Ltd | Redispersing agents for redispersible polymer powders and redispersible polymer powders including same |
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