JPS574220A - Manufacture of dispersant - Google Patents

Manufacture of dispersant

Info

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
Application number
JP7929280A
Other languages
Japanese (ja)
Inventor
Shunsaku Tanaka
Yoshihiro Ichiura
Mitsuhiro Kodama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sugai Chemical Industry Co Ltd
Original Assignee
Sugai Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sugai Chemical Industry Co Ltd filed Critical Sugai Chemical Industry Co Ltd
Priority to JP7929280A priority Critical patent/JPS574220A/en
Publication of JPS574220A publication Critical patent/JPS574220A/en
Pending legal-status Critical Current

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
JP7929280A 1980-06-11 1980-06-11 Manufacture of dispersant Pending JPS574220A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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