METHOD FOR PRODUCTION HIGHLY PURE 2-ACRYLAMIDE-2 METHYLPROPANESULFONIC ACID

METHOD FOR PRODUCTION HIGHLY PURE 2-ACRYLAMIDE-2 METHYLPROPANESULFONIC ACID

PURPOSE:To efficiently obtain the subject colorless compound capable of providing high mol.wt. polymers not or extremely slightly forming a water-soluble gel by reacting acrylonitrile, isobutylene and (fuming) sulfuric acid having an iron content of zero or a specific small amount with each other. C...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YOKOMAKU MASAHARU, YOSHIDA TERUO, HIRAIWA AKIHIKO
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:PURPOSE:To efficiently obtain the subject colorless compound capable of providing high mol.wt. polymers not or extremely slightly forming a water-soluble gel by reacting acrylonitrile, isobutylene and (fuming) sulfuric acid having an iron content of zero or a specific small amount with each other. CONSTITUTION:(A) Sulfuric acid or fuming sulfuric acid having an iron content of 0-20ppm and preferably a concentration of >=95% (preferably 98-102%), (B) acrylonitrile preferably having a water content of