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.)
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American Aniline Products Inc
Original Assignee
American Aniline Products Inc
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Publication date
Application filed by American Aniline Products IncfiledCriticalAmerican Aniline Products Inc
Priority to ES346818ApriorityCriticalpatent/ES346818A1/en
Publication of ES346818A1publicationCriticalpatent/ES346818A1/en
Production Of Liquid Hydrocarbon Mixture For Refining Petroleum
(AREA)
Abstract
Procedure for manufacturing quinizarin-2-sulfonic acid comprising: mixing quinizarin with oil having a concentration of 10 to 15% SO3, in the presence of a water soluble alkali metal sulfate, reacting the mixture at a temperature of 100 to 135ºC, and recovering the quinizarin-2-sulfonic acid from the reaction mixture. (Machine-translation by Google Translate, not legally binding)
ES346818A1967-11-061967-11-06Procedure to manufacture quinizarin-2-sulfonic acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES346818A1
(en)