ES236407A1 - A method of recovery of tetracycline from solutions that contain it (Machine-translation by Google Translate, not legally binding)
- Google Patents
A method of recovery of tetracycline from solutions that contain it (Machine-translation by Google Translate, not legally binding)
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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Wyeth Holdings LLC
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American Cyanamid Co
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Publication date
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Publication of ES236407A1publicationCriticalpatent/ES236407A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Method of recovering tetracycline from solutions containing it, characterized by contacting a solution in methyl-urea-ostone of crude tetracycline with acidulated water, separating the resulting aqueous phase containing the tetracycline from the solvent phase, adjusting the ph of said aqueous phase to a value comprised between 2.0 and 4.0, and recover tetracycline free base by crystallization of said aqueous phase. (Machine-translation by Google Translate, not legally binding)
ES0236407A1956-07-231957-07-06A method of recovery of tetracycline from solutions that contain it (Machine-translation by Google Translate, not legally binding)
ExpiredES236407A1
(en)
A procedure for the recovery of ammonium sulphate from an aqueous solution of ammonium sulfate. (Machine-translation by Google Translate, not legally binding)
Procedure to recover crystalline and substantially pure novobiocine from a concentrated solution of novobiocinico-active material (Machine-translation by Google Translate, not legally binding)