Process for the recovery of zinc bacitracin free from zinc hydroxide
Patent 3937694 Issued on February 10, 1976. Estimated Expiration Date: 
February 10, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 10, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2457887 2582921 2809892 2834711 3025216 3795663 Inventors
AssigneeApplicationNo. 460574 filed on 04/12/1974US Classes:530/320, Bacitracin; related peptides530/344Separation or purificationExaminersPrimary: Gotts, LewisAssistant: Suyat, Reginald J. Attorney, Agent or FirmForeign Application Priority Data1973-04-16 HUAbstractA process for the recovery of bacitracin in the form of a zinc complex wherein the pH is raised to precipitate the zinc bacitracin complex. The zinc bacitracin complex is precipitated in the presence of ammonium ion which complexes the excess zinc and maintains it in solution, thereby preventing coprecipitation of zinc hydroxide. |
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