IP Library › Granted Patent US 10,199,130
Granted Patent B2
US 10,199,130 · App. 15/304,082 · Granted Feb 5, 2019

Methods and devices for isolating lead 203

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Quick Facts
Patent No.
US 10,199,130
App. No.
15/304,082
Granted
Feb 5, 2019
Kind
B2
Abstract

Methods for isolating Pb and/or Pb isotopes from various sources are provided. Compositions comprising Pb and/or Pb isotopes free of certain amounts of various contaminants are also provided.

Claims (10)

1. A method, comprising

contacting a chelating resin that comprises iminodiacetic acid with a solution comprising Pb, and

eluting the Pb bound to the chelating resin with a heated sodium hydroxide solution, wherein the heated sodium hydroxide solution is at a temperature suitable for the selective elution of Pb.

2. The method of claim 1 , wherein the temperature of the heated sodium hydroxide solution is about 85-95° C.

3. A method, comprising

contacting a chelating resin that comprises iminodiacetic acid with a solution comprising Pb, and

eluting the Pb bound to the chelating resin with heated sodium hydroxide solution, wherein the temperature of the sodium hydroxide is at about 90° C.

4. A method, comprising

eluting Pb from a chelating resin using a sodium hydroxide solution at a temperature of about 85-95° C.

or of about 85° C. or higher.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Dec 2, 2022
From: WELLS FARGO BANK, N.A.
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 062047/0925 →
SECURITY INTEREST Recorded Dec 2, 2022
From: LANTHEUS MEDICAL IMAGING, INC.; MOLECULAR INSIGHT PHARMACEUTICALS, INC.; PSMA DEVELOPMENT COMPANY, LLC; PROGENICS PHARMACEUTICALS, INC.
To: CITIZENS BANK, N.A.
Reel/Frame 062047/0960 →
SECURITY AGREEMENT Recorded Jun 28, 2019
From: LANTHEUS MEDICAL IMAGING, INC.
To: WELLS FARGO BANK, N.A.
Reel/Frame 049628/0001 →
RELEASE OF SECURITY INTEREST Recorded Jun 27, 2019
From: JPMORGAN CHASE BANK, N.A.
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 049623/0123 →
SECURITY AGREEMENT Recorded Mar 31, 2017
From: LANTHEUS MEDICAL IMAGING, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 042118/0986 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2017
From: OLEWINE, KEITH R.
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 041290/0792 →