Amidoxime-functionalized materials and their use in extracting metal ions from liquid solutions

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10702852
APP PUB NO 20170361304A1
SERIAL NO

15625276

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method of producing a functionalized material that extracts metal ions from solution, the method comprising: (i) providing a precursor material having nitrile groups appended to its surface; and (ii) reacting said nitrile groups with hydroxylamine or a derivative thereof in the presence of a polar aprotic solvent at a temperature of 60-80° C. for at least 1 hour, to convert at least a portion of said nitrile groups to amidoxime and imide dioxime groups, followed by reaction with a base capable of hydrolyzing any remaining nitrile groups to carboxylic acid groups; wherein said functionalized material has a higher uranium absorption capacity than a functionalized material produced under same conditions except that the nitrile groups are reacted with hydroxylamine in only a protic solvent. The invention is also directed to functionalized materials produced by the above-described method, and methods for using the functionalized material for extracting metal ions from metal-containing solutions.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UT-BATTELLE LLC5002 MS-6265 ONE BETHEL VALLEY ROAD OAK RIDGE TN 37831-6265

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dai, Sheng Knoxville, US 91 1650
Das, Sadananda Kissimmee, US 3 5
Janke, Christopher J Oliver Springs, US 11 87
Mayes, Richard T Knoxville, US 19 537

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jan 7, 2024
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 7, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 7, 2032
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00