Catalyst for inducing thermal desorption of organic matter-contaminated soil and preparation method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12097487
APP PUB NO 20230044974A1
SERIAL NO

17879060

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A catalyst for inducing thermal desorption of organic matter-contaminated soil and a preparation method thereof, which uses a colloidal mixture of ferroferric oxide and ferric chloride as a catalytic active component of thermal desorption, and carbon tetrachloride as a solvent. Based on the mass of solvent, a mass percentage of catalytic active component is 0.1%-15%. Ammonia water is added dropwise to ferric chloride aqueous solution to react in oil bath to generate a ferroferric oxide colloidal solution, then ferric chloride and obtained ferroferric oxide colloidal solution are added to carbon tetrachloride, and mixed solution is continuously stirred in an oil bath to evaporate solvent water to prepare a catalyst with carbon tetrachloride as solvent. Catalyst is environmentally friendly and can induce thermal desorption of organic matters in soil. 100% desorption of chlorobenzene, o-xylene and benzo[A]anthracene can be achieved at 130° C., and energy consumption of thermal desorption is greatly reduced.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
NANJING TECH UNIVERSITYNO 30 PUZHU SOUTH ROAD NANJING JIANGSU 210009 NANJING CITY JIANGSU PROVINCE 210009
NANJING GEKOF INSTITUTE OF ENVIRONMENTAL PROTECTION TECHNOLOGY & EQUIPMENT CO LTDFLOOR 4 BUILDING 1-1 19 CHANGQING STREET MOLING STREET JIANGNING NANJING JIANGSU 211100

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ji, Wenyu Nanjing, CN 2 0
Jin, Qijie Nanjing, CN 4 0
Li, Mingbo Nanjing, CN 7 0
Lu, Yao Nanjing, CN 92 793
Song, Jing Nanjing, CN 68 855
Xu, Haitao Nanjing, CN 36 72
Xu, Meng Nanjing, CN 162 1650
Xu, Mutao Nanjing, CN 3 0

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 Mar 24, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 24, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 24, 2036
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