Process for producing binderless formaldehyde-free fiberboard and coproducing fulvic acid from straw

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12037745
APP PUB NO 20220333308A1
SERIAL NO

17640385

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A process for producing binderless formaldehyde-free fiberboard and coproducing fulvic acid from straw. All-element purification, activation, saccharification and separation are carried out on the non-wood fiber raw material through boiling and defibering to obtain primarily activated lignin, purified and activated fibers, monosaccharides of hemicellulose and non-wood fibers, and fulvic acid. Deep activation is carried out on activated lignin. The binderless formaldehyde-free fiberboard is produced by using sufficiently activated lignin and low-molecular-weight monosaccharides as a hardener and binder. By sufficiently activating the lignin, comprehensive utilization of straw fiber as resources is realized, and the special requirements of binderless formaldehyde-free fiberboard for high-quality fibrous raw material and high-activity lignin are met. The boiled dilute black liquor was subjected to extraction and concentrated to obtain fulvic acid, thereby avoiding pollution caused by pulping and board production. The distilled water obtained by carrying out evaporative concentration on the boiled dilute black liquor is reused.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
DAHE (SHANGHAI) ECOLOGICAL TECHNOLOGY CO LTD200000 SHANGHAI PUDONG NEW AREA CHINA (SHANGHAI) PILOT FREE TRADE ZONE LINGANG NEW AREA NO 47 DONGXIANG ROAD 3RD FLOOR AREA A SHANGHAI CITY SHANGHAI CITY 200000

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Bo Shanghai, CN 47 2444
Bai, Jiani Shanghai, CN 2 1
Liu, Yufang Shanghai, CN 5 1
Shi, Xiaofei Zibo, CN 5 10
Wang, Dong Shanghai, CN 600 4166

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 16, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 16, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 16, 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