Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MULTIFUNCTIONAL PLUGGING AGENT FOR COAL MINE, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/147888
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of coal mine fire prevention and extinguishing materials, and particularly relates to a multifunctional plugging agent for a coal mine, and a preparation method therefor. In the present invention, Ecklonia kurome Okam serves as a raw material; an Ecklonia kurome Okam suspension and phosphorus pentoxide are mixed for reaction, and same is then biodegraded to obtain an Ecklonia kurome Okam biological extraction solution; urea is added for neutralization; the product of neutralization is mixed with an inorganic catalyst and melamine for reaction to obtain a bio-based plugging synergist solution; and finally, the bio-based plugging synergist solution is cooled, and then same is mixed with a certain amount of pentaerythritol and ammonium polyphosphate to obtain the multifunctional plugging agent for a coal mine based on the Ecklonia kurome Okam biological extraction solution. The present invention can not only effectively plug coal body cracks for a long time, but can also have a highly efficient flame-retardant effect in the complete cycle (including low temperature, medium temperature and high temperature) of coal spontaneous combustion.

Inventors:
CHENG WEIMIN (CN)
HU XIANGMING (CN)
YAN BINGRUI (CN)
ZHAO YANYUN (CN)
XUE DI (CN)
WU MINGYUE (CN)
HE ZHENGLONG (CN)
BAI GUANGXING (CN)
MU ZONGLEI (CN)
Application Number:
PCT/CN2021/076121
Publication Date:
July 14, 2022
Filing Date:
February 09, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
C09K8/42; A62D1/00; A62D1/06; B01J20/08; B01J20/30; C09K21/06; C09K21/14; E21B33/13; E21F5/00
Domestic Patent References:
WO2000071591A12000-11-30
Foreign References:
CN107189772A2017-09-22
CN107151552A2017-09-12
CN103113865A2013-05-22
CN110724507A2020-01-24
CN101250398A2008-08-27
CN107502322A2017-12-22
CN110627440A2019-12-31
CN107285723A2017-10-24
Attorney, Agent or Firm:
JINAN GEYUAN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
Download PDF: