Liquid amonia pressurized precipitation and hydrothermal modification process for preparing magnesium hydroxide fire retardant
Liquid amonia pressurized precipitation and hydrothermal modification process for preparing magnesium hydroxide fire retardant
Application Number:
Application Date:
Announcement Date:
Pub. Date:
Publication Number:
Announcement Number:
Grant Date:
Granted Pub. Date:
C09K 21/02, C01F 5/20
Tsinghua Univ.
Xiang Lan, Zhang Yingcai, Wu Qingliu, Wei Fei
Key Words:
Liquid amonia,pressurized precipitation,hydrothermal modification,magnesium hydroxide fire retardant
The present invention belongs to the field of inorganic chemical technology, and proposes one kind of liquid ammonia pressurized precipitation and hydrothermal modification process for preparing magnesium hydroxide fire retardant. Through the first precipitation reaction of magnesium chloride material with liquid ammonia as precipitant at 15-90 deg.c and sealed and pressurized conditions to synthesize magnesium hydroxide, and the subsequent modification of the normal temperature synthesized magnesium hydroxide at 100-250 deg.c in the presence of dispersant of 0.01-0.1 % for 1-6 hr, magnesium hydroxide fire retardant is prepared, which has primary granularity of 0.3-2.0 micron, average coagulation particle size of 1.0-4.0 micron, specific surface area of 5-30 sq m/g, and magnesium hydroxide content over 98 %. The magnesium hydroxide fire retardant may be used in rubber, plastic, building material, etc.

Recommend this patent:
1 2 3 4 5
Average ( 0 votes):
                                                                          Recommended Patents>>

Relevancy information

Other Patents of Same Inventor

Process for preparing Fe-series catalyst used to synthesize nano carbon tubes
Method of utilizing external force to crush, wash and purify slender carbon nanotube
Technological process and equipment for catalytically oxidizing HCl to produce CL2
Process for preparing nm-class calcium carbonate
Process and reactor for continuously preparing nm carbon tubes with fluidized bed
Process and system for preparing low-carbon olefin from methanol or dimethylether
Oxychlorination catalyst and application thereof
Technique for producing chlorine by hydrogen chloride catalytic oxidation
Method for catalytic thermal cracking preparation of formulated gasoline and low carbon olefin from petroleum hydrocarbon oil
Novel particle pileup state detecting method and device
Down-flow catalytic cracking/ cracking reactor for processing heavy raw oil
Conducting fiber containing nano car bon tube and its prepn. method
Method for producing propene using silicoaluminophosphate molecular sieve catalytic cracking
Water heat modification method for high dispersion magnesium hydroxide nanometer sheet
Method for preparing supported catalyst with single wall or double wall carbon nano tube
X-ray CT multi-phase current inspection based on hereditary algorithm
Method for large-batch preparing overlength carbon nano pipe array and its apparatus
Process for preparing load type silicon phoshporus aluminium molecular sieve
Carbon nano-pipe composite coating layer type wave absorption material and its preparation method
Oxidation reactor for preparing titanium white through chlorination process, and method
Method for preparing carbon nano-tube array on the basis of chemical vapour deposition
Carbon nano-pipe array/laminated composite and its production
Ultralong orientational carbon nano-tube filament/film and its preparation method
Method for producing Nano carbon tubes continuously and equipment
Aerogel carbon nanotube and its preparation method and application

News & Events More>>

Last Update  
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.

Copyright 2008-2015 All Rights Reserved Patent License of China.      Designed by Easygo