1,About Us
As the biggest group specialized in wollastonite production in China, Xinyu South Wollastointe Co.Ltd, Shanggao County Mengteying Mineral Fiber Co.Ltd, and Jiangxi Golden Great Wall Ore Industry Development Co.Ltd are located in Caofang Temple mining area, Renhe Town, Xinyu City, Jiangxi Province and Moonlight Mountain mining area, Mengshan County, Shanggao Town. The enterprise has mining right licence for three wollastonite mines ,which are made of concrete road and directly through mining area. As an important production base for wollastonite in South ,the reserve of wollastonite reaches a total quantity of over 30 million tons and the quality of it is superior. Also, the condition of exploitation is excellent.
The enterprise has advanced mining and processing equipments, huge technical force and perfect testing methods . Moreover, the enterprise has passed the quality system attestation of ISO9001:2000 and the environmental management system attestation of 14001:2004. The super fine acicular powder of wollastonite product is awarded State Spark Programme Project Certificate and Jiangxi key and New Product Certificate.The corporation occupy a ground space of approximately 600 acres and the building space covers about 150 thousand tons. The annually exploitation and processing of a series of wollastonite products are over 300 thousand tons. The enterprise has developed the new exclusive chemical compound  series of wollastonite products, which is used in metallurgy, pottery, building material, coating material, friction material, rubber, plastics, welding, electronics industry, glass fiber, ceramic fiber, glass fiber reinforced plastic, artificial stone, refractory material,etc. The products have a ready market all over the country and export to Japan, Korea,Southeast, Asia and Europe-America etc.
 

2,Chemical Property of Wollastonite

Name      NFW-A
SiO2         49-51      
CaO        44-46  
Al2O3≤      0.8             
Fe2O3≤      0.25  
TiO2≤      0.003  
MgO≤        1.2      
S≤      0.007 
P≤      0.02
Loss      0.5-2
PH           9

Name      NFW-B    
SiO2         48-52          
CaO          43-45              
Al2O3≤      0.8                 
Fe2O3≤      0.3                   
TiO2≤       0.003           
MgO≤        1.2                   
S≤          0.007                
P≤          0.02        
Loss         2-5              
PH           9                          

Name         NFW-C            
SiO2         48-53                 
CaO          38-43                     
Al2O3≤      0.8          
Fe2O3≤      0.35                 
TiO2≤       0.003              
MgO≤        1.2           
S≤          0.007                  
P≤          0.02           
Loss         5-10               
PH           9   

3,Physical Property of Wollastonite

Granularity (mesh)                    80-1250
Length-diameter ratio (L/D)           8-25     
Sedimentation value (ml/200m)         40-75             
Oil absorption value (g/100g)         20-26                              
Whiteness (%)                         76-90         
Refractive index (%)                  1.63  
Density (g/cm3)                       2.95     
expansion coefficient (mm / mm C)     6.5*10-6                    
Melting Point (C)                     1450          
Hardness (Mohs）                      4.5-5