dolomite sand price 1.natural or calcined dolomite 2.used in glass,paint,industry ect 3.20-1250mesh 4.powder,granular

dolomite  

natural dolomite

1. Chemical composition of dolomite is CaMg[CO3]2, the crystal is the trigonal system carbonate minerals. The crystal structure and the calcite are similar, and the crystal form is the rhombohedra, the crystal face is often curving becomes saddle, with common polyflake and macle, assumes block or granular aggregation.

 2.The purity is white with glassy luster. Dolomite is used as the ingredient of metallize flux, refractory material, building material, glass and ceramic. Hardness is 3.5 – 4 , specific gravity is 2.8-2.9 .

Physical Data for Reference:

Sp. Gravity  (m2/g)	1.4	pH	9.8
Bulk Density (g/ml)	2.85	Brightiness	92
Oil Absorption (oil/100g)	12g	Ignition Loss	0.32
Moisture (Ex Works)	0.2%	Hardness	3.5-4

Chemical Data for Reference:

Main Elements	Index
CaO	29%-31%
MgO	18%-22%;
Al2O3	0.1-0.3%
Fe2O3	0.1-0.2%
SiO2	0.1-3%

Application:

1. Rigid PVC pipes

2. An additive for Thermoplastic and as a hardning agent for Rubber industry

3. Power Coating, Paints and Ceramic industry

4. Reinforced Polyster glass fibre

5. Leather cloth and Flooring applications

6. Detergent applications

7. Glass Industry (In manufacturing Sheet & Optical Glasses)

calcined dolomite

Our calcined dolomite is made of good quality dolomite as raw material ,sintered in extra high temperature retary kiln,chearacterized by higy chemical purity ,good degree of sintered ,great resistance to slag and hydration .It's indeed ideal raw materials of high calss  magnesia -calcium-carbon bricks,magnesia-dolomite brick,gunning refractory of converter ect.

We are offering Calcined Dolomite as per following specification:

CaO                            :                  +50%MgO                           :                  +30% SiO2                            :                  1-3%S                                :                  +3%

LOI                             :                  6% Max Grain Size                     :                  20-80 mm , 10-20 mm LF                               :                  10%Moisture                       :                  1.5% MaxOther (P,Al)                  :                  <2%B.D                             :                  1 Ton/ M³Reactivity                     :                  60º C 350 ml 4 n Hcl/ 2 minPacking                        :                  1 Mt. jumbo bags

 Size : according to clients requirement

dolomite sand price