Buy Discount Zinc Oxide White Powder 99.7%
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Buy Discount Zinc Oxide White Powder 99.7%

Desulfurizers generally refer to agents that remove free sulfur or sulfur compounds in fuels, raw materials or other materials; MST® Buy Discount Zinc Oxide White Powder 99.7% has a wide range of applications in desulfurizers.As the professional manufacture, we would like to provide you MST® Buy Discount Zinc Oxide White Powder 99.7%. And we will offer you the best after-sale service and timely delivery.

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Product Description

MST® Zinc oxide white powder 99.7% 

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Desulfurizers generally refer to agents that remove free sulfur or sulfur compounds in fuels, raw materials or other materials; MST® Buy Discount Zinc Oxide White Powder 99.7% has a wide range of applications in desulfurizers.


Product name

Zinc oxide  

Molecular formula

ZnO

CAS NO

1314-13-2

EINECS NO

215-222-5

Density

5.606g/cm3

Molecular weight

81.38

Melting point

1975℃

Boiling Point:

2360ºC

Purity

0.99

Active substance content

0.997

H.S CODE

2817001000

Appearance

White powder or crystal 


Method for preparing zinc oxide desulfurizer using MST® zinc oxide white powder 99.7%

At present, the methods for preparing zinc oxide desulfurizers with MST® zinc oxide white powder 99.7% include: dry mixing method, precipitation method, and sol-gel method. The dry blending method is a traditional method, and the precipitation method is more commonly used now, while the sol-gel method is a new method recently.

1) The dry blending method is to combine MST® zinc oxide white powder 99.7% and other additives, pore formers, and binders by adding appropriate amounts of water, organic solvents, stirring, grinding, mechanical crushing, ultrasonic waves, vibration and other smashing methods. Mix them uniformly, and then extrude them into different shapes such as flakes, strips, or spheres through extruders or tablet presses, then dry them in an oven and roast them in a muffle furnace to obtain samples. This manufacturing method is simple, large in production capacity, and low in operating costs. The biggest disadvantage is that the desulfurizer of this process is not easy to make the components of the desulfurizer highly dispersed and uniform. The same chemical components are not as active and thermally stable as those prepared by the precipitation method. Good desulfurizer.

2) The method of preparing zinc oxide desulfurizer with MST® zinc oxide white powder 99.7%. In the future, the mixing method will gradually be replaced by uniform precipitation method and sol-gel method. The uniform precipitation method is different from the direct precipitation method in that the added precipitant does not directly react and precipitate with the precipitated material, but first releases the precipitant slowly and uniformly in the unsaturated zone. The sol-gel method uses colloids to be highly dispersed into nano-sized particles to produce desulfurizers.

Standard:GB/T3185-2016

Item

Type1

Type2

Type3

Zinc oxide(Zn0 calculating as dry materia)% ≥

99.7

99.7

99.5

Metal content(as Zn)% ≤

none

none

0.008

Insoluble Matter in Hci %  ≤

0.006

0.008

0.03

Loss on ignition % ≤

0.2

0.2

0.25

Residue on sieve (45um)% ≤

0.1

0.15

0.2

Water soluble matter % ≤

0.1

0.1

0.15

 Volatile matter in 105℃ % ≤

0.3

0.4

0.5

Lead(pb)% ≤

0.008

0.05

0.1

Copper(Cu)%  ≤

0.0002

0.0004

0.0007

Manganese( Mn)%

0.0001

0.0001

0.0003

Cadmium (Cd)%

0.002

0.005

0.01

Iron (Fe)%

0.005

0.01


Zinc oxide desulfurizer prepared from MST® zinc oxide white powder 99.7% is mainly used in the production of methanol, synthetic natural gas, coke oven gas, synthetic ammonia, petrochemical dry gas, fine chemical gas phase removal of H2S and diesel/gasoline removal of H2S.


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