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Metal ore desulfurization and market application


 
 
 
 
In many country, mineral that has a high level of sulfide, such as iron sulfide, copper sulfide and nickel sulfide, is forbade to be use for steelmaking, most of them can only be abandoned and piled up.

For example, the iron sulfide will be oxidized to elemental iron, sulfur dioxide, sulfur trioxide or any other sulfide gas, these harmful gases will damage the respiratory system, if inhale to much of them will causing other respiratory disease, also the secondary pollution Requires more cost for further treatment.

Composition analysis of FeS
 



Mineral Desulfurization



Electro-catalytic water technology
 

The Electro-catalytic water is produce by the SEEF technology. Certain modification of the equipment can allow us to control the equipment to produce different kind of Electro-catalytic water, such as alkaline, acidic and neutral electro-catalytic water. In the mean time, the equipment will enrich the water with a vast amount of free radicals and adjust the PH value and EH value to fit our need.


The application of electro-catalytic water:
 

A:Neutral electro-catalytic water: mainly use in the treatment of TVOC contaminated soil, oil contaminated soil and chemical pesticides contaminated soil.

B:Acidic/Alkaline electro-catalytic water:。Mainly use in the treatment of heavy metal contaminated soil, it can change the Redox potential of the soil and converting the heavy metal to non-toxic and harmless salts or other steady state substances. According to different situation, the equipment can be adjusted to fulfill our need.

C:Acidic/Alkaline electro-catalytic water: Can efficiently decompose the pollutants of all kinds of oil contaminated soil.



The SEEF technology:
 

When the SEEF Tunnel-type purification module decomposing the waste gas, The high-energy electrons in the system plays a decisive role, An inelastic collision occurs between the High energy electrons and gas molecules, which convert the energy to The internal energy of the ground state molecule (atom), then the gas will be activated by a series of processes such as excitation, dissociation and ionization.

When the electron energy is low (<10eV), activated free radicals are produced. Activated pollutant molecules will be removes by the Non-plasma directional chain chemical reaction. When the average energy of the electron exceeds the molecular bonding energy of the pollutants, the molecular chain will break and the pollutant will be break down.

 

 

 

Introduction of degradation tower
 

Degradation tower is a new technology to process waste gas ,it is a combination of the ability of traditional scrubber to absorb all kinds of organic waste gas and our dynamic electric-catalytic water's ability to process the dissolved waste gas in water, which will oxidized and reduced The dissolved waste gas in water and produces a large number of active free radicals to improve the dissolution rate of the waste gas and Catalytic decomposition without the need to use other auxiliaries to improve the dissolution rate of exhaust gases.

 

 
Introduction of degradation tower 明                              Degradation tower equipment       
 


Mineral Desulfurization
 

 

Process description:


A:Electro-catalytic water to Redox:

Use the electro-catalytic water equipment to adjust the PH value and REDOX potential of water, to produce Acidic electro-catalysis water with PH value about 1 ~ 2. these Acidic electro-catalysis water will conduct REDOX reaction with the high sulfur mineral and turn it into Oxide minerals and hydrogen sulfide, the oxide minerals can be use in steelmaking process as a raw material.


B:SEEF MODULE (or degradation tower) :

In order to remove the hydrogen sulfate created in the last process ,we use the method of creating An inelastic collision between the High energy electrons and gas molecules, which convert the energy to The internal energy of the ground state molecule (atom), then the gas will be activated by a series of processes such as excitation, dissociation and ionization. and eventually produces elemental sulfur and hydrogen.


C:degradation tower(or SEEF module ) :

There are other method to remove the hydrogen sulfate created in the last process, we can combine the traditional scrubbe’s ability to absorb all kinds of organic waste gas with the ability of dynamic electro-catalytic water to process the dissolved waste gas in water, to oxidized and reduced The dissolved waste gas in water and produces a large number of active free radicals to improve the dissolution rate of the waste gas Eventually, make the hydrogen recoverable and the sulfur will be dissolved in water.



D:The process and technology mention above can also be use in the further desulfurization of other sulfide like copper sulfide and nickel sulfide, in order to further lower the sulfur level



Market outlook and application of the technology

 

Sulfur ore resource in china

 

 


Pyrite

China's pyrite reserves are distributed in 28 provinces and there are 356 pyrite mines in China with pyrite reserves around 53.82 billion tons. It has 923 million tons of reserves, 19.03 billion tons of basic reserves and 34.79 billion tons of resources. Most of the mines are mainly locate in the Southwest, central south and east of china, more than 80%of china’s pyrite reserves are locate in this three regions. In addition there only 3.3% of the pyrite in china is High quality pyrite(Sulfur content is less than 35%) and most of them is locate in the Guangdong province(66%) and Anhui province(30%).


Associated pyrite

China's associated pyrite reserves are distributed in 28 provinces and there are 283 associated pyrite mines in China with associated pyrite reserves around 346 million tons. It has 61.2474 million of reserves, 128 million tons of basic reserves and 21.8 million tons of resources. Most of the mines are mainly locate in Jiangxi, Shaanxi, Gansu, Jilin, Anhui, Yunnan and other provinces, the Jiangxi province.


Sulfur mines

Most of the Sulfur mines are mainly locate in Shandong, Tibet, Qinghai and Xinjiang provinces, the Jiangxi provinces and there are 12 Sulfur mines in China with sulfur reserves around 321 million tons. It has 246000 tons of basic reserves and 320.89 million tons of resources.

 

Superiority of the technology
 

 

The Sulfidion removal rate is up to 99.62% and the Sulfidion content level is reduce to 0.19%from 50.87%.The Zinc ion removal rate is up to 84.61% and the zinc ion content level is reduce to 0.029%from 0.14%.The technology can be also applied to the desulfurization process of copper sulfide and nickel sulfide

Test report