Semi Coke Introduction

-What is it ?

Semi-coke is light black; characterized by high fixed carbon, high specific resistance, high chemical activity, low ash content, low sulfur and Low phosphorus; wildly applied to such industries as chemical industry, metallurgic industry, gas-making industry, etc.; used to produce calcium carbide, ferroalloy, ferrosilicon, silicon carbide, silicomanganese, fertilizer, etc

Semi coke is made from high grade Jurassic coal and as a new type of carbon material. It can be instead of some metallurgical coke when produce ferroalloys products. Semi coke is using in smelting too much in China current.

-Standard specification of semi coke

– Advantage of semi coke than Met Coke in production of Ferro-alloy smelting as deoxidizer

• High fixed carbon (84% max)

• Low ash (9% max)

• Low Phosphorus (0.03% max)

• Low Sulfur (0.4%max)

• high specific resistance

• high chemical activity

• High conductivity to lower the electric power

• Reduce pollution

– Advantage of semi coke than Met Coke in production of Ferro-alloy smelting as deoxidizer

(1),Semi Coke could improve the quality of the ferroalloy significantly (especially low aluminum alloy Al2O3≤0.1%).

(2),Semi Coke could reduce unit electricity consumption significantly (nearly save more than 1000 KWHR, that means 8-10%)

(3), Semi coke could lower the cost of raw material. Although the price of semi coke and coke is similar, but it’s far cheaper than charcoal and pet-coke

(4),It’s very simple to replace coke, pet-coke and charcoal with semi coke. It’s no need to upgrade your equipment and the operation is easy and process is simple.


• Semi coke powder can be used in blast furnace instead of coal injection in steel-making ;

• 0-6mm semi coke can be used for sintering Mn ore in process of production SiMn; or using in other sinter mill.

• 6-18mm semi coke can be used in producing Ferronickel , Ferrosilicon ,Calcium Carbide and other ferroalloys.