Iron briquettes
AssigneeHYBRIT Development AB
InventorsNiklas Kojola, Du Sichen, Joar Huss, Amanda Vickerfält, Martin Pei
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Abstract
The present disclosure relates to an iron briquette produced by providing sponge iron pellets, providing carbon powder, producing a mixture of the sponge iron pellets and the carbon powder, and briquetting the mixture to provide an iron briquette comprising compressed sponge iron pellets and carbon powder located in interstitial spaces between the compressed sponge iron pellets, wherein the iron briquette comprises at least 0.2 wt % carbon powder, and wherein the sponge iron pellets comprise at least 0.5 wt % iron oxide and are essentially free of carbon. The disclosure further relates to a method for producing such an iron briquette.
Claims17
An iron briquette (109, 209) produced by providing sponge iron pellets (108, 208), providing carbon powder (114, 214), producing a mixture comprising the sponge iron pellets and the carbon powder, and briquetting the mixture to provide an iron briquette comprising compressed sponge iron pellets (245) and carbon powder (214) located in interstitial spaces (247) between the compressed sponge iron pellets, wherein the iron briquette comprises at least 0.2 wt % carbon powder, and wherein the sponge iron pellets comprise at least 0.5 wt % iron oxide and are essentially free of carbon.
An iron briquette (109, 209) produced by providing sponge iron pellets (108, 208), providing carbon powder (114, 214), producing a mixture comprising the sponge iron pellets and the carbon powder, and briquetting the mixture to provide an iron briquette comprising compressed sponge iron pellets (245) and carbon powder (214) located in interstitial spaces (247) between the compressed sponge iron pellets, wherein the iron briquette comprises at least 0.2 wt % carbon powder, and wherein the sponge iron pellets have a median diameter of greater than about 7 mm prior to briquetting, comprise at least 0.5 wt % iron oxide, and are essentially free of carbon, comprising less than about 0.1 wt % carbon.
Dependencies are inferred from the claim text.