All right

so yeah

this is essentially what we discussed about

which is what forms of

ore we have.

The most important ones being lump ore

cinta and pellets

plasmidological coke.

Another thing is iron ore.

We actually have on this planet pretty good amount of research, so there's no sign that

we're going to run out of iron ore anytime soon.

Metallurgical coke, different story.

So we're definitely nearing the end of the availability

readily available amounts of

metallurgical coke to run blast furnaces.

This is one of the reasons why large steel companies are surprisingly open to hydrogen

based direct reduction

because they also see that even if CO2 wasn't the issue

just

simply the availability of metallurgical coke and metallurgical coal would become an issue

pretty soon.

It partially already is.

Metallurgical coke, why is it different?

I already mentioned it last time because we have pretty strong requirements for the coke

and the requirements are porosity

so gas throughput essentially

and structural strength

because we have the entire charge of the furnace

the entire charge of the blast furnace

we

have sitting on top of the coke

pushing down on it

so if the coke doesn't have enough

strength it's going to collapse and our blast furnace is going to stop.

Additionally, what do we have?

We're going to talk about those a little bit later in a bit more detail.

So we have slag formers

and the slag formers are most importantly limestone

burnt lime

the brand kalks.

Then we can also put in BOF slag

it says here LD slag

which stands for Linz Donowitz

which is the original BOF

but essentially it's basic oxygen furnace slag

because that's

a relatively basic slag

we'll talk about that later

what slag acidity essentially means.

And we can also put in olivine and dolomite as slag formers