Centrifugation of cinnabar, powellite and wulfenite

This is a question that I have been puzzled about: why can the minerals of these compounds (not mixtures) be directly centrifuged into their corresponding elements? It seems unreasonable. Is this just a design to reduce the difficulty of the game or a reference prototype in reality?


Wait Cinnabar was supposed to be roasting by now, that might be a mistake that you can still centrifuge it.

As for the other two, its a mix of prototype and ease of gameplay indeed…

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Wait, cinnabar doesn’t need to be changed, otherwise it will damage the mercury bath production line.

In reality, cinnabar is directly heated and decomposed into sulfur and mercury under the condition of air isolation. When oxygen is added, sulfur dioxide and Mercury will be generated. Since mercury is liquid, it is difficult to add recipe in the roasting oven. This may be the reason why cinnabar has not been roasted so far.

As for powellite and wulfenite, I don’t know what the real prototype is? Do you have relevant information?


Hrrm, yeah Mercury needs to be gotten somewhere, I need to find a good way I guess.

I do not have any actual Data on them, they were copied from PFAA.

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For powellite and wulfenite, I think at least electrolysis is more reasonable than centrifugation. After all, they are compounds rather than mixtures.
I did find some information about how they process, although not many people studied them because their reserves are far less than molybdenite and smelting difficulties (the same is true in the game, they are only generated in bedrock veins and molybdenum veins at the end, and the generation probability is far less than molybdenite).

As an element of the same group as tungsten, the smelting of molybdate minerals is similar to that of tungstate. However, for gt6, molybdenum is not as important as tungsten (unless you really intend to use high-speed steel as an important material in the later stage rather than manufacturing high-performance tools like gt5u), so it is not necessary to add complex processing like tungsten.

For wulfenite, there are two main leaching methods: sodium hydroxide leaching and sodium sulfide leaching to separate molybdenum and lead. In addition, some people have been studying other leaching methods in recent years, but it seems that they have not been applied on a large scale:

Sodium Hydroxide process:

Lead hydroxide forms precipitates and separates from the solution. However, it should be noted that if excessive alkali is added, sodium plumbite will be produced and lead will be re dissolved. This is also the biggest disadvantage of sodium hydroxide method.

Sodium Sulfide process:
Lead forms lead sulfide precipitation and is separated from the solution. The main advantage of this method is that it can reduce the possible residual lead. The disadvantage is that it requires a relatively high leaching temperature, and excessive sodium sulfide will produce sodium thiomolybdate, which increases the difficulty of subsequent treatment.
Sodium molybdate solution needs to be purified by removing impurities for many times (it is pure by default in the game, so it is not necessary), and then hydrochloric acid is added to form molybdic acid precipitation. In reality, there are impurities in the crude molybdic acid, Ammonia needs to be added to form Ammonium heptamolybdatefor recrystallization and purification (molybdate is troublesome, and it is easy to form heteropoly acid according to the pH, resulting in huge molecular weight and difficult to balance, so this step can be omitted in the game, just like tungsten), and ammonium paramolybdate is heated to decompose into molybdenum trioxide (in some places, acid is added again to form refined molybdic acid, and then heated and dried to form molybdenum trioxide). Finally, like tungsten, And reduced to molybdenum with hydrogen.

As for powellite, because it is too rare, it is almost impossible to find information about how it is processed (most of the information found is collected by minerals…). Fortunately, I have found some information about recovering calcium molybdate from waste liquid containing molybdenum and then treating it into molybdenum trioxide, which should be used as a reference.

The data shows that calcium molybdate can be directly decomposed into calcium chloride and molybdic acid by hydrochloric acid, just like scheelite. There is no need to worry about this. Some places still have to go through ammonium heptamolybdate (really annoying), because impurities and excessive hydrochloric acid may produce molybdenum chloride (but there is no need to worry in the game).

Of course, if you think these are too troublesome, put them directly into the electrolyzer. Anyway, molybdenum is not very important.

Note: molybdenum is a possible option (though not common) in the process of upgrading the crucible. Pay attention to the possible consequences.


I do use molybdenum in the crucible upgrading path, so that I can avoid the iridium crucible. After that I never used any molybdenum at all.
With so limited usages, I think people will not bother doing a complex chemical process to get it.


This definitely reminds me of Tungsten processing chain. And it makes sense, since Tungsten is directly below Molybdenum on the Periodic Table, right?

And it also leaves the question about Chromium, which is above Molybdenum. At this point I think it’s reasonable to say that such complexity would certainly be overwhelming, if applied to such an early-game material. And breaks progression, since you need Chromium for Stainless Steel for Mixers for Chemistry.
Stainless Steel is produced from Ferrochromium (which is reduced from Chromite) instead of pure Chromium though. And making it more complex to get Chromium than Ferrochromium could actually make sense, since Chromium in GT6 is higher tier than Stainless Steel.
Personally I have more trouble finding a Chromite vein anyway.


There’s actually many “just electrolyze the Oxide” recipes in GT6, which, perhaps can be considered as some sort of placeholders for unfinished production routes? Seldom do IRL metal refining electrolyze the Oxides, with the notable exception of Aluminium. More commonly Chlorides get electrolyzed. For Aluminium, the Chloride is a Molecular Compound instead of an Ionic Compound, and doesn’t conduct electricity even when molten. For ionic chlorides, it’s reasonable to consider it viable for electrolysis.

Also, I agree that at least it should be Electrolysis instead of Centrifugation, for a decomposition of compounds.

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