solfato di nichel battery-grade da MHP

flowchart LR mhpDissolution["dissoluzione MHP in H2SO4"] coNiSeparation["separazione Ni/Co con SX"] nickelSulfateCrystallization["cristallizzazione NiSO4·6H2O"] coNiSeparation --> nickelSulfateCrystallization s_mhpNickel(["precipitato idrossido misto (MHP Ni-Co)"]):::role_rawMaterial s_mhpNickel --> mhpDissolution s_sulfuricAcid(["acido solforico"]):::role_rawMaterial s_sulfuricAcid --> mhpDissolution s_nickelSulfateCrude(["NiSO4 in soluzione (pre-cristallizzazione)"]):::role_intermediate mhpDissolution --> s_nickelSulfateCrude s_cobaltSulfate(["solfato di cobalto eptaidrato"]):::role_byproduct mhpDissolution -.-> s_cobaltSulfate s_nickelSulfateCrude --> coNiSeparation s_cobaltSulfate --> coNiSeparation coNiSeparation -.-> s_cobaltSulfate s_nickelSulfateCrude --> nickelSulfateCrystallization s_nickelSulfate(["solfato di nichel esaidrato"]):::role_finalProduct nickelSulfateCrystallization --> s_nickelSulfate classDef role_rawMaterial fill:#e8f4ff,stroke:#06c,color:#003 classDef role_finalProduct fill:#e8ffe8,stroke:#0a7,color:#030 classDef role_intermediate fill:#f0f0f0,stroke:#666,color:#333 classDef role_byproduct fill:#fff4e0,stroke:#cc7a00,color:#642 classDef role_waste fill:#fae8e8,stroke:#888,stroke-dasharray:3 3,color:#444 classDef role_utility fill:#e0f7f7,stroke:#06c8c8,color:#033 classDef role_catalyst fill:#fde0f0,stroke:#cc3399,color:#506 classDef role_mine fill:#f5e6d3,stroke:#8b5a2b,color:#3d2e15,stroke-width:2px

PREFIX chem: <https://ontology.siletto.it/chem-pipeline#>
SELECT ?role ?substance WHERE {
  ?substance chem:playsRole ?ra .
  ?ra chem:role ?role ; chem:inPipeline chem:nickelSulfateBatteryPipeline .
} ORDER BY ?role