poliuretano via MDI

flowchart LR benzeneNitration["nitrazione benzene"] nitrobenzeneHydrogenation["idrogenazione nitrobenzene → aniline"] mdiPhosgenation["fosgenazione MDI"] polyolSynthesis["sintesi polietere poliolo"] puFoaming["schiumatura PU (MDI + poliolo)"] s_benzene(["benzene"]):::role_rawMaterial s_benzene --> benzeneNitration s_nitricAcid(["acido nitrico"]):::role_rawMaterial s_nitricAcid --> benzeneNitration s_sulfuricAcid(["acido solforico"]):::role_rawMaterial s_sulfuricAcid --> benzeneNitration s_nitrobenzene(["nitrobenzene"]):::role_intermediate benzeneNitration --> s_nitrobenzene s_water(["acqua"]):::role_byproduct benzeneNitration -.-> s_water s_nitrobenzene --> nitrobenzeneHydrogenation s_hydrogen(["idrogeno"]):::role_rawMaterial s_hydrogen --> nitrobenzeneHydrogenation s_platinumZeoliteCatalyst(["catalizzatore Pt-zeolite"]):::role_catalyst s_platinumZeoliteCatalyst -.-> nitrobenzeneHydrogenation s_aniline(["anilina"]):::role_intermediate nitrobenzeneHydrogenation --> s_aniline nitrobenzeneHydrogenation -.-> s_water s_aniline --> mdiPhosgenation s_phosgene(["fosgene"]):::role_rawMaterial s_phosgene --> mdiPhosgenation s_mdi(["MDI difenilmetano diisocianato"]):::role_intermediate mdiPhosgenation --> s_mdi s_hydrochloricAcid(["acido cloridrico"]):::role_byproduct mdiPhosgenation -.-> s_hydrochloricAcid s_propyleneOxide(["ossido di propilene"]):::role_rawMaterial s_propyleneOxide --> polyolSynthesis s_ethyleneOxide(["EO"]):::role_rawMaterial s_ethyleneOxide --> polyolSynthesis s_amberlystResin(["resina solfonica Amberlyst-15"]):::role_catalyst s_amberlystResin -.-> polyolSynthesis s_polyetherPolyol(["polietere poliolo"]):::role_intermediate polyolSynthesis --> s_polyetherPolyol s_mdi --> puFoaming s_polyetherPolyol --> puFoaming s_polyurethane(["poliuretano"]):::role_finalProduct puFoaming --> s_polyurethane 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:polyurethanePipeline .
} ORDER BY ?role