The slave ship S José Diligente Vulcano arrived with enslaved Africans in Brazil. About 444 people had been taken aboard and approximately 385 arrived.

Vessel: S José Diligente Vulcano; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Oliveira, José Malaquias de; Captain: Guimarães, Francisco José Gomes; Investor: Guimarães, Francisco José Gomes; Captain: Alves, Isidoro; Investor: Alves, Isidoro. The voyage began at Rio de Janeiro on 21 September 1817. Principal recorded place where captives were acquired: Luanda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 38 days. Estimated mortality during the crossing: 13.0%. Recorded outcome: Voyage completed as intended.