초록 ▼

The present invention provides a stirring apparatus for mixing, with metallic iron masses, a concentrated strongly acidic ferric chloride waste fluid containing iron and one or more other heavy metals in which the content of nickel is highest, the stirring apparatus being characterized by comprising

The present invention provides a stirring apparatus for mixing, with metallic iron masses, a concentrated strongly acidic ferric chloride waste fluid containing iron and one or more other heavy metals in which the content of nickel is highest, the stirring apparatus being characterized by comprising a rotating mechanism for rotating a container, and a passage which is disposed in a rotary shaft and through which excess gas and liquid generated during stirring is discharged into the outside.

대표청구항 ▼

Apparatus for separating heavy metals from a ferric chloride waste fluid containing said heavy metals and metallic iron masses, wherein said heavy metals include iron and a substantial portion of nickel, said nickel having a tendency to adhere to the surface of said metallic iron masses, said appara

Apparatus for separating heavy metals from a ferric chloride waste fluid containing said heavy metals and metallic iron masses, wherein said heavy metals include iron and a substantial portion of nickel, said nickel having a tendency to adhere to the surface of said metallic iron masses, said apparatus comprising a sealable container having a predetermined axis of rotation, said sealable container including a sealable entrance port for said ferric chloride waste fluid and said metallic iron masses and at least one exit port for withdrawing said separated heavy metals and treated ferric chloride waste fluid therefrom, feed pipe means for supplying said ferric chloride waste fluid to said entrance port of said sealable container, preliminary heating means for heating said ferric chloride waste fluid in said feed pipe means prior to supplying said ferric chloride waste fluid to said entrance port of said sealable container, rotating means for rotating said sealable container about said predetermined axis of rotation with sufficient intensity to substantially prevent said nickel from adhering to the surface of said metallic iron masses, and stopping means for stopping said rotating of said sealable container at a predetermined rotational angle. A method for separating heavy metals from a ferric chloride waste fluid containing heavy metals, wherein said heavy metals include iron and a substantial portion of nickel, said method comprising heating said ferric chloride waste fluid, supplying said heated ferric chloride waste fluid to a sealable container having a predetermined axis of rotation, adding metallic iron masses to said sealable container, sealing said sealable container, rotating said sealable container about said predetermined axis of rotation with sufficient intensity to substantially prevent said nickel from adhering to the surface of said metallic iron masses, and stopping said sealable container at predetermined rotational angles.