Method and apparatus for dissolving nickel in molten zinc
US4717540A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Sep 8, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D3/0026
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A rotatable device is suspended in a melt of zinc and the device is rotated to draw a vortex in the melt. The device comprises a hollow cylinder having an open top and a closed bottom. An array of openings in the cylinder side wall is adapted to allow zinc melt to pass through. Nickel is added in particulate form into the vortex in the device. The openings in the cylindrical wall are adapted to retain the nickel particulates in the device to be washed with molten zinc until the particulates are substantially dissolved. The temperature is kept at a minimal value, i.e., no superheat is required to dissolve the nickel homogeneously throughout the zinc melt. After the nickel is dissolved, the nickel-zinc melt is solidified in zinc slabs. The zinc slabs containing nickel have narrow standard deviations from their specification. The dissolving proceeds more efficiently with formation of less dross and less off-specification material, proceeds faster and in less time than heretofore possible, and allows production on a continuous basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.