Devices and methods of using small form aluminum in consecutive batch aluminum chlorohydrate processes
US11583817B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 4, 2019 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Mar 4, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00911
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.