Control method for process of removing permanganate reducing compounds from methanol carbonylation process
US7271293B2 · kind B2 · utility
12Cited by
11References
6Claims
0Family size
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Key dates
| Filing date | Mar 2, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Sep 11, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a method of controlling a separation process for removing permanganate reducing compounds from a process stream in the methanol carbonylation process for making acetic acid, where the method includes the steps of measuring the density of a stream containing acetaldehyde and methyl iodide, optionally calculating the relative concentrations of acetaldehyde and methyl iodide in the stream, and adjusting distillation or extraction process parameters based on the measured density or one or more relative concentrations calculated therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.