Methods and systems for processing an acetonitrile waste stream
US10336690B2 · kind B2 · utility
1Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2015 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H21/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for purifying an acetonitrile waste stream are provided. An exemplary method for purifying an acetonitrile waste stream includes generating an acetonitrile waste stream during oligonucleotide synthesis and fractionating the acetonitrile waste stream to produce a single overhead fraction. The method includes condensing the single overhead fraction to produce a condensed single overhead fraction and contacting the condensed single overhead fraction with an adsorbent material to produce an acetonitrile stream that comprises an amount of an impurity that is reduced relative to the acetonitrile waste stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.