Method of cleaning the interior of polymerization reactor
US4863524A · kind A · utility
15Cited by
10References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Sep 7, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00252
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cleaning method for removing scales, etc., deposited on the interior of a polymerization reactor which has been used in emulsion or suspension polymerization. This method uses a chemical cleanser comprising a soap builder an, alkali agent, an aqueous solution or dispersion of a surfactant, and an organic solvent and/or polymerizable monomer. This system may further contain a plastic packing such as tellerettes. By this method, scales deposited on the interior of a polymerization reactor, particularly, scales deposited on the inside surface, agitator, and baffle-plates of the reactor, are compeltely removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.