Separation of Solids from Aqueous Suspensions Using Modified Amine Functional Polymers
- 详细技术说明
- None
- *Abstract
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Polyvinylaminals, optionally as the formed copolymer with polyvinylhemiaminals and polyvinylacetals are useful as separating agents and are provided by reacting a poly(vinylamine) or a copolymer containing vinyl alcohol and vinylamine units with a monoaldehyde. The aldehyde, such as butyraldehyde, can be introduced into the polymer aminalization as a liquid or gas, generally in a proportion of about 0.02 to 0.5 mol per mol of alcohol and amine units in the polymer chain. These polymers, especially as the cationic salt, perform very well in the flocculation, settling, clarification and dewatering of wastewater. This invention relates to suspended solids separation with a polymer containing both amine and aminal and optionally acetal functionality. Additionally, it relates to such use for polymers prepared by reacting precursor polymers containing aminal and optionally alcohol functionality with aldehydes.
- *Principal Investigation
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Name: Air Products
Department: Corporate
- 国家/地区
- 美国
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