Method for removing raw liquid protein for acrylamide production
By employing a synergistic process of pretreatment, adsorption, membrane separation, online monitoring, and ion exchange, and using composite adsorbents and multi-stage membrane separation, the problem of incomplete protein removal in acrylamide production has been solved. This has resulted in efficient and stable protein removal, extended the service life of membranes and resins, and improved product quality and process stability.
CN122145331APending Publication Date: 2026-06-05NANTONG BOYI CHEM CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANTONG BOYI CHEM CO LTD
- Filing Date
- 2026-02-25
- Publication Date
- 2026-06-05
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Abstract
The application relates to the technical field of separation and purification, and particularly discloses a method for removing protein from a stock solution for acrylamide production, which comprises the steps of hydrating liquid pretreatment, composite adsorbent adsorption treatment, multistage membrane separation, online monitoring and circulation control, and multifunctional ion exchange. Protein is condensed by creating a specific temperature and pH environment, the protein is efficiently adsorbed by using a beta-cyclodextrin-chitosan-activated carbon composite adsorbent, multistage filtration is conducted through a ceramic microfiltration membrane and an ultrafiltration membrane, real-time monitoring and circulation optimization are conducted according to turbidity, and finally, deep purification is conducted through ion exchange resin with a specific loading ratio. The removal method has the advantages of high protein removal efficiency and good repeatability.
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