一种交联型聚丙烯酰胺生产工艺
By spraying a hydrophobic nano-ceramic coating onto the inner wall of the polymerization reactor and controlling the reaction temperature, combined with a four-roll mill and a dual-chamber high-square sieve, the problem of colloid residue on the reactor wall was solved, improving production efficiency and product yield while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2022-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing polyacrylamide powder production process, the colloid generated after the polymerization reaction remains on the reactor wall, resulting in severe glue adhesion, which affects the continuity of production. In addition, the grinding and screening efficiency is low, leading to low production capacity and product yield.
The inner wall of the polymerization reactor is polished and coated with a hydrophobic nano-ceramic coating made of stainless steel. The polymerization reaction temperature is controlled and the reactor is vented at high temperature. The colloid is then ground and screened using a four-roll mill and a double-chamber high square screen to control the particle size.
It effectively prevents colloids from remaining on the reactor wall, improves the production line's processing capacity and product yield, and reduces production costs.
Smart Images
Figure CN117285677B_ABST