4) water absorbent in food industry, fruit and vegetable preservative.
工艺流程
Technological process
Process flow
Process flow
目前商业生产的制程以共聚物化学法为主
At present, the process of commercial production is mainly based on copolymer chemistry.
流程：丙烯酸和氢氧化钠混合，在碱性环境下进行利用自由基引发剂聚合来生成聚丙烯酸钠（SAP）。
Process: mixture of acrylic acid and sodium hydroxide, and polymerization of sodium polyacrylate (SAP) in alkaline environment by polymerization of free radical initiator.
操作流程：中和流程、交联剂预混、聚合反应、后期处理
Operation process: neutralization process, crosslinking agent premixing, polymerization, post processing.
中和流程：将丙烯酸、氢氧化钠等原料进行中和，并控制温度不超过45℃。
Neutralization process: neutralize acrylic acid, sodium hydroxide and other raw materials, and control the temperature no more than 45 degrees.
交联剂预混：将中和液放入预混釜中，加入阻聚剂保持温度在38~45℃
Crosslinker premixed: put neutralization liquid into premixed kettle, add inhibitor to keep temperature at 38~45 C.
聚合反应工段：控制温度在40~42℃，加入引发剂。
Polymerization process: control temperature at 40~42 C, add initiator.
注：淄博聚隆高分子吸水树脂化工有限公司仅生产销售工业级高吸水性树脂（SAP），不涉及食品级、医药级产品。
