| 摘要 |
An emulsion polymerization process using a reactor (1) having: one or more circulation loops (2) with one or more inlets (3) for raw material, one or more inlets (4) for a carrier liquid in which the polymer to be formed is insoluble, and one or more outlets (5) for polymer emulsion; one or more driving means (6) for continuously circulating the reactor charge within the circulation loop (2). The process comprises the following steps: charging the reactor (1) with raw material, including monomers, and with the carrier liquid, including stabilizers, and optionally other additives; then continuously feeding the loop reactor (1) with the raw material and with the carrier liquid; and continuously withdrawing part of the reactor charge from the reactor (1) at a rate equal to the rate of total raw material and carrier liquid feeding. The carrier liquid, or water phase, consists wholly or partially of washings used for washing one or more parts of the same or a different polymerization reactor and/or associated equipment. The invention also pertains to a loop reactor (1) for carrying out such process. |
