Flame-retardant polymer polyol industrial production equipment and production method
A production method and polymer technology, which is applied in the field of flame-retardant polymer polyols and polymer polyols, can solve the problems of single product and non-environmental protection, and achieve the effects of solving output, increasing output, and good environmental protection
Active Publication Date: 2022-03-29
HANGJIN JINXI CHLOR-ALKALI CHEM CO LTD
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Problems solved by technology
There have been some reports on reactive flame-retardant polyether polyols and polymer polyols, but they all have problems such as single products and environmental protection, and have not been put into production.
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[0019] As shown in the figure, the flame-retardant polymer polyol industrial production equipment mainly includes polymerization reactor Ⅰ1, polymerization reactor Ⅱ2 and solvent removal curing kettle 3. Polymerization reactor Ⅱ is connected to polymerization reactor Ⅰ, and polymerization reactor Ⅰ is connected to Removal of the solvent curing kettle is connected, and the solvent removal curing kettle is connected with the product storage tank 7 and the solvent recovery storage tank 4;
[0020] Polymerization reactor Ⅰ and polymerization reactor Ⅱ are respectively equipped with solid feed port and liquid feed port, equipped with temperature control and stirring device. Secondary pre-shrinkage production; solvent removal The curing kettle is equipped with a condensing device 5, a solvent recovery storage tank, equipped with a temperature control and stirring device for solvent removal after polymerization, and is connected to a vibrating screen 6 and a product storage tank.
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Abstract
The invention proposes industrial production equipment and a production method for flame-retardant polymer polyols. The industrial production equipment of flame-retardant polymer polyol mainly includes polymerization reactor Ⅰ, polymerization reactor Ⅱ and solvent removal curing kettle. Polymerization reactor Ⅱ is connected with polymerization reactor Ⅰ, and polymerization reactor Ⅰ is connected with solvent removal curing kettle The solvent removal curing kettle is connected to the product storage tank and the solvent recovery storage tank; the solvent removal curing kettle is equipped with a condensation device, and the solvent recovery storage tank is used for solvent removal after polymerization, and is connected to the vibrating screen and the product storage tank. The present invention adopts pre-shrunk solution preparation process, polymerization process and solvent removal process. Put the raw materials into the polymerization reactor I for the first pre-shrinkage solution, put the raw materials into the pre-polymerization reactor II for the second pre-shrinkage solution, and transfer the second pre-shrinkage solution to the polymerization reactor I for the polymerization process. Complete pipetting to remove solvent curing kettle for solvent removal. Suitable as polymer polyol application.
Description
technical field [0001] The invention relates to polymer polyols in the chemical industry, in particular to 500-ton / year industrialized production equipment and production methods of flame-retardant polymer polyols. Background technique [0002] At present, the flame retardant technology of polyurethane products is mainly divided into two categories. The additive type is widely used in production, that is, the flame retardant additive containing phosphorus or phosphorus and halogen is added to the raw material polyether polyol and polymer polyol. The flame retardant effect is achieved, but there are disadvantages such as poor compatibility between the polymer and the flame retardant additive, and easy sedimentation. Another type of reaction is to pour flame retardant elements such as phosphorus and halogen into the chain segments of polyether polyols, polyester polyols, and polymer polyols, which are raw materials for polyurethane products, so as to have flame retardancy. Th...
Claims
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IPC IPC(8): C08G12/32C08G12/12C08G18/54C08G18/40C08G18/48
CPCC08G12/32C08G12/12C08G18/544C08G18/4027C08G18/4829
Inventor 张格亮王兵孙海涛吴越李智超
Owner HANGJIN JINXI CHLOR-ALKALI CHEM CO LTD