Industrialized production device and method for flame-retardant polymer polyols
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: 2019-09-27
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 provides an industrialized production device and method for flame-retardant polymer polyols. The industrialized production device for the flame-retardant polymer polyols mainly comprises a polymerization reaction kettle I, a polymerization reaction kettle II and a solvent removal solidification kettle; the polymerization reaction kettle II is connected with the polymerization reaction kettle I, the polymerization reaction kettle I is connected with the solvent removal solidification kettle, and the solvent removal solidification kettle is connected with a product storage groove and a solvent recovery storage tank; the solvent removal solidification kettle is provided with a condensing device, and the solvent recovery storage tank is used for solvent removal after polymerization and connected with a vibrating screen and the product storage groove. The method comprises the working procedures of preparation of pre-condensation liquids, polymerization and solvent removal. The primary pre-condensation liquid is obtained by putting raw materials into the polymerization reaction kettle I for a polymerization reaction, the secondary pre-condensation liquid is obtained by putting raw materials into the polymerization reaction kettle II for a polymerization reaction and then transferred into the polymerization reaction kettle I for the working procedure of polymerization, and after polymerization is completed, a mixed liquid is transferred to the solvent removal solidification kettle for solvent removal. The industrialized production device and method are suitable for being applied to the polymer polyols.
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