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Production equipment for preparing blocked isocyanate

A technology for blocking isocyanate and production equipment, which is applied in the preparation of organic compounds, preparation of carbamic acid derivatives, feeding devices, etc., can solve problems such as poor continuity and low efficiency, and achieve improved stirring effect, improved reaction efficiency, and promotion of mixing uniform effect

Active Publication Date: 2017-03-15
马鞍山科英合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Aiming at the problems of poor continuity and low efficiency in the production process of blocked isocyanate in the prior art, the present invention provides a production equipment for preparing blocked isocyanate, which integrates a reactor unit, a circulation unit, a storage unit and a discharge unit Advanced production equipment can improve the continuity of the reaction and output process in the production process of blocked isocyanate, and improve production efficiency; further, the stirring effect of the reaction materials can be improved by accelerating the stirring through the circulation unit, and the uniform mixing of the materials can be promoted; further, through Conveyance and return pipes avoid the deposition of reaction products in the pipes and improve the output efficiency of products

Method used

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  • Production equipment for preparing blocked isocyanate
  • Production equipment for preparing blocked isocyanate
  • Production equipment for preparing blocked isocyanate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] like figure 1 and figure 2 As shown, a production equipment for preparing blocked isocyanate in this embodiment includes a reactor unit 100, a circulation unit 200, a discharge unit 300 and a storage unit 400; as figure 1 As shown, the reactor unit 100 includes a reactor main body 110, the lower part of the reactor main body 110 is connected to the storage unit 400 through the discharge unit 300, the discharge unit 300 is provided with a discharge pump 310, and the discharge pump 310 is used to discharge the reactor The product in the main body 110 is delivered to the storage unit 400 . The reaction process, the storage process and the output process constitute a complete production process, which can improve the continuity of the reaction steps and output steps in the production process of the blocked isocyanate, and improve the production efficiency.

[0057] Wherein the reactor unit 100 comprises a reactor main body 110 and a stirring mechanism 120, the reactor ma...

Embodiment 2

[0071] like image 3 As shown, the basic content of this embodiment is the same as that of Embodiment 1, the difference is that: the circulation unit 200 also includes an annular pipeline 270, which is arranged at the bottom of the reactor main body 110, and the annular pipeline 270 is connected with the circulation pump The pump outlet 242 of 240 is connected to each other, and the circulation nozzle 250 is evenly arranged on the circumference of the annular pipe 270, and there are 4-8 circulation nozzles 250, thereby improving the mixing and stirring effect of the material, so that the inner cavity of the entire reactor main body 110 The materials in the mixture are evenly mixed.

Embodiment 3

[0073] like figure 2 As shown, the basic content of this embodiment is the same as that of Embodiment 1, the difference is that: the reactor unit 100 also includes a lighting lamp 130, the upper part of the reactor main body 110 is provided with a universal lamp holder 112, and the lighting lamp 130 is installed on On the universal lamp base 112 , the illuminating lamp 130 can be rotated on the universal lamp base 112 , the illuminating lamp 130 is provided with a lamp handle 131 , and the lamp handle 131 is used for adjusting the irradiation angle of the illuminating lamp 130 .

[0074] By rotating or turning the lamp handle 131 , the illuminating lamp 130 can be rotated on the universal lamp holder 112 to adjust the irradiation angle of the illuminating lamp 130 to ensure that the operator can effectively observe the reaction process of the reactor main body 110 .

[0075] In addition, it is worth noting that: the lighting lamp 130 is provided with a glass lampshade 113, an...

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Abstract

The invention relates to production equipment for preparing blocked isocyanate and belongs to the technical field of preparation of the blocked isocyanate. The production equipment for preparing the blocked isocyanate comprises a reaction kettle unit, a circulating unit, a discharging unit and a storage unit, wherein the lower part of a reaction kettle main body is connected with the storage unit through the discharging unit; the circulating unit comprises a circulating gas inlet pipe, a circulating pump, a circulating nozzle and a gas conveying pipe; the circulating gas inlet pipe is arranged at the upper part of the reaction kettle main body and is connected with the top of a condensation container through a gas conveying pipe; the bottom of the condensation container is connected with the circulating nozzle through the circulating pump; and the circulating nozzle is arranged at the lower part in the reaction kettle main body. The integrated production equipment formed by the reaction kettle unit, the circulating unit, the storage unit and the discharging unit enables the reaction process, the storage process and the output process to form an integrated production process, improves the reaction efficiency of the reaction process and the output efficiency of the output process, and improves the production efficiency.

Description

technical field [0001] The invention belongs to the technical field of preparation of blocked isocyanates, and more specifically, provides a production equipment for preparing blocked isocyanates. Background technique [0002] Isocyanate is a general term for various esters of isocyanic acid. If it is classified by the number of -NCO groups, it includes monoisocyanate R-N=C=O and diisocyanate O=C=N-R-N=C=O and polyisocyanate isocyanates, etc. Monoisocyanate is an important intermediate in organic synthesis, which can be made into a series of carbamate insecticides, fungicides, and herbicides, and is also used to improve the water resistance of plastics, fabrics, and leather. [0003] The report on the capping of isocyanate groups began in 1949, and Petersen first reported the research on the capping of free isocyanate groups [1] . Then, Wicks et al. conducted a lot of research on blocked isocyanates [2-6] , and discusses in detail the blocking agent of various isocyanate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/18B01J19/00B01J4/00C07C269/02C07C271/60
CPCB01J4/00B01J19/0066B01J19/1881B01J2219/0869C07C269/02C07C271/60
Inventor 江志平
Owner 马鞍山科英合成材料有限公司