Storage device for cyclic impurity removal of diethyltoluenediamine

A diethyltoluenediamine and storage device technology, which is applied in the field of diethyltoluenediamine cyclic impurity removal storage device, can solve the problems of chemical property influence, low catalyst impurity removal efficiency, etc., and achieve the effect of chemical property stability

Active Publication Date: 2021-12-10
南京南华航空产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome in the prior art, diethyltoluenediamine will come into contact with the air during the supernatant is drawn out and collected by using a pumping pump, causing the color of diethyltoluenediamine to change, and the chemical properties will also be affected; Add hydrochloric acid to the solution, at this time, the hydrochloric acid solution will diffuse from top to bottom. During the diffusion process, the catalyst precipitates out and settles down, and after the precipitation reaction occurs in the diethyltoluenediamine solution, use centrifugal operation to settle the precipitate Aggregation, at this time, the precipitate gathers to the bottom of the solution, but at the same time, different ions in the solution diffuse up and down during the centrifugation process, which will lead to the phenomenon that the precipitate that has been precipitated at the bottom of the solution is partially dissolved, so that the precipitate dissolves repeatedly after precipitation , making catalyst impurity removal inefficient, the technical problem of the present invention is to provide a storage device for cyclic removal of diethyltoluenediamine

Method used

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  • Storage device for cyclic impurity removal of diethyltoluenediamine
  • Storage device for cyclic impurity removal of diethyltoluenediamine
  • Storage device for cyclic impurity removal of diethyltoluenediamine

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as Figure 1-3 As shown, a storage device for circulating and removing impurities of diethyltoluenediamine includes installation side frame column 1, tank body fixing ring 2, storage tank body 3, fixed bottom frame 4, installation platform 5, exhaust isolation feeding System 6, precipitation stratification system 7, precipitation collection gas exchange system 8, first pipeline connection component 9, conical collection chassis 12, second pipeline connection component 13, motor frame plate 14 and seventh pipeline connection component 15; installation side A tank fixing ring 2 is welded on the left top and the left middle of the frame column 1; a storage tank 3 is affixed to the inside of the two tank fixing rings 2; a fixed bottom frame 4 is affixed to the bottom of the outer surface of the storage tank 3 The top of the storage tank 3 is connected with an exhaust isolation feeding system 6; the left bottom of the exhaust isolation feeding system 6 is connected with...

Embodiment 2

[0040] On the basis of Example 1, such as Figure 4-6 As shown, the exhaust gas isolation feeding system 6 includes a socket seat 601, a nitrogen storage tank 602, a third pipeline connection assembly 603, a pipe rack plate 604 and an exhaust liquid storage assembly; the top of the storage tank 3 is installed with an exhaust liquid storage Components; the top of the installation platform 5 is equipped with a socket seat 601; the inner side of the socket seat 601 is fixedly connected with a nitrogen storage tank 602; The frame plate 604; the top of the pipe frame plate 604 is sleeved in the middle of the outer surface of the third pipe connecting component 603; the third pipe connecting component 603 is fixedly inserted into the exhaust liquid storage component.

[0041] The third pipeline communication component 603 is controlled to be opened, and then the nitrogen inside the nitrogen storage tank 602 enters the exhaust liquid storage component along the third pipeline communi...

Embodiment 3

[0045] On the basis of Example 2, such as Figure 7-8 As shown, the precipitation layering system 7 includes a power motor 701, an installation insertion rod 702, a side opening and closing layering plate 703, a fixed bearing sleeve 704, a bearing frame plate 705, a rotating shaft rod 706, a sliding insertion rod 707, and an insertion sliding sleeve Rod 708, triangular settling guide column 709, middle joint plate 7010 and sediment removal assembly; motor frame plate 14 top left bolt is connected with power motor 701; storage tank body 3 front side middle left part is rotationally connected with installation inserting rod 702 ; The installation rod 702 is fixedly connected to the output shaft of the power motor 701; the outer surface of the installation rod 702 is fixedly sleeved with a side opening and closing layered plate 703; the rear side of the installation rod 702 is rotationally connected with a fixed bearing sleeve 704; the fixed bearing The sleeve 704 is fixedly plug...

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Abstract

The invention relates to the field of diethyltoluenediamine, in particular to a storage device for cyclic impurity removal of diethyltoluenediamine. The technical problem to be solved by the invention is to provide the storage device for cyclic impurity removal of the diethyltoluenediamine. The storage device for cyclic impurity removal of the diethyltoluenediamine comprises a mounting side frame column, tank body fixing rings, a storage tank body, a fixing underframe, a mounting table, an exhaust isolation feeding system, a precipitation layering system and a precipitation aggregation gas exchange system, wherein the tank body fixing rings are welded to the top and the middle of the left side of the mounting side frame column correspondingly. According to the storage device, storage is realized, meanwhile, an arylamine catalyst and an arylamine derivative inside are subjected to precipitation separation through continuous precipitation and solution layering, ion diffusion of a lower layer solution body and an upper layer solution body in a solution is avoided through a layering separation mode during the centrifugal precipitation aggregation process, and the secondary dissolution of precipitate can be avoided.

Description

technical field [0001] The invention relates to the field of diethyltoluenediamine, in particular to a storage device for circulating and removing impurities of diethyltoluenediamine. Background technique [0002] At present, it is mentioned in the prior art Chinese patent CN210545136U that "at present, an excessive amount of arylamine catalyst will be added when the diethyltoluene diamine stock solution is prepared, and these catalyst residues and a small amount of arylamine derivatives will affect the diethyltoluene diamine The purity of the amine stock solution is generally mixed by adding a certain amount of hydrochloric acid to the diethyltoluenediamine stock solution tank, so that this part of the residual catalyst is converted into precipitates, and then the supernatant is collected by the pump. However, due to the above The precipitation in the process takes a long time, and the sealing corrosion of the pump by the mixed liquid is serious, resulting in an increase in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/00B65D88/74B65D90/22B01D21/26C07C209/84C07C211/51
CPCB65D88/74B65D90/00B65D90/22C07C209/84C07C211/51B01D21/26
Inventor 蔡友军
Owner 南京南华航空产业有限公司
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