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A recovery filter device for lufenuron reduction catalyst

A filter device and catalyst technology, applied in the direction of filtration separation, gravity filter, fixed filter element filter, etc., can solve the problems affecting the recovery of palladium carbon, reduce the possibility of lock nut slippage, increase the filtration area, reduce the The effect of entrainment rate

Active Publication Date: 2022-04-29
SHANGYU JINTENG MEDICAL CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In order to improve the current palladium-carbon filtration and recovery process, the high liquid-carrying rate of palladium-carbon affects the subsequent recovery of palladium-carbon, the application provides a recovery and filtration device for lufenuron reduction catalyst

Method used

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  • A recovery filter device for lufenuron reduction catalyst
  • A recovery filter device for lufenuron reduction catalyst
  • A recovery filter device for lufenuron reduction catalyst

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Embodiment Construction

[0050] The following is attached Figure 1-6 The application is described in further detail.

[0051] The embodiment of the present application discloses a recovery and filtration device for lufenuron reduction catalyst.

[0052] refer to figure 1 with figure 2 , the recovery and filtration device for lufenuron reduction catalyst includes a support 1 , a filter tank 11 , a filter structure 2 , a drain pipe 12 and a vacuum pipe 13 . The filter tank 11 is fixed on the bracket 1, the filter structure 2 is arranged in the filter tank 11 and the filter tank 11 is divided into upper and lower spaces, wherein, the space above the filter structure 2 is used for accepting materials, and the space below the filter structure 2 is used for To receive the filtrate.

[0053] refer to figure 1 with figure 2 , the drain pipe 12 is fixedly connected to the bottom wall of the filter tank 11 and communicates with the filter tank 11 , and the filtrate in the filter tank 11 is discharged f...

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Abstract

The application relates to a recovery and filtration device for lufenuron reduction catalyst, belonging to the field of lufenuron synthesis process, including a filter tank, a filter structure, a drain pipe and a vacuum tube, and the filter structure is arranged in the filter tank The filter tank is divided into upper and lower spaces, the drain pipe is connected to the bottom wall of the filter tank, the vacuum tube is arranged on the peripheral wall of the filter tank and the vacuum tube is located below the filter structure. The present application has the effect of being able to obtain palladium carbon with a lower liquid-carrying rate.

Description

technical field [0001] The present application relates to the field of lufenuron synthesis technology, in particular to a recovery and filtration device for lufenuron reduction catalyst. Background technique [0002] Lufenuron, the chemical formula is C 17 h 8 C l2 f 8 N 2 o 3 , white crystal, CAS accession number: 103055-07-8. It is an insect chitin synthesis inhibitor announced by Novartis in 1997, and belongs to benzoylurea insecticides. It is mainly used to prevent and control larvae of Lepidoptera such as cotton, corn, vegetables, and fruit trees; it can also be used as a sanitary drug; it can also be used to prevent and control pests in animals such as cattle. The agent kills the pests by acting on the insect larvae and stopping the peeling process, and is especially effective against leaf-eating caterpillars such as fruit trees. [0003] At present, there are two main synthetic routes of lufenuron: [0004] Route 1 is obtained by condensing 2,6-difluorobenzoy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D29/50B01D29/03B01D29/27B01D29/80
CPCB01D29/50B01D29/03B01D29/27B01D29/80
Inventor 尹凯顾旻旻贺友兰吴浩柴华强
Owner SHANGYU JINTENG MEDICAL CHEM IND
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