CN211035755U

CN211035755U - Recycling device for oxime amine mother liquor

Info

Publication number: CN211035755U
Application number: CN201921931356.1U
Authority: CN
Inventors: 叶世森; 张少波; 徐康康; 叶涛
Original assignee: Jiujiang Fuda Industry Co ltd
Current assignee: Jiujiang Fuda Industry Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-07-17
Anticipated expiration: 2029-11-11

Abstract

The utility model relates to a chemical production equipment technical field especially relates to a device is used mechanically to oxime amine mother liquor recovery, including reation kettle, reation kettle's upper portion is through separately the pipeline respectively with aniline hydrochloride reation kettle, chloral solution preparation cauldron and hydroxylamine sulphate cauldron intercommunication, reation kettle lower part and centrifuge intercommunication, the centrifuge lower part is passed through the pipeline and is communicated with each other with solid material collecting vat and mother liquor collecting vat, the outside of mother liquor collecting vat is equipped with neutralization kettle, and neutralization kettle top is respectively through pipeline and mother liquor metering tank, alkali lye metering tank intercommunication separately, mother liquor in the mother liquor collecting vat is gone into mother liquor metering tank through pipeline and pump one pump, be equipped with pump two on the pipeline between neutralization kettle and the hydroxylamine sulphate cauldron, the liquid in the neutralization kettle is pumped back to the hydroxylamine sulphate cauldron through pump two. The utility model discloses after using in a large number and retrieving mother liquor for cover, next batch reaction need not add sodium sulfate basically, also can reduce hydroxylamine sulfate's quantity, has reduced resource consumption, increases the product yield.

Description

Recycling device for oxime amine mother liquor

Technical Field

The utility model relates to a chemical production equipment technical field especially relates to a device is used mechanically to oxime amine mother liquor recovery.

Background

The chemical name of the oximido amine is oximido acetanilide, and the dry product is white or light yellow powder. The oximidone is an intermediate for preparing isatin, and the isatin can be used for producing disperse yellow 54, yellow 64, quinaldine, medicines, analytical detection reagents and the like, and has a wide market prospect.

The traditional oxime amine process is as follows: feeding, heating, preserving heat, cooling, filtering and washing, namely adding a proper amount of sodium sulfate into bottom water, adding hydroxylamine sulfate, chloral and aniline hydrochloride into a pot after complete dissolution, heating to 80 ℃, preserving heat, cooling to normal temperature after heat preservation, filtering, washing with water, sending into an oven for drying, and pumping wastewater into a three-waste workshop for treatment. The main defects of the treatment method are as follows: low product yield, high raw material consumption, serious resource waste, large wastewater discharge, large three-waste treatment pressure and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at adapting to the practical needs and providing a device for recycling oxime amine mother liquor.

The utility model adopts the following technical scheme:

the utility model provides a device for oxime amine mother liquor is retrieved and is applied mechanically, includes reation kettle, reation kettle's upper portion is through pipeline separately respectively with aniline hydrochloride reation kettle, chloral solution preparation cauldron and hydroxylamine sulfate cauldron intercommunication, reation kettle lower part and centrifuge intercommunication, the centrifuge lower part is through pipeline and solid material collecting vat and mother liquor collecting vat intercommunication, the outside of mother liquor collecting vat is equipped with neutralization kettle, and neutralization kettle top is through pipeline separately and mother liquor metering tank, alkali lye metering tank intercommunication respectively, the mother liquor in the mother liquor collecting vat is gone into mother liquor metering tank through pipeline and pump one pump, be equipped with pump two on the pipeline between neutralization kettle and the hydroxylamine sulfate cauldron, the liquid in the neutralization kettle is through pump two pump back hydroxylamine sulfate cauldron.

And a precision filter is correspondingly arranged on a pipeline between the mother liquor collecting tank and the first pump.

Has the advantages that:

the utility model relates to a device is used mechanically to oxime amine mother liquor recovery cover adopts the mother liquor to apply mechanically the technique, uses in a large number to retrieve after the mother liquor is used mechanically, next batch reaction need not add the sodium sulfate basically, also can reduce hydroxylamine sulfate's quantity, has not only reduced resource consumption, increases the product yield, furthest reduction in production cost improves enterprise competitiveness, has reduced the waste water discharge moreover, has alleviateed the sewage treatment burden for the three wastes to reach the purpose of environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In fig. 1: 1. the system comprises a reaction kettle, 2 parts of a centrifuge, 3 parts of a solid material collecting tank, 4 parts of a mother solution collecting tank, 5 parts of a precision filter, 6 parts of a first pump, 7 parts of a mother solution metering tank, 8 parts of an alkali liquor metering tank, 9 parts of a neutralization kettle, 10 parts of a second pump, 11 parts of a hydroxylamine sulfate kettle, 12 parts of a trichloroacetaldehyde solution preparation kettle and 13 parts of an aniline hydrochloride reaction kettle.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments with reference to the accompanying drawings.

Example (b): see fig. 1.

The utility model discloses a device for recycling oxime amine mother liquor, which comprises a reaction kettle 1, wherein the upper part of the reaction kettle 1 is respectively communicated with an aniline hydrochloride reaction kettle 13, a trichloroacetaldehyde solution preparation kettle 12 and a hydroxylamine sulfate kettle 11 through respective pipelines, the lower part of the reaction kettle 1 is communicated with a centrifuge 2, the lower part of the centrifuge 2 is communicated with a solid material collecting tank 3 and a mother liquor collecting tank 4 through pipelines, a neutralization kettle 9 is arranged outside the mother liquor collecting tank 4, the upper part of the neutralization kettle 9 is respectively communicated with a mother liquor metering tank 7 and an alkali liquor metering tank 8 through respective pipelines, the mother liquor in the mother liquor collecting tank 4 is pumped into a mother liquor metering tank 7 through a pipeline and a pump I6, a pump II 10 is arranged on the pipeline between the neutralization kettle 9 and the hydroxylamine sulfate kettle 11, the liquid in the neutralization kettle 9 is pumped back to the hydroxylamine sulfate kettle 11 through the pump II 10, and the bottom of the hydroxylamine sulfate kettle 11 is connected with the reaction kettle 1 through a pipeline.

And a precision filter 5 is correspondingly arranged on a pipeline between the mother liquor collecting tank 4 and the first pump 6. In practical use, the precision filter can be used in wastewater purification devices such as resin filtration devices and reverse osmosis devices, and the specific structure and principle thereof are well known technology and are not described in detail herein.

The utility model discloses a concrete use does:

the product generated by the joint reaction of the aniline hydrochloride reaction kettle 13, the chloral solution preparation kettle 12 and the hydroxylamine sulfate kettle 11 is the oximido. Putting the reacted materials in a reaction kettle 1 into a centrifuge 2, separating the materials as dry as possible, allowing the mother liquor in the centrifuge 2 to flow into a mother liquor collecting tank 4 through a pipeline, sampling and analyzing the hydroxylamine sulfate content, putting the solid materials into a solid material collecting tank 3 through a discharge port, waiting for treatment, pumping the mother liquor in the mother liquor collecting tank 4 into a mother liquor metering tank 7 through a precision filter 5 and a pump 6 for weighing, putting the weighed mother liquor into a neutralization kettle 9, adjusting the pH value of the mother liquor to about 2 through a liquid caustic soda tank 8, pumping the mother liquor with the adjusted pH value into a hydroxylamine sulfate kettle 11 through a pump II 10, waiting for being put into the reaction kettle 1 to be directly used as the next batch of bottom water, so that the next batch of reaction basically does not need to add sodium sulfate, the use amount of the hydroxylamine sulfate can also be reduced, namely, the waste water discharge amount is reduced, the raw material consumption is reduced, the product yield is increased, the production cost is reduced to the maximum extent, the market competitiveness of enterprises is improved, the economic benefit is obvious, and the national requirements of energy conservation and emission reduction are met.

Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, and all such modifications and equivalent substitutions are intended to be encompassed by the scope of the following claims.

Claims

1. The utility model provides a device for oxime amine mother liquor is retrieved and is applied mechanically, includes reation kettle (1), its characterized in that: the upper part of the reaction kettle (1) is respectively communicated with an aniline hydrochloride reaction kettle (13), a chloral solution preparation kettle (12) and a hydroxylamine sulfate kettle (11) through respective pipelines, the lower part of the reaction kettle (1) is communicated with a centrifuge (2), the lower part of the centrifuge (2) is communicated with a solid material collecting tank (3) and a mother liquor collecting tank (4) through pipelines, a neutralization kettle (9) is arranged on the outer side of the mother liquor collecting tank (4), the upper part of the neutralization kettle (9) is respectively communicated with a mother liquor metering tank (7) and an alkali liquor metering tank (8) through respective pipelines, the mother liquor in the mother liquor collecting tank (4) is pumped into a mother liquor metering tank (7) through a pipeline and a first pump (6), and a second pump (10) is arranged on a pipeline between the neutralization kettle (9) and the hydroxylamine sulfate kettle (11), and the liquid in the neutralization kettle (9) is pumped back to the hydroxylamine sulfate kettle (11) through the second pump (10).

2. The device for recycling and mechanically applying the oxime amine mother liquor as claimed in claim 1, wherein: and a precision filter (5) is correspondingly arranged on a pipeline between the mother liquor collecting tank (4) and the first pump (6).