CN103570559B - The retrieving arrangement of 3,4-DCA waste residue - Google Patents
The retrieving arrangement of 3,4-DCA waste residue Download PDFInfo
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- CN103570559B CN103570559B CN201310558800.0A CN201310558800A CN103570559B CN 103570559 B CN103570559 B CN 103570559B CN 201310558800 A CN201310558800 A CN 201310558800A CN 103570559 B CN103570559 B CN 103570559B
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Abstract
The invention belongs to chemical production field, particularly a kind of retrieving arrangement of 3,4-DCA waste residue.The retrieving arrangement of this 3,4-DCA waste residue, comprises waste hold up tank and wastewater trough, it is characterized in that: also comprise dissolving tank, subsider, hydriding reactor, crude product groove and interface liquid level gauge; Described dissolving tank lower part outlet communicates with waste hold up tank, and side exit communicates with subsider; Described subsider upper outlet connects wastewater trough, and described hydriding reactor is communicated with subsider outlet at bottom through variable valve; Described hydriding reactor communicates with crude product groove; Described interface liquid level gauge bottom is stretched into bottom subsider.The present invention easily controls automatically, simple to operate, and the high efficiente callback achieving 3,4-DCA utilizes, and stops the pollution of waste residue to environment, also reduce production cost, and safety performance is high, is suitable for wide popularization and application.
Description
Technical field
The invention belongs to chemical production field, particularly a kind of retrieving arrangement of 3,4-DCA waste residue.
Background technology
Under normal temperature and pressure, 3,4-DCA is a kind of brown needle crystal, flammable, poisonous.3,4-DCA is water insoluble, is dissolved in most organic solvent, and its density is 1.401g/cm
3, be greater than the 1.000g/cm of water
3, after the mixture stratification of therefore 3,4-DCA and water, lower floor is 3,4-DCA, and upper strata is water.Meanwhile, the fusing point of 3,4-DCA is lower, is only 72 DEG C, and boiling point is 272 DEG C, or a kind of high boiling material.3,4-DCA is a kind of strong methemoglobin producting agent, has infringement, can cause headache to central nervous system, liver, kidney, dizzy, feels sick, vomiting, finger tip, lip, auricle cyanosis, expiratory dyspnea etc.And directly discharge can cause very large pollution to environment.
Along with the rapid expansion of domestic aniline, oil of mirbane production capacity, its output leaps to the first in the world, and the waste residue amount produced also increases substantially.According to statistics, current China Aniline Production produces waste residue per year more than 10,000 tons, and oil of mirbane is produced waste residue per year and reached 30,000 tons, expects and also will be multiplied from now on.In the face of the generation of flood tide waste residue like this, there is very large hidden danger in environmental pollution.Waste residue is recycled and is inherently walked standardization, road is reclaimed in mass-producing.
Along with country is to the attention of environmental protection, process for cleanly preparing progressively replaces the production technique fallen behind.Hydrogenating reduction method produces chloro, methyl chloride belongs to environmental protection technique for phenyl amines product, is applied both at home and abroad.But chloro aminobenzen series products needs adding portion auxiliary agent and alkali for controlling dechlorination problem in hydrogenation process, inherently produces a certain amount of waste residue.Phenyl amines product at high temperature easily decomposes generation poisonous gas in addition, the danger can blasted time serious.Because of the existence of other composition in rectifying, can containing a small amount of product in the waste residue of generation, directly discharge not only can be polluted environment, also causes the waste of resource simultaneously.
Summary of the invention
The present invention in order to make up the defect of prior art, provide a kind of can the retrieving arrangement of 3.4-dichlorphenamide bulk powder waste residue of efficient recovery 3.4-dichlorphenamide bulk powder.
The present invention is achieved through the following technical solutions:
A retrieving arrangement for 3,4-DCA waste residue, comprises waste hold up tank and wastewater trough, it is characterized in that: also comprise dissolving tank, subsider, hydriding reactor, crude product groove and interface liquid level gauge; Described dissolving tank lower part outlet communicates with waste hold up tank, and side exit communicates with subsider; Described subsider upper outlet connects wastewater trough, and described hydriding reactor is communicated with subsider outlet at bottom through variable valve; Described hydriding reactor communicates with crude product groove; Described interface liquid level gauge bottom is stretched into bottom subsider.
Be provided with a point water visor in the middle part of described subsider, top is provided with a point water funnel.
Described interface liquid level gauge top is connected by robot control system(RCS) with variable valve.
The invention has the beneficial effects as follows: the present invention easily controls automatically, simple to operate, the high efficiente callback achieving 3,4-DCA utilizes, and stops the pollution of waste residue to environment, also reduce production cost, and safety performance is high, is suitable for wide popularization and application.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1 dissolving tank, 2 waste hold up tanks, 3 subsiders, 4 points of water visors, 5 interface liquid level gauges, 6 points of water funnels, 7 variable valve, 8 hydriding reactors, 9 robot control system(RCS)s, 10 wastewater troughs, 11 crude product grooves.
Embodiment
A retrieving arrangement for 3,4-DCA waste residue, comprises waste hold up tank 2 and wastewater trough 10, it is characterized in that: also comprise dissolving tank 1, subsider 3, hydriding reactor 8, crude product groove 11 and interface liquid level gauge 5; Described dissolving tank 1 lower part outlet communicates with waste hold up tank 2, and side exit communicates with subsider 3; Described subsider 3 upper outlet connects wastewater trough 10, and described hydriding reactor 8 is communicated with subsider 3 outlet at bottom through variable valve 7; Described hydriding reactor 8 communicates with crude product groove 11; Described interface liquid level gauge 5 bottom is stretched into bottom subsider 3; Be provided with a point water visor 4 in the middle part of described subsider 3, top is provided with point water funnel 6; Described interface liquid level gauge 5 top is connected by robot control system(RCS) 9 with variable valve 7.
First in dissolving tank 1 with hot water dissolving's 3,4-DCA waste residue of 80 ~ 100 DEG C, adjustment solution acid alkalinity makes PH=7, dissolves the salt in waste residue, will not carry out precipitating, being separated and being transferred to waste hold up tank 2 by fusant.Then material negative pressure be transferred in subsider 3 and carry out layering, according to 3,4-DCA and the immiscible characteristic of water, along with the rising of liquid level, material and the continuous layering of water, water is on upper strata, and material is in lower floor.When separation surface reaches subsider 3 total height 1/2, continue on-line monitoring by a point water visor 4; When liquid level reaches subsider 3 total height 3/4, enter part water funnel 6 in subsider 1, retain material further, water byproduct passes through subsider 3 top continuous overflow in wastewater trough 10.Material after separation monitors material liquid level by interface liquid level gauge 5, regulates and controls variable valve 7, make lower floor's material enter into hydriding reactor 8 by the robot control system(RCS) 9 be connected; In hydriding reactor 8, make molten state high boiling material all be converted into 3,4-DCA by hydrogenation, product introduction crude product groove 11 internal recycle utilizes, thus reaches the object of waste residue recycling.
Claims (1)
1. a retrieving arrangement for 3,4-DCA waste residue, comprises waste hold up tank (2) and wastewater trough (10), it is characterized in that: also comprise dissolving tank (1), subsider (3), hydriding reactor (8), crude product groove (11) and interface liquid level gauge (5); Described dissolving tank (1) lower part outlet communicates with waste hold up tank (2), and side exit communicates with subsider (3); Described subsider (3) upper outlet connects wastewater trough (10), and described hydriding reactor (8) is communicated with subsider (3) outlet at bottom through variable valve (7); Described hydriding reactor (8) communicates with crude product groove (11); Subsider (3) bottom is stretched in described interface liquid level gauge (5) bottom, and interface liquid level gauge (5) top is connected by robot control system(RCS) (9) with variable valve (7), and described subsider (3) middle part is provided with a point water visor (4), and top is provided with a point water funnel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558800.0A CN103570559B (en) | 2013-11-12 | 2013-11-12 | The retrieving arrangement of 3,4-DCA waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558800.0A CN103570559B (en) | 2013-11-12 | 2013-11-12 | The retrieving arrangement of 3,4-DCA waste residue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103570559A CN103570559A (en) | 2014-02-12 |
| CN103570559B true CN103570559B (en) | 2015-10-28 |
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| CN201310558800.0A Active CN103570559B (en) | 2013-11-12 | 2013-11-12 | The retrieving arrangement of 3,4-DCA waste residue |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202717600U (en) * | 2012-06-28 | 2013-02-06 | 山东尚舜化工有限公司 | Continuous device for waste water treatment and acetone recovery in research and development (RD) production of rubber antioxidant |
| CN202808653U (en) * | 2012-05-25 | 2013-03-20 | 山东沾化天九化工有限公司 | Device for solvent-free production of 3,4-dichloroaniline |
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2013
- 2013-11-12 CN CN201310558800.0A patent/CN103570559B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202808653U (en) * | 2012-05-25 | 2013-03-20 | 山东沾化天九化工有限公司 | Device for solvent-free production of 3,4-dichloroaniline |
| CN202717600U (en) * | 2012-06-28 | 2013-02-06 | 山东尚舜化工有限公司 | Continuous device for waste water treatment and acetone recovery in research and development (RD) production of rubber antioxidant |
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| CN103570559A (en) | 2014-02-12 |
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Effective date of registration: 20201125 Address after: No. 169, Jieyong Road, Lunan high tech chemical industry park, Mushi Town, Tengzhou City, Zaozhuang City, Shandong Province Patentee after: Shandong zhennuo Chemical Co., Ltd Address before: 256800 Chengbei Industrial Zone, Zhanhua County, Shandong, Binzhou Patentee before: SHANDONG ZHANHUA TIANJIU CHEMICAL Co.,Ltd. |