CN207981196U - A kind of device of ultrasonic wave added zinc system spent catalyst recovery - Google Patents
A kind of device of ultrasonic wave added zinc system spent catalyst recovery Download PDFInfo
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- CN207981196U CN207981196U CN201721882463.0U CN201721882463U CN207981196U CN 207981196 U CN207981196 U CN 207981196U CN 201721882463 U CN201721882463 U CN 201721882463U CN 207981196 U CN207981196 U CN 207981196U
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- zinc
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- leachate
- leaching
- ultrasonic wave
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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Abstract
The utility model discloses a kind of devices of ultrasonic wave added zinc system spent catalyst recovery, including pretreatment system, leaching system, exchange system, heavy Zn system, drying system and leachate regenerative system.Zinc resource successfully can be recycled from useless zinc catalyst using the device proposed in the utility model, realize the resource reutilization of waste, the rate of recovery of zinc is up to 95%, and product zinc sulphide purity is up to 98%, and product income is more than production cost, has practical application value.
Description
Technical field
The utility model belongs to municipal solid wastes disposal and recycling field, more particularly to a kind of zinc system dead catalyst returns
It receives and utilizes device.
Background technology
Zinc system catalyst is mainly used for low-temp low-pressure synthesizing methanol, synthesis ammonia, synthesizing vinyl acetate and substantially organic conjunction
At equal industry.With the development of petro chemical industry, the consumption of this kind of catalyst is increasing, and the short needs of service life are not
Disconnected update, thus the dead catalyst quantity for being set to change is also more and more.Although China's zinc resource rich content, at present
Domestic high-quality zinc ore has almost been exploited totally, and metallurgy industry has faced zinc resource situation in short supply.In contrast, give up zinc system
Catalyst, Zn content is generally 50% or more, and taste is often higher than low-grade zinc ore, and impurity content is few, ingredient is more simple
It is single, therefore dead catalyst containing zinc is the potential zinc resource of zinc abstraction industry, has higher recovery value, it has also become it is a kind of important
Secondary resource containing zinc.Meanwhile dead catalyst containing zinc is put into new edition《National Hazard waste register》In, belong in register
HW50 class dead catalyst, need to send to hazardous waste center and be carried out using disposition as hazardous waste, this also further promotes useless zinc to urge
The exploitation of agent recovery and utilization technology.
Spent catalyst is subjected to secondary resource recycling, can not only solve the problems, such as scarcity of resources, but also
Pollution pressure can be slowed down, be to kill two birds with one stone.
In view of the recycling benefit and problem of environmental pollution in removal process, current recycling industrial both at home and abroad is given up containing zinc urges
The technology of agent includes mainly hydrometallurgic recovery technology and Dry recovery technology, and wherein China mainly uses hydrometallurgic recovery technology.It passes
The useless zinc catalyst hydrometallurgic recovery technology of system mainly uses acidleach method, including hydrochloric acid, sulfuric acid, nitric acid etc..Although in the acid-hatching of young eggs
The leaching rate of zinc is high, but other most of metallic elements in dead catalyst can all enter in acid solution, this is subsequent
Metal separation, impurity removal increases difficulty, and a large amount of zinc powders, increase processing cost, while a large amount of acid can be consumed if using zinc displacement
It uses, heavy corrosion production equipment further increases production cost.
Invention content
For this purpose, the utility model proposes a kind of device of zinc system spent catalyst recovery, using alkaline leaching, remove at this time
The metal leaching that zinc, aluminium, lead etc. are dissolved in alkali is dissolved in solution, and other impurity largely will not be all leached, and is simplified follow-up
Purification run, greatly reduce production cost while obtaining high purity product.
A kind of device of ultrasonic wave added zinc system spent catalyst recovery, it is characterised in that：Including pretreatment system, leach
System, exchange system, heavy Zn system, product drying system and leachate regenerative system.
Pretreatment system, for carrying out high-temperature roasting pretreatment to dead catalyst, removal catalyst is inhaled during the reaction
Attached organic impurities；
Leaching system makes the zinc component in catalyst leach for handling zinc system dead catalyst；
Exchange system is used for the purification and impurity removal of leachate, foreign metal is displaced with active metallic zinc；
The recycling of zinc component in catalyst is realized in heavy Zn system, the preparation for vulcanizing zinc product；
Product drying system, for the dry vulcanization zinc product generated, convenient for storage, packaging；
Leachate regenerative system is added a certain amount of solid leaching agent in the leachate after heavy zinc, configures required proportioning
Leachate, realize recycling for leachate；
The pretreatment system, leaching system, exchange system and heavy Zn system are sequentially connected, and heavy Zn system solid product goes out
Mouth is connected to product drying system, and liquid outlet is connected to leachate regenerative system, and the return of leachate regenerative system is connected to leaching
Go out system.
Wherein, the pretreatment system, including it is sequentially connected calcining furnace, grinding device and screening plant；
Preferably, the screening plant is the vibrating screen that screen size is 0.1-0.3 mm.
Wherein, the leaching system includes：One section of Leach reaction kettle, two sections of Leach reaction kettles, one section of leaching filter device,
Two sections of leaching filter devices；One section of Leach reaction kettle, one section of filter device sludge outlet, two sections of Leach reaction kettles and two sections of filterings
Device is sequentially connected；
Wherein, one section of Leach reaction kettle and two sections of Leach reaction kettles all respectively include reaction kettle, agitating device, heating
Device and ultrasonic wave generator.
Wherein, the exchange system includes：Replacement reaction kettle, displacement agitating device, displacement heating device and displacement filtering
Device.One section of leaching filter device filtrate (liquid, replacement reaction kettle and displacement filter device are sequentially connected.
Wherein, the heavy Zn system includes：Heavy zinc reaction kettle, heavy zinc agitating device, heavy zinc heating device are filtered with heavy zinc
Device.Heavy zinc reaction kettle is connected with displacement filter device filtrate (liquid, and the zinc filter device filtrate (liquid that sinks is with leachate regeneration
System is connected, and heavy zinc filter device sludge outlet is connected with product drying system.
The beneficial effects of the utility model：
1. the utility model has the advantages that metal selective is high, only using alkaline leaching compared to traditional acid-hatching of young eggs
Part metals leach the ingredient simplified in leachate, contribute to subsequent dedoping step, reduce making for replacement process zinc powder
Dosage reduces production cost.
2. the leaching process in the utility model is leached using ultrasonic wave added, ultrasonic cavitation promotes object table to be leached
Layer rupture refines and increases heterogeneous reaction interface, accelerates leaching velocity；The grinding pretreatment for leaching procatalyst simultaneously, ensures
Catalyst has sufficiently large contact area, the synergistic effect of the two that zinc component is promoted efficiently to leach with leachate.
3. the leaching system in the utility model uses two sections of extract technologies, the rate of recovery of zinc is improved to the greatest extent.
4. the heavy zinc technology in heavy Zn system in the utility model is also leaching agent regenerative process, upper in heavy Zn system
Clear liquid is filled into leachate regenerative system through filter device, is matched according to required leachate, adds a certain amount of leaching agent, reuse
Into one section of leaching system, the recycling of leachate ensure that, reduce the usage amount of water and leaching agent, decrease simultaneously
The discharge capacity of waste water.
5. the utility model, using alkaline measure of intensified leaching, metal leaching rate is high and with selectivity, simple for process, stream
Journey is short, realizes that the recycling of waste, zinc recovery are up to 95%；The product zinc sulphide purity of acquisition is up to 98%, and product is received
Benefit is more than operating cost, has practical application value.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that the embodiment of the utility model is not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic device of ultrasonic wave added zinc system spent catalyst recovery in the utility model embodiment.
Specific implementation mode
Below in conjunction with the illustration in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
As described in Figure 1, the present embodiment provides a kind of device of ultrasonic wave added zinc system spent catalyst recovery, feature exists
In：Including pretreatment system, leaching system, exchange system, heavy Zn system, product drying system and leachate regenerative system.
Pretreatment system, for carrying out high-temperature roasting pretreatment to dead catalyst, removal catalyst is inhaled during the reaction
Attached organic impurities.
Leaching system makes the zinc component in catalyst leach for handling zinc system dead catalyst.
Exchange system is used for the purification and impurity removal of leachate, foreign metal is displaced with active metallic zinc.
The recycling of zinc component in catalyst is realized in heavy Zn system, the preparation for vulcanizing zinc product.
Product drying system, for the dry vulcanization zinc product generated, convenient for storage, packaging.
Leachate regenerative system is added a certain amount of solid leaching agent in the leachate after heavy zinc, configures required proportioning
Leachate, realize recycling for leachate.
Pretreatment system, leaching system, exchange system and heavy Zn system are sequentially connected, and the Zn system solid product that sinks, which exports, to be connected
It is connected to product drying system, liquid outlet is connected to leachate regenerative system, and the return of leachate regenerative system is connected to leaching system
System.
Pretreatment system includes sequentially connected calcining furnace, grinding device and screening plant.
Preferably, the screening plant is the vibrating screen that screen size is 0.1-0.3 mm.
Leaching system includes：One section of Leach reaction kettle, two sections of Leach reaction kettles, one section of leaching filter device, two sections of leachings
Filter device；One section of Leach reaction kettle, one section of filter device sludge outlet, two sections of Leach reaction kettles and two sections of filter devices are successively
Connection.
Wherein, one section of Leach reaction kettle and two sections of Leach reaction kettles all respectively include reaction kettle, agitating device, heating device
And ultrasonic wave generator.
Exchange system includes：Replacement reaction kettle, displacement agitating device, displacement heating device and displacement filter device；One section
Filter device filtrate (liquid, replacement reaction kettle and displacement filter device is leached to be sequentially connected.
Heavy Zn system includes：Heavy zinc reaction kettle, heavy zinc agitating device, heavy zinc heating device and heavy zinc filter device；Heavy zinc
Reaction kettle is connected with displacement filter device filtrate (liquid, and heavy zinc filter device filtrate (liquid is connected with leachate regenerative system, sinks
Zinc filter device sludge outlet is connected with product drying system.
Certain industrial synthetic process dead catalyst containing zinc, major metal component are as follows：
| Metallic element | Zn | Cu | Al | Mg | Fe | Ca |
| Content % | 51.17 | 3.00 | 2.62 | 1.60 | 1.28 | 1.13 |
Useless zinc catalyst initially enters calcining furnace and is calcined, and removes the organic impurities of absorption, is then ground sieve
Point（0.1mm）；The obtained catalyst fines of screening are sent into one section of Leach reaction kettle, coordinate under the conditions of agitating and heating ultrasound into
Row metal zinc leaches, and a leachate and residue are collected after filter device；To leach residue enter two sections of Leach reaction kettles after
It is continuous to leach, while a leachate is sent into replacement reaction kettle under the conditions of agitating and heating into line replacement；It replaces after reaction,
Displacement liquid is through being obtained by filtration pure zinc lixiviating solution, while secondary leachate is returned in one section of Leach reaction kettle and is continuing with；
Pure zinc lixiviating solution is sent into heavy zinc reaction kettle, filtrate and filter residue are obtained through filter device after reaction, filter residue is sent into dry system
Zinc sulphide finished product is obtained after system is dry, filtrate is sent into leachate regenerative system, returns to leaching system after regeneration.Pass through the dress
Set system, the rate of recovery of zinc has reached 95.4% in dead catalyst, and zinc sulphide product purity reaches 98%.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, made by any modification, equivalent replacement, improvement etc., this practicality should all be included in newly
Within the protection domain of type.
Claims (7)
1. a kind of device of ultrasonic wave added zinc system spent catalyst recovery, it is characterised in that：Including pretreatment system, leach system
System, exchange system, heavy Zn system, product drying system and leachate regenerative system；
Pretreatment system, for carrying out high-temperature roasting pretreatment to dead catalyst, removal catalyst adsorbs during the reaction
Organic impurities；
Leaching system makes the zinc component in catalyst leach for handling zinc system dead catalyst；
Exchange system is used for the purification and impurity removal of leachate, foreign metal is displaced with active metallic zinc；
The recycling of zinc component in catalyst is realized in heavy Zn system, the preparation for vulcanizing zinc product；
Product drying system, for the dry vulcanization zinc product generated, convenient for storage, packaging；
A certain amount of solid leaching agent is added in the leachate after heavy zinc in leachate regenerative system, configure needed for the leaching that matches
Go out liquid, realizes recycling for leachate；
The pretreatment system, leaching system, exchange system and heavy Zn system are sequentially connected, and the Zn system solid product that sinks, which exports, to be connected
It is connected to product drying system, liquid outlet is connected to leachate regenerative system, and the return of leachate regenerative system is connected to leaching system
System.
2. a kind of device of ultrasonic wave added zinc system according to claim 1 spent catalyst recovery, it is characterised in that：Institute
State pretreatment system, including sequentially connected calcining furnace, grinding device and screening plant.
3. a kind of device of ultrasonic wave added zinc system according to claim 2 spent catalyst recovery, it is characterised in that：Institute
It is the vibrating screen that screen size is 0.1-0.3 mm to state screening plant.
4. a kind of device of ultrasonic wave added zinc system according to claim 1 spent catalyst recovery, it is characterised in that：Institute
Stating leaching system includes：One section of Leach reaction kettle, two sections of Leach reaction kettles, one section of leaching filter device, two sections of leaching filtering dresses
It sets；One section of Leach reaction kettle, one section of filter device sludge outlet, two sections of Leach reaction kettles and two sections of filter devices are sequentially connected.
5. a kind of device of ultrasonic wave added zinc system according to claim 4 spent catalyst recovery, it is characterised in that：Institute
It states one section of Leach reaction kettle and two sections of Leach reaction kettles all respectively includes reaction kettle, agitating device, heating device and ultrasonic wave production
Generating apparatus.
6. a kind of device of ultrasonic wave added zinc system according to claim 1 spent catalyst recovery, it is characterised in that：Institute
Stating exchange system includes：Replacement reaction kettle, displacement agitating device, displacement heating device and displacement filter device；One section was leached
Filter device filtrate (liquid, replacement reaction kettle and displacement filter device are sequentially connected.
7. a kind of device of ultrasonic wave added zinc system according to claim 1 spent catalyst recovery, it is characterised in that：Institute
Stating heavy Zn system includes：Heavy zinc reaction kettle, heavy zinc agitating device, heavy zinc heating device and heavy zinc filter device；Heavy zinc reaction kettle
It is connected with displacement filter device filtrate (liquid, heavy zinc filter device filtrate (liquid is connected with leachate regenerative system, and the zinc that sinks filters
Device sludge outlet is connected with product drying system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721882463.0U CN207981196U (en) | 2017-12-28 | 2017-12-28 | A kind of device of ultrasonic wave added zinc system spent catalyst recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721882463.0U CN207981196U (en) | 2017-12-28 | 2017-12-28 | A kind of device of ultrasonic wave added zinc system spent catalyst recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207981196U true CN207981196U (en) | 2018-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721882463.0U Active CN207981196U (en) | 2017-12-28 | 2017-12-28 | A kind of device of ultrasonic wave added zinc system spent catalyst recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207981196U (en) |
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2017
- 2017-12-28 CN CN201721882463.0U patent/CN207981196U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: 100085 C404, Building 9 C, Shangdi Third Street, Haidian District, Beijing Co-patentee after: Ningxia Ningdong Qing great power Hua Kai Hong Environmental Resources Co., Ltd. Patentee after: Tsingdahua Environment Group Co., Ltd. Address before: 100085 C404, Building 9 C, Shangdi Third Street, Haidian District, Beijing Co-patentee before: Ningxia Ningdong Qing great power Hua Kai Hong Environmental Resources Co., Ltd. Patentee before: BEIJING GO HIGHER ENVIRONMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100085 C404, Building 9 C, Shangdi Third Street, Haidian District, Beijing Co-patentee after: Ningxia Ningdong Qingdaohua Environmental Resources Co., Ltd. Patentee after: Tsingdahua Environment Group Co., Ltd. Address before: 100085 C404, Building 9 C, Shangdi Third Street, Haidian District, Beijing Co-patentee before: Ningxia Ningdong Qing great power Hua Kai Hong Environmental Resources Co., Ltd. Patentee before: Tsingdahua Environment Group Co., Ltd. |