CN112374644A - Palladium-containing wastewater adsorption recovery system - Google Patents

Palladium-containing wastewater adsorption recovery system Download PDF

Info

Publication number
CN112374644A
CN112374644A CN202011224195.XA CN202011224195A CN112374644A CN 112374644 A CN112374644 A CN 112374644A CN 202011224195 A CN202011224195 A CN 202011224195A CN 112374644 A CN112374644 A CN 112374644A
Authority
CN
China
Prior art keywords
palladium
equipment
containing wastewater
recovery system
adsorption recovery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011224195.XA
Other languages
Chinese (zh)
Inventor
黄文涛
李再强
梁民
汪前程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Qixin Environmental Protection Technology Co ltd
Original Assignee
Shenzhen Qixin Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Qixin Environmental Protection Technology Co ltd filed Critical Shenzhen Qixin Environmental Protection Technology Co ltd
Priority to CN202011224195.XA priority Critical patent/CN112374644A/en
Publication of CN112374644A publication Critical patent/CN112374644A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G55/00—Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
    • C01G55/002—Compounds containing, besides ruthenium, rhodium, palladium, osmium, iridium, or platinum, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • C22B11/042—Recovery of noble metals from waste materials
    • C22B11/046—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a palladium-containing wastewater adsorption recovery system which comprises a water storage tank, centrifugal equipment, a reaction kettle, filtering equipment and a control cabinet, wherein the outside of the reaction kettle is respectively communicated with oxidant adding equipment, PH adjusting equipment and reaction liquid adding equipment, PH measuring instruments and liquid level meters are respectively arranged inside the water storage tank and the reaction kettle, the outside of the filtering equipment is communicated with flushing equipment, the water storage tank, the centrifugal equipment, the reaction kettle and the filtering equipment are sequentially communicated through pipelines, control valves are respectively arranged at joints, a liquid inlet of the water storage tank is communicated with a palladium-containing wastewater source, and a liquid outlet of the same water storage tank can be communicated with a plurality of centrifugal equipment. The palladium-containing wastewater adsorption recovery system can recover palladium in palladium-containing wastewater, and solves the problem that palladium is wasted due to the fact that the palladium is directly discharged into a wastewater station in the current industry.

Description

Palladium-containing wastewater adsorption recovery system
Technical Field
The invention relates to the technical field of palladium metal recovery, in particular to a palladium-containing wastewater adsorption recovery system.
Background
Palladium is one of the most rare noble metals in the world, the element symbol Pd is one of platinum group elements, the palladium gold has extremely high purity, the appearance is similar to the platinum gold, the palladium gold is silvery white metallic luster in a natural state and can not fade forever, the palladium gold is high-temperature resistant, corrosion resistant, wear resistant and ductile, and the palladium gold also serves as a catalyst, and has the shadow from petrochemical industry to preventive medical treatment, and from automobiles to wristwatches. At present, palladium-containing wastewater mainly exists in working procedures of palladium plating, nickel-palladium-gold, palladium activation, palladium cylinder nitrate tank cleaning and the like in circuit board or electroplating enterprise production, the concentration of palladium ions is generally 10-100 PPM, wherein the nickel-palladium-gold, palladium activation working procedure and the like consume a large amount of noble metal palladium every year, the consumption reasons are mainly the regular tank replacement of a palladium tank and the cleaning working procedure after palladium deposition of a plated part, and the palladium-containing wastewater is directly discharged into a wastewater station in the industry at present, so that the waste of the noble metal palladium is caused.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a palladium-containing wastewater adsorption recovery system which can recover palladium in palladium-containing wastewater and solves the problem that palladium is wasted due to the fact that the palladium is directly discharged into a wastewater station in the industry at present.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a contain palladium waste water and adsorb recovery system, includes retaining jar, centrifugal equipment, reation kettle, filtration equipment and switch board, reation kettle's outside intercommunication has oxidant to add equipment, PH adjusting device, reaction liquid to add equipment respectively, retaining jar and reation kettle's inside all is provided with PH measuring apparatu and level gauge, filtration equipment's outside intercommunication has flushing device.
Preferably, the water storage tank, the centrifugal equipment, the reaction kettle and the filtering equipment are sequentially communicated through pipelines, and control valves are arranged at the joints.
Preferably, the liquid inlet of the water storage tank is communicated with the palladium-containing wastewater source, and the liquid outlet of the same water storage tank can be communicated with a plurality of centrifugal devices.
Preferably, the centrifugal equipment, the reaction kettle and the filtering equipment are matched and used in the same quantity.
Preferably, the PH measuring instrument and the liquid level meter are all online measuring instruments and are electrically connected with the control cabinet.
Preferably, an oxidant is arranged in the oxidant adding equipment, and the oxidant is HNO3Or Cl2Or H2O2One kind of (1).
Preferably, the PH adjusting means includes an acidic neutralizing solution and an alkaline neutralizing solution.
Preferably, 10% of NH is respectively arranged in the reaction liquid adding device and the flushing device4And (4) Cl solution.
Preferably, the control cabinet comprises a control unit and an early warning unit inside.
(III) advantageous effects
The invention provides a palladium-containing wastewater adsorption recovery system. Has the following beneficial effects:
this contain palladium waste water absorption recovery system, realize containing the separation of solid-liquid in the palladium waste water through centrifugal device, obtain pure liquid waste water, then utilize reation kettle cooperation oxidant interpolation equipment, PH regulation equipment, reaction liquid interpolation equipment, realize carrying out PH regulation, oxidation reaction, precipitation reaction to the waste water in proper order, then utilize filtration equipment to carry out precipitate separation, wash in cooperation flushing equipment, obtain pure palladium salt promptly, reach palladium metal adsorption recovery in the palladium waste water, then further purification, calcination, hydrogen reduction obtains pure sponge palladium, accomplish the recovery of noble metal palladium, avoid causing the waste of this kind of rare noble metal of palladium, and this system still sets pH value, liquid level height on-line monitoring control unit, can realize the super liquid early warning and guarantee the reaction precision, improve recovery efficiency.
Drawings
Fig. 1 is a schematic block diagram of the structure of the present invention.
In the figure: 1 water storage tank, 2 centrifugal equipment, 3 reaction kettle, 4 filtering equipment, 5 control cabinet, 6 oxidant adding equipment, 7PH adjusting equipment, 8 reaction liquid adding equipment, 9 flushing equipment and 10 pipelines.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a contain palladium waste water and adsorb recovery system, including retaining jar 1, centrifugal device 2, reation kettle 3, filtration equipment 4 and switch board 5, reation kettle 3's outside intercommunication has the oxidant respectively to add equipment 6, PH adjusting device 7, the reaction liquid adds equipment 8, realize the oxidant, the PH value is adjusted, the reaction liquid adds, retaining jar 1 and reation kettle 3's inside all is provided with PH measuring apparatu and level gauge, realize PH detection and level detection, filtration equipment 4's outside intercommunication has washing unit 9, the realization is deposited palladium and is washd, guarantee the purity.
The water storage tank 1, the centrifugal equipment 2, the reaction kettle 3 and the filtering equipment 4 are sequentially communicated through a pipeline 10, and control valves are arranged at the joints, so that the internal circulation of wastewater is realized, and the on-off control of the pipeline is facilitated.
The liquid inlet of the water storage tank 1 is communicated with the palladium-containing wastewater source, and the liquid outlet of the same water storage tank 1 can be communicated with a plurality of centrifugal devices 2, so that the circuit recovery is realized, and the recovery efficiency is ensured.
The centrifugal equipment 2, the reaction kettle 3 and the filtering equipment 4 are matched and used in the same number.
PH measuring apparatu and level gauge are online measuring apparatu, and with switch board 5 electric connection, realize system real time monitoring, guarantee equipment normal operating.
The oxidant adding equipment 6 is provided with an oxidant which is HNO3Or Cl2Or H2O2To Pd (IV), where Cl is used2As is most convenient.
The pH adjusting device 7 comprises an acidic neutralizing solution and an alkaline neutralizing solution, and meets the requirement of pH adjustment.
The reaction liquid adding device 8 and the flushing device 9 are respectively internally provided with 10 percent of NH4And the Cl solution meets the reaction requirement of absorbing and recovering palladium.
The inside of switch board 5 includes the control unit and early warning unit, realizes inside signal control and super liquid early warning.
When in use, the water storage tank 1 is used for collecting and storing the wastewater containing palladium, the PH value and the height in the water storage tank are monitored by a PH measuring instrument and a liquid level meter in the water storage tank 1, then the wastewater containing palladium flows into the centrifugal device 2, the reaction kettle 3 and the filtering device 4 in sequence through the pipeline 10, when the wastewater enters the centrifugal device 2, the centrifugal device 2 is used for carrying out solid-liquid separation on the wastewater to obtain pure liquid wastewater rich in bubbles, when the wastewater enters the reaction kettle 3, the PH value and the height in the reaction kettle are monitored by the PH measuring instrument and the liquid level meter in the reaction kettle 3, the PH adjusting device 7, the oxidant adding device 6 and the reaction liquid adding device 8 are sequentially controlled by the control cabinet 5 to firstly adjust the PH value of the wastewater, the PH value is 7-8, then the oxidant is used for oxidizing Pd (II) into Pd (IV), wherein the oxidant is chlorine (the chlorine is introduced for 5min at room temperature), then, 10% NH was added by means of a reaction liquid addition device 84Cl solution, the reaction equation is: h2PdC14+2NH4C1+C12→(NH4)2PdC14↓ +2HC1, until pd deposits completely, then enter the filtration equipment 4 to filter, cooperate with flushing equipment to wash the precipitate while filtering, can get pure palladium salt, reach the absorption recovery of palladium;
if further purification is required, the palladium salt can be dissolved by boiling with pure water (NH4)2PdC16+H20→(NH4)2PdC14+ HC1+ HC10, observing the color to change from red solid to black red liquid, cooling, repeating the above steps to obtain pure ammonium chloropalladate, calcining and chlorine reducing to obtain pure sponge palladium.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a palladium-containing waste water adsorbs recovery system, includes retaining jar (1), centrifugal equipment (2), reation kettle (3), filtration equipment (4) and switch board (5), its characterized in that: the outside of reation kettle (3) communicates respectively has oxidant to add equipment (6), PH adjusting device (7), reaction liquid to add equipment (8), the inside of retaining jar (1) and reation kettle (3) all is provided with PH measuring apparatu and level gauge, the outside intercommunication of filtration equipment (4) has flushing device (9).
2. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: the water storage tank (1), the centrifugal equipment (2), the reaction kettle (3) and the filtering equipment (4) are sequentially communicated through a pipeline (10), and control valves are arranged at the joints.
3. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: the liquid inlet of the water storage tank (1) is communicated with the palladium-containing wastewater source, and the liquid outlet of the same water storage tank (1) can be communicated with a plurality of centrifugal devices (2).
4. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: the centrifugal equipment (2), the reaction kettle (3) and the filtering equipment (4) are matched and used in the same number.
5. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: the PH measuring instrument and the liquid level meter are both online measuring instruments and are electrically connected with the control cabinet (5).
6. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: an oxidant is arranged in the oxidant adding equipment (6), and the oxidant is HNO3Or Cl2Or H2O2One kind of (1).
7. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: the pH adjusting device (7) comprises an acidic neutralizing solution and an alkaline neutralizing solution.
8. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: 10% of NH is respectively arranged in the reaction liquid adding device (8) and the flushing device (9)4And (4) Cl solution.
9. The palladium-containing wastewater adsorption recovery system according to claim 1, wherein: the control cabinet (5) comprises a control unit and an early warning unit.
CN202011224195.XA 2020-11-05 2020-11-05 Palladium-containing wastewater adsorption recovery system Withdrawn CN112374644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011224195.XA CN112374644A (en) 2020-11-05 2020-11-05 Palladium-containing wastewater adsorption recovery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011224195.XA CN112374644A (en) 2020-11-05 2020-11-05 Palladium-containing wastewater adsorption recovery system

Publications (1)

Publication Number Publication Date
CN112374644A true CN112374644A (en) 2021-02-19

Family

ID=74579114

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011224195.XA Withdrawn CN112374644A (en) 2020-11-05 2020-11-05 Palladium-containing wastewater adsorption recovery system

Country Status (1)

Country Link
CN (1) CN112374644A (en)

Similar Documents

Publication Publication Date Title
CN102676837A (en) Method for recycling palladium from silver electrolyte by using dimethylglyoxime
CN109161895A (en) Acid copper chloride etching liquid copper reclaiming system and reclaiming method
CN102161548A (en) Method for recycling and treating electroplating wastewater and equipment thereof
CN104775036B (en) The method that noble metal is reclaimed from the waste and old Ni―Ti anode with noble coatings
CN109023433A (en) A kind of thick electrorefining of silver technique
CN113526621B (en) Method and device for treating nitrate-containing waste liquid
CN105385851A (en) Treatment method of acid pickling waste liquid
CN106830489A (en) System for processing chrome-containing wastewater
CN103993346A (en) Impurity removing and regenerating method for electronickelling solution
CN102336481A (en) Process for reclaiming copper and nickel from electroplating rinse waste water and implementing zero discharge of waste water
CN106186185B (en) Method for preparing high-purity nickel salt by recycling industrial nickel-containing wastewater
CN113772787B (en) Electrochemical filter for removing total nitrogen in water
CN103539283A (en) Comprehensive treatment method for removing Sb and Bi impurities in Cu electrolyte
CN103922519A (en) Process for recycling cyaniding gold plating liquid carried by board surface in PCB (Printed Circuit Board) industry
JP3753987B2 (en) Reduced water generator
CN112374644A (en) Palladium-containing wastewater adsorption recovery system
CN104163529A (en) Treatment process of zinc-nickel alloy electroplating wastewater
Weber et al. Electro-catalytic reduction of aqueous nitrates using Cu-Sn and Cu-Pd cathodes
CN201172698Y (en) Device for preventing metal ion impurity polluting sulfuric acid type trivalent chromium plating liquid
CN101713025B (en) Method for wet separation of mixed solution containing nickel and zinc
CN111807573B (en) Treatment device and method for thallium-containing wastewater
CN110204016B (en) System and method for pickling ammonia-containing wastewater electrolysis device
CN205892820U (en) System for ammonia nitrogen in electrolytic oxidation method processing ammonia nature copper chloride waste water
CN202499779U (en) Nickel-containing washing water treatment equipment
CN111547917A (en) Method for treating waste water recovered from spent catalyst noble metal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20210219

WW01 Invention patent application withdrawn after publication