CN113862480A - Industrial extractant, treatment method and treatment system for paste tank - Google Patents
Industrial extractant, treatment method and treatment system for paste tank Download PDFInfo
- Publication number
- CN113862480A CN113862480A CN202111151920.XA CN202111151920A CN113862480A CN 113862480 A CN113862480 A CN 113862480A CN 202111151920 A CN202111151920 A CN 202111151920A CN 113862480 A CN113862480 A CN 113862480A
- Authority
- CN
- China
- Prior art keywords
- module
- metal
- extractant
- washing
- tank
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 229910052751 metal Inorganic materials 0.000 claims abstract description 85
- 239000002184 metal Substances 0.000 claims abstract description 85
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000002699 waste material Substances 0.000 claims abstract description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 23
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 claims abstract description 20
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 19
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 9
- 229920000570 polyether Polymers 0.000 claims abstract description 9
- 239000013530 defoamer Substances 0.000 claims abstract description 8
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 7
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 7
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 55
- 238000005406 washing Methods 0.000 claims description 43
- 239000004033 plastic Substances 0.000 claims description 39
- 229920003023 plastic Polymers 0.000 claims description 39
- 239000002244 precipitate Substances 0.000 claims description 39
- 239000003599 detergent Substances 0.000 claims description 38
- 239000003513 alkali Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 32
- 238000000926 separation method Methods 0.000 claims description 30
- 239000012634 fragment Substances 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 24
- 238000007667 floating Methods 0.000 claims description 21
- 239000000047 product Substances 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 19
- 230000018044 dehydration Effects 0.000 claims description 13
- 238000006297 dehydration reaction Methods 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 230000001376 precipitating effect Effects 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 6
- 239000002920 hazardous waste Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009270 solid waste treatment Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 34
- 239000012459 cleaning agent Substances 0.000 description 21
- 239000000126 substance Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001917 fluorescence detection Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000647 material safety data sheet Toxicity 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 241000510097 Megalonaias nervosa Species 0.000 description 1
- 241001085205 Prenanthella exigua Species 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000003113 alkalizing effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/008—Wet processes by an alkaline or ammoniacal leaching
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0446—Leaching processes with an ammoniacal liquor or with a hydroxide of an alkali or alkaline-earth metal
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
- C22B3/1608—Leaching with acyclic or carbocyclic agents
- C22B3/1658—Leaching with acyclic or carbocyclic agents of different types in admixture, e.g. with organic acids added to oximes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
-
- 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
Abstract
The invention discloses an industrial extractant, a treatment method and a treatment system for a paste tank, and mainly relates to the technical field of waste treatment and solid waste treatment. The extractant comprises the following components in percentage by weight: 5-10% of sodium hydroxide, 2-5% of triethanolamine, 1-3% of glycerol polyether defoamer GP3301, 3-5% of sodium dodecyl benzene sulfonate, 5% of diethylene glycol butyl ether, 5% of propylene glycol ethyl ether and the balance of water. The invention has the beneficial effects that: the method can thoroughly clean the waste packaging container paste tank, and obtain the metal nickel with high purity, thereby improving the economic benefit.
Description
Technical Field
The invention relates to the technical field of hazardous waste packaging container treatment, in particular to an industrial extracting agent for a paste tank, a treatment method and a treatment system.
Background
The Paste tank residue is soldering Paste which is mainly a Paste body with certain viscosity and good thixotropy formed by uniformly mixing metal powder and soldering flux. Black residue in a large paste tank recycled by a company is a mixture of metallic nickel and organic matters, and the content of the metallic nickel is about 56 percent. At present, a paste tank treated in a green spreading crushing workshop is crushed together with other plastic barrels, residues on the surface of plastic are cleaned by alkali liquor to obtain a plastic product, the residues in the alkali liquor exist in a grease shape, a cleaning agent of a crushing line is polluted, the quality of other plastic products is reduced, and therefore the sale price of the plastic is reduced. Meanwhile, in order to increase the cleaning effect of the alkali liquor cleaning agent, washing powder is added in production, so that the cleaning agent is difficult to treat. The pasteur tank residue is mixed with other residues resulting in a very low nickel content, which is transferred to qualified enterprises for disposal as an invaluable sludge. The metal can not be recycled, which causes economic loss to the company and waste of resources.
Disclosure of Invention
The invention aims to provide an industrial extracting agent, a treatment method and a treatment system for a past tank, which can thoroughly clean dangerous waste packaging containers of the past tank, obtain metal nickel with high purity and improve economic benefits.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an industrial extractant for a paste tank comprises the following components in percentage by weight: 5-10% of sodium hydroxide, 2-5% of triethanolamine, 1-3% of glycerol polyether defoamer GP3301, 3-5% of sodium dodecyl benzene sulfonate, 5% of diethylene glycol butyl ether, 5% of propylene glycol ethyl ether and the balance of water.
Preferably, the components comprise the following components in percentage by weight: 10% of sodium hydroxide, 2% of triethanolamine, 2% of glycerol polyether defoamer GP 3301%, 3% of sodium dodecyl benzene sulfonate, 5% of diethylene glycol butyl ether, 5% of propylene glycol ethyl ether and the balance of water.
A method of treating a paste can by removing residue from spent packaging containers using an extractant according to claim 1 or 2.
Further, collecting the extractant after the waste packaging container is treated, standing for layering, collecting the metal precipitate at the bottom, treating the metal precipitate by using the extractant again, and then washing and drying to obtain the metal nickel.
Further, the method comprises the following process flows:
1) the feeding barrel is used for collecting hazardous waste packaging containers of the paste tank;
2) shredding, namely shredding the collected hazardous waste packaging container into pieces with the width of 2cm and the length of 25 cm;
the shredding link is matched with an alkali liquor detergent for spraying, and the sprayed detergent waste liquid flows back to the circulating water tank a;
3) pre-washing, namely pre-washing and soaking the shredded sheets by using an extractant, and refluxing pre-washed extractant waste liquid into a circulating water tank b;
4) crushing, namely crushing and shearing the pre-washed sheet into plastic fragments with the particle size of less than 2 cm;
5) performing strong friction, performing strong friction on the plastic fragments under the action of washing of a detergent to obtain clean plastic fragments, and feeding the separated detergent waste liquid into a circulating water tank a;
6) carrying out sink-float separation, conveying the cleaned plastic fragments subjected to friction into a sink-float separation water tank for sink-float separation, and refluxing impurity-containing washing liquid in the water tank into a circulating water tank a;
7) performing high-speed dehydration, and performing centrifugal dehydration on the plastic fragments subjected to sinking and floating separation to obtain the processed plastic fragments;
8) waste liquid recovery
Standing and precipitating the waste liquid in the circulating water tank a by using a storage tank a, recycling the alkali liquor on the upper layer, and recovering the metal precipitate on the lower layer;
standing and precipitating the waste liquid in the circulating water tank b by using a storage tank b, recycling the extractant on the upper layer, and recovering the metal precipitate on the lower layer;
and soaking and washing the recovered metal precipitate by using the extractant again, washing the metal precipitate for a plurality of times by using clear water, and drying to obtain a finished product of the metal nickel.
The washing liquid is alkali liquor with the concentration of 5% -10%.
A processing system of past jar includes that material connection from the front after to in proper order: the device comprises a feeding module, a shredding module, a prewashing module, a crushing module, a friction module, a separation module and a dehydration module; the device also comprises a conveying module used for conveying materials of the adjacent process modules and a metal recovery module;
the pre-washing module uses an extractant to wash, and the washed extractant waste liquid is subjected to metal recovery through a metal recovery module to recover metal precipitate;
the shredding module, the friction module and the separation module are matched with an alkali liquor detergent for spraying and washing, and the washed detergent waste liquid is subjected to metal recovery through the metal recovery module to recover metal precipitates;
and after the metal recovery module is stood in the waste liquid to obtain metal precipitates, soaking the metal precipitates by using an extracting agent, washing the metal precipitates for a plurality of times by using clean water, and drying the metal precipitates to obtain the metal nickel.
Compared with the prior art, the invention has the beneficial effects that:
semi-aqueous cleaners differ from organic solvent cleaners in that they incorporate water and a surfactant, also known as emulsion cleaners or microemulsion cleaners, into the organic solvent. The cleaning mechanism comprises the combination mechanism of a water-based cleaning agent of a surfactant and a solvent cleaning agent. The advantages of strong cleaning power of the original solvent type cleaning agent on oil stains and good wetting and penetration on a substrate are maintained, the removal capability of water-based dirt is improved, and compared with an organic solvent cleaning agent, the cleaning capability in the aspect of inorganic dirt is expanded. Due to the addition of water, the flash point of the cleaning agent is improved, the volatility is reduced, the safety of the original solvent is improved, and the application range is wider.
The process independently crushes the paste tank, the fragments are further cleaned by the semi-water-based extractant, the problem that the paste tank pollutes the cleaning agent of a crushing line is solved, the sale price of plastics is improved,
the extractant can separate organic matters from metal nickel in the collected metal residues, purify the oil-containing metal to obtain the metal nickel powder with the purity of about 95 percent, realize the purpose of resource utilization and improve the economic benefit of a company.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
FIG. 2 is a photograph showing the effect of example 4 of the present invention before the use of an extractant to flush a paste can.
FIG. 3 is a photograph showing the effect of the extractant on the rinsing of the paste tank in example 4 of the present invention.
FIG. 4 is a photograph of a sample of metallic nickel obtained in example 4 of the present invention.
FIG. 5 shows the results of quantitative determination of metallic nickel in example 4 of the present invention.
FIG. 6 shows the results of fluorescence measurements on metallic nickel after washing with a lye detergent in example 5 of the present invention.
FIG. 7 shows the results of secondary extraction of metallic nickel by the detergent of example 5 of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.
Example 1: industrial extractant for paste tank
Belongs to an aqueous solution extracting agent, and comprises the following components in percentage by weight: 10% of sodium hydroxide, 2% of triethanolamine, 2% of glycerol polyether defoamer GP 3301%, 3% of sodium dodecyl benzene sulfonate, 5% of diethylene glycol butyl ether, 5% of propylene glycol ethyl ether and the balance of water.
The industrial cleaning agent has the following requirements:
(1) the dirt cleaning speed is high, and the dirt is dissolved thoroughly. The cleaning agent has strong reaction, dispersion or dissolution cleaning capability on dirt.
(2) The cleaning agent has no toxicity or low toxicity to organisms and the environment, and the generated waste gas, waste liquid and waste residue can be treated to meet the requirements of relevant national regulations.
(3) The damage to the cleaning object should be within the production-allowable limit, and there is a corresponding measure for inhibiting the corrosion that the metal may cause.
(4) The cleaning agent is cheap and easily available, and is in favor of localization; the cleaning cost is low.
(5) Insoluble substances are not left on the surface of a cleaning object in the cleaning process, new stains are not generated, rustiness is avoided, and the quality of products is not influenced.
(6) The cleaning agent is required to be phosphorus-free and environment-friendly as far as possible, and the COD value is reduced.
(7) No foam and peculiar smell affecting the cleaning process and the on-site sanitation are generated.
(8) The cleaning conditions are mild, and the cleaning method does not depend on additional strengthening conditions as much as possible, such as excessive requirements on temperature, pressure, mechanical energy and the like.
(9) The cleaning agent cannot be flammable, explosive, or pose some potential safety threat to the product or equipment that needs to be cleaned.
According to the principle, the cleaning agent is safe and environment-friendly in production due to high boiling point and high flash point, and is an organic solvent dissolved in water and used as an organic solvent of a semi-water-based cleaning agent. Propylene glycol ethyl ether, boiling point 132.2 ℃, flash point 43 ℃, is miscible with water. Diethylene glycol monobutyl ether, boiling point 230.4 ℃, closed flash point 78 ℃, open flash point 93 ℃, is soluble in water and is a good solvent for semi-aqueous based cleaning agents.
The chemical stability of the surfactant to acid, alkali and oxidizing agent is also decisive for its selection, and from the viewpoint of acid and alkali resistance, the anionic sodium dodecylbenzenesulfonate, which is inexpensive, meets the requirements of the surfactant, but because of its strong foam-forming ability, it is generally used only to a very limited extent.
The chelating adjuvant triethanolamine dispersant can improve the cleaning and stain removal effect by many times, and the builder also can help the dispersing and emulsifying action and can remove pigment dirt and deposits.
Polyether molecules in the polyether defoaming agent are in a meander shape at low temperature and are dissolved by forming hydrogen bonds with water molecules. When the temperature is increased, the thermal movement of molecules is intensified, hydrogen bonds are destroyed, and the solubility is reduced. When the temperature is higher than the cloud point, the water-based defoaming agent precipitates from water as oil droplets, and is excellent in performance. Glycerol polyether defoamer GP330 was selected as defoamer.
Example 2: method for processing past tank
According to the method, a paste tank is treated by a single crushing line, residues on the surface of a waste packaging container are removed by a physical and chemical method, the waste packaging container is firstly crushed into small pieces by high extrusion force and shearing force generated inside a shredder, the residues on the surface of the fragments are washed away by an alkali liquor spraying device, then the residues attached to the fragments are diluted by an extracting agent in the embodiment 1 in a pre-washing tank, the residues on the surface of the materials are peeled off again by the high rotating speed of the shredder and a strong friction machine and the temperature generated by rubbing and rubbing of a washboard, and finally the crushed plastic fragments and impurities are separated and cleaned by two-stage sinking-floating separation and high-speed dehydration, so that the surface cleanliness of the plastic fragments of the resource products is ensured.
The cleaning liquid contains metal nickel in the soldering paste residues, the cleaning liquid is centrifugally separated to obtain precipitated metal residues, and after the metal residues are collected, the cleaning liquid is continuously used for cleaning, deoiling and drying, and then the metal residues can be sold as metal nickel products.
The specific process flow is as follows:
in the preorder preparation part, waste packaging containers are collected, inspected, transported, unloaded, sorted and residual liquid is collected: the processes of collecting, transporting, unloading, sorting and collecting residual liquid of the waste plastic barrel in the waste plastic barrel crushing and cleaning treatment line.
1) Feeding barrel
The empty barrel after removing the mark does not fall to the ground, is directly pushed into a material pit below a feeding port by staff, and is uniformly sent into a four-shaft shredder by a conveying belt. The collecting ditch is arranged on the ground below the feeding conveyor, the length of the collecting ditch is the projection length of the feeding conveyor on the ground, a small amount of residual liquid which is possibly leaked in the feeding process is collected, recovered into the residual storage barrel, sent to the temporary storage room of the dangerous waste and temporarily stored, and delivered to a unit with dangerous waste disposal qualification for treatment.
2) Shredding
The four-shaft shredder is used for tearing and occluding materials by utilizing high extrusion force and shearing force generated by relative rotation of four high-strength wear-resistant alloy grinding rollers, and crushing and decomposing a plastic packaging barrel into sheet materials with the width of about 2cm and the length of about 25 cm.
The upper part of the shredder is provided with an alkali liquor cleaning solution spraying device, and the waste packaging container is cleaned by the sprayed alkali detergent (5-10%) while being crushed so as to wash away residues on the waste packaging container sheets. The washing liquid flows back to a washing circulating water tank a of the waste plastic barrel crushing and washing line.
Most of residual substances on the surface of the waste barrel can be removed while the packaging barrel is effectively decomposed through physical shredding and cleaning liquid spraying in the process.
3) Pre-washing
The crushed packaging barrel sheet materials are conveyed into a pre-washing tank by a conveyor, a floating material cleaning and propelling roller is arranged at the upper end of the washing tank, and a chain plate conveying belt is arranged in the middle of the washing tank to prevent heavier materials from sinking.
The extractant of example 1 is added into the prewashing pool, and the plastic sheet is soaked by the extractant, so that the metal remained on the surface is cleaned. The process can not only clean the residual metal, but also increase the cleanliness of the plastic and improve the quality of the plastic product.
The washed detergent liquid flows back to the circulating water tank b.
4) Crushing
The pre-washed sheet material is conveyed into a crusher through a screw conveyer, and the crusher further shears large plastic sheet material into plastic fragments with the particle size of less than 2cm by utilizing a high-speed rotating blade.
5) High friction
And (3) enabling the crushed plastic fragments to enter a strong friction machine, peeling residual substances on the surface of the material again by using the high rotating speed, rubbing by a rubbing plate and the temperature generated by rubbing, removing the residual substances on the surface of the crushed plastic material, and finally forming the plastic fragments with clean surfaces.
Separating with alkaline detergent and strong friction machine, and introducing the separated residue into cleaning circulation water tank a together with spray water.
6) Separation of floating and sinking
And conveying the rubbed clean plastic fragments into a sinking-floating separation water tank, wherein a sinking material cleaning screw is arranged at the bottom of the sinking-floating separation water tank, a floating material cleaning propulsion roller is arranged above the sinking-floating separation water tank, an alkaline detergent is matched with the sinking-floating separation water tank to separate and clean the broken plastic fragments and impurities, and the impurities enter a cleaning circulating water tank a along with alkaline washing liquor.
7) High speed dewatering
The plastic fragments separated by sinking and floating enter a high-speed dehydrator, and the working principle of the high-speed dehydrator is that water on the surfaces of the plastic fragments is removed by utilizing centrifugal force in the high-speed rotating process. And packaging the dehydrated plastic fragments as finished products for sale.
In order to improve the cleanliness of the product, a two-stage sinking-floating separation and high-speed dehydration process is arranged in the links of sinking-floating separation and high-speed dehydration so as to ensure the surface cleanliness of the resource product plastic fragments.
The detergent used in the above process is alkali liquor stored in the water tank, the concentration range is 5% -10%, the concentration of the alkali liquor in the water tank is periodically detected, and once the concentration is found to be higher than 10% or lower than 5%, supplementary fresh water or alkali liquor is added into the water tank according to the concentration change condition.
8) Cyclic multiplexing
The circulating water tank a and the circulating water tank b are chemical engineering tanks with the capacity of 3 tons, and can be reused by a water pump in a continuous circulating mode when in use, and after the circulating water tank a is used for a certain time, the circulating water tank a and the circulating water tank b uniformly enter the corresponding storage tanks to extract metals.
The method comprises the following steps:
after flowing into a circulating water tank a, temporarily storing in the tank, continuously pumping the alkaline detergent remained in the circulating water tank a by using a water pump, repeatedly using in the processes of shredding, strong friction and floating-sinking separation, and uniformly transferring into a storage tank a after using for about one week;
the extractant used in the pre-washing process flows into a circulating water tank b and is temporarily stored in the tank, the extractant left in the circulating water tank b is continuously pumped by a water pump to be reused in the pre-washing process, and the extractant is uniformly transferred to a storage tank b after being used for about one week;
a closed centrifuge can be used for precipitating and deslagging in the process of reusing by using the water pump.
9) Waste liquid recovery
The following treatment is carried out on the recovered liquid in the whole process system:
9.1) metallic Nickel Collection
The recovery liquid collected in the circulating water tank a is from a detergent recovery liquid sprayed by a matching shredder, a strong friction machine detergent recovery liquid and a detergent recovery liquid of a sinking-floating separation water tank; and after the recycling liquid is repeatedly recycled for one week, collecting the recycling liquid collected in the circulating water tank a into a storage tank a, standing, and precipitating metal on the lower layer and an alkaline detergent on the upper layer.
And collecting the recovery liquid collected in the circulating water tank b into a storage tank b after repeated circulation for one week, standing, and precipitating the metal on the lower layer and the extractant on the upper layer.
And collecting the metal precipitate in the lower layer in the storage tank a and the storage tank b.
The upper-layer alkali liquor detergent returns to the water tank for recycling after being discharged by the centrifugal machine.
9.2) purification of metallic Nickel
Washing the obtained metal precipitate with extractant, standing to obtain three layers, separating metal precipitate in the lower layer, floating oil in the upper layer, and extracting agent in the middle layer. Rinsing the metal precipitate with clear water, standing, collecting the precipitate, drying to obtain a metal nickel product, wherein the nickel content is about 95% by fluorescence detection in a laboratory, and directly selling the product.
Because the metal precipitate contains oily substances, the semi-water-based extractant in the embodiment 1 can well remove organic substances in the metal slag, and the metal slag is purified by using the cleaning agent again, so that the metal precipitate can be purified.
After the treatment of the paste tank by the process, the problem that the paste tank enters a plastic crushing line to pollute a cleaning agent is solved, the quality of a plastic product is improved from oxidized white to bright white, the appearance and color of the product are obviously improved, the appearance and quality of the product are greatly improved, and the sale price of each ton is improved by about 400 yuan.
In addition, the metal nickel powder with the content of 95% is obtained by recovering and purifying metals and is directly sold as a product, about 16 tons of metal nickel powder can be provided in one year, and the sale profit is about 201 ten thousand yuan.
Example 3: processing system of past jar
Including according to the conveying order of solid material from the front to back material connection in proper order: the device comprises a feeding module, a shredding module, a prewashing module, a crushing module, a friction module, a separation module and a dehydration module.
A feeding module,
comprises a feeding port and a material pit; the feeding port is arranged above the material pit and used for directly pushing the empty barrel without falling to the ground after the label is removed into the feeding port and then sending the empty barrel into the material pit below;
the shredding module is used for shredding the paper to be shredded,
the washing machine comprises a four-axis shredder, wherein an alkali liquor cleaning and spraying device is arranged above the four-axis shredder, and the spraying device is used for spraying 5% -15% of alkali liquor washing agent.
The pre-washing module is used for pre-washing,
including the prewashing pond, the prewashing pond top is equipped with the flotation pontoon and washs the propulsion cylinder, the supporting link joint conveyer belt that has in the prewashing pond, be equipped with prewashing liquid feeding pipe and prewashing back flow on the prewashing pond, prewashing liquid feeding pipe is used for pouring into the extractant of embodiment 1. The prewashing return pipe is used for recovering the extracting agent after prewashing.
The crushing module is used for crushing the crushed materials,
comprises a crusher; for obtaining plastic chips with a particle size of less than 2 cm.
The friction module is used for friction between the friction block and the bearing,
comprises a powerful rubbing machine; the strong friction machine is matched with a friction machine liquid feeding pipe and a friction machine return pipe, and the friction machine liquid feeding pipe is used for injecting an alkali liquor detergent during strong friction. The friction machine return pipe is used for recovering the detergent after friction treatment;
a separation module;
the device comprises a sinking-floating separation water tank, wherein a sinking material cleaning screw is arranged at the bottom of the sinking-floating separation water tank, a floating material cleaning and propelling roller is arranged above the sinking-floating separation water tank, a water tank liquid feeding pipe and a water tank return pipe are arranged on the sinking-floating separation water tank, the water tank liquid feeding pipe is used for injecting alkaline detergent into the sinking-floating separation water tank, and the water tank return pipe is used for recovering used detergent.
A dehydration module, a dehydration module and a dehydration module,
comprises a high-speed dehydrator.
The device also comprises a conveying module, an alkali liquor module, an extracting solution module and a metal recovery module;
a conveying module, a conveying module and a control module,
the automatic type selection device comprises a conveyor arranged between every two adjacent process modules, wherein the conveyor can be a belt conveyor, a connecting plate conveyor, a spiral conveyor and other common equipment, and type selection is carried out according to the condition of materials. The material conveying device is used for conveying the waste barrel materials between the adjacent process modules and conveying the materials processed by the previous process module into the next process module for processing.
Wherein, the subaerial collection ditch that sets up of conveyer between module and the shredding module of throwing material, the length of collecting the ditch is the projection length on ground of feeding conveyer for collect a small amount of raffinate that probably drips and leaks in the feeding process.
An alkali liquor module, a water tank,
comprises a water tank, a circulating water pool a, a storage tank a and a centrifuge;
the water tank is used for storing alkali liquor detergent, the concentration range of the alkali liquor is 5% -10%, the concentration of the alkali liquor in the water tank is regularly detected, and once the concentration is higher than 10% or lower than 5%, supplementary fresh water or alkali liquor is added into the water tank according to the concentration change condition.
The circulating water tank a is used for collecting used waste liquid of the detergent, and comprises waste liquid of the detergent sprayed by a collecting shredder; and is connected with a friction machine return pipe and a water tank return pipe and used for collecting detergent waste liquid with strong friction and separating the detergent waste liquid in the water tank.
And the circulating water tank a is in material communication with the storage tank a through a pipeline and is used for storing, standing and layering the waste liquid collected in the circulating water tank a.
And the layered upper-layer alkali liquor in the storage tank a flows back to the water tank through a water pump, and further slag discharge treatment is carried out through a centrifugal machine during backflow.
And a return pipe for pumping and returning to the shredding module, the friction module and the separation module is further connected in the circulating water tank a, and a water pump is arranged on the return pipe.
The supply and recovery of the detergent used in the system are realized through the alkali liquor module, the closed loop is realized, the emission is reduced, the reuse rate is improved, and the loss and the cost are reduced.
An extracting solution module, a filtering module and a filtering module,
comprises a preparation tank, a circulating water pool b and a storage tank b;
the preparation tank is used for configuring and storing the extractant, and is connected with the prewashing liquid feeding pipe through a pipeline to supply the extractant in the prewashing link;
and the circulating water tank b is connected with the prewashing return pipe and is used for collecting the extractant waste liquid after prewashing.
And the storage tank b is communicated with the circulating water tank b through a pipeline, the extractant waste liquid collected in the circulating water tank b is subjected to standing and layering, and the detergent layer on the upper layer is recycled through a water pump.
A metal recovery module for recovering a metal from a metal tank,
comprises an extraction tank, a clean water tank and drying equipment;
the extraction pool is used for collecting the metal precipitates at the bottoms of the storage tanks a and b, is connected with the preparation tank on the basis of a pipeline, and is used for soaking and standing the metal precipitates by injecting an extracting agent into the preparation tank;
the clean water tank is used for repeatedly washing the extracted metal precipitate by using clean water;
the drying equipment is used for drying the washed metal precipitate.
The module can purify the metallic nickel to ensure that the purity of the metallic nickel is 95 percent and the metallic nickel can be directly sold as a product.
Example 4: verification test for metal extraction recovery with respect to the extractant of example 1
As the extractant used in comparative example 1, a composition based on the industrial extractant of example 1;
the extractant composition of reagents 1-5 of the comparative examples was designed as follows.
The following experimental procedures were carried out in design:
the components of the cleaning agent are prepared according to the following table by weight percent, 1L of prepared extractant is poured into a paste tank containing black paste, and black residues stained on the inner wall and the bottom of the paste tank are cleaned by rubbing with a brush. (see fig. 2 and fig. 3 for details of comparison before and after cleaning.) the residue was dissolved well, and the residue was poured into a separatory funnel, and metallic nickel was precipitated in the lower layer, and the upper layer was an extractant. After dilution with water, the upper layer is an organic oil, the middle layer is an aqueous solution, and the lower layer is a precipitate. Filtering, separating, drying at 100 deg.C for 2 hr, and weighing.
By taking the verification example 1 as an example, the extraction rate of heavy metal in a paste tank is calculated. The weight of the washed metal weighed 999g before washing in a Paste jar, the weight of the washed metal weighed 899g after washing, and the weight of the separated metal dried 61 g. The content of metallic nickel was measured by fluorescence at 94.8%, and the weight of nickel was extracted at 57.8 g. According to the content of metals in a paste tank MSDS (MSDS), 100g of residues are cleaned, and the content of metals is 58 g. Therefore, the extraction rate of the metallic nickel is 99.6 percent. Sample picture element fig. 4.
The procedure was carried out using the specific method of the waste liquid recovery procedure in example 2, and the composition and test results of each comparative example were as follows:
example 5: washing and post-treatment testing of the paste tank with lye detergent
And repeatedly cleaning the paste tank containing the black paste by using 10% alkali liquor, collecting the used alkali liquor detergent containing residues after cleaning, and detecting the metal nickel. The residue in the alkali liquor after cleaning is grease-like and has low content of heavy metal nickel, and the content of nickel in the alkali liquor after cleaning is about 65.9 percent through fluorescence detection. (see FIG. 5 for results)
The extractant in example 1 is used, the method of the extraction process of the metallic nickel in example 2 is used, the collected alkali liquor containing the residues is re-extracted, after the extractant is added, the oily matter is dissolved, the precipitate is kept still, the lower precipitate is filtered, the precipitate is washed by water, the precipitate is dried at 110 ℃, and the content of nickel is detected by fluorescence about 95.8%. (results are shown in FIG. 6)
Claims (7)
1. An industrial extractant for a paste tank is characterized by comprising the following components in percentage by weight: 5-10% of sodium hydroxide, 2-5% of triethanolamine, 1-3% of glycerol polyether defoamer GP3301, 3-5% of sodium dodecyl benzene sulfonate, 5% of diethylene glycol butyl ether, 5% of propylene glycol ethyl ether and the balance of water.
2. The industrial extractant for paste tank according to claim 1, characterized in that the components thereof comprise, in weight percent: 10% of sodium hydroxide, 2% of triethanolamine, 2% of glycerol polyether defoamer GP 3301%, 3% of sodium dodecyl benzene sulfonate, 5% of diethylene glycol butyl ether, 5% of propylene glycol ethyl ether and the balance of water.
3. A method of disposal of a paste can, characterized in that the extractant according to claim 1 or 2 is used to remove residues from spent packaging containers.
4. The method for treating a paste tank as claimed in claim 3, wherein the extractant obtained after the treatment of the waste packaging container is collected, is kept standing for layering, is used for collecting the metal precipitate at the bottom, is used for treating the metal precipitate again by using the extractant as claimed in claim 1 or 2, and is washed and dried to obtain the metal nickel.
5. The method for treating a paste tank according to claim 3, characterized by comprising the following process flows:
1) the feeding barrel is used for collecting hazardous waste packaging containers of the paste tank;
2) shredding, namely shredding the collected hazardous waste packaging container into pieces with the width of 2cm and the length of 25 cm;
the shredding link is matched with an alkali liquor detergent for spraying, and the sprayed detergent waste liquid flows back to the circulating water tank a;
3) pre-washing, namely pre-washing and soaking the shredded sheets by using an extractant, and refluxing pre-washed extractant waste liquid into a circulating water tank b;
4) crushing, namely crushing and shearing the pre-washed sheet into plastic fragments with the particle size of less than 2 cm;
5) performing strong friction, performing strong friction on the plastic fragments under the action of washing of a detergent to obtain clean plastic fragments, and feeding the separated detergent waste liquid into a circulating water tank a;
6) carrying out sink-float separation, conveying the cleaned plastic fragments subjected to friction into a sink-float separation water tank for sink-float separation, and refluxing impurity-containing washing liquid in the water tank into a circulating water tank a;
7) performing high-speed dehydration, and performing centrifugal dehydration on the plastic fragments subjected to sinking and floating separation to obtain the processed plastic fragments;
8) waste liquid recovery
Standing and precipitating the waste liquid in the circulating water tank a by using a storage tank a, recycling the alkali liquor on the upper layer, and recovering the metal precipitate on the lower layer;
standing and precipitating the waste liquid in the circulating water tank b by using a storage tank b, recycling the extractant on the upper layer, and recovering the metal precipitate on the lower layer;
and soaking and washing the recovered metal precipitate by using the extractant again, washing the metal precipitate for a plurality of times by using clear water, and drying to obtain a finished product of the metal nickel.
6. The method for treating a paste tank as claimed in claim 3, wherein the washing solution is a lye solution with a concentration of 5% -10%.
7. The utility model provides a processing system of past jar which characterized in that includes that the material is connected from the front to back in proper order: the device comprises a feeding module, a shredding module, a prewashing module, a crushing module, a friction module, a separation module and a dehydration module; the device also comprises a conveying module used for conveying materials of the adjacent process modules and a metal recovery module;
the pre-washing module uses the extractant as claimed in claim 1 or 2 for washing, and the washed extractant waste liquid is used for recovering metal precipitates through the metal recovery module;
the shredding module, the friction module and the separation module are matched with an alkali liquor detergent for spraying and washing, and the washed detergent waste liquid is subjected to metal recovery through the metal recovery module to recover metal precipitates;
after the metal recovery module is stood in waste liquid to obtain metal precipitate, the metal precipitate is soaked by using the extracting agent as claimed in claim 1 or 2, washed for a plurality of times by using clean water, and dried to obtain the metal nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151920.XA CN113862480A (en) | 2021-09-29 | 2021-09-29 | Industrial extractant, treatment method and treatment system for paste tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151920.XA CN113862480A (en) | 2021-09-29 | 2021-09-29 | Industrial extractant, treatment method and treatment system for paste tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113862480A true CN113862480A (en) | 2021-12-31 |
Family
ID=78992774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111151920.XA Pending CN113862480A (en) | 2021-09-29 | 2021-09-29 | Industrial extractant, treatment method and treatment system for paste tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113862480A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008121952A1 (en) * | 2007-03-31 | 2008-10-09 | Advanced Technology Materials, Inc. | Methods for stripping material for wafer reclamation |
| CN101368141A (en) * | 2007-08-15 | 2009-02-18 | 江苏海迅实业集团股份有限公司 | Electronic instrument panel surface detergent |
| US20100112728A1 (en) * | 2007-03-31 | 2010-05-06 | Advanced Technology Materials, Inc. | Methods for stripping material for wafer reclamation |
| US20100317559A1 (en) * | 2009-06-15 | 2010-12-16 | Robert J. Ryther | High alkaline cleaners, cleaning systems and methods of use for cleaning zero trans fat soils |
| US20160289613A1 (en) * | 2013-12-18 | 2016-10-06 | Henkel Ag & Co. Kgaa | Preservative system for washing agents |
| CN106833993A (en) * | 2016-12-27 | 2017-06-13 | 东莞市先飞电子材料有限公司 | A kind of aqueous cleaning agent and preparation method thereof |
| CN110628289A (en) * | 2019-09-26 | 2019-12-31 | 万华化学集团股份有限公司 | Water-based woodware stain-resistant white finish and preparation method thereof |
| CN113292881A (en) * | 2021-06-18 | 2021-08-24 | 江苏冠军科技集团股份有限公司 | Non-combustible safe solvent and application thereof |
| CN113403148A (en) * | 2021-06-30 | 2021-09-17 | 恩彻尔(天津)环保科技有限公司 | Paste tank cleaning agent, preparation method and cleaning method |
-
2021
- 2021-09-29 CN CN202111151920.XA patent/CN113862480A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008121952A1 (en) * | 2007-03-31 | 2008-10-09 | Advanced Technology Materials, Inc. | Methods for stripping material for wafer reclamation |
| US20100112728A1 (en) * | 2007-03-31 | 2010-05-06 | Advanced Technology Materials, Inc. | Methods for stripping material for wafer reclamation |
| CN101368141A (en) * | 2007-08-15 | 2009-02-18 | 江苏海迅实业集团股份有限公司 | Electronic instrument panel surface detergent |
| US20100317559A1 (en) * | 2009-06-15 | 2010-12-16 | Robert J. Ryther | High alkaline cleaners, cleaning systems and methods of use for cleaning zero trans fat soils |
| US20160289613A1 (en) * | 2013-12-18 | 2016-10-06 | Henkel Ag & Co. Kgaa | Preservative system for washing agents |
| CN106833993A (en) * | 2016-12-27 | 2017-06-13 | 东莞市先飞电子材料有限公司 | A kind of aqueous cleaning agent and preparation method thereof |
| CN110628289A (en) * | 2019-09-26 | 2019-12-31 | 万华化学集团股份有限公司 | Water-based woodware stain-resistant white finish and preparation method thereof |
| CN113292881A (en) * | 2021-06-18 | 2021-08-24 | 江苏冠军科技集团股份有限公司 | Non-combustible safe solvent and application thereof |
| CN113403148A (en) * | 2021-06-30 | 2021-09-17 | 恩彻尔(天津)环保科技有限公司 | Paste tank cleaning agent, preparation method and cleaning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103923770B (en) | Plastics adhesive layer cleaning agent, plastic cleaning technique and cleaning equipment | |
| CN103159387B (en) | Portable oilfield oil sludge purifying treatment and recovery device and method | |
| CN108724529A (en) | A kind of disposition recovery method of spent ink bucket | |
| CN103121774A (en) | Multi-stage recycling device and method for waste water in semi-coke production | |
| CN111151530A (en) | Cleaning method for oil storage tank | |
| CN113862480A (en) | Industrial extractant, treatment method and treatment system for paste tank | |
| JP2010089006A (en) | Apparatus for treating waste toner cartridge | |
| CN203625209U (en) | Tank bottom oily sludge treatment system | |
| CN111003921B (en) | Demulsifier for oil-containing sludge, treatment system and method | |
| CN106830590B (en) | Dirty oil sludge treatment facility | |
| CN106809899B (en) | Air floatation oil removal system and oil removal method for hot rolling advection pool | |
| CN215918597U (en) | Resourceful combined treatment device for alkaline waste stripping liquid and waste paint bucket | |
| CN106191890A (en) | Strip cleaning liquid recycling plant and strip cleaning liquid circulation process method | |
| CN1278758C (en) | Recovery treatment system and method for oil field waste filtered substance | |
| CN105713753A (en) | Hydrocarbon cleaning agent for cleaning and separating water-soluble cutting fluid | |
| CN107265799B (en) | Comprehensive treatment process and device for oily solid waste | |
| CN107287424A (en) | A kind of method of the physical separation aluminum metal from metal mixture | |
| CN210552371U (en) | Waste plastic treatment and recovery system | |
| CN106517712A (en) | Oil-containing grinding sludge resourceful treatment device and method | |
| KR20120013484A (en) | Waste oil and oil sludge treatment apparatus and method thereof | |
| CN206858415U (en) | Solid-state ground sludge processing unit | |
| KR20130001208A (en) | Method and apparatus for de-oiling magnetic solid waste | |
| CN218925592U (en) | Zero release danger waste packaging barrel washs line | |
| US20050087040A1 (en) | Method for recycling metals from swarf | |
| JP2012204242A (en) | Cell processing apparatus |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |