CN103131042A - Aluminum-plastic separating agent and aluminum-plastic separating method - Google Patents
Aluminum-plastic separating agent and aluminum-plastic separating method Download PDFInfo
- Publication number
- CN103131042A CN103131042A CN2013100720934A CN201310072093A CN103131042A CN 103131042 A CN103131042 A CN 103131042A CN 2013100720934 A CN2013100720934 A CN 2013100720934A CN 201310072093 A CN201310072093 A CN 201310072093A CN 103131042 A CN103131042 A CN 103131042A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- plastic
- separating agent
- formic acid
- ethanol
- 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
Classifications
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to an aluminum-plastic separating agent which is prepared by mixing formic acid and ethanol in a volume ratio of 4:1-1:4. The separating method for an aluminum-plastic composite film by using the separating agent comprises the following steps: mixing the aluminum-plastic separating agent and water to obtain a separating solution, and soaking a cleaned aluminum-plastic composite film in the separating solution; and taking out, cleaning, centrifuging and drying. When the aluminum-plastic separation film is soaked in the solution mixed from the separating agent and water, aluminum and plastic in the aluminum-plastic composite film can be efficiently separated, and the environmental corrosivity and pollution and the use cost are greatly lowered; and thus, the invention is applicable to industrial production for recovering aluminum-plastic composite films.
Description
Technical field
The invention belongs to the aluminium plastic material separation technology field, particularly a kind of separating agent that separates with plastics for the aluminium to the waste aluminium plastic composite membrane, also relate to simultaneously and use this separating agent to the separation method of aluminum-plastic composite membrane.
Background technology
Aluminum-plastic composite membrane has good barrier property, is difficult for breaking, and good looking appearance, bright in luster, sanitation and hygiene, easy to use, the advantage such as crease resistance is good has been widely used in the packaging field of instrument, medicine, chemical and daily necessities.But along with the extensive application of aluminum-plastic composite membrane, produced simultaneously a large amount of nondegradable wastes, if deal with improperly, not only lost a large amount of aluminium and plastics resource, and environment has been brought immense pressure.
For solving the contradiction between waste pollution and shortage of resources, a lot of countries have all proposed Mode of Circular.Along with developing rapidly of China's economy, the also surprising growth of the quantity of package waste material, wherein just comprise a large amount of plastic-aluminum combined mould materials, day by day deficient in resource and environmental consciousness strengthens gradually today, if aluminium and plastics in can effective recycling waste aluminium plastic composite membrane, not only can effectively alleviate the pollution to environment, can also bring considerable economic benefit and social benefit.
Domestic separation method to aluminium plastic composite packaging material mainly contains two kinds at present: mechanical phonograph recorder separation and fractionation.Wherein mechanical phonograph recorder separation adopts plasma technology as Brazil and Spain, produce high temperature by electrolysis rare gas element (argon), thereby make aluminium and plastics vaporization obtain highly purified aluminium ingot and paraffin, at present this technique comparative maturity, need approximately 4,000,000 Euros but introduce this complete equipment, invest huge.Fractionation refers to adopt the solvent soaking aluminium plastic composite material, destroy the bonding force between plastic-aluminum, and then a kind of method that aluminium is separated with plastics, this method cost is lower, the rate of recovery is higher, is aluminium plastic composite material is carried out the important development direction that Separation and Recovery is utilized.
expensive and low separation efficiency often is not used mechanical phonograph recorder separation due to it, in fractionation, normally used separate substance is acid or alkali, wherein in the majority with nitric acid and sodium hydroxide, although but both aggressivenesies are good, but it is serious or equipment is caused damage to tend to environmental pollution, and aluminium can dissolve morely in sepn process, and the rate of recovery is reduced, some people proposes to utilize organic solvent can make the plastics swelling in addition, with an organic solvent aluminum-plastic composite membrane is separated, but find through overtesting, disengaging time is very long and the rate of recovery is lower, may be relevant with the preparation method of aluminum-plastic composite membrane, because existing aluminum-plastic composite membrane mainly contains two kinds of forming methods, plastics by the hot pressing melting after with aluminium bonding or by powerful organic binder bond bonding, the simple organic solvent that relies on is difficult to plastic-aluminum combined membrane sepn the swelling property of plastics, and organic solvent is all toxic usually, the large grade of volatility all damages environment and operator.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of plastic-aluminum separating agent and plastic-aluminum separating method, adopting this separating agent to mix the solution that forms with water closely soaks the aluminum-plastic separation film, aluminium in aluminum-plastic composite membrane not only can be separated efficiently with plastics, and environment corrosiveness and contaminative and use cost are all reduced greatly, thereby be applicable to suitability for industrialized production that aluminum-plastic composite membrane is reclaimed.
A kind of plastic-aluminum separating agent of the present invention, its component comprises formic acid and ethanol, wherein formic acid and ethanol mix with volume ratio 4:1～1:4.
In described plastic-aluminum separating agent, the preferred volume ratio of formic acid and ethanol is 1:1;
In described plastic-aluminum separating agent, also comprise anion surfactant, 0.01～0.25g:100ml of the mass volume ratio of this anion surfactant and mixed solution, mixed solution be formic acid and ethanol by volume 4:1～1:4 mix;
Described anion surfactant is Sodium dodecylbenzene sulfonate, Witco 1298 Soft Acid, sodium lauryl sulphate or sodium laurylsulfonate.
A kind of plastic-aluminum separating method of the present invention comprises:
(1) clean: aluminum-plastic composite membrane is cleaned, remove the dust impurity of surface adsorption;
(2) dosing: with above-mentioned plastic-aluminum separating agent and water mixed configuration parting liquid or directly with above-mentioned plastic-aluminum separating agent as parting liquid, keep the parting liquid temperature the scope of 40～100 ℃;
(3) soak: the aluminum-plastic composite membrane after cleaning drops in above-mentioned parting liquid and soaks, and soak time is 0.5～4h;
(4) go out groove and cleaning: the aluminum-plastic composite membrane after soaking is pulled out, removes the remaining separating agent in aluminum-plastic separation film surface with clear water;
(5) pulverize also centrifugation: step (4) gained aluminum-plastic separation film after pulverization process, is put into whizzer and carried out centrifugation;
(6) cleaning-drying: the aluminium after centrifugal and plastics are further cleaned with clear water respectively, then carry out drying and get final product.
Plastic-aluminum separating agent in described step (2) and the volume ratio of water be 1:0～1:9(when the volume ratio of plastic-aluminum separating agent and water be 1:0, namely in this step directly with plastic-aluminum separating agent as parting liquid);
Preferred temperature in described step (2) is 50～80 ℃;
Centrifugation in described step (5), rotating speed are 50～1200 rev/mins, disengaging time 1～5min.。
Plastics in aluminum-plastic separation film in the market have polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) etc., especially in the majority with polyethylene and polyethylene terephthalate, composite polyvinyl alcohol (PVA) or ethylene/vinyl alcohol copolymer (EVOH) are to improve the barrier property of composite membrane sometimes.Studies show that, utilize this separating agent to plastic-aluminum combined membrane sepn, good separating effect to be arranged, analyze theoretically this separating agent and have following characteristics:
1) ethanol in separating agent of the present invention can comparatively fast penetrate into polymkeric substance inside as small molecules, can make simultaneously polymkeric substance produce to a certain degree swelling, when cohesive force between polymkeric substance and aluminium is weakened, formic acid be penetrated between aluminium and plastics quickly;
2) in separating agent, formic acid itself used contains a small amount of moisture, the water-soluble one-tenth of formic acid is acid, the formic acid that penetrates plastics can be with a small amount of aluminium sesquioxide dissolving of aluminum surface layer, due to the acidity of formic acid relatively a little less than, therefore, relative inorganic acid or highly basic, formic acid effectively can continue to dissolve pure aluminum after dissolving aluminium sesquioxide layer hardly under lower concentration, so just realized the separation between aluminium and plastics;
3) by add a small amount of tensio-active agent in separating agent, its effect is the interfacial tension that reduces between aluminium lamination and plastic layer, and it is more easily separated.
Beneficial effect
Formic acid in separating agent of the present invention is compared existing various separate substances with ethanol, because of the chemical property of himself phase centering less to the hazardness of environment, and low price, after mixing with water, use more can reduce production costs greatly, therefore and can obtain good separating effect, be applicable to realize the suitability for industrialized production that aluminum-plastic composite membrane is separated.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
The plastic-aluminum separating agent of the present embodiment mainly is mixed by formic acid and ethanol, it is altogether 50ml of 1:1(that the 0.01g Sodium dodecylbenzene sulfonate is dissolved in volume ratio) formic acid and alcohol mixeding liquid in, add aluminum-plastic composite membrane in volumetric flask, temperature is controlled at 50 ℃, the two layers of plastic disengaging time is different, the very fast approximately 1.5h of one deck, opposite side is 3.5h approximately, and this kind with the both sides plastics is relevant with the adhesion mode.
Aluminum-plastic composite membrane after separating is pulled out, removed the remaining separating agent in aluminum-plastic separation film surface with clear water; After pulverization process, put into whizzer and carry out centrifugation; At last the aluminium after centrifugal and plastics are further cleaned respectively dry getting final product with clear water.
Under the present embodiment, separating resulting is added up into following table:
Table 1
| Sample mass/g | Aluminium quality/g | Plastic quality/g | Total yield/% | Temperature/℃ | Disengaging time/h |
| 0.3267 | 0.0409 | 0.2855 | 99.91 | 50 | 3.5 |
Embodiment 2
It is altogether 50ml of 1:4(that the 0.01g sodium laurylsulfonate is dissolved in volume ratio) formic acid and ethanol be mixing solutions in, other conditions and process are with embodiment one, aluminum-plastic composite membrane one side plastics approximately 2h separate, opposite side is 4h approximately.
Aluminum-plastic composite membrane after separating is pulled out, removed the remaining separating agent in aluminum-plastic separation film surface with clear water; After pulverization process, put into whizzer and carry out centrifugation; At last the aluminium after centrifugal and plastics are further cleaned respectively dry getting final product with clear water.
Under the present embodiment, separating resulting is added up into following table:
Table 2
| Sample mass/g | Aluminium quality/g | Plastic quality/g | Total yield/% | Temperature/℃ | Disengaging time/h |
| 0.3146 | 0.0403 | 0.2725 | 99.43 | 50 | 4h |
Embodiment 3
It is altogether 50ml of 4:1(that the 0.01g Witco 1298 Soft Acid is dissolved in volume ratio) formic acid and ethanol be mixing solutions in, other conditions and process are with embodiment one, aluminum-plastic composite membrane one side plastics approximately 1.5h separate, opposite side is 2.5h approximately.
Aluminum-plastic composite membrane after separating is pulled out, removed the remaining separating agent in aluminum-plastic separation film surface with clear water; After pulverization process, put into whizzer and carry out centrifugation; At last the aluminium after centrifugal and plastics are further cleaned respectively dry getting final product with clear water.
Under the present embodiment, separating resulting is added up into following table:
Table 3
| Sample mass/g | Aluminium quality/g | Plastic quality/g | Total yield/% | Temperature/℃ | Disengaging time/h |
| 0.3112 | 0.0357 | 0.2185 | 81.68 | 50 | 2.5 |
Embodiment 4
Adopt embodiment 1 equipment used and mixed solution to form, just temperature being raise is 75 ℃, and carries out test of many times with same system, but to measure the reusing of mixing solutions, its data statistics result is as shown in the table:
Table 4
Can find out from above four groups of experimental datas, use this separating agent that aluminum-plastic composite membrane is separated, can repeatedly reuse, and disengaging time be very fast, aluminium and plastics recovery rate are all higher.
Embodiment 5
The 0.025g Sodium dodecylbenzene sulfonate is dissolved in formic acid: ethanol: water volume ratio is that the 1:1:8(cumulative volume is 50ml) mixing solutions in, aluminum-plastic composite membrane is put into solution, temperature is controlled approximately 70 ℃, approximately 3h realizes separating of aluminium and plastics, and carried out repeatedly repeated test, data statistics result such as following table:
Table 5
Different in this embodiment in the content of specimen in use aluminium and plastics and embodiment 1-4, wherein aluminium content is about 15%, and plastic content accounts for 85%, as known from Table 5, use this system also can comparatively fast realize the separating of aluminium in aluminum-plastic composite membrane and plastics, and cost is relatively lower.
Separating agent described in the present invention is to attempt on various existing patents or the basis through poor effect after improving; explore through test of many times; determine gradually; above embodiment is just seldom a part of; so it is not to limit content of the present invention, anyly is familiar with this skill person, within not breaking away from main spirits of the present invention and context; when doing various changes and retouching, therefore the protection domain of invention should be as the criterion with the basic right claimed range of applying for a patent.
Claims (8)
1. plastic-aluminum separating agent, its component comprises formic acid and ethanol, wherein formic acid and ethanol mix with volume ratio 4:1～1:4.
2. a kind of plastic-aluminum separating agent according to claim 1, it is characterized in that: the volume ratio of described formic acid and ethanol is 1:1.
3. a kind of plastic-aluminum separating agent according to claim 1, it is characterized in that: in described plastic-aluminum separating agent, also comprise anion surfactant, 0.01～0.25g:100ml of the mass volume ratio of this anion surfactant and mixed solution, mixed solution be formic acid and ethanol by volume 4:1～1:4 mix.
4. a kind of plastic-aluminum separating agent according to claim 3, it is characterized in that: described anion surfactant is Sodium dodecylbenzene sulfonate, Witco 1298 Soft Acid, sodium lauryl sulphate or sodium laurylsulfonate.
5. a right to use requires the plastic-aluminum separating method of the described plastic-aluminum separating agent of any one in 1-4, comprising:
(1) clean: aluminum-plastic composite membrane is cleaned, remove the dust impurity of surface adsorption;
(2) dosing: with above-mentioned plastic-aluminum separating agent and water mixed configuration parting liquid or directly with above-mentioned plastic-aluminum separating agent as parting liquid, keep the parting liquid temperature the scope of 40～100 ℃;
(3) soak: the aluminum-plastic composite membrane after cleaning drops in above-mentioned parting liquid and soaks, and soak time is 0.5～4h;
(4) go out groove and cleaning: the aluminum-plastic composite membrane after soaking is pulled out, removes the remaining separating agent in aluminum-plastic separation film surface with clear water;
(5) pulverize also centrifugation: step (4) gained aluminum-plastic separation film after pulverization process, is put into whizzer and carried out centrifugation;
(6) cleaning-drying: the aluminium after centrifugal and plastics are further cleaned with clear water respectively, then carry out drying and get final product.
6. a kind of plastic-aluminum separating method according to claim 5, it is characterized in that: the plastic-aluminum separating agent in described step (2) and the volume ratio of water are 1:0～1:9.
7. a kind of plastic-aluminum separating method according to claim 5, it is characterized in that: the temperature in described step (2) is 50～80 ℃.
8. a kind of plastic-aluminum separating method according to claim 5, it is characterized in that: the centrifugation in described step (5), rotating speed are 50～1200 rev/mins, centrifugation time 1～5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100720934A CN103131042A (en) | 2013-03-06 | 2013-03-06 | Aluminum-plastic separating agent and aluminum-plastic separating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100720934A CN103131042A (en) | 2013-03-06 | 2013-03-06 | Aluminum-plastic separating agent and aluminum-plastic separating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103131042A true CN103131042A (en) | 2013-06-05 |
Family
ID=48491533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100720934A Pending CN103131042A (en) | 2013-03-06 | 2013-03-06 | Aluminum-plastic separating agent and aluminum-plastic separating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103131042A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785673A (en) * | 2014-02-18 | 2014-05-14 | 李文祥 | Device suitable for separating flexible aluminum-plastic package composite waste |
| CN106273069A (en) * | 2016-08-04 | 2017-01-04 | 苏州华美欧菲检测技术服务有限公司 | A kind of method separating scrap metal part and plastic cement |
| CN106397828A (en) * | 2016-09-14 | 2017-02-15 | 闽南师范大学 | Recycling method of polyethylene in superfine fiber preparation |
| CN106832393A (en) * | 2017-03-24 | 2017-06-13 | 河南省万邦高效农业发展有限公司 | A kind of separation method of aluminum-plastic composite membrane |
| CN108593401A (en) * | 2018-02-27 | 2018-09-28 | 浙江工业大学 | Method for separating submicron-order micro-plastic in water environment or marine products |
| WO2019229235A1 (en) | 2018-06-01 | 2019-12-05 | saperatec GmbH | Separation fluid, method and apparatus for recycling multilayer material using a passivation agent |
| US10682788B2 (en) | 2014-05-05 | 2020-06-16 | saperatec GmbH | Method and apparatus for recycling packaging material |
| CN114292436A (en) * | 2021-12-21 | 2022-04-08 | 巩义市瑞赛克机械设备有限公司 | Aluminum-plastic separating agent and method for separating aluminum and plastic by using same |
| CN114369285A (en) * | 2022-03-10 | 2022-04-19 | 巩义市瑞赛克机械设备有限公司 | Method for separating aluminum-plastic composite membrane by using normal-temperature alkali |
| JP7190228B1 (en) | 2021-10-27 | 2022-12-15 | 株式会社ダイトク | Composite material sorted collection system and sorted collection method |
| US11535022B2 (en) | 2016-12-15 | 2022-12-27 | saperatec GmbH | Method and apparatus for recycling packaging material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165084A (en) * | 2007-09-20 | 2008-04-23 | 曹光军 | Plastic-aluminum separating agent and plastic-aluminum separating method |
| CN101912868A (en) * | 2010-07-30 | 2010-12-15 | 张侃 | Separation and recovery technology for waste aluminum-plastic composite packaging material |
-
2013
- 2013-03-06 CN CN2013100720934A patent/CN103131042A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165084A (en) * | 2007-09-20 | 2008-04-23 | 曹光军 | Plastic-aluminum separating agent and plastic-aluminum separating method |
| CN101912868A (en) * | 2010-07-30 | 2010-12-15 | 张侃 | Separation and recovery technology for waste aluminum-plastic composite packaging material |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785673A (en) * | 2014-02-18 | 2014-05-14 | 李文祥 | Device suitable for separating flexible aluminum-plastic package composite waste |
| US10682788B2 (en) | 2014-05-05 | 2020-06-16 | saperatec GmbH | Method and apparatus for recycling packaging material |
| CN106273069A (en) * | 2016-08-04 | 2017-01-04 | 苏州华美欧菲检测技术服务有限公司 | A kind of method separating scrap metal part and plastic cement |
| CN106397828A (en) * | 2016-09-14 | 2017-02-15 | 闽南师范大学 | Recycling method of polyethylene in superfine fiber preparation |
| CN106397828B (en) * | 2016-09-14 | 2019-04-23 | 闽南师范大学 | The recycling and reusing method of polyethylene in superfine fibre preparation |
| US11535022B2 (en) | 2016-12-15 | 2022-12-27 | saperatec GmbH | Method and apparatus for recycling packaging material |
| CN106832393A (en) * | 2017-03-24 | 2017-06-13 | 河南省万邦高效农业发展有限公司 | A kind of separation method of aluminum-plastic composite membrane |
| CN108593401A (en) * | 2018-02-27 | 2018-09-28 | 浙江工业大学 | Method for separating submicron-order micro-plastic in water environment or marine products |
| WO2019229235A1 (en) | 2018-06-01 | 2019-12-05 | saperatec GmbH | Separation fluid, method and apparatus for recycling multilayer material using a passivation agent |
| JP7190228B1 (en) | 2021-10-27 | 2022-12-15 | 株式会社ダイトク | Composite material sorted collection system and sorted collection method |
| JP2023065309A (en) * | 2021-10-27 | 2023-05-12 | 株式会社ダイトク | Separate recovery system and separate recovery method of composite material |
| CN114292436A (en) * | 2021-12-21 | 2022-04-08 | 巩义市瑞赛克机械设备有限公司 | Aluminum-plastic separating agent and method for separating aluminum and plastic by using same |
| CN114369285A (en) * | 2022-03-10 | 2022-04-19 | 巩义市瑞赛克机械设备有限公司 | Method for separating aluminum-plastic composite membrane by using normal-temperature alkali |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103131042A (en) | Aluminum-plastic separating agent and aluminum-plastic separating method | |
| JP4574543B2 (en) | Recycling method of layer waste film | |
| Zhu et al. | Preparation and characterization of TiO2-regenerated cellulose inorganic–polymer hybrid membranes for dehydration of caprolactam | |
| CN107500358A (en) | A kind of preparation method of nano molybdenum disulfide and its molybdenum disulfide of preparation | |
| CN103937329A (en) | Method for preparing molybdenum disulfide nano-layered dispersion with high stability | |
| CN106179249A (en) | A kind of preparation method of attapulgite cellulose composite adsorption microsphere | |
| CN110449037A (en) | A kind of two-dimensional layer vermiculite film, preparation and application | |
| CN103435838A (en) | Quick separating agent of aluminum-plastic composite packaging material and quick separating and recycling method of aluminum-plastic composite packaging material | |
| CN107522895A (en) | A kind of gentle method for preparing graphene polyurethane sponge composite | |
| CN202757821U (en) | Reserving device for liquid on solid surface | |
| CN104744724A (en) | Aluminium-plastic separating agent and method for carrying out aluminium-plastic separation by utilizing aluminium-plastic separating agent | |
| Peng et al. | Modified silica incorporating into PDMS polymeric membranes for bioethanol selection | |
| CN101838419A (en) | Coalescence material and preparation method | |
| CN101475701B (en) | Bubble assisted method for fast stripping plastic-aluminum composite material | |
| TW201028436A (en) | Method of polarizing plate high-value recycling | |
| CN102516586A (en) | Method for reclaiming phthalate plasticizer from waste plastic products | |
| CN103949458B (en) | Regeneration plastic-aluminum composite article environmental protection separating technology | |
| CN103102279B (en) | Method of purifying monoethanolamine | |
| CN106552809A (en) | A kind of separation and recovery technology for waste aluminum-plastic composite packaging material | |
| CN115340705A (en) | Comprehensive recycling method of waste multilayer plastic film | |
| CN102029080B (en) | Underwater oil droplet collection material and method for preparing same | |
| CN102602914A (en) | Method for rapidly and easily preparing graphene | |
| CN201437556U (en) | CNT pickling device of composite electrodeposition | |
| CN103146019A (en) | Emulsion type aluminum-plastic separation agent and method for using same to separate aluminum-plastic composite film | |
| CN114133618B (en) | Method for purifying cycloolefin copolymer from plastic reclaimed material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |