CN107599234A - A kind of waste aluminium plastic separates recycling technique - Google Patents
A kind of waste aluminium plastic separates recycling technique Download PDFInfo
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- CN107599234A CN107599234A CN201710613000.2A CN201710613000A CN107599234A CN 107599234 A CN107599234 A CN 107599234A CN 201710613000 A CN201710613000 A CN 201710613000A CN 107599234 A CN107599234 A CN 107599234A
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- aluminium
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- aluminium plastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention discloses a kind of waste aluminium plastic to separate recycling technique, comprises the following steps that：Graininess will be ground into discarded aluminium plastic composite packaging material input disintegrating cutter, then the aluminium plastic material after crushing is put into agitator, organic solvent to aluminium plastic material is put into agitator to be totally submerged, after 2 8h are stirred under 200 500 rotating speeds, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are cleaned with clear water respectively；Carry out being granulated remodeling after plastic material drying after cleaning and obtain finished plastic, be put into reaction vessel after being deposited in the aluminum foil material drying at agitator bottom and carry out secondary separation；1 2mol/L hydrochloric acid solution is added in reaction vessel, carries out filtration washing after stirring 2 5h at a temperature of 30 70 DEG C, filtrate is stand-by, and filter residue carries out granulation remodeling together with the isolated plastic material in step 1.The present invention is combined realization separation by organic solvent method and fractionation, and this method separation is thorough, and product application field is extensive.
Description
Technical field
The invention belongs to aluminium plastic material field, is related to a kind of waste aluminium plastic separation recycling technique.
Background technology
Aluminium plastic composite packaging material has the property such as high intensity, impact resistance, antistatic, soft protection against the tide and is widely used,
Aluminium plastic composite packaging material is usually to be coated with one layer of tack coat using polythene material surface and then plate aluminum in tie layer surface
Standby to form, for the aluminium plastic composite packaging material of environmental protection, tack coat therein is soluble, can be very good to realize waste aluminium plastic
The recycling of material, but the tack coat on the aluminium plastic material surface for having is difficult dissolving, therefore be difficult directly using organic
Solvent segregation realizes the separation recycling of aluminium plastic material.
The content of the invention
It is an object of the invention to provide a kind of waste aluminium plastic to separate recycling technique, and the technique is real by two-step separation
It is existing, first separation is realized first with organic solvent method, the aluminum foil material obtained after first separation is then passed through into chemolysis
Method realizes secondary separation, and the liquor alumini chloridi obtained after dissolving can obtain aluminium polychloride and oxidation by two methods
Two kinds of no products of aluminium solid are applied to different field, and this method separation is thorough, and product application field is extensive.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of waste aluminium plastic separates recycling technique, comprises the following steps that：
Step 1：Graininess will be ground into discarded aluminium plastic composite packaging material input disintegrating cutter, then will crushed
Aluminium plastic material afterwards is put into agitator, and organic solvent to aluminium plastic material is put into agitator and is totally submerged, and is turned in 200-500
After the lower stirring 2-8h of speed, by the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom respectively with clear
Water cleans；
Step 2：Granulation remodeling is carried out after plastic material drying after cleaning and obtains finished plastic, is deposited in agitator bottom
It is put into after aluminum foil material drying in reaction vessel and carries out secondary separation；
Step 3：1-2mol/L hydrochloric acid solution is added in reaction vessel, it is laggard that 2-5h is stirred at a temperature of 30-70 DEG C
Row filtration washing, filtrate is stand-by, and filter residue carries out granulation remodeling together with the isolated plastic material in step 1；
Step 4：1-2mol/L sodium hydroxide solution is added in the filtrate that step 3 is obtained, is stirred at 60-90 DEG C anti-
3-5h is answered, obtains aluminium polychloride；
Step 5：Ammoniacal liquor is added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be filtrated to get
Sediment in add 0.3-1mol/L sodium hydroxide solutions until precipitation be completely dissolved, be then filled with into the solution after dissolving
Carbon dioxide is filtered after the pH=5-7 of solution, and then ageing 18-48h, washed, dried, and obtains aluminium hydroxide
Precipitation；
Step 6：By the aluminum hydroxide precipitation that step 5 obtains at 1200 DEG C high temperature sintering, obtain alumina solid.
Organic solvent is the one or more in acetone, chloroform, ether, benzene, toluene in the step 1.
The mass ratio of the aluminum foil material and hydrochloric acid that are deposited in agitator bottom in the step 3 in reaction vessel is 1：10-20.
The volume ratio of filtrate and sodium hydroxide is 1 in the step 4:0.9-1.2.
Beneficial effects of the present invention：
The present invention realizes the first separation of waste aluminium plastic material by organic solvent immersion, then recycles chemical method to dividing
The aluminum foil material obtained from after is dissolved, and after dissolving aluminium foil therein, the plastics of aluminium foil surface residual can separate again,
Separated by two steps, separation product is thorough.
The liquor alumini chloridi that the present invention is obtained by chemical method dissolving aluminium foil is reclaimed again by two kinds of different methods
Utilize, two kinds of different recovery products of aluminium polychloride and aluminum oxide can be obtained, it is possible to achieve the multi-field of recovery product should
With.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is that waste aluminium plastic of the present invention separates recycling process chart；
Embodiment
Embodiment 1：
A kind of waste aluminium plastic separates recycling technique, comprises the following steps that：
Step 1：Graininess will be ground into discarded aluminium plastic composite packaging material input disintegrating cutter, then will crushed
Aluminium plastic material afterwards is put into agitator, and toluene to aluminium plastic material is put into agitator and is totally submerged, is stirred under 500 rotating speeds
After 8h, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are cleaned with clear water respectively；
Step 2：Granulation remodeling is carried out after plastic material drying after cleaning and obtains finished plastic, is deposited in agitator bottom
It is put into after aluminum foil material drying in reaction vessel and carries out secondary separation；
Step 3：2mol/L hydrochloric acid solution, the wherein matter of the aluminum foil material at agitator bottom and hydrochloric acid are added in reaction vessel
Amount is than being 1：20, filtration washing is carried out after stirring 5h at a temperature of 70 DEG C, filtrate is stand-by, filter residue and separating in step 1
Granulation remodeling is carried out together to plastic material；
Step 4：2mol/L sodium hydroxide solution, wherein filtrate and sodium hydroxide are added in the filtrate that step 3 is obtained
Volume ratio be 1:1.2, stirring reaction 5h, obtains aluminium polychloride at 90 DEG C；
Step 5：Ammoniacal liquor is added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be filtrated to get
Sediment in add 1mol/L sodium hydroxide solutions until precipitation be completely dissolved, be then filled with dioxy into the solution after dissolving
Change carbon to be filtered, washed, dried after the pH=7 of solution, and then ageing 48h, obtain aluminum hydroxide precipitation；
Step 6：By the aluminum hydroxide precipitation that step 5 obtains at 1200 DEG C high temperature sintering, obtain alumina solid.
Embodiment 2：
A kind of waste aluminium plastic separates recycling technique, comprises the following steps that：
Step 1：Graininess will be ground into discarded aluminium plastic composite packaging material input disintegrating cutter, then will crushed
Aluminium plastic material afterwards is put into agitator, and acetone to aluminium plastic material is put into agitator and is totally submerged, is stirred under 200 rotating speeds
After 2h, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are cleaned with clear water respectively；
Step 2：Granulation remodeling is carried out after plastic material drying after cleaning and obtains finished plastic, is deposited in agitator bottom
It is put into after aluminum foil material drying in reaction vessel and carries out secondary separation；
Step 3：1mol/L hydrochloric acid solution, the wherein matter of the aluminum foil material at agitator bottom and hydrochloric acid are added in reaction vessel
Amount is than being 1：10, filtration washing is carried out after stirring 2h at a temperature of 30 DEG C, filtrate is stand-by, filter residue and separating in step 1
Granulation remodeling is carried out together to plastic material；
Step 4：1mol/L sodium hydroxide solution, wherein filtrate and sodium hydroxide are added in the filtrate that step 3 is obtained
Volume ratio be 1:0.9, stirring reaction 3h, obtains aluminium polychloride at 60 DEG C；
Step 5：Ammoniacal liquor is added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be filtrated to get
Sediment in add 0.3mol/L sodium hydroxide solutions until precipitation be completely dissolved, be then filled with two into the solution after dissolving
Carbonoxide is filtered after the pH=5 of solution, and then ageing 18h, washed, dried, and obtains aluminum hydroxide precipitation；
Step 6：By the aluminum hydroxide precipitation that step 5 obtains at 1200 DEG C high temperature sintering, obtain alumina solid.
Embodiment 3：
A kind of waste aluminium plastic separates recycling technique, comprises the following steps that：
Step 1：Graininess will be ground into discarded aluminium plastic composite packaging material input disintegrating cutter, then will crushed
Aluminium plastic material afterwards is put into agitator, and chloroform is put into agitator, is totally submerged to aluminium plastic material, is stirred under 300 rotating speeds
After mixing 6h, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are cleaned with clear water respectively；
Step 2：Granulation remodeling is carried out after plastic material drying after cleaning and obtains finished plastic, is deposited in agitator bottom
It is put into after aluminum foil material drying in reaction vessel and carries out secondary separation；
Step 3：Addition 1.5mol/L hydrochloric acid solution in reaction vessel, the wherein aluminum foil material at agitator bottom and hydrochloric acid
Mass ratio is 1：15, filtration washing is carried out after stirring 4h at a temperature of 50 DEG C, filtrate is stand-by, filter residue and the separation in step 1
Obtain plastic material and carry out granulation remodeling together；
Step 4：1.5mol/L sodium hydroxide solution, wherein filtrate and hydroxide are added in the filtrate that step 3 is obtained
The volume ratio of sodium is 1:1, stirring reaction 4h, obtains aluminium polychloride at 70 DEG C；
Step 5：Ammoniacal liquor is added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be filtrated to get
Sediment in add 0.5mol/L sodium hydroxide solutions until precipitation be completely dissolved, be then filled with two into the solution after dissolving
Carbonoxide is filtered after the pH=6 of solution, and then ageing 24h, washed, dried, and obtains aluminum hydroxide precipitation；
Step 6：By the aluminum hydroxide precipitation that step 5 obtains at 1200 DEG C high temperature sintering, obtain alumina solid.
Embodiment 4：
Organic solvent in embodiment 1-3 is replaced with into ether and benzene.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (4)
1. a kind of waste aluminium plastic separates recycling technique, it is characterised in that comprises the following steps that：
Step 1：Graininess will be ground into discarded aluminium plastic composite packaging material input disintegrating cutter, then by after crushing
Aluminium plastic material is put into agitator, and organic solvent to aluminium plastic material is put into agitator and is totally submerged, under 200-500 rotating speeds
It is after stirring 2-8h, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom is clear with clear water respectively
Wash；
Step 2：Granulation remodeling is carried out after plastic material drying after cleaning and obtains finished plastic, is deposited in the aluminium foil at agitator bottom
It is put into after material drying in reaction vessel and carries out secondary separation；
Step 3：1-2mol/L hydrochloric acid solution is added in reaction vessel, was carried out after stirring 2-5h at a temperature of 30-70 DEG C
Filter washing, filtrate is stand-by, and filter residue carries out granulation remodeling together with the isolated plastic material in step 1；
Step 4：1-2mol/L sodium hydroxide solution, the stirring reaction 3- at 60-90 DEG C are added in the filtrate that step 3 is obtained
5h, obtain aluminium polychloride；
Step 5：Ammoniacal liquor is added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, is sunk what is be filtrated to get
0.3-1mol/L sodium hydroxide solutions are added in starch to be completely dissolved until precipitating, and are then filled with dioxy into the solution after dissolving
Change carbon to be filtered, washed, dried after the pH=5-7 of solution, and then ageing 18-48h, obtain aluminium hydroxide and sink
Form sediment；
Step 6：By the aluminum hydroxide precipitation that step 5 obtains at 1200 DEG C high temperature sintering, obtain alumina solid.
2. a kind of waste aluminium plastic separation recycling technique according to claim 1, it is characterised in that have in the step 1
Solvent is the one or more in acetone, chloroform, ether, benzene, toluene.
3. a kind of waste aluminium plastic separation recycling technique according to claim 1, it is characterised in that anti-in the step 3
It is 1 to answer the mass ratio of the aluminum foil material that agitator bottom is deposited in container and hydrochloric acid：10-20.
4. a kind of waste aluminium plastic separation recycling technique according to claim 1, it is characterised in that filtered in the step 4
The volume ratio of liquid and sodium hydroxide is 1:0.9-1.2.
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Cited By (4)
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| CN109016233A (en) * | 2018-07-12 | 2018-12-18 | 赵安全 | A kind of waste aluminium plastic resource circulation utilizing device and method |
| CN109261688A (en) * | 2018-08-31 | 2019-01-25 | 曲靖宏程工贸有限公司 | A kind of recovery processing technique of discarded aluminum foil composite paper |
| CN110358144A (en) * | 2019-08-23 | 2019-10-22 | 常熟市滨江化工有限公司 | A kind of solvent bath recovery method of steel lining plastics |
| CN112845507A (en) * | 2020-12-26 | 2021-05-28 | 安徽省腾越铝塑有限公司 | Environment-friendly low-energy-consumption high-efficiency separation method for waste aluminum-plastic products |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109016233A (en) * | 2018-07-12 | 2018-12-18 | 赵安全 | A kind of waste aluminium plastic resource circulation utilizing device and method |
| CN109261688A (en) * | 2018-08-31 | 2019-01-25 | 曲靖宏程工贸有限公司 | A kind of recovery processing technique of discarded aluminum foil composite paper |
| CN110358144A (en) * | 2019-08-23 | 2019-10-22 | 常熟市滨江化工有限公司 | A kind of solvent bath recovery method of steel lining plastics |
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| CN112845507A (en) * | 2020-12-26 | 2021-05-28 | 安徽省腾越铝塑有限公司 | Environment-friendly low-energy-consumption high-efficiency separation method for waste aluminum-plastic products |
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Denomination of invention: A separation and recycling process of waste aluminum and plastic Effective date of registration: 20201229 Granted publication date: 20190705 Pledgee: The development of small and medium-sized enterprises financing Company Limited by Guarantee Jieshou City Pledgor: ANHUI TENGYUE ALUMINUM PLASTIC Co.,Ltd. Registration number: Y2020980010102 |
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