CN107599234B - A kind of waste aluminium plastic separation recycling technique - Google Patents

A kind of waste aluminium plastic separation recycling technique Download PDF

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Publication number
CN107599234B
CN107599234B CN201710613000.2A CN201710613000A CN107599234B CN 107599234 B CN107599234 B CN 107599234B CN 201710613000 A CN201710613000 A CN 201710613000A CN 107599234 B CN107599234 B CN 107599234B
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aluminium
plastic material
agitator
aluminium plastic
plastic
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CN107599234A (en
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张松峰
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ANHUI TENGYUE ALUMINIUM PLASTIC Co Ltd
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ANHUI TENGYUE ALUMINIUM PLASTIC Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a kind of waste aluminium plastics to separate recycling technique, specific step is as follows: will be ground into graininess in discarded aluminium plastic composite packaging material investment disintegrating cutter, then smashed aluminium plastic material is put into agitator, organic solvent to aluminium plastic material is put into agitator to be totally submerged, after stirring 2-8h under 200-500 revolving speed, 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;It carries out being granulated remodeling after plastic material drying after cleaning and obtains finished plastic, be put into reaction vessel after being deposited in the aluminum foil material drying at agitator bottom and carry out secondary separation;In reaction vessel be added 1-2mol/L hydrochloric acid solution, 30-70 DEG C at a temperature of stirring 2-5h after carry out filtration washing, filtrate is stand-by, and filter residue carries out granulation remodeling together with the isolated plastic material in step 1.The present invention combines realization separation by organic solvent method and fractionation, and this method separation is thorough, and product application field is extensive.

Description

A kind of waste aluminium plastic separation recycling technique
Technical field
The invention belongs to aluminium plastic material fields, are related to a kind of waste aluminium plastic separation recycling technique.
Background technique
Aluminium plastic composite packaging material have high intensity, impact resistance, antistatic, the softness properties such as moisture-proof and be widely used, Aluminium plastic composite packaging material is usually to utilize polythene material surface to be coated with one layer of adhesive layer then to plate aluminum in tie layer surface Standby to form, for the aluminium plastic composite packaging material of environmental protection, adhesive layer therein is soluble, can be very good to realize waste aluminium plastic The recycling and reusing of material, but the adhesive layer on the aluminium plastic material surface having is difficult to dissolve, therefore be difficult directly using organic The separation recycling of solvent segregation realization aluminium plastic material.
Summary of the invention
The purpose of the present invention is to provide a kind of waste aluminium plastics to separate recycling technique, which passes through two-step separation reality It is existing, first separation is realized first with organic solvent method, and 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 passes through the available aluminium polychloride of two methods and oxidation Two kinds of unused 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 separation recycling technique, the specific steps are as follows:
Step 1: graininess will be ground into discarded aluminium plastic composite packaging material investment 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, in 200-500r/ After stirring 2-8h under the revolving speed of min, by the plastic material that surface of organic solvent floats and the aluminum foil material for being deposited in agitator bottom It is cleaned respectively with clear water;
Step 2: carrying out granulation remodeling after the plastic material drying after cleaning and obtain finished plastic, be deposited in agitator bottom It is put into reaction vessel after aluminum foil material drying and carries out secondary separation;
Step 3: in reaction vessel be added 1-2mol/L hydrochloric acid solution, 30-70 DEG C at a temperature of stirring 2-5h it is laggard 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: the sodium hydroxide solution of 1-2mol/L being added in the filtrate that step 3 is obtained, is stirred at 60-90 DEG C anti- 3-5h is answered, aluminium polychloride is obtained;
Step 5: ammonium hydroxide being added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be obtained by filtration Sediment in be added 0.3-1mol/L sodium hydroxide solution until precipitating be completely dissolved, be then filled with into dissolved solution Then carbon dioxide is filtered, washed after ageing 18-48h, is dried, obtain aluminium hydroxide until the pH=5-7 of solution Precipitating;
Step 6: the aluminum hydroxide precipitation that step 5 is obtained high temperature sintering at 1200 DEG C obtains alumina solid.
Organic solvent is one of acetone, chloroform, ether, benzene, toluene or a variety of 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 1:0.9-1.2 in the step 4.
Beneficial effects of the present invention:
The present invention by organic solvent impregnate realize waste aluminium plastic material first separation, then recycle chemical method to point The aluminum foil material obtained from after is dissolved, and after dissolving aluminium foil therein, the remaining plastics of aluminium foil surface can separate again, It is separated by two steps, separation product is thorough.
The present invention dissolves the liquor alumini chloridi that aluminium foil obtains by chemical method and is recycled again by two different methods It utilizes, available aluminium polychloride and the two different recovery products of aluminium oxide may be implemented the multi-field of recovery product and answer With.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is that waste aluminium plastic of the present invention separates recycling process flow chart.
Specific embodiment
Embodiment 1:
A kind of waste aluminium plastic separation recycling technique, the specific steps are as follows:
Step 1: graininess will be ground into discarded aluminium plastic composite packaging material investment 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, in turning for 500r/min After the lower stirring 8h of speed, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are used into clear water respectively Cleaning;
Step 2: carrying out granulation remodeling after the plastic material drying after cleaning and obtain finished plastic, be deposited in agitator bottom It is put into reaction vessel after aluminum foil material drying and carries out secondary separation;
Step 3: the hydrochloric acid solution of 2mol/L being added in reaction vessel, wherein the matter of the aluminum foil material and hydrochloric acid at agitator bottom Amount than being 1:20,70 DEG C at a temperature of stirring 5h after carry out filtration washing, filtrate is stand-by, separating in filter residue and step 1 Granulation remodeling is carried out together to plastic material;
Step 4: the sodium hydroxide solution of 2mol/L being added in the filtrate that step 3 is obtained, wherein filtrate and sodium hydroxide Volume ratio be 1:1.2, be stirred to react 5h at 90 DEG C, obtain aluminium polychloride;
Step 5: ammonium hydroxide being added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be obtained by filtration Sediment in be added 1mol/L sodium hydroxide solution until precipitating be completely dissolved, dioxy is then filled with into dissolved solution Change carbon until the pH=7 of solution, is then filtered, washed, is dried after ageing 48h, obtain aluminum hydroxide precipitation;
Step 6: the aluminum hydroxide precipitation that step 5 is obtained high temperature sintering at 1200 DEG C obtains alumina solid.
Embodiment 2:
A kind of waste aluminium plastic separation recycling technique, the specific steps are as follows:
Step 1: graininess will be ground into discarded aluminium plastic composite packaging material investment 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, in turning for 200r/min After the lower stirring 2h of speed, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are used into clear water respectively Cleaning;
Step 2: carrying out granulation remodeling after the plastic material drying after cleaning and obtain finished plastic, be deposited in agitator bottom It is put into reaction vessel after aluminum foil material drying and carries out secondary separation;
Step 3: the hydrochloric acid solution of 1mol/L being added in reaction vessel, wherein the matter of the aluminum foil material and hydrochloric acid at agitator bottom Amount than being 1:10,30 DEG C at a temperature of stirring 2h after carry out filtration washing, filtrate is stand-by, separating in filter residue and step 1 Granulation remodeling is carried out together to plastic material;
Step 4: the sodium hydroxide solution of 1mol/L being added in the filtrate that step 3 is obtained, wherein filtrate and sodium hydroxide Volume ratio be 1:0.9, be stirred to react 3h at 60 DEG C, obtain aluminium polychloride;
Step 5: ammonium hydroxide being added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be obtained by filtration Sediment in be added 0.3mol/L sodium hydroxide solution until precipitating be completely dissolved, two are then filled with into dissolved solution Then carbonoxide is filtered, washed after ageing 18h, is dried, obtain aluminum hydroxide precipitation until the pH=5 of solution;
Step 6: the aluminum hydroxide precipitation that step 5 is obtained high temperature sintering at 1200 DEG C obtains alumina solid.
Embodiment 3:
A kind of waste aluminium plastic separation recycling technique, the specific steps are as follows:
Step 1: graininess will be ground into discarded aluminium plastic composite packaging material investment 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, in turning for 300r/min After the lower stirring 6h of speed, the plastic material of surface of organic solvent floating and the aluminum foil material for being deposited in agitator bottom are used into clear water respectively Cleaning;
Step 2: carrying out granulation remodeling after the plastic material drying after cleaning and obtain finished plastic, be deposited in agitator bottom It is put into reaction vessel after aluminum foil material drying and carries out secondary separation;
Step 3: the hydrochloric acid solution of 1.5mol/L being added in reaction vessel, wherein the aluminum foil material and hydrochloric acid at agitator bottom Mass ratio is 1:15,50 DEG C at a temperature of stirring 4h after carry out filtration washing, filtrate is stand-by, the separation in filter residue and step 1 It obtains plastic material and carries out granulation remodeling together;
Step 4: the sodium hydroxide solution of 1.5mol/L being added in the filtrate that step 3 is obtained, wherein filtrate and hydroxide The volume ratio of sodium is 1:1, is stirred to react 4h at 70 DEG C, obtains aluminium polychloride;
Step 5: ammonium hydroxide being added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, will be obtained by filtration Sediment in be added 0.5mol/L sodium hydroxide solution until precipitating be completely dissolved, two are then filled with into dissolved solution Carbonoxide is until the pH=6 of solution, and then ageing is filtered, washed afterwards for 24 hours, is dried, and obtains aluminum hydroxide precipitation;
Step 6: the aluminum hydroxide precipitation that step 5 is obtained high temperature sintering at 1200 DEG C obtains 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 to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (4)

1. a kind of waste aluminium plastic separates recycling technique, which is characterized in that specific step is as follows:
Step 1: it will be ground into graininess in discarded aluminium plastic composite packaging material investment disintegrating cutter, it then will be smashed Aluminium plastic material is put into agitator, and organic solvent to aluminium plastic material is put into agitator and is totally submerged, in 200-500r/min Revolving speed under stir 2-8h after, by surface of organic solvent floating plastic material and be deposited in agitator bottom aluminum foil material distinguish It is cleaned with clear water;
Step 2: carrying out granulation remodeling after the plastic material drying after cleaning and obtain finished plastic, be deposited in the aluminium foil at agitator bottom It is put into reaction vessel after material drying and carries out secondary separation;
Step 3: in reaction vessel be added 1-2mol/L hydrochloric acid solution, 30-70 DEG C at a temperature of stirring 2-5h after carried out Filter washing, filtrate is stand-by, and filter residue carries out granulation remodeling together with the isolated plastic material in step 1;
Step 4: the sodium hydroxide solution of 1-2mol/L being added in the filtrate that step 3 is obtained, is stirred to react 3- at 60-90 DEG C 5h obtains aluminium polychloride;
Step 5: ammonium hydroxide is added in the filtrate that step 3 is obtained until the pH=10 of solution, then filters, it is heavy by what is be obtained by filtration 0.3-1mol/L sodium hydroxide solution is added in starch to be completely dissolved until precipitating, dioxy is then filled with into dissolved solution Change carbon until the pH=5-7 of solution, is then filtered, washed, is dried after ageing 18-48h, it is heavy to obtain aluminium hydroxide It forms sediment;
Step 6: the aluminum hydroxide precipitation that step 5 is obtained high temperature sintering at 1200 DEG C obtains alumina solid.
2. a kind of waste aluminium plastic according to claim 1 separates recycling technique, which is characterized in that have in the step 1 Solvent is one of acetone, chloroform, ether, benzene, toluene or a variety of.
3. a kind of waste aluminium plastic according to claim 1 separates recycling technique, which is characterized in that anti-in the step 3 The mass ratio for answering aluminum foil material and hydrochloric acid that agitator bottom is deposited in container is 1:10-20.
4. a kind of waste aluminium plastic according to claim 1 separates recycling technique, which is characterized in that filtered in the step 4 The volume ratio of liquid and sodium hydroxide is 1:0.9-1.2.
CN201710613000.2A 2017-07-25 2017-07-25 A kind of waste aluminium plastic separation recycling technique Active CN107599234B (en)

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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
CN109261688B (en) * 2018-08-31 2021-07-09 曲靖宏程工贸有限公司 Recovery treatment process of waste aluminum foil composite paper
CN110358144B (en) * 2019-08-23 2022-04-01 常熟市滨江化工有限公司 Solvent bath recovery method for steel lining plastic
CN112845507B (en) * 2020-12-26 2022-04-01 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.

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