CN1401443A - Method and stripping agent for separating and recovering aluminium-plastic paper composite packaging material - Google Patents
Method and stripping agent for separating and recovering aluminium-plastic paper composite packaging material Download PDFInfo
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- CN1401443A CN1401443A CN 02142482 CN02142482A CN1401443A CN 1401443 A CN1401443 A CN 1401443A CN 02142482 CN02142482 CN 02142482 CN 02142482 A CN02142482 A CN 02142482A CN 1401443 A CN1401443 A CN 1401443A
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Abstract
A process for recovering the packing aluminium-plastic paper with stripping agent includes immersing said packing paper in an acidic solution containing nitric acid, dissolving the aluminium oxide layer at joint position, and separating the aluminium layer from plastic or paper layer.
Description
Technical field
The invention relates to a kind of separation and recovery method and remover thereof that utilizes plastic-aluminum paper compound package material, refer in particular to a kind of utilization and soak plastic-aluminum (paper) compound package material, utilize method again with the wet separation of separating plastic-aluminum paper various raw materials that compound package material is had to contain salpeter solution.
Background technology
Having many uses of plastic-aluminum (paper) compound package material, its material is that aluminium foil and plastic sheeting or stationery mutually combine and form, utilize aluminium foil layer to have the characteristic of resistance light constant temperature, for packed article apt to deteriorate, has splendid preservation effect, often apply to food, medicine, chemicals, commodity and the various needs rotten article that avoid sun exposure, simultaneously because cost of manufacture is not high, therefore used by a large amount of manufacturings, for example modal beverage packaging " Tetra Pak " is an example, its skin is one to can be used for printing the ply of paper of commodity pattern, middle partly is the heat insulation aluminium foil layer of a resistance light, inner then prevent the vinyon layer that aluminium foil contacts with packed article for one deck, between each layer interface with high frequency or hot pressing mode, allow the composition surface fusion of plastic layer, and to form stable alundum (Al bonding with aluminium foil surface, promptly constitutes plastic-aluminum paper compound package material.
The bond strength of plastic-aluminum paper compound package material is splendid, when recycling, be difficult to aluminium layer is separated fully with plastic layer, cause the puzzlement that is difficult to recycling, because the application of plastic-aluminum paper compound package material is very extensive, therefore the discarded object amount that produces is quite big, if effectively recycling, not only can cause a big problem of environmental protection aspect, and cause the serious waste of resource.
Be subject to the problem that aluminium layer and plastic layer are difficult to separate, mostly be directly to handle for aluminium plastic composite packaging material at present in the discarded object mode, can only utilize a kind of dry type of physical property to separate the recycling mode at most, plastic-aluminum paper compound package material utilization machinery is broken into chip, and the strength that allows aluminium foil and plastic layer or ply of paper be beaten is separated.Its major defect is:
Such separation way of recycling, not only operation trouble, processing cost height, and tending to residually on the aluminium foil fragment has a little plastic layer (ply of paper), or on the plastic paper fragment residual a little aluminium foil layer, cause the problems such as purity difference and recovery value are not high that reclaim.
Summary of the invention
Main purpose of the present invention provides a kind of separation and recovery method and remover thereof of plastic-aluminum paper compound package material, and its salpeter solution by chemistry penetrates plastic layer or ply of paper, and corrodes the aluminum oxide (Al of aluminium foil layer faying face
2O
3) layer, the complete and effect that separate fully with aluminium layer, plastic layer or the ply of paper of plastic-aluminum paper compound package material reaches and allows the effectively purpose of recycling of various materials that plastic-aluminum paper compound package material had.
The object of the present invention is achieved like this: the technological means that separation and recovery method adopted of plastic-aluminum paper compound package material of the present invention comprises:
The plastic-aluminum paper compound package material of collecting is inserted in the peel groove with remover, and this remover is the acid solution that contains the nitric acid composition at least, and the alternative compositions such as acetic acid solution and phosphoric acid solution that add.After soaking, the acid solution composition of remover can penetrate the plastic layer or the ply of paper on plastic-aluminum paper compound package material surface, and the al oxide layer of erosion aluminium foil layer faying face, make each material layer complete and separate completely, after handling through drain, clean and the washing that neutralizes etc. again, promptly can be with the layers of material of plastic-aluminum paper compound package material, classification is reclaimed to concentrate again and is utilized.
The present invention utilizes the permeable plastic layer of nitric acid molecule or ply of paper and the characteristic of dissolving aluminium foil surfaces of aluminum oxide interface, complete and the separation fully with each material layer, reach effectively and reclaim the purpose that high-purity material utilizes again, and need not expend the too many energy, save processing cost, have the industry using value of economy and validity deeply.
Describe in detail below in conjunction with preferred embodiment and accompanying drawing.
Description of drawings
Fig. 1 is a method flow schematic diagram of the present invention.
Fig. 2 is an equipment configuration schematic diagram of the present invention.
The specific embodiment
Consult Fig. 1-shown in Figure 2, the concrete implementation step of the separation and recovery method of relevant plastic-aluminum paper compound package material of the present invention comprises as follows:
Immersion is peeled off: will collect pending plastic-aluminum paper compound package material and be positioned over and hang in the hanging basket (not shown in the figures) that soaks overhead traveling crane 1 below, and hang down to falling into to place and be soaked in the remover of corresponding peel groove 2, this remover is the acid solution that contains the nitric acid composition, its solution concentration is about about 15-68%, and alternative acetate or the phosphoric acid solution of adding, the effect that can allow plastic-aluminum paper compound package material peel off is better; The present invention can heat when immersion is peeled off, heating-up temperature is about between 40-70 ℃, can quicken the carrying out that remover penetrates stripping reaction, and being provided with gas skirt 3 in peel groove 2 tops, the toxic gas that processing procedure can be produced is concentrated and is pumped to the waste gas sewage treatment equipment and handle.
Drain: utilize hang soak overhead traveling crane 1 with hanging basket together with materials such as the aluminium foil that soaks separation and plastic foil or ply of papers, be transplanted on together in the water leg 4, the nitric acid stripper solution that each material surface is carried secretly is dripped and is removed, and makes plastic-aluminum paper compound package material slightly dry.
Clean: then materials such as aluminium foil that will drain and plastic foil or ply of paper, move into rinse bath 5 in advance, utilize jetting machine 6 to wash with water, with exhausted mostly partly the residual nitric acid stripper solution that is attached to each material surface cleaned removal.
Neutralization washing: then will be through aluminium foil and the materials such as plastic foil or ply of paper that clean, be transplanted in the ultrasonic and sink 7, utilization contains the alkaline solution that hydroxide receives nitric acid stripper is neutralized, separately reclaim so that will respectively peel off the material of finishing, avoid the operator to be subjected to the injury of nitric acid, and ultrasonic can will be attached to the contaminant removal of each material surface, therefore cleans the purity height of aluminium foil layer, plastic layer or the ply of paper of back gained, is convenient to recycling.
Dry and classification is reclaimed: each material of the plastic-aluminum paper compound package material that will separate and clean up, be transplanted on unload load plate 8 carry out air-dry and the classification, allow each material layer of plastic-aluminum paper compound package material can separate the processing of classification branch receipts complete and completely, each salvage material all can not mix the composition that different material layer is arranged, and reclaims the Available Material that obtains high-purity and high value effectively and utilizes.
In processing procedure of the present invention, the nitric acid composition of remover is crossed plastic layer (being generally polyethylene) owing to it is permeable, enters on the combination interface of plastic layer and aluminium foil layer, to the aluminum oxide (Al of combination interface
2O
3) carry out separate dissolved, allow the separating of plastic layer and aluminium foil layer.For the combination interface of ply of paper and aluminium foil layer, the also permeable ply of paper of crossing of the nitric acid composition of remover of the present invention reaches the combination interface of ply of paper and aluminium foil layer, reaches identical separating effect.
By experiment, operating condition of the present invention generally can for: the concentration of remover is made as about 15-68%, and heating-up temperature is made as between 40-70 ℃, relevant for concentration and the heating-up temperature that remover is selected, depends primarily on the thickness of plastic sheeting.Wherein, when remover concentration is 68% and heating-up temperature when being 60 ℃, the time of soaking in peel groove is about 40 minutes; When remover concentration is 34% and heating-up temperature when being 65 ℃, the time of soaking in peel groove is about 60 minutes.
If under the situation that does not heat, directly carry out stripping reaction in peel groove, its operating condition is: when remover concentration is 30-34%, need approximately to soak 7 hours in peel groove; When remover concentration is 20-30%, need approximately to soak 15 hours in peel groove.Hence one can see that, and heating can allow speeding up of stripping reaction, can shorten the activity duration of stripping reaction.
The separation and recovery method of plastic-aluminum paper compound package material of the present invention, utilize the permeable characteristic of crossing plastic layer and ply of paper of nitric acid molecule, directly penetrate into the aluminium foil combination interface of plastic-aluminum paper compound package material, and the al oxide layer of dissolving combination interface, aluminium foil can complete and fully be separated with plastic layer or ply of paper, reach the purpose that reclaims high-purity material.The present invention simultaneously uses mode of heating, processing time and program are shortened in accelerated reaction, therefore for handling a large amount of plastic-aluminum paper compound package material discarded objects splendid effect are arranged, and need not expend the too many electric power and the energy, can save processing cost, have the industry using value deeply.
Comprehensively above-mentioned, technical scheme of the present invention has novelty, creativeness and practicality.
Claims (10)
1, a kind of separation and recovery method of plastic-aluminum paper compound package material, it is characterized in that: it is pending plastic-aluminum paper compound package material to be inserted soak lift-off processing in the remover, this remover is the acid solution that contains the nitric acid composition at least, utilize remover to penetrate the plastic foil on plastic-aluminum paper compound package material top layer and enter into the combination interface of aluminium layer, and the aluminum oxide of dissolving aluminium layer combination interface, aluminium layer is separated with plastic foil; Again in regular turn through cleaning and dry the processing after, with the recovery of being classified of the layers of material of plastic-aluminum paper compound package material.
2, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1, it is characterized in that: the remover concentration of this immersion stripping reaction is 15-68%, and heat and come accelerated reaction to carry out in soaking the utilization of lift-off processing process, this heating-up temperature is 40-70 ℃.
3, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1 is characterized in that: include after this immersion lift-off processing:
Drain: the plastic-aluminum paper compound package material that will soak separation drains, to remove most remover;
Clean: the plastic-aluminum paper compound package material with draining, cleaned with water;
Neutralization washing: will clean afterwards and the plastic-aluminum paper compound package material that has separated, and utilize the washing that neutralizes of alkaline neutralization solution;
Carry out drying and classification recycling at last again.
4, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1, it is characterized in that: this remover also includes phosphoric acid solution or acetic acid solution.
5, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1 is characterized in that: the remover concentration of this immersion stripping reaction is 68%, and heating-up temperature is 60 ℃, and the time of immersion is 40 minutes.
6, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1 is characterized in that: the remover concentration of this immersion stripping reaction is 34%, and heating-up temperature is 65 ℃, and the time of immersion is 60 minutes.
7, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1 is characterized in that: the remover concentration of this immersion stripping reaction is 30-34%, and required soak time is 7 hours.
8, the separation and recovery method of plastic-aluminum paper compound package material according to claim 1 is characterized in that: this remover concentration of soaking stripping reaction is 20-30%, and required soak time is 15 hours.
9, a kind of employed remover of separation and recovery method of plastic-aluminum paper compound package material is characterized in that: this remover is for containing the acid solution of nitric acid composition at least.
10, the employed remover of separation and recovery method of plastic-aluminum paper compound package material according to claim 9, it is characterized in that: this remover further includes phosphoric acid solution or acetic acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02142482 CN1401443A (en) | 2002-09-20 | 2002-09-20 | Method and stripping agent for separating and recovering aluminium-plastic paper composite packaging material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02142482 CN1401443A (en) | 2002-09-20 | 2002-09-20 | Method and stripping agent for separating and recovering aluminium-plastic paper composite packaging material |
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| CN1401443A true CN1401443A (en) | 2003-03-12 |
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| CN 02142482 Pending CN1401443A (en) | 2002-09-20 | 2002-09-20 | Method and stripping agent for separating and recovering aluminium-plastic paper composite packaging material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100382901C (en) * | 2007-02-02 | 2008-04-23 | 刘继福 | Process of regenerating waste medicine packing aluminium plastic sheet |
| CN101195687B (en) * | 2007-12-28 | 2010-08-11 | 林峰 | Environment protection decomposition technique for recycling plastic-aluminum, plastic-aluminum paper packing material |
| CN102153778A (en) * | 2011-01-14 | 2011-08-17 | 陕西科技大学 | Recyclable aluminium-plastic separating agent |
| CN102206359A (en) * | 2010-03-31 | 2011-10-05 | 中国环境科学研究院 | Successive separation method of aluminum-plastic composite packaging materials and device thereof |
| CN101891903B (en) * | 2009-05-20 | 2012-04-25 | 中国环境科学研究院 | Method for separating paper plastic-aluminum composite packing waste |
| CN101054779B (en) * | 2006-04-14 | 2012-05-16 | 吴宸澔 | Regeneration method for waste composite paper film |
| CN102671913A (en) * | 2012-05-04 | 2012-09-19 | 张文知 | Comprehensive utilization method for waste aluminum-plastic paper composite packing material |
| CN101759868B (en) * | 2009-12-15 | 2012-10-10 | 巨锋 | Decomposition process of aluminum composite |
| CN101898195B (en) * | 2009-05-27 | 2012-12-26 | 上海林派环保科技有限公司 | Waste aluminium plastic compound packaging material recycling method |
| CN103364482A (en) * | 2013-07-23 | 2013-10-23 | 中国食品药品检定研究院 | Microwave digestion ICP-MS determination method of lead content in drug-packaging-use aluminum foil |
| CN103435838A (en) * | 2013-08-30 | 2013-12-11 | 合肥工业大学 | Quick separating agent of aluminum-plastic composite packaging material and quick separating and recycling method of aluminum-plastic composite packaging material |
| CN107115963A (en) * | 2017-05-15 | 2017-09-01 | 孙起州 | Environment-friendly type paper peeling and separating process |
| CN107415368A (en) * | 2017-04-10 | 2017-12-01 | 滁州卷烟材料厂 | A kind of easily separated recovery cigarette aluminium-foil paper |
| WO2018015492A1 (en) | 2016-07-22 | 2018-01-25 | Centre De Recherches Metallurgiques Asbl - Centrum Voor Research In De Metallurgie Vzw | Production of titrated metallurgical additives for the steel industry, foundries and the non-ferrous sector |
-
2002
- 2002-09-20 CN CN 02142482 patent/CN1401443A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054779B (en) * | 2006-04-14 | 2012-05-16 | 吴宸澔 | Regeneration method for waste composite paper film |
| CN100382901C (en) * | 2007-02-02 | 2008-04-23 | 刘继福 | Process of regenerating waste medicine packing aluminium plastic sheet |
| CN101195687B (en) * | 2007-12-28 | 2010-08-11 | 林峰 | Environment protection decomposition technique for recycling plastic-aluminum, plastic-aluminum paper packing material |
| CN101891903B (en) * | 2009-05-20 | 2012-04-25 | 中国环境科学研究院 | Method for separating paper plastic-aluminum composite packing waste |
| CN101898195B (en) * | 2009-05-27 | 2012-12-26 | 上海林派环保科技有限公司 | Waste aluminium plastic compound packaging material recycling method |
| CN101759868B (en) * | 2009-12-15 | 2012-10-10 | 巨锋 | Decomposition process of aluminum composite |
| CN102206359A (en) * | 2010-03-31 | 2011-10-05 | 中国环境科学研究院 | Successive separation method of aluminum-plastic composite packaging materials and device thereof |
| CN102206359B (en) * | 2010-03-31 | 2013-05-29 | 中国环境科学研究院 | Successive separation method of aluminum-plastic composite packaging materials and device thereof |
| CN102153778A (en) * | 2011-01-14 | 2011-08-17 | 陕西科技大学 | Recyclable aluminium-plastic separating agent |
| CN102153778B (en) * | 2011-01-14 | 2013-01-02 | 陕西科技大学 | Recyclable aluminium-plastic separating agent |
| CN102671913A (en) * | 2012-05-04 | 2012-09-19 | 张文知 | Comprehensive utilization method for waste aluminum-plastic paper composite packing material |
| CN103364482A (en) * | 2013-07-23 | 2013-10-23 | 中国食品药品检定研究院 | Microwave digestion ICP-MS determination method of lead content in drug-packaging-use aluminum foil |
| CN103435838A (en) * | 2013-08-30 | 2013-12-11 | 合肥工业大学 | Quick separating agent of aluminum-plastic composite packaging material and quick separating and recycling method of aluminum-plastic composite packaging material |
| WO2018015492A1 (en) | 2016-07-22 | 2018-01-25 | Centre De Recherches Metallurgiques Asbl - Centrum Voor Research In De Metallurgie Vzw | Production of titrated metallurgical additives for the steel industry, foundries and the non-ferrous sector |
| CN107415368A (en) * | 2017-04-10 | 2017-12-01 | 滁州卷烟材料厂 | A kind of easily separated recovery cigarette aluminium-foil paper |
| CN107115963A (en) * | 2017-05-15 | 2017-09-01 | 孙起州 | Environment-friendly type paper peeling and separating process |
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