[China Aluminum Industry Network] 1. A method for separating fiber and aluminum foil from aluminum foil liner waste
The present invention relates to a method for separating fibers and aluminum foil from aluminum foil liners using water, which in turn includes the following steps:
a, aluminum foil liner waste into the turbulent state of the water, so that aluminum foil liner disintegration, the formation of a mixture of slurry; b, the mixture slurry diluted with water to become a rare mixture slurry;
c. The thin mixed slurry forms a swirling flow, from which aluminum foil is separated, and the remaining slurry is a thin slurry;
d. The thin slurry is filtered and rolled to remove excess water to obtain a good slurry. The method does not shorten the fiber length, can produce good slurry, has no dust pollution, and is beneficial to environmental protection. The recovery rate of the aluminum foil is high, the purity of the aluminum foil is high, and the particles are uniform.
2. An "abstract" method for separation and recycling of aluminum-plastic composite packaging waste
The invention relates to a method for separating and recycling aluminum-plastic composite package wastes. 800-1000 kilograms of a treatment solution is placed in a reaction kettle. The process solution is prepared from water and caustic soda at a weight ratio of 5000:1, and a heating device is started to heat the process solution. To 80 °C -100 °C, the aluminum-plastic composite packaging waste into the reactor for 1-2 hours for solution treatment, the waste after treatment of the solution into a primary separator for separation ball processing, by After the first-stage treatment, the mixture is put into a selective separator for selective treatment. The spheroidization diameter is 2-5 mm, and the waste after the selective treatment is subjected to a classification treatment with a 10-20 mesh screen.
3, the separation and recovery of aluminum plastic paper composite packaging materials and stripping agent "abstract"
A separation and recovery method for aluminum-plastic paper composite packaging material and a stripping agent thereof are mainly used for impregnating and infiltrating aluminum-plastic paper composite packaging materials by using an acidic solution containing nitric acid, and aluminum oxidation of joints of aluminum-plastic composite packaging materials. The layers are separated and dissolved to achieve the separation of the plastic material layer or the paper material layer and the aluminum layer in the aluminum-plastic paper composite packaging material, so as to facilitate recycling of various useful materials such as aluminum foil, plastic, or paper stock.
4. An "abstract" method for separating aluminum foil and plastic film from scrap aluminum film
A method for separating aluminum foil and plastic film from scrap aluminum film belongs to a method for treating industrial and domestic garbage, avoiding environmental pollution, recycling aluminum foil and plastic film in waste aluminum film, and turning waste into treasure. Mainly after soaking in cold water, the solvent prepared from tetrahydroanthraquinone, tetrahydrofuran and glacial acetic acid is automatically separated in cold water after being soaked in the reaction kettle for a long period of time. At present, there are more than 10,000 tons of aluminum film used for packing tablets in pharmaceutical companies across the country. The previous treatment method was incineration or landfill. If the method of the present invention is used, it can create annual profits and taxes of more than 76 million yuan, which can be created. There are more than 6,000 job opportunities. No industrial wastewater or waste gas will be generated during the separation process. This will not only avoid pollution to the atmosphere after burning or landfill, but also produce good economic and social benefits. The method is simple and easy to learn, the solvent can be recycled, the processing cost is low, and it is suitable for separating various waste aluminum films.
5. Environmentally-friendly fast aluminum-aluminum aluminum sheet separating agent and separation process "abstract"
The separating agent consists of an (emulsifying) surfactant, a solvent, a metal salt, and water. According to the different characteristics of the material to be separated, it is divided into aluminum-plastic sheet separating agent, aluminum-plastic plate separating agent and aluminum paper separating agent. The quality of aluminum, plastic and paper after separation is almost unchanged. The separating agent can be used for all composite aluminum and plastic and paper composite packaging materials. The separation production process is to smash the material to be separated and immersed in the corresponding separating agent to control the temperature. In a certain period of time, the aluminum foil can be automatically separated from the plastic and the paper, and the special material is properly stirred when immersed. After cleaning the sorting package, it becomes a reusable material. In other words, environmental pollution is reduced, waste becomes treasure, and production equipment is simple, investment is small, and it is easy to promote in a large area.
6, an aluminum foil aluminum paper separation method "abstract"
The invention relates to a method for separating aluminum foil aluminum paper, belonging to the technical field of solid waste separation and metal recovery. The present invention can use cheap waste aluminum foil as a raw material, put it into a pulverizer to mechanically pulverize to obtain a mechanical mixture of aluminum particles and shredded paper; then the mixture is put into a screening device, and a slightly larger shredded paper is separated due to the screening effect. Chips; Due to the winnowing action, aluminum particles and smaller shreds are separated. The method of the invention is simple and reliable, the raw materials are fully utilized, the equipment investment is less, and the energy consumption is less. The separated aluminum particles and shredded paper can be further processed into aluminum powder and pulp, which can save a large amount of pure aluminum and papermaking raw materials. The resulting product has low cost, high economic benefits, and no pollution of three wastes.
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