CN105778068A - Tonghe PET renewable resource recycling scheme - Google Patents
Tonghe PET renewable resource recycling scheme Download PDFInfo
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- CN105778068A CN105778068A CN201610332252.3A CN201610332252A CN105778068A CN 105778068 A CN105778068 A CN 105778068A CN 201610332252 A CN201610332252 A CN 201610332252A CN 105778068 A CN105778068 A CN 105778068A
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- Prior art keywords
- pet
- bottle
- recycled
- reclaimed materials
- processing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
- C07C29/095—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of esters of organic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/12—Applications used for fibers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Abstract
The invention discloses a Tonghe PET renewable resource recycling scheme and belongs to the technical field of environmental protection. The scheme comprises the following points: (1) combing a PET polymerization process with a silk cotton preparing process; (2) melting, smashing, and processing; (3) filtering and cleaning after EG depolymerization and MeOH decomposition; (4) distilling; (5) carrying out secondary distillation with kettle residue and EG; (6) returning residues into the step (3) to be recycled and processed after the secondary distillation is finished; and (7) carrying out application after recycling, namely PET bottle recycled materials are mainly applied to linen silk fibers and non-woven fabrics in the aspect of fibers, a recycled PET material can be applied to usual melting spinning equipment for processing the fibers. The scheme disclosed by the invention is reasonable in design and is mainly used for producing high added-value recycled PET products; structure upgrading of products of an enterprise is realized, and enterprise competitiveness is improved; meanwhile, attention is paid to environmental problems, secondary pollution is avoided, and economic value is really created while the environmental pollution problem is solved.
Description
Technical field
The present invention relates to environmental technology field, be specifically related to logical PET regenerated resources of closing and recycle scheme.
Background technology
The available resource of the mankind can be divided into two classes: one is non-renewable resources, and two is Renewable resource.Regenerated resources are the one of Renewable resource, be exactly non-renewable be exploited once and scrap in the Activities such as the production of the mankind, life, science and education, traffic, national defence after, also can repeatedly reclaiming the physical resources of processing recycling, it includes being referred to as regenerated resources with mineral for raw material production the iron and steel scrapped, non-ferrous metal, rare metal, alloy, inorganic non-metallic, plastics, rubber, fiber, paper etc..
Ethylene glycol terephthalate (PET) is just to obtain a kind of synthetic material of general development from latter half in the sixties prepared through esterification and polycondensation reaction by p-phthalic acid and ethylene glycol or carry out ester exchange reaction and polycondensation and prepared PET resin by terephthalate and ethylene glycol.The product variety of current PET is also expanded to multiple series several thousand kinds of specifications of hundreds of product such as polyester staple fiber, polyester filament, polyester bottles, mylar, non-weaving cloth, engineering plastics and composite multifunction product by initial polyester staple fiber.Owing to the PET production of polyester that is continuously increased of social need rapidly increases.Since two thousand three the production capacity of the whole world PET speed with average annual about 9% is expanded 2005 annual capacities and has been reached about 54,700,000 tons of yield and reach 67,000,000 tons of yield more than 50,000,000 tons for 41,000,000 tons to 2008 global PET production capacities；China's PET production capacity has become world PET and has produced, consumes the first big country in 2008 more than 20,000,000 tons.
Current PET product is mostly the one-time consumption product thing followed is a large amount of waste PET materials.Not easily occupied big quantity space by air or microbial degradation in the waste PET materials chemistry inertia strong short time and cause " white pollution ".Currently preserving the ecological environment of task very urgent waste PET material is reclaimed for the environmental conservation sustainable development that economizes on resources of great advantage.The regeneration of waste PET carafe not only can reduce environmental pollution but also can turn waste into wealth and therefrom obtain huge economic interests.Reclaim along with the universal PET of non-fibre PET and other packing articles and the technology of reprocessing occurs in a large number.The continuing of current PET package consumer amount, increase rapidly and in the urgent need to increasing the recovery of PET garbage and utilizing PET material recovery technology also to constantly bring forth new ideas.
PET molecular structure high degree of symmetry, has certain crystalline orientation ability, so having higher film property and becoming second nature.PET has good optical property and weatherability, and amorphous PET has good optical transparence.Additionally PET has excellent abrasion performance frictional property and dimensional stability and electrical insulating property.The bottle that PET makes has that intensity is big, the transparency is good, nontoxic, impermeable, light weight, production efficiency are high thus receives and be widely applied.PBT and PET molecular chain structure is similar, and major part character is also the same, and simply molecular backbone is become four by two methylene, so molecule is more compliant, processing characteristics is more excellent.
PET is milky or the polymer of light yellow highly crystalline, and surface is smooth and glossy.Resistance to creep, fatigue resistance, rub resistance are good, wear away little and hardness is high, have toughness maximum in thermoplastic;Electrical insulation capability is good, and temperature influence is little, but corona resistance is poor.Nontoxic, against weather, chemical proof good stability, hygroscopicity is high, and dry before molding is necessary.Weak acid resistant and organic solvent, but thermo-labile water soaking are not alkaline-resisting
The more variation of scheme that existing PET regenerated resources recycle, but do not have uniformity, when putting into practice, there is a lot of drawback, impurity is many, and degradation rate is low, and cost is high, can cause certain environmental pollution, the health of operator can be caused certain injury.
Summary of the invention
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of logical conjunction PET regenerated resources reasonable in design, that practice is convenient, efficiency is high and cost is low and recycles scheme.
The present invention logical conjunction PET regenerated resources recycle scheme, it comprise following some:
1, the combination of PET polymerization process and throwing cotton process；
2, happy and harmonious grinding and processing；
3, EG depolymerization, MeOH are filtered after decomposing cleaning process；
4, distillation processes；
5, EG residual by still carries out second distillation process；
6, after distillation processes, residue return does not know to recirculate in 3 processing；
7, the application after reclaiming: in PET bottle reclaimed materials is mainly used in flax silk fiber and non-woven fabrics in fiber, regenerative PET material is usable in common apparatus for melt spinning to process fiber；PET bottle reclaimed materials can prepare noncrystalline PET sheet, single or multiple lift food containers, packaging band and corrugated sunshade cage etc.；The sheet properties of PET bottle reclaiming manufacture of materials can be used for the PVC sheet used by industrial thermoforming package；The foam sheet produced with PET bottle reclaimed materials also acts as insulant；Regenerative PET its moulding after the grave material such as glass fibre strengthen can be used for automobile, household electrical appliance and computer；Alloy can make the application that PET bottle reclaimed materials realizes high added value adopt PET reclaimed materials blended to PC and can obtain the PC alloy similar to ABS character after thickening and toughness reinforcing process with composite；
8, regenerated resources performance is improved: hydrolysis may result in PET viscosity degradation so that bottle cannot be blow molded into for a small amount of aquiform stool more much bigger than pure material that affect of recycled PET material；The hydrolysis that in recycled PET material, residual moisture causes is a step the fastest in degraded, and the traditional method dewatered is to adopt special desiccant to process before processing；PET can be produced color stain by the pigment in colored bottle；Transparent PET bottle carries out the manual added value aspect that can remove green small pieces raising reconstituted product that separates sometimes with green small pieces can improve from many aspects；" alloying " is the important channel improving polymer performance to add reinforcing agent, solubilizing agent and additive mixing alloying extrusion molding again may be made with the polymer alloy of certain characteristic by grinding after the waste plastic disassembling of non-classified；As moisture resistance, corrosion-resistant in various " plastics lumber " product.
Beneficial effects of the present invention: conceptual design is reasonable, the PET products again producing high added value more；The product structure upgrading realizing enterprise improves enterprise competitiveness；Note environmental problem, it is to avoid secondary pollution simultaneously, be truly realized and can determine again problem of environmental pollution creating economic worth simultaneously.
Detailed description of the invention
This detailed description of the invention is by the following technical solutions: it comprise following some:
1, the combination of PET polymerization process and throwing cotton process；
2, happy and harmonious grinding and processing；
3, EG depolymerization, MeOH are filtered after decomposing cleaning process；
4, distillation processes；
5, EG residual by still carries out second distillation process；
6, after distillation processes, residue return does not know to recirculate in 3 processing；
7, the application after reclaiming: in PET bottle reclaimed materials is mainly used in flax silk fiber and non-woven fabrics in fiber, regenerative PET material is usable in common apparatus for melt spinning to process fiber；PET bottle reclaimed materials can prepare noncrystalline PET sheet, single or multiple lift food containers, packaging band and corrugated sunshade cage etc.；The sheet properties of PET bottle reclaiming manufacture of materials can be used for the PVC sheet used by industrial thermoforming package；The foam sheet produced with PET bottle reclaimed materials also acts as insulant；Regenerative PET its moulding after the grave material such as glass fibre strengthen can be used for automobile, household electrical appliance and computer；Alloy can make the application that PET bottle reclaimed materials realizes high added value adopt PET reclaimed materials blended to PC and can obtain the PC alloy similar to ABS character after thickening and toughness reinforcing process with composite；
8, regenerated resources performance is improved: hydrolysis may result in PET viscosity degradation so that bottle cannot be blow molded into for a small amount of aquiform stool more much bigger than pure material that affect of recycled PET material；The hydrolysis that in recycled PET material, residual moisture causes is a step the fastest in degraded, and the traditional method dewatered is to adopt special desiccant to process before processing；PET can be produced color stain by the pigment in colored bottle；Transparent PET bottle carries out the manual added value aspect that can remove green small pieces raising reconstituted product that separates sometimes with green small pieces can improve from many aspects；" alloying " is the important channel improving polymer performance to add reinforcing agent, solubilizing agent and additive mixing alloying extrusion molding again may be made with the polymer alloy of certain characteristic by grinding after the waste plastic disassembling of non-classified；As moisture resistance, corrosion-resistant in various " plastics lumber " product.
Beneficial effects of the present invention: conceptual design is reasonable, the PET products again producing high added value more；The product structure upgrading realizing enterprise improves enterprise competitiveness；Note environmental problem, it is to avoid secondary pollution simultaneously, be truly realized and can determine again problem of environmental pollution creating economic worth simultaneously.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (1)
1. logical PET regenerated resources of closing recycle scheme, it is characterised in that it comprise following some:
(1), the combination of PET polymerization process and throwing cotton process；
(2), happy and harmonious grinding and processing；
(3), EG depolymerization, MeOH are filtered after decomposing cleaning process；
(4), distillation processes；
(5), EG residual by still carries out second distillation process；
(6) after, distillation processes, residue return does not know to recirculate in (3) processing；
(7) application after, reclaiming: in PET bottle reclaimed materials is mainly used in flax silk fiber and non-woven fabrics in fiber, regenerative PET material is usable in common apparatus for melt spinning to process fiber；PET bottle reclaimed materials can prepare noncrystalline PET sheet, single or multiple lift food containers, packaging band and corrugated sunshade cage etc.；The sheet properties of PET bottle reclaiming manufacture of materials can be used for the PVC sheet used by industrial thermoforming package；The foam sheet produced with PET bottle reclaimed materials also acts as insulant；Regenerative PET its moulding after the grave material such as glass fibre strengthen can be used for automobile, household electrical appliance and computer；Alloy can make the application that PET bottle reclaimed materials realizes high added value adopt PET reclaimed materials blended to PC and can obtain the PC alloy similar to ABS character after thickening and toughness reinforcing process with composite；
(8) regenerated resources performance, is improved: hydrolysis may result in PET viscosity degradation so that bottle cannot be blow molded into for a small amount of aquiform stool more much bigger than pure material that affect of recycled PET material；The hydrolysis that in recycled PET material, residual moisture causes is a step the fastest in degraded, and the traditional method dewatered is to adopt special desiccant to process before processing；PET can be produced color stain by the pigment in colored bottle；Transparent PET bottle carries out the manual added value aspect that can remove green small pieces raising reconstituted product that separates sometimes with green small pieces can improve from many aspects；" alloying " is the important channel improving polymer performance to add reinforcing agent, solubilizing agent and additive mixing alloying extrusion molding again may be made with the polymer alloy of certain characteristic by grinding after the waste plastic disassembling of non-classified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332252.3A CN105778068A (en) | 2016-05-19 | 2016-05-19 | Tonghe PET renewable resource recycling scheme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332252.3A CN105778068A (en) | 2016-05-19 | 2016-05-19 | Tonghe PET renewable resource recycling scheme |
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| Publication Number | Publication Date |
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| CN105778068A true CN105778068A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610332252.3A Pending CN105778068A (en) | 2016-05-19 | 2016-05-19 | Tonghe PET renewable resource recycling scheme |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116623369A (en) * | 2023-05-16 | 2023-08-22 | 扬州广泰化纤有限公司 | High oil absorption material based on polyester bottle flake regenerated fiber and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571810A (en) * | 2001-10-16 | 2005-01-26 | 帝人株式会社 | Method for recycling pet bottle |
| CN102250449A (en) * | 2011-06-27 | 2011-11-23 | 沈阳化工大学 | Process for synthesizing saturated polyester resin by using recycled terephthalic acid |
| CN102505175A (en) * | 2011-10-20 | 2012-06-20 | 江苏盛虹科技股份有限公司 | Regenerated terylene filament and preparation method thereof |
-
2016
- 2016-05-19 CN CN201610332252.3A patent/CN105778068A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571810A (en) * | 2001-10-16 | 2005-01-26 | 帝人株式会社 | Method for recycling pet bottle |
| CN102250449A (en) * | 2011-06-27 | 2011-11-23 | 沈阳化工大学 | Process for synthesizing saturated polyester resin by using recycled terephthalic acid |
| CN102505175A (en) * | 2011-10-20 | 2012-06-20 | 江苏盛虹科技股份有限公司 | Regenerated terylene filament and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116623369A (en) * | 2023-05-16 | 2023-08-22 | 扬州广泰化纤有限公司 | High oil absorption material based on polyester bottle flake regenerated fiber and preparation method thereof |
| CN116623369B (en) * | 2023-05-16 | 2023-10-31 | 扬州广泰化纤有限公司 | High oil absorption material based on polyester bottle flake regenerated fiber and preparation method thereof |
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Application publication date: 20160720 |