CN113231387A - Chemical method for lossless recovery of fiber optical element - Google Patents
Chemical method for lossless recovery of fiber optical element Download PDFInfo
- Publication number
- CN113231387A CN113231387A CN202110513173.3A CN202110513173A CN113231387A CN 113231387 A CN113231387 A CN 113231387A CN 202110513173 A CN202110513173 A CN 202110513173A CN 113231387 A CN113231387 A CN 113231387A
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- China
- Prior art keywords
- optical element
- fiber optical
- fiber optic
- fiber
- parts
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- 239000000835 fiber Substances 0.000 title claims abstract description 138
- 230000003287 optical effect Effects 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000000126 substance Substances 0.000 title claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 54
- 239000003513 alkali Substances 0.000 claims abstract description 28
- 238000004064 recycling Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- 238000002791 soaking Methods 0.000 claims description 15
- 230000001066 destructive effect Effects 0.000 claims description 14
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 14
- 239000010931 gold Substances 0.000 claims description 14
- 229910052737 gold Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000001311 chemical methods and process Methods 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- -1 polyoxyethylene octylphenol Polymers 0.000 claims description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 239000008139 complexing agent Substances 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 claims description 4
- 150000007530 organic bases Chemical class 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 229940080258 tetrasodium iminodisuccinate Drugs 0.000 claims description 4
- GYBINGQBXROMRS-UHFFFAOYSA-J tetrasodium;2-(1,2-dicarboxylatoethylamino)butanedioate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CC(C([O-])=O)NC(C([O-])=O)CC([O-])=O GYBINGQBXROMRS-UHFFFAOYSA-J 0.000 claims description 4
- RZXLPPRPEOUENN-UHFFFAOYSA-N Chlorfenson Chemical compound C1=CC(Cl)=CC=C1OS(=O)(=O)C1=CC=C(Cl)C=C1 RZXLPPRPEOUENN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- VCWJPGQFVGJLQJ-UHFFFAOYSA-N methyl octadecanoate;sodium Chemical compound [Na].CCCCCCCCCCCCCCCCCC(=O)OC VCWJPGQFVGJLQJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 8
- 239000003518 caustics Substances 0.000 claims 2
- 239000012670 alkaline solution Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- LQPLDXQVILYOOL-UHFFFAOYSA-I pentasodium;2-[bis[2-[bis(carboxylatomethyl)amino]ethyl]amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC(=O)[O-])CCN(CC([O-])=O)CC([O-])=O LQPLDXQVILYOOL-UHFFFAOYSA-I 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 15
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 238000005235 decoking Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- VKTHZHSHTVVWPN-UHFFFAOYSA-N [Na].[Na].[Na].[Na].[Na].CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.NCCNCCN Chemical compound [Na].[Na].[Na].[Na].[Na].CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.NCCNCCN VKTHZHSHTVVWPN-UHFFFAOYSA-N 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- HPEUJPJOZXNMSJ-UHFFFAOYSA-N Methyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC HPEUJPJOZXNMSJ-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- BDOYKFSQFYNPKF-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O BDOYKFSQFYNPKF-UHFFFAOYSA-N 0.000 description 1
- MMKZAICYSVWBPW-UHFFFAOYSA-N 2-[[2-(difluoromethoxy)phenyl]methylamino]-1-[3-(trifluoromethyl)phenyl]ethanol Chemical group C=1C=CC(C(F)(F)F)=CC=1C(O)CNCC1=CC=CC=C1OC(F)F MMKZAICYSVWBPW-UHFFFAOYSA-N 0.000 description 1
- UXYAJXBVMZFRMS-UHFFFAOYSA-N 2-hydroxy-1,3,2$l^{5}-dioxaphosphepane 2-oxide Chemical compound OP1(=O)OCCCCO1 UXYAJXBVMZFRMS-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- FVHDFHJJJGWAFT-UHFFFAOYSA-N [Na].[Na].[Na].[Na].OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O Chemical compound [Na].[Na].[Na].[Na].OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O FVHDFHJJJGWAFT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- CAMHHLOGFDZBBG-UHFFFAOYSA-N epoxidized methyl oleate Natural products CCCCCCCCC1OC1CCCCCCCC(=O)OC CAMHHLOGFDZBBG-UHFFFAOYSA-N 0.000 description 1
- BEGBSFPALGFMJI-UHFFFAOYSA-N ethene;sodium Chemical group [Na].C=C BEGBSFPALGFMJI-UHFFFAOYSA-N 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- LDHWPRMNOXDSQG-UHFFFAOYSA-K trisodium 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O.OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O LDHWPRMNOXDSQG-UHFFFAOYSA-K 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/361—Phosphonates, phosphinates or phosphonites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C11D2111/14—
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
A chemical method for nondestructively recovering a fiber optical element relates to the technical field of separation and recovery of optical elements, and adopts alkali liquor and cleaning solution to alternately soak the fiber optical element to be recovered so as to separate and recover the fiber optical element. The alkali liquor and the cleaning liquid can be reused, and the cost of the whole operation method is extremely low. In addition, the whole process does not involve high-temperature heating, the recycled fiber optical element has no newly added stress, the recycling rate is high, and the sealing processing after the recycling of the fiber optical element is facilitated.
Description
Technical Field
The invention relates to the technical field of optical element separation and recovery, in particular to a chemical method for nondestructively recovering a fiber optical element.
Background
Fiber optics is a branch of science developed from the recent optical field in recent decades, and an optical fiber image transmission element is a typical element of fiber optics, has the characteristics of light transmission and image transmission, has the advantages of zero thickness, good light collection performance, high resolution, distortion-free image transmission and the like compared with common glass and lens systems, and is widely applied to the fields of light and image transmission, visual information transmission and the like.
The hard fiber image-transmitting element is composed of a large amount of core glass with high refractive index, cladding glass with low refractive index and light-absorbing glass material. The hard optical fiber element with a certain thickness is formed by combined drawing, arrangement, fusion pressing, twisting or stretching of material glass. Representative rigid fiber optic image transmitting elements include fiber optic faceplates, fiber optic image inverters, and fiber optic cones.
At present, in the sealing process of the fiber optical element, products with quality problems are generated more or less. If the waste is directly discarded, not only is economic loss caused, but also the formed waste can cause environmental pollution. Therefore, the invention provides a method for rapidly, efficiently and nondestructively recovering the fiber optical element, which is of great significance.
Disclosure of Invention
The invention aims to provide a chemical method for recovering a fiber optical element without damage, which is simple to operate and convenient to use, can realize the rapid recovery of the fiber optical element on the premise of not damaging the fiber optical element, and reduces the production cost and the environmental problems.
The embodiment of the invention is realized by the following steps:
a chemical process for non-destructive recycling of fiber optic components, comprising:
s1, soaking the fiber optical element to be recovered in alkali liquor;
s2, cleaning the fiber optical element soaked in the alkali liquor, placing the fiber optical element into a cleaning solution, and continuously soaking the fiber optical element under the ultrasonic condition;
s3, cleaning the fiber optical element soaked in the cleaning solution, and then putting the fiber optical element into the alkali liquor again to soak the fiber optical element until the fiber optical element is separated.
The embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides a chemical method for nondestructively recovering a fiber optical element, which adopts alkali liquor and cleaning solution to alternately soak the fiber optical element to be recovered so as to separate and recover the fiber optical element. The alkali liquor and the cleaning liquid can be reused, and the cost of the whole operation method is extremely low. In addition, the whole process does not involve high-temperature heating, the recycled fiber optical element has no newly added stress, the recycling rate is high, and the sealing processing after the recycling of the fiber optical element is facilitated.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The chemical method for the nondestructive recovery of a fiber optic element of the embodiment of the present invention will be specifically described below.
The present embodiment provides a chemical method for non-destructive recycling of a fiber optic component, comprising:
s1, soaking the fiber optical element to be recovered in alkali liquor;
s2, cleaning the fiber optical element soaked in the alkali liquor, placing the fiber optical element into a cleaning solution, and continuously soaking the fiber optical element under the ultrasonic condition;
s3, cleaning the fiber optical element soaked in the cleaning solution, and then putting the fiber optical element into the alkali liquor again to soak the fiber optical element until the fiber optical element is separated.
At present, in the sealing process of the fiber optical element, products with quality problems are generated more or less. If the waste is directly discarded, not only is economic loss caused, but also the formed waste can cause environmental pollution. The recovery method in the prior art adopts high temperature of about 600 ℃ to separate fiber optical elements, the fiber optical elements need to be heated to a temperature point at a constant speed in an air circulation furnace, then the fiber optical elements are separated at a constant temperature for a period of time, then the elements are subjected to long-time precise annealing, cooling and other processes so as to achieve the purpose of separation, the separated elements are simply soaked by using solution, then the mechanical processing (including upper and lower bottom surface polishing and cylindrical surface processing) is carried out to remove glass powder solder and gold paste residues on the surfaces, and the elements are sealed and utilized at high temperature again after being qualified. However, in this method, since high-temperature separation is adopted, new thermal stress is easily generated in the process, and in the process of recycling after separation, cracking or cracking is easily generated when the component is sealed at high temperature again, and the recycling yield is low. The recovery process is complex and long, and the original process needs to use an air circulation furnace to heat, anneal and cool the element for a long time, so the cost is high. In addition, the glass powder solder at the sealing part of the element is seriously solidified by adopting high-temperature separation, so that the adhesion to the element is tighter, and the surface quality of the element is poorer. In view of the above problems, embodiments of the present invention provide a chemical method for recovering a fiber optic component without damage, without requiring high-temperature treatment.
Furthermore, the alkali liquor adopted in the embodiment of the invention is a solution of sodium hydroxide or potassium hydroxide, and the concentration of the alkali liquor is 5-20 wt%. The time for soaking in the alkali liquor each time is 2-3 days. The alkali liquor can be reused, but as the use times increase, the alkali in the alkali liquor is gradually consumed, and if the concentration is reduced to be below 5 wt%, the separation efficiency is obviously reduced, and at the moment, the alkali needs to be supplemented to reach the proper concentration.
Further, the cleaning solution comprises the following components in parts by weight:
20-50 parts of metal ion complexing agent, 10-20 parts of organic base, 5-10 parts of surfactant, 2-5 parts of stabilizer and 50-100 parts of water.
Wherein the metal ion complexing agent comprises at least one of disodium ethylene diamine tetraacetate, tetrasodium iminodisuccinate, pentasodium diethylenetriamine pentaacetic acid and sodium ethylene diamine tetra-methylene phosphate; the organic base comprises at least one of ethanolamine, diethanolamine and triethanolamine; the surfactant comprises at least one of sodium dodecyl benzene sulfonate, fatty alcohol ether sodium sulfate, polyoxyethylene octylphenol ether, polyoxyethylene lauryl ether, branched isomeric alcohol ether and sodium methyl stearate polyoxyethylene ether sulfonate; the stabilizer comprises polyethylene glycol.
The matching and alternate use of the cleaning solution and the alkali liquor is the key point that the invention can realize the optical fiber element without high-temperature separation. The cleaning liquid can be reused like alkali liquor, thereby reducing the cost. The cleaning solution is diluted by 10-50 times with water before use, the ultrasonic frequency is 40-59 kHz, the ultrasonic time is 5-15 min, and after the ultrasonic treatment is finished, the fiber optical element is continuously soaked in the cleaning solution for 60-90 min. The cleaning liquid has too high concentration and too long soaking time, which can cause certain damage to the surface of the fiber optical element, and when the concentration of the cleaning liquid is too low, the separation effect can not be achieved.
Further, a chemical method for nondestructive recovery of a fiber optic component according to an embodiment of the present invention further includes:
and if the fiber optical element is not separated after being soaked in the alkali liquor in the step S3, repeating the steps S2 and S3 in sequence until the fiber optical element is separated.
Because the processing technology of each fiber optical element is not absolutely consistent, the problems are not completely the same, and in the process of soaking, the fiber optical elements still cannot be separated after the steps from S1 to S3 are finished. If the soaking time is prolonged, the expected effect cannot be achieved, and the steps S2 and S3 can be repeated to separate the fiber optical elements.
Further, a chemical method for nondestructive recovery of a fiber optic component according to an embodiment of the present invention further includes:
s4, the separated fiber optic element is cleaned, and the cylindrical gold paste on the surface of the fiber optic element is removed by using a gold removing liquid.
Optionally, the gold stripping solution is cyanide-free gold stripping solution. Selecting cyanide-free gold stripping liquid sold in the market.
Further, a chemical method for nondestructive recovery of a fiber optic component according to an embodiment of the present invention further includes:
s5, polishing the fiber optical element treated by the decoking solution, cleaning, detecting and recovering.
Specifically, the upper bottom surface and the lower bottom surface of the fiber optical element are polished until the technical parameters of the upper bottom surface and the lower bottom surface meet the technical index requirements, and then are cleaned by using absolute ethyl alcohol and are detected and recovered.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The present embodiment provides a chemical method for non-destructive recycling of fiber optic components, comprising the steps of:
s1, wiping the surface of the fiber optical element to be recovered with absolute ethyl alcohol and cleaning.
S2, the wiped fiber optic element was immersed in a 5 wt% sodium hydroxide solution for 3 days.
S2, cleaning the fiber optical element soaked in the sodium hydroxide solution by using deionized water, placing the fiber optical element into cleaning solution diluted by 10 times by using the deionized water, oscillating the fiber optical element for 5 min in 59 kHz ultrasonic wave, and continuously soaking the fiber optical element in the cleaning solution for 90 min;
wherein, according to the weight portion, the cleaning solution comprises:
5 parts of ethylene diamine tetraacetic acid disodium, 7 parts of iminodisuccinic acid tetrasodium, 8 parts of diethylene triamine pentaacetic acid pentasodium, 10 parts of ethanolamine, 10 parts of diethanolamine, 3 parts of sodium dodecyl benzene sulfonate, 5 parts of fatty alcohol ether sodium sulfate, 2 parts of octylphenol polyoxyethylene ether, 2 parts of polyethylene glycol and 50 parts of water.
S3, cleaning the fiber optical element soaked in the cleaning solution, and then putting the fiber optical element into 5 wt% sodium hydroxide solution again to soak until the fiber optical element is separated.
S4, the separated fiber optic element is cleaned, and the cylindrical gold paste on the surface of the fiber optic element is removed by using a gold removing liquid.
S5, polishing the fiber optical element treated by the decoking solution, cleaning, detecting and recovering.
Example 2
The present embodiment provides a chemical method for non-destructive recycling of fiber optic components, comprising the steps of:
s1, wiping the surface of the fiber optical element to be recovered with absolute ethyl alcohol and cleaning.
S2, the wiped fiber optic element is soaked in a 20 wt% sodium hydroxide solution for 2 days.
S2, cleaning the fiber optical element soaked in the sodium hydroxide solution by using deionized water, placing the fiber optical element into cleaning solution diluted by 50 times by using the deionized water, oscillating the fiber optical element for 15 min in 59 kHz ultrasonic wave, and continuously soaking the fiber optical element in the cleaning solution for 60 min;
wherein, according to the weight portion, the cleaning solution comprises:
20 parts of tetrasodium iminodisuccinate, 15 parts of pentasodium diethylenetriamine pentaacetic acid, 15 parts of ethylene diamine tetramethylene sodium phosphate, 10 parts of triethanolamine, 3 parts of branched isomeric alcohol ether, 2 parts of methyl stearate polyoxyethylene ether sodium sulfonate, 5 parts of polyethylene glycol and 100 parts of water.
S3, cleaning the fiber optical element soaked in the cleaning solution, and then putting the fiber optical element into 20 wt% sodium hydroxide solution again to soak until the fiber optical element is separated.
S4, the separated fiber optic element is cleaned, and the cylindrical gold paste on the surface of the fiber optic element is removed by using a gold removing liquid.
S5, polishing the fiber optical element treated by the decoking solution, cleaning, detecting and recovering.
Example 3
The present embodiment provides a chemical method for non-destructive recycling of fiber optic components, comprising the steps of:
s1, wiping the surface of the fiber optical element to be recovered with absolute ethyl alcohol and cleaning.
S2, the wiped fiber optic element was immersed in a 10 wt% potassium hydroxide solution for 2 days.
S2, cleaning the fiber optical element soaked in the sodium hydroxide solution by using deionized water, placing the fiber optical element into a cleaning solution diluted by 20 times by using the deionized water, oscillating the fiber optical element in ultrasonic waves of 40 kHz for 10 min, and continuously soaking the fiber optical element in the cleaning solution for 80 min;
wherein, according to the weight portion, the cleaning solution comprises:
10 parts of disodium ethylene diamine tetraacetate, 8 parts of tetrasodium iminodisuccinate, 7 parts of pentasodium diethylenetriamine pentaacetic acid, 5 parts of ethylene diamine tetraacetic acid sodium phosphate, 10 parts of diethanolamine, 6 parts of triethanolamine, 3 parts of fatty alcohol ether sodium sulfate, 2 parts of polyoxyethylene lauryl ether, 2 parts of sodium methyl stearate polyoxyethylene ether sulfonate, 3 parts of polyethylene glycol and 80 parts of water.
S3, cleaning the fiber optical element soaked in the cleaning solution, and then soaking the fiber optical element in 10 wt% potassium hydroxide solution until the fiber optical element is separated.
S4, the separated fiber optic element is cleaned, and the cylindrical gold paste on the surface of the fiber optic element is removed by using a gold removing liquid.
S5, polishing the fiber optical element treated by the decoking solution, cleaning, detecting and recovering.
Comparative example 1
This comparative example provides a chemical method of recycling a fiber optic component that eliminates the use of cleaning agents based on example 3. Finally, it was found that the fiber optic element could not be separated without using a cleaning agent even if the immersion time of the alkali solution was extended to 10 days. Indicating that the expected separation effect cannot be achieved by using the alkali liquor only.
Comparative example 2
This comparative example provides a chemical method of recycling a fiber optic component that eliminates the use of cleaning agents based on example 3. Finally, it was found that, in the case of cleaning alone, separation was not completed after 3 hours of immersion, and after further 24 hours of immersion, the fiber optic element was not completely separated and the surface was severely damaged.
Test examples
The fiber optical elements were separated at high temperature by the method of example 3 of the present invention and the method of ZL202011539169.6 (comparative example 3), and 140 fiber optical elements were separated by each of the two methods, and the yields of the two were statistically compared, and the statistical results are shown in table 1.
TABLE 1 comparison of yields of recycled fiber optic components
| Number of good products | Yield of good products | |
| Example 3 | 26 | 18.6% |
| Comparative example 3 | 72 | 51.4% |
As can be seen from table 1, the recycling method of the embodiment of the present invention effectively avoids adding new stress without using high temperature, and the yield of the recycled fiber optical component is significantly increased. Through repeated attempts of the inventor, the yield of high-temperature separation is about 10-30%, and the yield of the recovery method is about 50-70%. Calculated by 6000 recycled in each month, the previously qualified quantity is only 1800 plus 600, and can be increased to 3000 plus 4200. The recycled products are calculated according to 150 yuan per count, and the monthly output value is improved from 9-27 ten thousand yuan to 45-63 ten thousand yuan. And because the component is recycled, the number of newly purchased components can be correspondingly reduced, and the purchasing expenditure is reduced.
In addition, when the air circulation furnace used for high-temperature separation is used, the average power is about 6 KW/h, 2 devices are used for 5 periods per month, each separation annealing period is 5 days, and electricity is needed: 6KW is multiplied by 5 days, multiplied by 24 hours, multiplied by 5 times, multiplied by 2 stations =7200 degrees, each degree of electricity is calculated according to 1 yuan, and the electricity fee is 7200 yuan in total. The recycling cost can be reduced to 7000-8000 yuan per month, and the annual recycling cost is saved to 8.4-9.6 ten thousand yuan. Meanwhile, the average recovery period of the recovery method of high-temperature separation is 12-15 days each time, and the recovery method only needs 7-10 days, so that the recovery period is greatly shortened.
In summary, the embodiments of the present invention provide a chemical method for non-destructive recovery of a fiber optical element, in which an alkali solution and a cleaning solution are alternately soaked in a fiber optical element to be recovered, so that the fiber optical element can be separated and recovered. The alkali liquor and the cleaning liquid can be reused, and the cost of the whole operation method is extremely low. In addition, the whole process does not involve high-temperature heating, the recycled fiber optical element has no newly added stress, the recycling rate is high, and the sealing processing after the recycling of the fiber optical element is facilitated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A chemical process for non-destructive recycling of fiber optic components, comprising:
s1, soaking the fiber optical element to be recovered in alkali liquor;
s2, cleaning the fiber optical element soaked in the alkali liquor, placing the fiber optical element into a cleaning solution, and continuously soaking the fiber optical element under the ultrasonic condition;
s3, after the fiber optical element soaked in the cleaning solution is cleaned, the fiber optical element is placed in the alkali liquor again to be soaked until the fiber optical element is separated.
2. A chemical process for the non-destructive recycling of fiber optic components according to claim 1, wherein said caustic solution is a solution of sodium hydroxide or potassium hydroxide, and the concentration of said caustic solution is 5 wt% to 20 wt%.
3. A chemical process for the non-destructive recovery of a fiber optic component according to claim 2, wherein each soaking in said alkaline solution is carried out for 2 to 3 days.
4. A chemical process for the non-destructive recycling of fiber optic components according to claim 1, wherein said cleaning solution comprises, in parts by weight:
20-50 parts of metal ion complexing agent, 10-20 parts of organic base, 5-10 parts of surfactant, 2-5 parts of stabilizer and 50-100 parts of water.
5. The chemical process for the non-destructive recovery of a fiber optic component according to claim 4, wherein said metal ion complexing agent comprises at least one of disodium ethylenediaminetetraacetate, tetrasodium iminodisuccinate, pentasodium diethylenetriaminepentaacetate, and sodium ethylenediaminetetramethylenephosphate; the organic base comprises at least one of ethanolamine, diethanolamine and triethanolamine; the surfactant comprises at least one of sodium dodecyl benzene sulfonate, fatty alcohol ether sodium sulfate, polyoxyethylene octylphenol ether, polyoxyethylene lauryl ether, branched isomeric alcohol ether and sodium methyl stearate polyoxyethylene ether sulfonate; the stabilizer comprises polyethylene glycol.
6. The chemical method for nondestructive recovery of a fiber optic component according to claim 5, wherein the cleaning solution is diluted by 10 to 50 times with water before use, the frequency of ultrasonic is 40 to 59 kHz, the duration of ultrasonic is 5 to 15 min, and after the ultrasonic is finished, the fiber optic component is further immersed in the cleaning solution for 60 to 90 min.
7. A chemical process for the non-destructive recycling of fiber optic components according to claim 1, further comprising:
and if the fiber optical elements are not separated after being soaked in the alkali liquor in the step S3, repeating the steps S2 and S3 in sequence until the fiber optical elements are separated.
8. A chemical process for the non-destructive recycling of fiber optic components according to claim 1, further comprising:
s4, the separated fiber optical element is cleaned, and cylindrical gold paste on the surface of the fiber optical element is removed by using a gold removing liquid.
9. A chemical method for nondestructive recovery of a fiber optic component according to claim 8 wherein said de-gilding liquid is a cyanide-free de-gilding liquid.
10. The chemical process for non-destructive recycling of fiber optic components according to claim 9, further comprising:
and S5, polishing the fiber optical element treated by the metal removing liquid, cleaning, detecting and recovering.
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