KR20230077168A - 고순도의 비닐리덴 플루오라이드 제조를 위한 장치 및 방법 - Google Patents
고순도의 비닐리덴 플루오라이드 제조를 위한 장치 및 방법 Download PDFInfo
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- KR20230077168A KR20230077168A KR1020210164128A KR20210164128A KR20230077168A KR 20230077168 A KR20230077168 A KR 20230077168A KR 1020210164128 A KR1020210164128 A KR 1020210164128A KR 20210164128 A KR20210164128 A KR 20210164128A KR 20230077168 A KR20230077168 A KR 20230077168A
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- vdf
- vinylidene fluoride
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- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 title claims abstract description 223
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title description 15
- 238000004821 distillation Methods 0.000 claims abstract description 131
- 239000011541 reaction mixture Substances 0.000 claims abstract description 69
- 238000000746 purification Methods 0.000 claims abstract description 59
- 238000000197 pyrolysis Methods 0.000 claims abstract description 37
- -1 1-chloro-1,1-difluoroethane compound Chemical class 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 71
- 238000010438 heat treatment Methods 0.000 claims description 32
- 239000000498 cooling water Substances 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 5
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 59
- BHNZEZWIUMJCGF-UHFFFAOYSA-N 1-chloro-1,1-difluoroethane Chemical compound CC(F)(F)Cl BHNZEZWIUMJCGF-UHFFFAOYSA-N 0.000 description 51
- 238000006243 chemical reaction Methods 0.000 description 42
- 239000012535 impurity Substances 0.000 description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 238000009835 boiling Methods 0.000 description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 239000012071 phase Substances 0.000 description 7
- 238000006386 neutralization reaction Methods 0.000 description 6
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical class FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229910001026 inconel Inorganic materials 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- IAWCIZWLKMTPLL-UHFFFAOYSA-N fluoroethyne Chemical compound FC#C IAWCIZWLKMTPLL-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 description 1
- SKDFWEPBABSFMG-UHFFFAOYSA-N 1,2-dichloro-1,1-difluoroethane Chemical compound FC(F)(Cl)CCl SKDFWEPBABSFMG-UHFFFAOYSA-N 0.000 description 1
- MGCGGCMKJWCMKL-UHFFFAOYSA-N 1-bromo-1,1-difluoroethane Chemical compound CC(F)(F)Br MGCGGCMKJWCMKL-UHFFFAOYSA-N 0.000 description 1
- FPBWSPZHCJXUBL-UHFFFAOYSA-N 1-chloro-1-fluoroethene Chemical compound FC(Cl)=C FPBWSPZHCJXUBL-UHFFFAOYSA-N 0.000 description 1
- 229910021562 Chromium(II) fluoride Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- RNFYGEKNFJULJY-UHFFFAOYSA-L chromium(ii) fluoride Chemical compound [F-].[F-].[Cr+2] RNFYGEKNFJULJY-UHFFFAOYSA-L 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B61/00—Other general methods
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B63/00—Purification; Separation; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
- C07C21/18—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
| 운전조건 | 값 |
| 제1 증류탑의 공급속도(Feed) | 10kg/h |
| 제1 증류탑의 상부 배출량(Distillate rate) | 0.3kg/hr |
| 제1 증류탑의 환류비(Reflux ratio) | 50 |
| 제2 증류탑의 상부 배출량(Distillate rate) | 8.55 kg/hr |
| 제2 증류탑의 환류비(Reflux ratio) | 20 |
| 성분 | 함량(질량%) |
| CH3F | 0.026500265 |
| C2HF | 0.006194737 |
| C2F4 | 0.004633543 |
| C2H2F2(VDF) | 89.86579037 |
| C2H3F | 0.15681992 |
| C2H3F3 | 0.262590803 |
| C2HF5 | 0.006935303 |
| C2H4F2 | 0.405329956 |
| CHClF2 | 0.046245364 |
| CH3Cl | 0.044694178 |
| C2ClFH2 | 1.113721663 |
| C2ClF2H3 | 8.000177736 |
| C2Cl2H2 | 0.060366162 |
| 성분 | 함량(질량%) |
| CH3F | 0.000258448 |
| C2HF | 6.94309e-05 |
| C2F4 | 7.46919e-06 |
| C2H2F2(VDF) | 0.999615 |
| C2H3F | 5.00378e-05 |
| C2H3F3 | 2.72187-11 |
| C2HF5 | 1.14766e-12 |
| C2H4F2 | 2.19588e-15 |
| CHClF2 | 9.78234e-13 |
| CH3Cl | 1.99905e-14 |
| C2ClFH2 | 1.01936e-14 |
| C2ClF2H3 | 3.10556e-17 |
| C2Cl2H2 | 8.48358e-27 |
| VDF 순도(질량%) | |
| 실시 예 1 | 99.96% |
| 비교 예 1 | 99.86% |
| 비교 예 2 | 99.85% |
| 비교 예 3 | 99.89% |
| 비교 예 4 | 99.87% |
| 비교 예 5 | 99.80% |
122: 예열 가열기
123: 고온 가열기
131: 수증기 보일러 시스템
132: 수증기 고온 가열기
140: 열분해 반응기
200: 급속 냉각기
330: 세정탑
340: 중화탑
350: 수분 건조탑
310: 제1 증류탑
320: 제2 증류탑
400: VDF 저장탱크
Claims (10)
- 800 ℃ 내지 1000 ℃온도의 수증기를 열원으로 사용하여, 1-클로로-1,1-디플루오로에탄 화합물을 열분해하여 비닐리덴 플루오라이드(Vinylidene Fluoride, VDF)를 생성하는 열분해 장치;
냉각수 분사부를 포함하며, 열분해로 얻어진 비닐리덴 플루오라이드(Vinylidene Fluoride, VDF)를 포함하는 반응혼합물에 냉각수를 분사하여 냉각시키는 급속 냉각기; 및
제1 증류탑 및 상기 제1 증류탑과 연결된 제2 증류탑을 포함하며, 상기 반응혼합물을 정제하여 비닐리덴 플루오라이드(VDF)를 수득하는 정제 장치;를 포함하고,
상기 반응혼합물은 상기 제1 증류탑의 상부로 투입되어 하부로 배출되고, 상기 제2 증류탑의 중앙부로 투입되어 상부로 배출되어 정제되는, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제1항에 있어서,
상기 제1 증류탑 및 제2 증류탑은 15 내지 30개의 단수를 갖는, VDF 제조장치.
- 제1항에 있어서,
상기 제1 증류탑은 정제 공정 시 압력이 4 atm 내지 11 atm이고, 온도가 -70 ℃내지 -20 ℃인, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제1항에 있어서,
상기 제2 증류탑은 정제 공정 시 압력이 4 atm 내지 11 atm이고, 온도가 -50 ℃내지 20 ℃인, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제1항에 있어서,
상기 열분해 장치는
1-클로로-1,1-디플루오로에탄 화합물을 열분해 직전온도로 가열하는 고온 가열기;
1-클로로-1,1-디플루오로에탄 화합물의 열분해를 유도할 수 있는 온도로 수증기를 가열하는 수증기 고온 가열기; 및
상기 고온 가열기 및 수증기 고온 가열기와 연동되는 열분해 반응기;를 포함하는, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제5항에 있어서,
상기 열분해 장치는 1-클로로-1,1-디플루오로에탄 화합물이 고온 가열기로 주입되기 전, 상기 화합물을 50℃ 내지 150 ℃로 가열하여 기체 상으로 유지하는 예비 가열기;를 더 포함하는, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제5항에 있어서,
상기 열분해 반응기는 1-클로로-1,1-디플루오로에탄 화합물 및 수증기의 접촉시간을 0.001초 내지 8초로 유지하는, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제5항에 있어서,
상기 열분해 반응기의 표면 온도는 800~900 ℃인, 비닐리덴 플루오라이드(VDF) 제조장치.
- 제1항의 VDF 제조장치를 이용한 비닐리덴 플루오라이드(VDF) 제조방법으로,
800 ℃ 내지 1000 ℃온도의 수증기를 열원으로 사용하여 1-클로로-1,1-디플루오로에탄 화합물을 열분해하여 비닐리덴 플루오라이드(VDF)를 생성하는 열분해 단계;
열분해로 얻어진 비닐리덴 플루오라이드(Vinylidene Fluoride, VDF)를 포함하는 반응혼합물에 냉각수를 분사하여 냉각시키는 급속 냉각단계; 및
상기 반응혼합물을 정제하여 비닐리덴 플루오라이드(VDF)를 수득하는 정제 단계;를 포함하고,
상기 정제 단계는 상기 반응혼합물을 정제 장치의 제1 증류탑의 상부로 투입하여 하부로 이동시키고, 상기 제1 증류탑과 연결된 상기 제2 증류탑의 중앙부로 투입하여 상부로 이동시켜 정제하는, 비닐리덴 플루오라이드(VDF) 제조방법.
- 액상의 1-클로로-1,1-디플루오로에탄 화합물을 열분해가 일어나기 전의 온도인 400-650 ℃로 가열하여 기체 상으로 준비하는 단계;
기체 상의 상기 화합물 및 800 ℃내지 1000 ℃로 가열한 수증기를 혼합하는 단계;
상기 혼합된 가스를 800 ℃내지 1000 ℃로 유지되는 반응기에 주입하여, 1-클로로-1,1-디플루오로에탄 화합물을 열분해하여 비닐리덴 플루오라이드(VDF)를 생성하는 단계;
열분해로 얻어진 비닐리덴 플루오라이드(Vinylidene Fluoride, VDF)를 포함하는 반응혼합물에 냉각수를 분사하여 냉각시키는 단계; 및
열분해로 얻어진 비닐리덴 플루오라이드(Vinylidene Fluoride, VDF)를 포함하는 반응혼합물을 정제하여 비닐리덴 플루오라이드(VDF)를 수득하는 단계;를 포함하되,
상기 정제는 상기 상기 반응혼합물을 정제 장치의 제1 증류탑의 상부로 투입하여 하부로 배출하고, 상기 제1 증류탑과 연결된 상기 제2 증류탑의 중앙부로 투입하여 상부로 배출하여 정제하는 것인, 비닐리덴 플루오라이드(VDF) 제조방법.
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