JP4257424B2 - Catalyst for fluorination reaction - Google Patents
Catalyst for fluorination reaction Download PDFInfo
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- JP4257424B2 JP4257424B2 JP2004065929A JP2004065929A JP4257424B2 JP 4257424 B2 JP4257424 B2 JP 4257424B2 JP 2004065929 A JP2004065929 A JP 2004065929A JP 2004065929 A JP2004065929 A JP 2004065929A JP 4257424 B2 JP4257424 B2 JP 4257424B2
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- trifluoropropene
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- 239000003054 catalyst Substances 0.000 title claims description 83
- 238000003682 fluorination reaction Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 claims description 27
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 23
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 21
- 229930195733 hydrocarbon Natural products 0.000 claims description 20
- 150000002430 hydrocarbons Chemical class 0.000 claims description 20
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 20
- 239000004215 Carbon black (E152) Substances 0.000 claims description 19
- LDTMPQQAWUMPKS-OWOJBTEDSA-N (e)-1-chloro-3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)\C=C\Cl LDTMPQQAWUMPKS-OWOJBTEDSA-N 0.000 claims description 16
- 229910052736 halogen Inorganic materials 0.000 claims description 16
- 150000002367 halogens Chemical class 0.000 claims description 16
- 229910052731 fluorine Inorganic materials 0.000 claims description 11
- -1 antimony halide Chemical class 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 9
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims description 8
- VVWFZKBKXPXGBH-UHFFFAOYSA-N 1,1,1,3,3-pentachloropropane Chemical compound ClC(Cl)CC(Cl)(Cl)Cl VVWFZKBKXPXGBH-UHFFFAOYSA-N 0.000 claims description 7
- UTACNSITJSJFHA-UHFFFAOYSA-N 1,1,1,3-tetrachloropropane Chemical compound ClCCC(Cl)(Cl)Cl UTACNSITJSJFHA-UHFFFAOYSA-N 0.000 claims description 7
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 7
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 7
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 7
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- PFFGXVGPSGJOBV-UHFFFAOYSA-N 1,1,1,3-tetrafluoropropane Chemical compound FCCC(F)(F)F PFFGXVGPSGJOBV-UHFFFAOYSA-N 0.000 claims description 3
- XWCDCDSDNJVCLO-UHFFFAOYSA-N Chlorofluoromethane Chemical compound FCCl XWCDCDSDNJVCLO-UHFFFAOYSA-N 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 239000012808 vapor phase Substances 0.000 claims description 2
- FFTOUVYEKNGDCM-OWOJBTEDSA-N (e)-1,3,3-trifluoroprop-1-ene Chemical compound F\C=C\C(F)F FFTOUVYEKNGDCM-OWOJBTEDSA-N 0.000 claims 1
- FFTOUVYEKNGDCM-UHFFFAOYSA-N 1,3,3-trifluoroprop-1-ene Chemical compound FC=CC(F)F FFTOUVYEKNGDCM-UHFFFAOYSA-N 0.000 claims 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 229910018287 SbF 5 Inorganic materials 0.000 description 34
- 238000006243 chemical reaction Methods 0.000 description 29
- 239000000047 product Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- 150000001462 antimony Chemical class 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 150000008282 halocarbons Chemical class 0.000 description 7
- 239000012071 phase Substances 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- FDMFUZHCIRHGRG-UHFFFAOYSA-N 3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)C=C FDMFUZHCIRHGRG-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000113 differential scanning calorimetry Methods 0.000 description 4
- GUNJVIDCYZYFGV-UHFFFAOYSA-K antimony trifluoride Chemical compound F[Sb](F)F GUNJVIDCYZYFGV-UHFFFAOYSA-K 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 229910021563 chromium fluoride Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000010574 gas phase reaction Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- FTBATIJJKIIOTP-UHFFFAOYSA-K trifluorochromium Chemical compound F[Cr](F)F FTBATIJJKIIOTP-UHFFFAOYSA-K 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 239000007809 chemical reaction catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012025 fluorinating agent Substances 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- CDOOAUSHHFGWSA-OWOJBTEDSA-N (e)-1,3,3,3-tetrafluoroprop-1-ene Chemical compound F\C=C\C(F)(F)F CDOOAUSHHFGWSA-OWOJBTEDSA-N 0.000 description 1
- LDTMPQQAWUMPKS-UPHRSURJSA-N (z)-1-chloro-3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)\C=C/Cl LDTMPQQAWUMPKS-UPHRSURJSA-N 0.000 description 1
- FTCVHAQNWWBTIV-UHFFFAOYSA-N 1,1,1,2,2-pentachloropropane Chemical compound CC(Cl)(Cl)C(Cl)(Cl)Cl FTCVHAQNWWBTIV-UHFFFAOYSA-N 0.000 description 1
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- 229910021630 Antimony pentafluoride Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 238000005591 Swarts synthesis reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- VBVBHWZYQGJZLR-UHFFFAOYSA-I antimony pentafluoride Chemical compound F[Sb](F)(F)(F)F VBVBHWZYQGJZLR-UHFFFAOYSA-I 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Description
本発明はフッ素化反応用触媒及びそれを用いるフッ素化炭化水素の製造方法に関するものである。 The present invention relates to a fluorination reaction catalyst and a method for producing a fluorinated hydrocarbon using the same.
ハロゲン交換用金属フッ化物触媒は、気相フッ素化プロセスにおける高効率化の触媒である。該触媒性能を表面積の増加や補助金属の添加によって改善することは、これまでに行われてきた重要な手法であった。ＥＰ０５１４９２３（１９９８）には、クロムベース触媒の触媒性能を高表面化することによって向上させる方法が開示されている。また、ＥＰ０５０２６０５（１９９２）や、Ｊ．Ｆｌｕｏｒｉｎｅ Ｃｈｅｍ．，１１１（２００１）１９３及びＥＰＯ８０１９８０（１９９７）には、該触媒に対してＺｎ、Ｃｏ、Ｔｉ、Ｎｉ等の補助金属を添加することによって、触媒活性を向上させた結果が報告されている。 The metal exchange catalyst for halogen exchange is a highly efficient catalyst in the gas phase fluorination process. Improving the catalyst performance by increasing the surface area or adding an auxiliary metal has been an important technique that has been performed so far. EP 0 514 923 (1998) discloses a method for improving the catalytic performance of a chromium-based catalyst by increasing the surface. Also, EP 0502605 (1992) and J. Org. Fluorine Chem. , 111 (2001) 193 and EPO 801980 (1997) report the results of improving the catalytic activity by adding auxiliary metals such as Zn, Co, Ti, and Ni to the catalyst.
有機フッ素化合物を合成するために、有機ハロゲン誘導体をアンチモンペンタフルオライド（ＳｂＦ５）で処理することは、Ｓｗａｒｔ反応の典型例である。しかし、この場合、ＳｂＦ５は湿気空気中に強く揮散するため、その応用は非常に限られたものとなっている。Ｊ．Ｃ．Ｓ．Ｃｈｅｍ．Ｃｏｍｍ．，１９７３，８１５には、ＳｂＦ５に対してグラファイトを加熱により加えて、新しいフッ素化試薬を得ることについて記載されている。ＷＯ９８／４０３３５には、テトラハロゲノプロパンにＨＦを気相反応させることにより、ＨＦＣ−２４５ｆａを合成する方法が示されている。この方法では、ＳｂＣｌ５を活性炭に含浸させたものがプロセス触媒として使用されている。ＪＰ３０３１４６５には、ＨＦＣ−２４５ｆａを得るために、ペンタクロロプロパンとＨＦとを反応させる気相フッ素化法が示されている。この方法では、活性炭に担持したＳｂＣｌ５がプロセス触媒として用いられている。これらのアンチモン塩を炭素に担持した触媒は、ＳｂＦ５に比べて実用的取り扱い性が向上しているが、高温での安定性に問題がある。また米国特許５９１０６１６には、フッ素化触媒として、アンチモンを含む金属塩が用いられているが、その金属の種類には制限がある。 Treatment of an organohalogen derivative with antimony pentafluoride (SbF 5 ) to synthesize an organofluorine compound is a typical example of the Swart reaction. However, in this case, SbF 5 is strongly volatilized in the humid air, and its application is very limited. J. et al. C. S. Chem. Comm. 1973, 815 describe the addition of graphite to SbF 5 by heating to obtain a new fluorinating reagent. WO98 / 40335 shows a method of synthesizing HFC-245fa by reacting tetrahalogenopropane with HF in a gas phase. In this method, activated carbon impregnated with SbCl 5 is used as a process catalyst. JP3031465 discloses a gas phase fluorination method in which pentachloropropane and HF are reacted to obtain HFC-245fa. In this method, SbCl 5 supported on activated carbon is used as a process catalyst. These catalysts antimony salt was supported on carbon is practical handling properties as compared with SbF 5 is improved, there is a problem with the stability at high temperatures. In U.S. Pat. No. 5,910,616, a metal salt containing antimony is used as a fluorination catalyst, but the type of the metal is limited.
本発明者は既に、多孔質アルミニウムフルオライド（ＰＡＦ）にＳｂＣｌ５を含浸させた後、ＨＦでフッ素化することによって、新しいフッ素化触媒を得る方法を見いだしている（特願２００２−３３４８８３）。このものはハロゲン交換反応にはすぐれた触媒活性を有し、しかも、ＳｂＦ５の特性（湿気腐食及び毒性）において改良されたものである。ＳｂＦ５／ＰＡＦは、有機合成においてはフッ素化剤やＦ／Ｃｌ交換用の固定床触媒として有利に使用される。 The present inventor has already found a method for obtaining a new fluorination catalyst by impregnating porous aluminum fluoride (PAF) with SbCl 5 and then fluorinating with HF (Japanese Patent Application No. 2002-334883). This has excellent catalytic activity for the halogen exchange reaction and is improved in the properties of SbF 5 (moisture corrosion and toxicity). SbF 5 / PAF is advantageously used as a fluorinating agent or a fixed bed catalyst for F / Cl exchange in organic synthesis.
本発明者らは、６０ｍ２／ｇの表面積を有する多孔質カルシウムフルオライド（ＰＣＦ）を提案した（非特許文献１）（Ｊ．Ｆｌｕｏｒｉｎｅ Ｃｈｅｍ．１１６（２００２）６５−６９）。さらに、９０〜２００ｍ２／ｇという高表面積を有する多孔質クロムフルオライド（ｐｏｒｏｕｓ ｃｈｒｏｍｉｕｍ ｆｌｕｏｒｉｄｅ）（ＰＣｒＦ）も提案した（特許文献１）（特願２００３―３０３０７８）。
しかし、これらのものは、フッ素化反応をさらに活性化させるための金属の担持という点からは未だ不満足のもであった。
The present inventors have proposed porous calcium fluoride (PCF) having a surface area of 60 m 2 / g (Non-Patent Document 1) (J. Fluorine Chem. 116 (2002) 65-69). Furthermore, porous chromium fluoride (PCrF) having a high surface area of 90 to 200 m 2 / g has also been proposed (Patent Document 1) (Japanese Patent Application No. 2003-303078).
However, these products are still unsatisfactory in terms of supporting metal for further activating the fluorination reaction.
本発明は、フッ化水素をフッ素化剤とするフッ素化反応に用いる触媒において、高められたフッ素化活性を有する触媒を提供するともに、該触媒を用いるフッ素化法を提供することをその課題とする。 An object of the present invention is to provide a catalyst having enhanced fluorination activity as a catalyst used in a fluorination reaction using hydrogen fluoride as a fluorinating agent, and to provide a fluorination method using the catalyst. To do.
本発明によれば、以下に示す触媒及び方法が提供される。
（１）フッ化マグネシウムからなる多孔質支持体に下記一般式（１）
で表されるアンチモンハロゲン化物を担持させたことを特徴とするフッ素化反応用触媒。
（２）該アンチモンハロゲン化物の含有量が、触媒中１〜７０重量％である前記（１）に記載の触媒。
（３）フッ素以外のハロゲンを含む炭化水素を、触媒の存在下、フッ化水素を用いて気相フッ素化する方法において、該触媒として、前記（１）または（２）に記載の触媒を用いることを特徴とするフッ素化炭化水素の製造方法。
（４）該ハロゲンを含む炭化水素が、炭素数１〜６のアルケン又はアルカンのハロゲン化物である前記（３）に記載の方法。
（５）該ハロゲンを含む炭化水素が、１，１，３，３，３−ペンタクロロプロパン、１−クロロ−３，３，３−トリフルオロプロペン、１，３，３，３−テトラクロロプロパン又はジクロロメタンである前記（３）に記載の方法。
（６）該ハロゲンを含む炭化水素として、１，１，３，３，３−ペンタクロロプロパンを用いて、トランス−１−クロロ−３，３，３−トリフルオロプロペン及び、もしくはシス−１−クロロ−３，３，３−トリフルオロプロペンを生成させる前記（３）に記載の方法。
（７）該ハロゲンを含む炭化水素として、１−クロロ−３，３，３−トリフルオロプロペンを用いて、１，１，１，３，３−ペンタフルオロプロパンを生成させる前記（３）に記載の方法。
（８）該ハロゲンを含む炭化水素として、１，１，１，３−テトラクロロプロパンを用いて、３，３，３−トリフルオロプロペン及び、もしくは１，１，１，３−テトラフルオロプロパンを生成させる前記（３）に記載の方法。
（９）該ハロゲンを含む炭化水素として、ジクロロメタンを用いて、ジフルオロメタン及び、もしくはクロロフルオロメタンを生成させる前記（３）に記載の方法。
According to the present invention, the following catalysts and methods are provided.
(1) The following general formula (1) is applied to a porous support made of magnesium fluoride.
A catalyst for fluorination reaction, comprising an antimony halide represented by the formula:
(2) The catalyst according to (1), wherein the content of the antimony halide is 1 to 70% by weight in the catalyst.
(3) In the method of vapor-phase fluorination of a hydrocarbon containing halogen other than fluorine using hydrogen fluoride in the presence of a catalyst, the catalyst described in (1) or (2) is used as the catalyst. A method for producing a fluorinated hydrocarbon, characterized in that
(4) The method according to (3) above, wherein the halogen-containing hydrocarbon is a C 1-6 alkene or alkane halide.
(5) The halogen-containing hydrocarbon is 1,1,3,3,3-pentachloropropane, 1-chloro-3,3,3-trifluoropropene, 1,3,3,3-tetrachloropropane or dichloromethane. The method according to (3), wherein
(6) Using 1,1,3,3,3-pentachloropropane as the halogen-containing hydrocarbon, trans-1-chloro-3,3,3-trifluoropropene and / or cis-1-chloro The method according to (3) above, wherein -3,3,3-trifluoropropene is produced.
(7) As described in (3) above, 1,1,1,3,3-pentafluoropropane is produced using 1-chloro-3,3,3-trifluoropropene as the halogen-containing hydrocarbon. the method of.
(8) Using 1,1,1,3-tetrachloropropane as the halogen-containing hydrocarbon to produce 3,3,3-trifluoropropene and / or 1,1,1,3-tetrafluoropropane The method according to (3) above.
(9) The method according to (3) above, wherein difluoromethane and / or chlorofluoromethane are produced using dichloromethane as the halogen-containing hydrocarbon.
本発明によれば、フッ化水素（ＨＦ）を用いて有機ハロゲン化物中に含まれる塩素原子をフッ素原子に変換させるフッ素化反応に用いる高効率の触媒が提供される。この触媒は高い活性を有し、また、高温でも安定であり、工業触媒として好適のものである。 ADVANTAGE OF THE INVENTION According to this invention, the highly efficient catalyst used for the fluorination reaction which converts the chlorine atom contained in organic halide into a fluorine atom using hydrogen fluoride (HF) is provided. This catalyst has high activity and is stable even at high temperatures, and is suitable as an industrial catalyst.
本発明の触媒は、フッ化マグネシウムからなる多孔質支持体に、下記式（１）
で表されるアンチモンフッ化物を担持させた構造を有する。
該多孔質支持体としては、フッ化マグネシウムからなる多孔質支持体が用いられる。
フッ化マグネシウムからなる多孔質支持体は、その表面積に特に制限はない。
この多孔質支持体は、ペレット状や顆粒状であることができるが、顆粒状の場合、その平均粒径は、特に制約されないが、通常０．２〜５ｍｍ、好ましくは０．５〜３ｍｍである。
The catalyst of the present invention has the following formula (1) on a porous support made of magnesium fluoride.
The structure which carry | supported the antimony fluoride represented by these.
As the porous support, a porous support made of magnesium fluoride is used.
The surface area of the porous support made of magnesium fluoride is not particularly limited.
The porous support can be in the form of pellets or granules. In the case of granules, the average particle diameter is not particularly limited, but is usually 0.2 to 5 mm, preferably 0.5 to 3 mm. is there.
また、この多孔質支持体でも副成分を含むことができる。副成分として金属酸化物、金属塩化物、その他の金属塩などを例示することができるが、その種類に特に制限はない。副成分の含有量は、３０重量％以下、好ましくは５重量％以下である。 In addition, this porous support can also contain subcomponents. Examples of subcomponents include metal oxides, metal chlorides, and other metal salts, but the type is not particularly limited. The content of the accessory component is 30% by weight or less, preferably 5% by weight or less.
多孔質支持体の表面積は大きい程好ましい。この多孔質支持体は、取り扱いの困難なアンチモンフッ化物を安定化させる効果を示す。
多孔質支持体としては、平均細孔直径：５〜１２０Å、好ましくは２０〜５０Å、空孔率：０．０５〜０．８ｃｃ／ｇ、好ましくは０．１〜０．７ｃｃ／ｇの細孔構造を有するものが好ましい。
The larger the surface area of the porous support, the better. This porous support has an effect of stabilizing antimony fluoride which is difficult to handle.
As the porous support, pores having an average pore diameter of 5 to 120 mm, preferably 20 to 50 mm and a porosity of 0.05 to 0.8 cc / g, preferably 0.1 to 0.7 cc / g Those having a structure are preferred.
本発明で用いる前記式（１）で表されるフッ素化アンチモンは、触媒の活性促進成分として作用する。多孔質支持体に対するフッ素化アンチモンの割合は、触媒中、１〜７０重量％、好ましくは５〜５０重量％である。 The fluorinated antimony represented by the formula (1) used in the present invention acts as an activity promoting component of the catalyst. The ratio of fluorinated antimony to the porous support is 1 to 70% by weight, preferably 5 to 50% by weight in the catalyst.
本発明の触媒は、多孔質支持体に、フッ素化アンチモンを四塩化炭素等の溶媒に溶かした溶液状で含浸させ、乾燥することによって製造することができる。
また、本発明の触媒は、多孔質支持体に塩素化アンチモンを溶液状で含浸させ、乾燥した後、フッ化水素（ＨＦ）を反応させて該塩素化アンチモンをフッ素化アンチモンに変換することによっても製造することができる。
The catalyst of the present invention can be produced by impregnating a porous support with a solution of fluorinated antimony dissolved in a solvent such as carbon tetrachloride and drying.
Further, the catalyst of the present invention is obtained by impregnating a porous support with chlorinated antimony in a solution state, drying, and then reacting with hydrogen fluoride (HF) to convert the chlorinated antimony to fluorinated antimony. Can also be manufactured.
本発明の触媒は、高いフッ素化活性を有し、ハロゲン化炭化水素中に含まれるフッ素以外のハロゲン原子をＨＦと気相反応させてフッ素原子に変換させる際のフッ素化反応触媒として有利に用いることができる。この場合、フッ化アンチモンは単体では液体であるが、触媒に固定化することにより固定床の形態で有利に用いることができる。また、本発明の触媒は、４００℃以上の高温でも安定である。 The catalyst of the present invention has high fluorination activity, and is advantageously used as a fluorination reaction catalyst when a halogen atom other than fluorine contained in the halogenated hydrocarbon is converted into a fluorine atom by gas phase reaction with HF. be able to. In this case, although antimony fluoride is a liquid by itself, it can be advantageously used in the form of a fixed bed by being immobilized on a catalyst. The catalyst of the present invention is stable even at a high temperature of 400 ° C. or higher.
本発明の触媒を用いるときには、例えば、１，１，１，３，３−ペンタクロロプロパンをＨＦと気相反応させることにより、トランス−１−クロロ−３，３，３−トリフルオロプロペンまたはシス−１−クロロ−３，３，３−トリフルオロプロペンに効率よく変換させることができる。この場合、反応温度は１５０〜４５０℃、好ましくは２００〜３００℃である。ＨＦと１，１，１，３，３−ペンタクロロプロパンとのモル比は１：１〜３０：１、好ましくは３：１〜２０：１、より好ましくは５：１〜１５：１である。 When the catalyst of the present invention is used, for example, 1,1,1,3,3-pentachloropropane is reacted with HF in a gas phase to produce trans-1-chloro-3,3,3-trifluoropropene or cis- It can be efficiently converted to 1-chloro-3,3,3-trifluoropropene. In this case, the reaction temperature is 150 to 450 ° C, preferably 200 to 300 ° C. The molar ratio of HF to 1,1,1,3,3-pentachloropropane is 1: 1 to 30: 1, preferably 3: 1 to 20: 1, more preferably 5: 1 to 15: 1.
また、本発明の触媒を用いるときには、１−クロロ−３，３，３−トリフルオロプロペンをＨＦと気相反応させることにより１，１，１，３，３−フルオロプロパンに効率よく変換させることができる。この場合、反応温度は５０〜３５０℃、好ましくは７０〜１２０℃である。ＨＦと１−クロロ−３，３，３−トリフルオロプロペンとのモル比は１：１〜３０：１、好ましくは２：１〜１５：１である。 When the catalyst of the present invention is used, 1-chloro-3,3,3-trifluoropropene can be efficiently converted to 1,1,1,3,3-fluoropropane by gas phase reaction with HF. Can do. In this case, the reaction temperature is 50 to 350 ° C, preferably 70 to 120 ° C. The molar ratio of HF to 1-chloro-3,3,3-trifluoropropene is 1: 1 to 30: 1, preferably 2: 1 to 15: 1.
本発明の触媒を用いるときには、１，１，１，３−テトラクロロプロパンを、ＨＦと気相反応させることにより、３，３，３−トリフルオロプロペンまたは１，１，１，３−テトラフルオロプロパンに効率的に変換させることができる。この場合、反応温度は２５０〜４５０℃、好ましくは３００〜３５０℃である。ＨＦと１，１，１，３−テトラクロロプロパンとのモル比は、１：１〜３０：１、好ましくは５：１〜１５：１である。 When using the catalyst of the present invention, 1,1,1,3-tetrachloropropane is reacted with HF in a gas phase to produce 3,3,3-trifluoropropene or 1,1,1,3-tetrafluoropropane. Can be converted efficiently. In this case, the reaction temperature is 250 to 450 ° C, preferably 300 to 350 ° C. The molar ratio of HF to 1,1,1,3-tetrachloropropane is 1: 1 to 30: 1, preferably 5: 1 to 15: 1.
本発明の触媒を用いるときには、ジクロロメタンをＨＦと気相反応させることにより、ジフルオロメタンに効率よく変換させることができる。この場合、ＨＦとジクロロメタン（ＣＨ２Ｃｌ２）とのモル比は、１：１〜３０：１、好ましくは３：１〜１０：１である。反応温度は１５０〜４５０℃、好ましくは２００〜３５０℃である。 When using the catalyst of the present invention, dichloromethane can be efficiently converted to difluoromethane by gas phase reaction with HF. In this case, the molar ratio of HF to dichloromethane (CH 2 Cl 2 ) is 1: 1 to 30: 1, preferably 3: 1 to 10: 1. The reaction temperature is 150 to 450 ° C, preferably 200 to 350 ° C.
本発明の触媒を用いてフッ素化炭化水素を製造する場合、その反応原料であるハロゲン化炭化水素は、例えば塩素のみ、塩素とフッ素、臭素のみ、臭素とフッ素、ヨウ素のみ、ヨウ素とフッ素を含有するものを例示することができる。炭化水素の炭素数は１〜１２、好ましくは１〜６である。ハロゲン化炭化水素において、その炭化水素は、炭素数１〜８の脂肪族炭化水素や、炭素数５〜８の環状脂肪族炭化水素、炭素数６〜１２の芳香族炭化水素であることができる。これらのハロゲン化炭化水素をＨＦと気相反応させる場合、該ハロゲン化炭化水素が気相を形成する反応温度が適宜用いられ、また、所望するフッ素化物に対応するＨＦ／ハロゲン化炭化水素モル比が適宜用いられる。 When producing a fluorinated hydrocarbon using the catalyst of the present invention, the halogenated hydrocarbon as a reaction raw material contains, for example, only chlorine, chlorine and fluorine, only bromine, bromine and fluorine, only iodine, iodine and fluorine. What can be illustrated. The hydrocarbon has 1 to 12 carbon atoms, preferably 1 to 6 carbon atoms. In the halogenated hydrocarbon, the hydrocarbon may be an aliphatic hydrocarbon having 1 to 8 carbon atoms, a cyclic aliphatic hydrocarbon having 5 to 8 carbon atoms, or an aromatic hydrocarbon having 6 to 12 carbon atoms. . When these halogenated hydrocarbons are reacted with HF in a gas phase, the reaction temperature at which the halogenated hydrocarbon forms a gas phase is appropriately used, and the HF / halogenated hydrocarbon molar ratio corresponding to the desired fluoride Is used as appropriate.
次に本発明を実施例及び比較例によりさらに詳述するが、本発明は以下の例によって限定されるものではない。
なお、本明細書中で言う表面積は、慣用のＢ．Ｅ．Ｔ表面積である。
EXAMPLES Next, although an Example and a comparative example demonstrate this invention further in full detail, this invention is not limited by the following examples.
In addition, the surface area said in this specification is conventional B.I. E. T surface area.
参考例１
（多孔質フッ化クロムにＳｂＦ５を含有させた構造の触媒ＳｂＦ５／ＰＣｒＦの製造）
１０ｇのペレット状多孔質フッ化クロム（ＰＣｒＦ）（このものは特願２００３−３０３０７８号に記載の方法によって調製したもので、その表面積は１８７ｍ２／ｇである）に、１０ｇのＳｂＣｌ５をＮ２雰囲気下で徐々に滴下した。このようにしてＳｂＣｌ５を含有するＰＣｒＦペレットを得た。
このペレットをＮ２流通下１００℃で乾燥したのち、Ｎ２で希釈した無水ＨＦ（ＡＨＦ）（Ｎ２／ＡＨＦ＝１／１）で１００℃で処理、さらに温度とＡＨＦの濃度を上昇し、最終的には純ＡＨＦを用いて２００℃で処理した。最後に残存するＨＦをＮ２を流通させることによって除去し、触媒Ａ ＳｂＦ５／ＰＣｒＦを得た。ＳｂＦ５／ＰＣｒＦの示差走査熱量分析（ＤＳＣ）を行ったところ、約５００℃まで吸熱や発熱する変化はない、すなわち約５００℃まで安定であることがわかった。
Reference example 1
(Production of catalyst SbF 5 / PCrF having a structure in which SbF 5 is contained in porous chromium fluoride)
To 10 g of pellet-like porous chromium fluoride (PCrF) (this was prepared by the method described in Japanese Patent Application No. 2003-303078 and its surface area was 187 m 2 / g), 10 g of SbCl 5 was added to N The solution was gradually added dropwise under two atmospheres. In this way, PCrF pellets containing SbCl 5 were obtained.
After the pellets were dried in N 2 flow under 100 ° C., treated with 100 ° C. with anhydrous diluted with N 2 HF (AHF) (N 2 / AHF = 1/1), further increasing the concentration of temperature and AHF, Finally, it was processed at 200 ° C. using pure AHF. Finally, the remaining HF was removed by flowing N 2 to obtain catalyst A SbF 5 / PCrF. When differential scanning calorimetry (DSC) of SbF 5 / PCrF was performed, it was found that there was no endothermic or exothermic change up to about 500 ° C., that is, it was stable up to about 500 ° C.
参考例２
（ＳｂＦ５／ＰＣｒＦ触媒による１−クロロ−３，３，３−トリフルオロプロペンの合成）
触媒Ａ１０ｍｌを反応器に入れ、１，１，１，３，３−ペンタクロロプロパン（ＰＣＰＡＮ）（流量：０．１５ｇ／分）と無水ＨＦとの混合物を気化して供給し、３０５℃で反応させた。反応生成物を水洗、ソーダライムで乾燥した後、ＮＭＲで分析した結果、トランス−１−クロロ−３，３，３−トリフルオロプロペンとシス−１−クロロ３，３，３−トリフルオロプロペンがそれぞれ８９．８％及び９．０％の収率で生成したことが確認された。
Reference example 2
(Synthesis of 1-chloro-3,3,3-trifluoropropene with SbF 5 / PCrF catalyst)
10 ml of catalyst A was put into a reactor, and a mixture of 1,1,1,3,3-pentachloropropane (PCPAN) (flow rate: 0.15 g / min) and anhydrous HF was vaporized and supplied, and reacted at 305 ° C. It was. The reaction product was washed with water, dried with soda lime, and analyzed by NMR. As a result, trans-1-chloro-3,3,3-trifluoropropene and cis-1-chloro-3,3,3-trifluoropropene were It was confirmed that they were produced in a yield of 89.8% and 9.0%, respectively.
参考例３
ＳｂＣｌ５を５．４ｇ用いる以外は参考例１と同様にして触媒Ｂを得た。
Reference example 3
Catalyst B was obtained in the same manner as in Reference Example 1, except that 5.4 g of SbCl 5 was used.
参考例４
参考例２において、触媒Ａの代わりに触媒Ｂを用いた以外は同様に反応を行った。結果は後記表１に示す。
Reference example 4
In Reference Example 2, the reaction was performed in the same manner except that the catalyst B was used instead of the catalyst A. The results are shown in Table 1 below.
参考例５
ＳｂＣｌ５を３．２ｇ用いる以外は参考例１と同様にして触媒Ｃを得た。
Reference Example 5
Catalyst C was obtained in the same manner as in Reference Example 1 except that 3.2 g of SbCl 5 was used.
参考例６
参考例２において、触媒Ａの代わりに触媒Ｃを用いた以外は同様にして反応を行った。結果は後記表１に示す。
Reference Example 6
In Reference Example 2, the reaction was performed in the same manner except that the catalyst C was used instead of the catalyst A. The results are shown in Table 1 below.
前記した反応結果を表１にまとめて示す。アンチモン塩を含む触媒では含まない触媒と比べてより低い反応温度でより高い収率が得られている。 The above reaction results are summarized in Table 1. Higher yields are obtained at lower reaction temperatures compared to catalysts not containing antimony salts.
生成物２：シス−ＣＦ３ＣＨ＝ＣＨＣｌ
Product 2: cis -CF 3 CH = CHCl
参考例７
（ＳｂＦ５／ＰＣｒＦ触媒による１，１，１，３，３−ペンタフルオロプロパンの合成）
参考例２において、触媒として参考例５で示した触媒Ｃを用いるとともに、原料ハロゲン化炭化水素として１−クロロ−３，３，３−トリフルオロプロペン（ＣＴＦＰ）を用いた以外は同様にして反応を行った。但し、この場合の反応温度は２７０℃である。
この反応の結果、トランス−ＣＦ３ＣＨ＝ＣＨＦ（選択率４４．７％）、ＣＦ３ＣＨ２ＣＨＦ２（選択率４９．５％）、シス−ＣＦ３ＣＨ＝ＣＨＣｌ（選択率６．０％）が生成した。この場合の原料（トランス−ＣＦ３ＣＨ＝ＣＨＣｌ）の転化率は７０．２％であった。
Reference Example 7
(Synthesis of 1,1,1,3,3-pentafluoropropane with SbF 5 / PCrF catalyst)
In Reference Example 2, the reaction was carried out in the same manner except that the catalyst C shown in Reference Example 5 was used as the catalyst and 1-chloro-3,3,3-trifluoropropene (CTFP) was used as the raw material halogenated hydrocarbon. Went. However, the reaction temperature in this case is 270 ° C.
The result of this reaction, trans -CF 3 CH = CHF (selectivity 44.7%), CF 3 CH 2 CHF 2 ( selectivity 49.5 percent), cis -CF 3 CH = CHCl (selectivity 6.0% ) Produced. The conversion rate of the raw material (trans-CF 3 CH═CHCl) in this case was 70.2%.
参考例８
（ＳｂＦ５／ＰＣｒＦ触媒による３，３，３−トリフルオロプロペンの合成）
参考例２において、触媒として触媒Ａを用いるとともに、原料として１，１，１，３−テトラクロロプロパン（ＴＣＰ）を用いた以外は同様にして反応を行った。この場合、３２０℃と３４０℃で反応を行った。
この反応の結果３２０℃では、３，３，３−トリフルオロプロペン（収率６４．７％）及び１，３，３，３−テトラフルオロプロペン（収率０．７％）が生成した。３４０℃では、前記２つの化合物が、それぞれ、収率８９．６％及び１０％で生成した。
Reference Example 8
(Synthesis of 3,3,3-trifluoropropene by SbF 5 / PCrF catalyst)
In Reference Example 2, the reaction was performed in the same manner except that Catalyst A was used as the catalyst and 1,1,1,3-tetrachloropropane (TCP) was used as the raw material. In this case, the reaction was performed at 320 ° C. and 340 ° C.
As a result of this reaction, 3,3,3-trifluoropropene (yield 64.7%) and 1,3,3,3-tetrafluoropropene (yield 0.7%) were produced at 320 ° C. At 340 ° C., the two compounds were produced in 89.6% and 10% yields, respectively.
参考例９
（ＳｂＦ５／ＰＣｒＦ触媒によるジフルオロメタンの合成）
実施例１で得た触媒Ａを用いるとともに、原料としてジクロロメタンを用いた以外は参考例２と同様にして反応を行った。
この場合の反応結果を表２に示す。
Reference Example 9
(Synthesis of difluoromethane with SbF 5 / PCrF catalyst)
The reaction was performed in the same manner as in Reference Example 2 except that the catalyst A obtained in Example 1 was used and dichloromethane was used as a raw material.
The reaction results in this case are shown in Table 2.
参考例１０
参考例９において、触媒として参考例３で示した触媒Ｂを用いた以外は同様にして反応を行った。その反応結果を表３に示す。
Reference Example 10
In Reference Example 9, the reaction was performed in the same manner except that the catalyst B shown in Reference Example 3 was used as the catalyst. The reaction results are shown in Table 3.
参考例１１
（ＳｂＦ５を多孔質フッ化カルシウム（ＰＣＦ）に含有させた触媒ＳｂＦ５／ＰＣＦの調製）
多孔質化合物として６０ｍ２／ｇの表面積を有するペレット状ＰＣＦ１０ｇを用いた以外は参考例１と同様にして実験を行って、触媒Ｄ ＳｂＦ５／ＰＣＦを得た。ＳｂＦ５／ＰＣＦの示差走査熱量分析（ＤＳＣ）を行ったところ、約５００℃まで吸熱や発熱する変化はない、すなわち約５００℃まで安定であることがわかった。
Reference Example 11
(Preparation of catalyst SbF 5 / PCF containing SbF 5 in porous calcium fluoride (PCF))
An experiment was performed in the same manner as in Reference Example 1 except that 10 g of pellet-shaped PCF having a surface area of 60 m 2 / g was used as the porous compound, to obtain catalyst D SbF 5 / PCF. When differential scanning calorimetry (DSC) of SbF 5 / PCF was performed, it was found that there was no endothermic or exothermic change up to about 500 ° C., that is, it was stable up to about 500 ° C.
参考例１２
（ＳｂＦ５／ＰＣＦ触媒による１，１，１，３，３−ペンタフルオロプロパンの合成）
参考例７において、触媒として参考例１１で得た触媒Ｄを用いた以外は同様にして反応を行った。反応結果を表４に示す。
Reference Example 12
(Synthesis of 1,1,1,3,3-pentafluoropropane with SbF 5 / PCF catalyst)
In Reference Example 7, the reaction was performed in the same manner except that the catalyst D obtained in Reference Example 11 was used as the catalyst. The reaction results are shown in Table 4.
生成物２：ＣＦ３ＣＨ２ＣＦ２
生成物３：シス−ＣＦ３ＣＨ＝ＣＨＣｌ
Product 2: CF 3 CH 2 CF 2
Product 3: cis -CF 3 CH = CHCl
参考例１３
（ＳｂＦ５／ＰＣＦ触媒による１−クロロ−３，３，３−トリフルオロプロペンの合成）
参考例２において、触媒Ａの代わりに参考例１１で得た触媒Ｄを用いた以外は同様にして反応を行った。結果は表５に示す。
Reference Example 13
(Synthesis of 1-chloro-3,3,3-trifluoropropene by SbF 5 / PCF catalyst)
In Reference Example 2, the reaction was performed in the same manner except that Catalyst D obtained in Reference Example 11 was used instead of Catalyst A. The results are shown in Table 5.
実施例１
（ＳｂＦ５を多孔質フッ化マグネシウムに含有させた触媒ＳｂＦ５／ＰＭｇＦの調製）
ＳｂＣｌ５を２５．８ｇ用い、多孔質化合物として８．６ｍ２／ｇの表面積を有するフッ化マグネシウム２３．４ｇを用いた以外は参考例１と同様にして実験を行って、触媒Ｅ ＳｂＦ５／ＰＭｇＦを得た。ＳｂＦ５／ＰＣＦの示差走査熱量分析（ＤＳＣ）を行ったところ、約５００℃まで吸熱や発熱する変化はない、すなわち約５００℃まで安定であることがわかった。
Example 1
(Preparation of catalyst SbF 5 / PMgF containing SbF 5 in porous magnesium fluoride)
Experiments were conducted in the same manner as in Reference Example 1 except that 25.8 g of SbCl 5 was used and 23.4 g of magnesium fluoride having a surface area of 8.6 m 2 / g was used as the porous compound, and the catalyst E SbF 5 / PMgF was obtained. When differential scanning calorimetry (DSC) of SbF 5 / PCF was performed, it was found that there was no endothermic or exothermic change up to about 500 ° C., that is, it was stable up to about 500 ° C.
実施例２
（ＳｂＦ５／ＰＭｇＦ触媒による１−クロロ−３，３，３−トリフルオロプロペンの合成）
参考例１２において、触媒Ａの代わりに実施例１で得た触媒Ｅを用いた以外は同様にして反応を行った。結果は表６に示す。
Example 2
(Synthesis of 1-chloro-3,3,3-trifluoropropene with SbF 5 / PMgF catalyst)
In Reference Example 12 , the reaction was performed in the same manner except that Catalyst E obtained in Example 1 was used instead of Catalyst A. The results are shown in Table 6.
実施例３
（ＳｂＦ５／ＰＭｇＦ触媒による１，１，１，３，３−ペンタフルオロプロパンの合成）
参考例７において、触媒として実施例１で得た触媒Ｅを用いた以外は同様にして反応を行った。反応結果を表７に示す。 Example 3
(Synthesis of 1,1,1,3,3-pentafluoropropane with SbF 5 / PMgF catalyst)
In Reference Example 7, the reaction was performed in the same manner except that the catalyst E obtained in Example 1 was used as the catalyst. The reaction results are shown in Table 7.
生成物２：ＣＦ３ＣＨ２ＣＦ２
生成物３：シス−ＣＦ３ＣＨ＝ＣＨＣｌ
Product 2: CF 3 CH 2 CF 2
Product 3: cis -CF 3 CH = CHCl
比較例１
（ＳｂＦ５を活性炭に含有させた触媒ＳｂＦ５／Ｃの熱安定性）
多孔質化合物として活性炭（使用量はＳｂＣｌ５と同量）を用いた以外は参考例１と同様にして実験を行って、ＳｂＦ５／Ｃを得た。ＳｂＦ５／Ｃの示差走査熱量分析（ＤＳＣ）を行ったところ、約３３０℃から大きな発熱が起こってＳｂＦ５／Ｃが分解した。これより、ＳｂＦ５／Ｃは、ＳｂＦ５を金属塩に含有させた触媒ＳｂＦ ５ ／ＰＭｇＦより高温での安定性が低いことが示された。
Comparative Example 1
(Thermal stability of catalyst SbF 5 / C containing SbF 5 in activated carbon)
An experiment was carried out in the same manner as in Reference Example 1 except that activated carbon (the amount used was the same as SbCl 5 ) was used as the porous compound, to obtain SbF 5 / C. When differential scanning calorimetry (DSC) of SbF 5 / C was performed, a large exotherm occurred from about 330 ° C., and SbF 5 / C was decomposed. Than this, SbF 5 / C has been shown to SbF 5 low stability at high temperatures the catalyst SbF 5 / PMgF which contains the metal salt.
Claims (9)
で表されるアンチモンハロゲン化物を担持させたことを特徴とするフッ素化反応用触媒。 The following general formula (1) is applied to a porous support made of magnesium fluoride.
A catalyst for fluorination reaction, comprising an antimony halide represented by the formula:
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| EP2041053A1 (en) * | 2006-07-07 | 2009-04-01 | E.I. Du Pont De Nemours And Company | Catalytic addition of hydrofluorocarbons to fluoroolefins |
| US8916733B2 (en) * | 2008-06-17 | 2014-12-23 | Honeywell International Inc. | Processes for hydrofluorination of 2-chloro-3,3,3-trifluoropropene to 2-chloro-1,1,1,2-tetrafluoropropane |
| CN101696149A (en) * | 2009-10-29 | 2010-04-21 | 江苏康泰氟化工有限公司 | Method for preparing 1,1,1-trifluoro-2-chloroethane |
| US9045386B2 (en) * | 2010-02-18 | 2015-06-02 | Honeywell International Inc. | Integrated process and methods of producing (E)-1-chloro-3,3,3-trifluoropropene |
| CN102199071B (en) * | 2011-04-08 | 2013-05-01 | 北京宇极科技发展有限公司 | Method for synthesizing 2,3,3,3-tetrafluoropropene |
| CN104707631A (en) | 2013-12-12 | 2015-06-17 | 西安近代化学研究所 | Chromium-free gas phase fluorination catalyst and use thereof |
| EP3847145A2 (en) * | 2018-09-07 | 2021-07-14 | The Chemours Company FC, LLC | Fluorine removal from antimony fluorohalide catalyst using chlorocarbons |
| CN112452345B (en) * | 2020-11-17 | 2023-03-21 | 西安近代化学研究所 | Catalyst for gas phase fluorination synthesis of trans-1-chloro-3, 3-trifluoropropene and synthesis method thereof |
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| CN1127460C (en) * | 1999-07-28 | 2003-11-12 | 浙江省化工研究院 | Process for preparing 1,1,1-trichloro-2-chloroethone |
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