JP5517352B2 - ポリ酸担持触媒の製造方法 - Google Patents
ポリ酸担持触媒の製造方法 Download PDFInfo
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- JP5517352B2 JP5517352B2 JP2010162849A JP2010162849A JP5517352B2 JP 5517352 B2 JP5517352 B2 JP 5517352B2 JP 2010162849 A JP2010162849 A JP 2010162849A JP 2010162849 A JP2010162849 A JP 2010162849A JP 5517352 B2 JP5517352 B2 JP 5517352B2
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- Prior art keywords
- polyacid
- reaction
- acid
- producing
- catalyst
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- CVCXSNONTRFSEH-UHFFFAOYSA-N docosa-2,4-dienoic acid Chemical compound CCCCCCCCCCCCCCCCCC=CC=CC(O)=O CVCXSNONTRFSEH-UHFFFAOYSA-N 0.000 description 1
- 235000020669 docosahexaenoic acid Nutrition 0.000 description 1
- 229940090949 docosahexaenoic acid Drugs 0.000 description 1
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- 235000020673 eicosapentaenoic acid Nutrition 0.000 description 1
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- IQLUYYHUNSSHIY-HZUMYPAESA-N eicosatetraenoic acid Chemical compound CCCCCCCCCCC\C=C\C=C\C=C\C=C\C(O)=O IQLUYYHUNSSHIY-HZUMYPAESA-N 0.000 description 1
- 229940108623 eicosenoic acid Drugs 0.000 description 1
- BITHHVVYSMSWAG-UHFFFAOYSA-N eicosenoic acid Natural products CCCCCCCCC=CCCCCCCCCCC(O)=O BITHHVVYSMSWAG-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- DPUOLQHDNGRHBS-KTKRTIGZSA-N erucic acid Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-KTKRTIGZSA-N 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- XGZNHFPFJRZBBT-UHFFFAOYSA-N ethanol;titanium Chemical compound [Ti].CCO.CCO.CCO.CCO XGZNHFPFJRZBBT-UHFFFAOYSA-N 0.000 description 1
- LDLDYFCCDKENPD-UHFFFAOYSA-N ethenylcyclohexane Chemical compound C=CC1CCCCC1 LDLDYFCCDKENPD-UHFFFAOYSA-N 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- GELSOTNVVKOYAW-UHFFFAOYSA-N ethyl(triphenyl)phosphanium Chemical class C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CC)C1=CC=CC=C1 GELSOTNVVKOYAW-UHFFFAOYSA-N 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- LQJBNNIYVWPHFW-QXMHVHEDSA-N gadoleic acid Chemical compound CCCCCCCCCC\C=C/CCCCCCCC(O)=O LQJBNNIYVWPHFW-QXMHVHEDSA-N 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 229910021476 group 6 element Inorganic materials 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 238000010813 internal standard method Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- JYJVVHFRSFVEJM-UHFFFAOYSA-N iodosobenzene Chemical compound O=IC1=CC=CC=C1 JYJVVHFRSFVEJM-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 229910021644 lanthanide ion Inorganic materials 0.000 description 1
- LQFNMFDUAPEJRY-UHFFFAOYSA-K lanthanum(3+);phosphate Chemical compound [La+3].[O-]P([O-])([O-])=O LQFNMFDUAPEJRY-UHFFFAOYSA-K 0.000 description 1
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- SKTCDJAMAYNROS-UHFFFAOYSA-N methoxycyclopentane Chemical compound COC1CCCC1 SKTCDJAMAYNROS-UHFFFAOYSA-N 0.000 description 1
- RITHLQKJQSKUAO-UHFFFAOYSA-N methyl 9,10-dihydroxyoctadecanoate Chemical compound CCCCCCCCC(O)C(O)CCCCCCCC(=O)OC RITHLQKJQSKUAO-UHFFFAOYSA-N 0.000 description 1
- YULMNMJFAZWLLN-UHFFFAOYSA-N methylenecyclohexane Chemical compound C=C1CCCCC1 YULMNMJFAZWLLN-UHFFFAOYSA-N 0.000 description 1
- WPHGSKGZRAQSGP-UHFFFAOYSA-N methylenecyclohexane Natural products C1CCCC2CC21 WPHGSKGZRAQSGP-UHFFFAOYSA-N 0.000 description 1
- XSGHLZBESSREDT-UHFFFAOYSA-N methylenecyclopropane Chemical compound C=C1CC1 XSGHLZBESSREDT-UHFFFAOYSA-N 0.000 description 1
- ZUZLIXGTXQBUDC-UHFFFAOYSA-N methyltrioctylammonium Chemical class CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC ZUZLIXGTXQBUDC-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000002113 nanodiamond Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- IQZPDFORWZTSKT-UHFFFAOYSA-N nitrosulphonic acid Chemical compound OS(=O)(=O)[N+]([O-])=O IQZPDFORWZTSKT-UHFFFAOYSA-N 0.000 description 1
- 229960001730 nitrous oxide Drugs 0.000 description 1
- 235000013842 nitrous oxide Nutrition 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- WCVRQHFDJLLWFE-UHFFFAOYSA-N pentane-1,2-diol Chemical compound CCCC(O)CO WCVRQHFDJLLWFE-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910001419 rubidium ion Inorganic materials 0.000 description 1
- 235000019512 sardine Nutrition 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- JIWBIWFOSCKQMA-UHFFFAOYSA-N stearidonic acid Natural products CCC=CCC=CCC=CCC=CCCCCC(O)=O JIWBIWFOSCKQMA-UHFFFAOYSA-N 0.000 description 1
- 229910001427 strontium ion Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical class CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- BJQWBACJIAKDTJ-UHFFFAOYSA-N tetrabutylphosphanium Chemical class CCCC[P+](CCCC)(CCCC)CCCC BJQWBACJIAKDTJ-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical class CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- SZWHXXNVLACKBV-UHFFFAOYSA-N tetraethylphosphanium Chemical class CC[P+](CC)(CC)CC SZWHXXNVLACKBV-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical class C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- BXYHVFRRNNWPMB-UHFFFAOYSA-N tetramethylphosphanium Chemical class C[P+](C)(C)C BXYHVFRRNNWPMB-UHFFFAOYSA-N 0.000 description 1
- ZUEKXCXHTXJYAR-UHFFFAOYSA-N tetrapropan-2-yl silicate Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)OC(C)C ZUEKXCXHTXJYAR-UHFFFAOYSA-N 0.000 description 1
- OSBSFAARYOCBHB-UHFFFAOYSA-N tetrapropylammonium Chemical class CCC[N+](CCC)(CCC)CCC OSBSFAARYOCBHB-UHFFFAOYSA-N 0.000 description 1
- XOGCTUKDUDAZKA-UHFFFAOYSA-N tetrapropylphosphanium Chemical class CCC[P+](CCC)(CCC)CCC XOGCTUKDUDAZKA-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001432 tin ion Inorganic materials 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- UWHZIFQPPBDJPM-BQYQJAHWSA-N trans-vaccenic acid Chemical compound CCCCCC\C=C\CCCCCCCCCC(O)=O UWHZIFQPPBDJPM-BQYQJAHWSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- WQEVDHBJGNOKKO-UHFFFAOYSA-K vanadic acid Chemical compound O[V](O)(O)=O WQEVDHBJGNOKKO-UHFFFAOYSA-K 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate 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
られている(例えば、特許文献1参照。)。この担持触媒においては、触媒活性成分の溶出が防止できない。また、触媒を焼成することにより触媒成分の溶出が抑制されることが知られている(例えば、特許文献2参照。)。
(1)
ポリ酸塩を担体に担持させた前駆体に対し、酸処理を行うことを特徴とするポリ酸担持触媒の製造方法
(2)
担体が無機酸化物であることを特徴とする上記(1)に記載のポリ酸担持触媒の製造方法
(3)
ポリ酸塩溶液とアルコキシ基を有する有機金属化合物とのゾル-ゲル反応によって担体に担持し、得られるゲルを乾燥後あるいは同時に、100〜500℃で焼成する工程を含むことを特徴とする上記(1)〜(2)のいずれかに記載のポリ酸担持触媒の製造方法
(4)
有機金属化合物がケイ素原子を有する金属アルコキサイドである上記(3)に記載のポリ酸担持触媒の製造方法
(5)
酸処理に使用する酸が無機酸、有機酸または固体酸からなる群より選ばれる1種以上である上記(1)〜(4)のいずれかに記載のポリ酸担持触媒の製造方法
(6)
酸処理によって触媒に存在するカチオンがイオン交換されることを特徴とする上記(5)に記載のポリ酸担持触媒の製造方法
(7)
酸処理によるカチオンのイオン交換の割合が蛍光X線分析による結果で70%以上であることを特徴とする上記(6)に記載のポリ酸担持触媒の製造方法
(8)
ポリ酸が活性成分となる液相反応に有効な触媒である上記(1)〜(7)のいずれかに記載のポリ酸担持触媒の製造方法
(9)
ポリ酸が活性成分となる液相反応が過酸化水素を用いる液相酸化反応である上記(8)に記載のポリ酸担持触媒の製造方法
(10)
過酸化水素を用いる液相酸化反応がエポキシ化反応、ジオール化反応、酸化開裂反応、アルデヒド酸化反応である上記(8)〜(9)のいずれかに記載のポリ酸担持触媒の製造方法
(11)
ポリ酸が活性成分となる液相反応が、ブレンステッド酸が有効である液相反応である上記(8)〜(10)のいずれかに記載のポリ酸担持触媒の製造方法
(12)
ブレンステッド酸が有効である液相反応が脂肪族アルコールとのエステル交換反応及びアセタール化反応である上記(8)〜(11)のいずれかに記載のポリ酸担持触媒の製造方法
に関する。
ポリ酸(イソポリ酸を含む。)とは、遷移金属4〜7元素の酸素酸イオンを持つ金属酸化物であり、一般には化学式がMxOy(M:金属元素、O:酸素)で表される単一金属の酸化物クラスターである。ポリ酸は、例えば、周期表5族又は6族元素、V(バナジン酸)、Mo(モリブデン酸)およびW(タングステン酸)の少なくとも一種である場合が多く、中心原子は特に制限されず、Cu、Be、B、Al、Si、Ge、Sn、Ti、Th、N、P、As、Sb、V、Nb、Ta、Cr、Mo、W、S、Se、Te、Mn、I、Fe、Co、Ni、Rh、Os、Ir、Pt、Cuなどであってもよく、上記の化学式中でx=5〜15、y=30〜50の範囲のものが好ましい。好ましいポリ酸の例としては、周期表5族又は6族元素のポリ酸が挙げられ、さらに好ましくはタングステンのポリ酸(タングステン酸)が挙げられる。
より好ましい不飽和脂肪酸および不飽和脂肪酸エステルとしてはパルミトレイン酸、オレイン酸、リノール酸、リシノール酸及びそれらのアルコールエステルが挙げられる。
触媒成分の担持:
タングステン酸ナトリウム10gを蒸留水20gに溶解させた。(A)エタノール26.25gにテトラエトキシシラン26.25gを溶解させた。タングステン酸ナトリウム水溶液に対して(A)を30分で滴下し、得られた溶液を(B)とする。別途、担体としてシリカ(フジシリシアQ−30)10gを蒸留水50gに分散させた分散液を用意し、それに(B)を加え4時間攪拌した。撹拌後、得られたゲルをマッフル炉にて120℃で8時間乾燥させた後、300℃で12時間乾燥させ、触媒前駆体を得た。
酸処理:
上記触媒前駆体10gを蒸留水200gに分散させた。分散液に6%の塩酸70gを加え、30分撹拌した後、ろ過を行った。得られた粉末を120℃で1晩乾燥させ、ポリ酸担持触媒(触媒1)を得た。
タングステン酸10gを蒸留水20gに分散させた。タングステン酸分散液に対して(A)を30分で滴下し、得られた溶液を(C)とする。別途、担体としてシリカ(フジシリシアQ−30)10gを蒸留水50gに分散させた分散液を用意し、それに(C)を加え4時間攪拌した。撹拌後、得られたゲルをマッフル炉にて120℃で8時間乾燥させた後、300℃で12時間乾燥させ、ポリ酸担持触媒(触媒2)を得た。
リンタングステン酸10gを蒸留水20gに溶解させた。(A)エタノール26.25gにテトラエトキシシラン26.25gを溶解させた。リンタングステン酸水溶液に対して(A)を30分で滴下し、得られた溶液を(D)とする。別途、担体としてシリカ(フジシリシアQ−30)10gを蒸留水50gに分散させた分散液を用意し、それに(E)を加え4時間攪拌した。撹拌後、得られたゲルをマッフル炉にて120℃で8時間乾燥させた後、300℃で12時間乾燥させ、ヘテロポリ酸担持触媒(触媒3)を得た。得られた触媒は粉末状の部分と硬く固化した部分とに分かれた。
担体としてシリカの代わりにニオビアを用いた以外は、触媒1と同様にし、ポリ酸担持触媒(触媒4)を得た。
担体としてシリカの代わりにセリアジルコニア(Z1114:触媒学会参照触媒)を用いた以外は、触媒1と同様にし、ポリ酸担持触媒(触媒5)を得た。
担体としてシリカの代わりにセリアジルコニア(Z1006:触媒学会参照触媒)を用いた以外は、触媒1と同様にし、ポリ酸担持触媒(触媒6)を得た。
担体としてシリカの代わりにジルコニア(RC−100:触媒学会参照触媒)を用いた以外は、触媒1と同様にし、ポリ酸担持触媒(触媒7)を得た。
触媒1および触媒2を70℃の過酸化水素100ml中で、3時間撹拌した。撹拌後にろ過を行い、回収した触媒を120℃で1晩乾燥させた。乾燥後得られる粉末を蛍光X線分析により定量し、撹拌前後を比較した。結果を表1に示す。
触媒3に関しては粉末状の部分と硬く固化した部分とに分け過酸化水素の代わりに水を用いた以外は同様にして行い、比較例2,3として表1に示した。
蛍光X線分析による定量は試薬のタングステン酸およびリンタングステン酸を用いて検量線法によって行った。
触媒1を用いて、以下の条件で、オレイン酸メチルの過酸化水素による酸化開裂反応およびジオール化反応を行った。結果を表2に示す。比較例4として触媒前駆体を用いた場合、比較例5として触媒2を用いた場合も表2に併記した。触媒1および2に関しては回収後にリサイクルした場合をそれぞれ実施例3、比較例6として併記した。
オレイン酸メチル:12.5mmol
過酸化水素:50mmol
ターシャリーブタノール:30ml
内部標準(オクタデカン):0.1g
反応温度:70℃
反応時間:17時間
触媒:3g
反応の転化率、生成物の収率に関しては以下の式より算出した。
=100−(残存する原料のモル数/仕込んだ原料のモル数)×100
収率(モル%)(:酸化開裂物に関しては開裂後に等モル生成すると近似した)
=(生成物のモル数/仕込んだ原料のモル数)×100
以下の条件で、オレイン酸メチルの過酸化水素による酸化開裂反応およびジオール化反応を行った。結果を表2に示す。
オレイン酸メチル:12.5mmol
過酸化水素:50mmol
ターシャリーブタノール:30ml
内部標準(オクタデカン):0.1g
反応温度:70℃
反応時間:表中に記載
触媒:3g
上記の触媒を用い、以下の条件で、オレイン酸メチル及びそのジオール化物(9,10−ジヒドロキシステアリン酸メチル)の過酸化水素による酸化開裂反応、アルデヒド酸化反応及びメチルエステル化反応を行った。結果を表4に示す。
原料:12.5mmol
過酸化水素:50mmol
メタノール:30ml
内部標準(オクタデカン):0.1g
反応温度:70℃
反応時間:20時間
触媒:3g
Claims (13)
- ポリ酸塩をポリ酸塩溶液とアルコキシ基を有する有機金属化合物とのゾル−ゲル反応によって担体に担持させた前駆体に対し、酸処理を行うことを特徴とするポリ酸担持触媒の製造方法。
- 担体が無機酸化物であることを特徴とする請求項1に記載のポリ酸担持触媒の製造方法。
- ポリ酸塩溶液とアルコキシ基を有する有機金属化合物とのゾルーゲル反応によって担体に担持し、得られるゲルを乾燥後あるいは同時に、100〜500℃の温度で焼成するという担持方法を用いることを特徴とする請求項1〜2のいずれかに記載のポリ酸担持触媒の製造方法。
- 有機金属化合物がケイ素原子を有する金属アルコキサイドである請求項3に記載のポリ酸担持触媒の製造方法。
- 酸処理に使用する酸が無機酸、有機酸または固体酸からなる群より選ばれる1種以上である請求項1〜4のいずれかに記載のポリ酸担持触媒の製造方法。
- 酸処理によって触媒に存在するカチオンがイオン交換されることを特徴とする請求項5に記載のポリ酸担持触媒の製造方法。
- 酸処理によるカチオンのイオン交換の割合が蛍光X線分析による結果で70%以上であることを特徴とする請求項6に記載のポリ酸担持触媒の製造方法。
- 酸処理によるカチオンのイオン交換の割合が蛍光X線分析による結果で95%以上であることを特徴とする請求項6〜8のいずれかに記載のポリ酸担持触媒の製造方法。
- ポリ酸が活性成分となる液相反応に有効な触媒である請求項1〜8のいずれかに記載のポリ酸担持触媒の製造方法。
- ポリ酸が活性成分となる液相反応が過酸化水素を用いる液相酸化反応である請求項9に記載のポリ酸担持触媒の製造方法。
- 過酸化水素を用いる液相酸化反応がエポキシ化反応、ジオール化反応、酸化開裂反応、アルデヒド酸化反応である請求項9〜10のいずれかに記載のポリ酸担持触媒の製造方法。
- ポリ酸が活性成分となる液相反応が、ブレンステッド酸が有効である液相反応である請求項9〜11のいずれかに記載のポリ酸担持触媒の製造方法。
- ブレンステッド酸が有効である液相反応が脂肪族アルコールとのエステル交換反応及びアセタール化反応である請求項9〜12のいずれかに記載のポリ酸担持触媒の製造方法。
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