SU166034A1 - METHOD OF OBTAINING PHTHALIC ANHYDRIDE - Google Patents
METHOD OF OBTAINING PHTHALIC ANHYDRIDEInfo
- Publication number
- SU166034A1 SU166034A1 SU777973A SU777973A SU166034A1 SU 166034 A1 SU166034 A1 SU 166034A1 SU 777973 A SU777973 A SU 777973A SU 777973 A SU777973 A SU 777973A SU 166034 A1 SU166034 A1 SU 166034A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phthalic anhydride
- tetralin
- obtaining phthalic
- obtaining
- yield
- Prior art date
Links
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Chemical compound C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 title description 9
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N Tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 5
- 230000003197 catalytic Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 125000002619 bicyclic group Chemical group 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- HYBBIBNJHNGZAN-UHFFFAOYSA-N Furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium(0) Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N Chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 1
- NNBZCPXTIHJBJL-UHFFFAOYSA-N Decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006900 dealkylation reaction Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Description
Известны способы получеии фталевого ангидрида парофазным каталитическим окислением нафталина иа ванадиевых катализаторах при 360-430°С. Сырьем дл нолучеии фталевого ангидрида могут служить также о-ксилол, тетралин, хризен, ниреи и др. При этом выход фталевого ангидрида невысок - 25-300/0 вес.Known methods for the preparation of phthalic anhydride by the vapor-phase catalytic oxidation of naphthalene and vanadium catalysts at 360-430 ° C. O-xylene, tetralin, chrysene, nirei, etc. can also be used as raw materials for phthalic anhydride. At the same time, the yield of phthalic anhydride is low - 25-300 / 0 wt.
Предлагаетс способ получени фталевого ангидрида иа основе фракций, полученных фурфурольной экстракцией каталитического газойл . Дл увеличени выхода эти фракции подвергают гидродеалкилированию при 500-650°С, давлеиии водорода 80-100 атм ца алюмо-кобальто-молибдеиовом или другом катализаторе гидрировани , а выделенную тетралиновую фракцию окисл ют во фталевый ангидрид. Выход его составл ет 65- 700/0 вес.A method for producing phthalic anhydride based on fractions obtained by furfural extraction of catalytic gas oil is proposed. To increase the yield, these fractions are subjected to hydrodealkylation at 500–650 ° C, hydrogen pressure is 80–100 atm of alumino-cobalt – molybdeic or another hydrogenation catalyst, and the separated tetralin fraction is oxidized to phthalic anhydride. Its output is 65-700 / 0 wt.
Пример. Бралн 100 г бициклической ароматики , выделенной из каталитического газойл фурфурольиой экстракцией, и подвергали процессу одновременного деалкилировани и гидрировани (температура 350°С, давлеиие водорода 100 атм, скорость иодачи Example. Braln 100 g of bicyclic aromatics isolated from catalytic gas oil by furfural extraction was subjected to simultaneous dealkylation and hydrogenation (temperature 350 ° С, pressure of hydrogen 100 atm, iodine rate
сырь 1 кг/л час, мол рное соотношеиие водорода к сырью 15). Катализатор алюмо-кобальто-молибденовый . Получеио 94 г тетралиновой фракции, содержащей 73 г тетралина , И, 5 г декалина и 9,5 г непрореагировавшей бициклической ароматики.raw materials 1 kg / l hour, molar ratio of hydrogen to raw materials 15). Alumino-cobalto-molybdenum catalyst. Obtain 94 g of tetralin fraction containing 73 g of tetralin, I, 5 g of decalin and 9.5 g of unreacted bicyclic aromatics.
80 г тетралиновой фракции окисл лось над плавленой п тиокисью ванади при температуре 380°С, объемной скорости 2500 час i и соотношении веса воздуха к весу сырь 47. Выход фталевого ангидрида 65,7.80 g of tetralinic fraction was oxidized over fused vanadium dioxide at a temperature of 380 ° C, a space velocity of 2500 hours i and a ratio of air weight to weight of raw material 47. Phthalic anhydride yield 65.7.
Предмет и з о б р е т е и и Subject and d on and e and
Способ получени фталевого ангидрида окислением нефт ного сырь кислородом воздуха иа ванадиевых катализаторах при температуре 360-430°С, отличающийс тем, что, с целью увеличени выхода фталевого ангидрида, бициклическую ароматику каталитического газойл подвергают гидродеалкилироваиню при давлении 80-100 атм, температуре 500-650°С иа катализаторах гидрировани с последующим окислением выделенной тетралиновой фракции.The method of producing phthalic anhydride by oxidizing crude oil with air oxygen and vanadium catalysts at a temperature of 360-430 ° C, characterized in that in order to increase the yield of phthalic anhydride, the bicyclic aromatics of catalytic gas oil are hydrodealkylated at a pressure of 80-100 atm and a temperature of 500-650 ° C with hydrogenation catalysts followed by oxidation of the isolated tetralin fraction.
Publications (1)
Publication Number | Publication Date |
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SU166034A1 true SU166034A1 (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1315854C (en) * | 2005-01-20 | 2007-05-16 | 上海交通大学 | Methyl-phospho-acid pentaerythritol ester with hydroxy and its preparation |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1315854C (en) * | 2005-01-20 | 2007-05-16 | 上海交通大学 | Methyl-phospho-acid pentaerythritol ester with hydroxy and its preparation |
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