SU159510A1 - The method of obtaining phthalic anhydride - Google Patents
The method of obtaining phthalic anhydrideInfo
- Publication number
- SU159510A1 SU159510A1 SU800476A SU800476A SU159510A1 SU 159510 A1 SU159510 A1 SU 159510A1 SU 800476 A SU800476 A SU 800476A SU 800476 A SU800476 A SU 800476A SU 159510 A1 SU159510 A1 SU 159510A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phthalic anhydride
- obtaining phthalic
- obtaining
- naphthalene
- raw material
- 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 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003197 catalytic Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006900 dealkylation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Description
Предмет изобретени Subject invention
1. Способ получени фталевого ангидрида па основе нафталина путем парофазного каталитического окислени кислородом воздуха при повышенной температуре, отличающийс тем, что, с целью увеличени выхода целевого продукта и степени использовани нафталина, а также расширени сырьевой базы , окислению подвергают промыщленпую нафталиновую фракцию деалкилировани нефт ного сырь , идущего иа нолучение нафталина .1. A method of producing phthalic anhydride on a naphthalene base by vapor phase catalytic oxidation of air at elevated temperature with oxygen, characterized in that, in order to increase the yield of the target product and the degree of use of naphthalene, as well as expand the raw material base, the naphthalene fraction of the dealkylation of the crude oil is oxidized going to get naphthalene.
2. Способ по н. 1, отличающийс тем, что, с целью интенсификации процесса, окисление ведут при температуре 380-390С, объемной скорости 1200-2000 и соотношении воздух: сырье (50-f60) : 1 по весу.2. The method according to n. 1, characterized in that, in order to intensify the process, the oxidation is carried out at a temperature of 380-390 ° C, a space velocity of 1200-2000 and an air: raw material ratio (50-f60): 1 by weight.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU159510A1 true SU159510A1 (en) | 1963-12-28 |
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