RO85637B1 - Procedeu de obtinere a catalizatorilor de cr2o3 pe suport de alumina - Google Patents
Procedeu de obtinere a catalizatorilor de cr2o3 pe suport de aluminaInfo
- Publication number
- RO85637B1 RO85637B1 RO105771A RO10577181A RO85637B1 RO 85637 B1 RO85637 B1 RO 85637B1 RO 105771 A RO105771 A RO 105771A RO 10577181 A RO10577181 A RO 10577181A RO 85637 B1 RO85637 B1 RO 85637B1
- Authority
- RO
- Romania
- Prior art keywords
- catalysts
- preparing
- cr2o3
- isopentane
- natural rubber
- Prior art date
Links
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract 4
- 244000043261 Hevea brasiliensis Species 0.000 abstract 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 abstract 2
- 229920003052 natural elastomer Polymers 0.000 abstract 2
- 229920001194 natural rubber Polymers 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 238000006356 dehydrogenation reaction Methods 0.000 abstract 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 239000002685 polymerization catalyst Substances 0.000 abstract 1
- 238000012721 stereospecific polymerization Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
Landscapes
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Prezenta inventie se refera la un procedeu de obtinere a unor catalizatori de tip Cr2O3-Al2O3, promotati si stabilizati în diferite moduri, avînd proprietati selectiv dirijate, optime pentru efectuarea reactiilor de dehidrogenare într-o singura treapta, a izopentanului sau amestecului de izopentan-izoamilene la izopren. Este cinoscut faptul ca importanta izoprenului monomer a crescut odata cu descoperirea catalizatorilor de polimerizare stereospecifica de tip Ziegler-Natta care au facut posibila în anul 1954, sinteza cis-1,4- poliizoprenului denumit cauciuc natural sintetic. Acesta poateînlocui cu succes cauciucul natural, iar în unele utilizari industriale este de neînlocuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO105771A RO85637B1 (ro) | 1981-11-11 | 1981-11-11 | Procedeu de obtinere a catalizatorilor de cr2o3 pe suport de alumina |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO105771A RO85637B1 (ro) | 1981-11-11 | 1981-11-11 | Procedeu de obtinere a catalizatorilor de cr2o3 pe suport de alumina |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO85637A2 RO85637A2 (ro) | 1984-10-31 |
| RO85637B1 true RO85637B1 (ro) | 1984-11-30 |
Family
ID=20110645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO105771A RO85637B1 (ro) | 1981-11-11 | 1981-11-11 | Procedeu de obtinere a catalizatorilor de cr2o3 pe suport de alumina |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO85637B1 (ro) |
-
1981
- 1981-11-11 RO RO105771A patent/RO85637B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO85637A2 (ro) | 1984-10-31 |
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