SU143393A1 - - Google Patents
Info
- Publication number
- SU143393A1 SU143393A1 SU678449A SU678449A SU143393A1 SU 143393 A1 SU143393 A1 SU 143393A1 SU 678449 A SU678449 A SU 678449A SU 678449 A SU678449 A SU 678449A SU 143393 A1 SU143393 A1 SU 143393A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- methylpentene
- kip
- reactor
- phosphoric acid
- fraction
- Prior art date
Links
- WWUVJRULCWHUSA-UHFFFAOYSA-N 2-methylpent-1-ene Chemical compound CCCC(C)=C WWUVJRULCWHUSA-UHFFFAOYSA-N 0.000 description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- JMMZCWZIJXAGKW-UHFFFAOYSA-N 2-methylpent-2-ene Chemical compound CCC=C(C)C JMMZCWZIJXAGKW-UHFFFAOYSA-N 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- WHFQAROQMWLMEY-UHFFFAOYSA-N Propylene dimer Chemical compound CC=C.CC=C WHFQAROQMWLMEY-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Известен способ получени 2-метилпентена-1 путем селективной димеризации пропилена по Циглеру с количественным выходом.A known method for producing 2-methylpentene-1 by selective dimerization of propylene at Ziegler in quantitative yield.
Предлагаемый способ получени отличаетс тем, что 2-метилпептен-2 получают селективной изомеризацией 2-метилпентена-1 в присутствии кислотных катализаторов. В качестве катализаторов примен ют 400/о-ную серную кислоту или фосфорную кислоту на алюмосиликате . Способ позволит получить продукт без существенного образовани побочных продуктов .The proposed production method is characterized in that 2-methyl-peptene-2 is obtained by selective isomerization of 2-methyl pentene-1 in the presence of acid catalysts. As catalysts, 400 / o-sulfuric acid or phosphoric acid on aluminosilicate is used. The method will allow to obtain a product without significant formation of by-products.
Новый способ получени может быть использован дл промышленного производства 2-метилпентена, из которого окислением получают спирты и кетоны.A new method of production can be used for the industrial production of 2-methylpentene, from which alcohols and ketones are obtained by oxidation.
Пример 1. В колбу, снабженную капельной воронкой и мешалкой, загружают 235 мл 400/о-ной серной кислоты (удельный вес 303), затем по капл м при перемешивании добавл ют 100 г 2-метилпентеиа-1. Реакцию провод т при 25-30°С и заканчивают через 2 час. По окончании процесса углеводородный слой отдел ют , нейтрализуют раствором соды, промывают водой и разгон ют на ректификационной колонке (50 теоретических тарелок). Получают 31,5 г исходного 2-метилпентена-1 (т. кип. 60,0-62,0°С при 760 мм рт. ст.) и 68,3 г 2-метилпентена-2 (т. кип. 67,0-67,5°С при 760 мм рт. ст.) с rf204 0,6892, 1,3995 (литературные данные: т. кип. 67,3- 67,5°С при 760 мм рт. ст., 20 0,6904, л Example 1. In a flask equipped with an addition funnel and a stirrer, 235 ml of 400 / o-sulfuric acid (specific gravity 303) is charged, then 100 g of 2-methylpentene-1 is added dropwise with stirring. The reaction is carried out at 25-30 ° C and is completed after 2 hours. At the end of the process, the hydrocarbon layer is separated, neutralized with a solution of soda, washed with water and dispersed on a distillation column (50 theoretical plates). Get 31.5 g of the original 2-methylpentene-1 (t. Kip. 60,0-62,0 ° C at 760 mm Hg. Art.) And 68.3 g of 2-methylpentene-2 (t. Kip. 67, 0-67.5 ° C at 760 mm Hg. Art. With rf204 0.6892, 1.3995 (literature data: bp 67.3- 67.5 ° C at 760 mm Hg. 20 0.6904, l
1,4005).1,4005).
Пример 2. В реактор, включенный в установку непрерывного действи и представл ющий собой трубу из стали ЗЯ-1Т диаметром 20 мм и высотой 500 мм, загружают 60 мм катализатора - фосфорную кислоту на алюмосиликате с общим содержание.м фосфорной кислоты 44,50/0 (свободной - 39,2о/о). Сверху и снизу катализатор засыпают кварцевым стеклом. Исходный 2-метилпентен-1 насосом высокого давлени подают в подогреватель , где нагревают до 120-140°С. Реактор и подогреватель имеют электрический обогрев . Продукты реакции по выходе из реактора проход т холодильник и собираютс в приемнике.Example 2. A 60 mm catalyst-phosphoric acid on an aluminosilicate with a total content of phosphoric acid of 44.50 / 0 is loaded into a reactor, included in a continuous installation, which is a pipe made of ZN-1T steel with a diameter of 20 mm and a height of 500 mm. (free - 39.2 o / o). Above and below the catalyst is filled with quartz glass. The starting 2-methylpentene-1 high pressure pump is fed to a preheater, where it is heated to 120-140 ° C. The reactor and the heater are electrically heated. The reaction products, after leaving the reactor, pass through a cooler and are collected in a receiver.
При пропускании 2-метилпентена-1 через реактор при давлении 20-30 ата со скоростью 2 мл/мл кат. час получают 95-97«/о фракции димера пропилена с т. кип. 60-70°С и 3-50/0 фракции с т. кип. 70°С.When passing 2-methylpentene-1 through the reactor at a pressure of 20-30 at a speed of 2 ml / ml cat. hour receive 95-97 "/ o fraction of propylene dimer with m. Kip. 60-70 ° C and 3-50 / 0 fraction with t. Kip. 70 ° C.
Фракци димера содержит 2-метилпентеиа-1 400/0 и 2-метилпентена-2 60о/о.The dimer fraction contains 2-methylpentene-1 400/0 and 2-methylpentene-2 60o / o.
Непрореагировавший 2-метилпеитен-1 вновь возвращают в процесс. Выход 2-метилпентена-2 по отношению к исходному 2-метилпентен-1 составл ет около 60о/о, а по отношению к прореагировавшему - близок к количественному .Unreacted 2-methylpeiten-1 is returned to the process. The yield of 2-methylpentene-2 is about 60 o / o with respect to the starting 2-methylpentene-1, and close to the quantitative with respect to the reacted one.
Предмет изобретени Subject invention
1. Способ получени 2-метилпентена-2, отличающийс тем, что его получают селек1. A method of producing 2-methylpentene-2, characterized in that it is obtained by selec
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU143393A1 true SU143393A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3277191A (en) * | 1963-03-22 | 1966-10-04 | Shell Oil Co | Terminal isoolefin isomerization and selective hydration to tertiary alcohol with interstage fractionation of paraffin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3277191A (en) * | 1963-03-22 | 1966-10-04 | Shell Oil Co | Terminal isoolefin isomerization and selective hydration to tertiary alcohol with interstage fractionation of paraffin |
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