SU212232A1 - METHOD OF PREPARATION OF OXIDE-CHROMIUM CATALYST - Google Patents
METHOD OF PREPARATION OF OXIDE-CHROMIUM CATALYSTInfo
- Publication number
- SU212232A1 SU212232A1 SU1045693A SU1045693A SU212232A1 SU 212232 A1 SU212232 A1 SU 212232A1 SU 1045693 A SU1045693 A SU 1045693A SU 1045693 A SU1045693 A SU 1045693A SU 212232 A1 SU212232 A1 SU 212232A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oxide
- preparation
- chromium catalyst
- carrier
- aluminum fluoride
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title description 6
- 229910052804 chromium Inorganic materials 0.000 title description 3
- 239000011651 chromium Substances 0.000 title description 3
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000969 carrier Substances 0.000 description 7
- KLZUFWVZNOTSEM-UHFFFAOYSA-K AlF3 Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 6
- 229910000323 aluminium silicate Inorganic materials 0.000 description 3
- 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 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H Aluminium sulfate Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- PHTQWCKDNZKARW-UHFFFAOYSA-N Isoamyl alcohol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910020169 SiOa Inorganic materials 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- NTGONJLAOZZDJO-UHFFFAOYSA-M disodium;hydroxide Chemical compound [OH-].[Na+].[Na+] NTGONJLAOZZDJO-UHFFFAOYSA-M 0.000 description 1
- 238000002637 fluid replacement therapy Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
Description
Известен способ приготовлени окисно-хромового катализатора на носителе, который предварительно обрабатывают соединением фтора, например фтористым алюминием.A known method for the preparation of an oxide-chromium catalyst on a carrier that is pre-treated with a fluorine compound, for example, aluminum fluoride.
С целью получени стабильного катализатора с равномерным распределением фтористого алюмини , предлагаетс добавл ть его к одному из исходных растворов на стадии осаждени алюмосиликата.In order to obtain a stable catalyst with a uniform distribution of aluminum fluoride, it is proposed to add it to one of the initial solutions at the stage of precipitation of the aluminosilicate.
Введение фтористого алюмини указанным способом позвол ет вести его в структуру пол , исключить потери и равномерно распределить по всему объему катализатора.The introduction of aluminum fluoride in this way allows it to lead to the structure of the floor, eliminate losses and evenly distribute throughout the volume of the catalyst.
Пример. Дл осаждени гел берут 500 мл 1,23 N раствора жидкого стекла с модулем 3() и 190 мл 1,2 N расV Na2O уExample. To precipitate the gel, 500 ml of a 1.23 N liquid glass solution with module 3 () and 190 ml of 1.2 N rac Na2O are taken.
твора сернокислого алюмини , содерл ащего свободную серную кислоту в количестве 55 г/л. В раствор жидкого стекла добавл ют растертый в тонкий пороплок гидратированный AlFs из расчета 5 вес. % на сухой носитель (гидратированный AlFg содержит 61% А1Рз и 39% HzO)- Затем при интенсивном перемешивании к раствору жидкого, стекла с гидратированным AlFs приливают раствор сернокислого алюмини , рН зол 7-8. Оба раствора охлаждают до 5°С. ПолученныйAlum sulphate solution containing 55 g / l free sulfuric acid. Hydrated AlFs pounded into a thin poroplock at the rate of 5 wt. % on dry carrier (hydrated AlFg contains 61% A1Pz and 39% HzO) - Then, with vigorous stirring, a solution of aluminum sulphate is added to a liquid, glass with hydrated AlFs solution, pH pH is 7-8. Both solutions are cooled to 5 ° C. Received by
гель растирают в фарфоровой мельнице, затем подвергают синерезису в кислой среде с рН 1-3 при 25°С в течение 18 час. Отмытый от ионов S04 гель в количестве 100 г обрабатывают 250 мл изоамилового спирта в течение 4 час при температуре 95-130°С. Процент замещени интермицелл рной жидкости составл ет 92%. Носитель сушат на воздухе 18 час в термостате при 140°С - 10 час, прокаливают при 540°С 10 час. В полученном носителе фтористый алюминий равномерно включают в композицию. Носитель содержит АЬОз 7% и SiOa 93%, и имеет следуюшие структурные характеристики: удельна поверхность по БЭТу 730 м-/г; удельный объем пор по бензолу 2,6 средний радиус пор 71 А.the gel is ground in a porcelain mill, then subjected to syneresis in an acidic medium with a pH of 1-3 at 25 ° C for 18 hours. The gel washed from S04 ions in the amount of 100 g is treated with 250 ml of isoamyl alcohol for 4 hours at a temperature of 95-130 ° C. The percentage of submicellar fluid replacement is 92%. The carrier is dried in air for 18 hours in a thermostat at 140 ° C - 10 hours, calcined at 540 ° C for 10 hours. In the resulting carrier, aluminum fluoride is evenly incorporated into the composition. The carrier contains ABOz 7% and SiOa 93%, and has the following structural characteristics: BET specific surface area 730 m- / g; specific pore volume in benzene 2.6 average pore radius 71 A.
Предмет изобретени Subject invention
Способ приготовлени окисно-хромового катализатора дл полимеризации олефинов с применением алюмосиликатного носител , обработанного фтористым алюминием, отличающийс тем, что, с целью получени стабильного катализатора с равномерным распределением фтористого алюмини , последний ввод т в исходные растворы при получении алюмосиликатного носител .A method of preparing an oxide-chromium catalyst for the polymerization of olefins using an aluminosilicate carrier treated with aluminum fluoride, characterized in that, in order to obtain a stable catalyst with a uniform distribution of aluminum fluoride, the latter is introduced into the initial solutions upon receipt of the aluminosilicate carrier.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU212232A1 true SU212232A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2563032C2 (en) * | 2010-02-22 | 2015-09-20 | Юнивейшн Текнолоджиз, Ллк | Catalyst systems and methods for use thereof to produce polyolefin products |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2563032C2 (en) * | 2010-02-22 | 2015-09-20 | Юнивейшн Текнолоджиз, Ллк | Catalyst systems and methods for use thereof to produce polyolefin products |
| RU2634720C1 (en) * | 2010-02-22 | 2017-11-03 | Юнивейшн Текнолоджиз, Ллк | Catalyst systems and methods for use thereof to produce polyolefin products |
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