SU199128A1 - METHOD FOR CLEANING ANHYDROUS CHLORINE ALUMINUM - Google Patents
METHOD FOR CLEANING ANHYDROUS CHLORINE ALUMINUMInfo
- Publication number
- SU199128A1 SU199128A1 SU778184A SU778184A SU199128A1 SU 199128 A1 SU199128 A1 SU 199128A1 SU 778184 A SU778184 A SU 778184A SU 778184 A SU778184 A SU 778184A SU 199128 A1 SU199128 A1 SU 199128A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- column
- chloride
- cleaning
- aluminum chloride
- anhydrous
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 5
- ILXDAXZQNSOSAE-UHFFFAOYSA-N [AlH3].[Cl] Chemical compound [AlH3].[Cl] ILXDAXZQNSOSAE-UHFFFAOYSA-N 0.000 title 1
- 238000004140 cleaning Methods 0.000 title 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical class Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910004028 SiCU Inorganic materials 0.000 description 1
- 229910010165 TiCu Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Description
Безводный хлористый алюминий примен ют в лромын1ленности нефтехимического синтеза в качестве катализатора процессов алкилировани , полимеризации, циклизации и т. д.Anhydrous aluminum chloride is used in the lamer of petrochemical synthesis as a catalyst for the processes of alkylation, polymerization, cyclization, etc.
Известный промышлеиный способ получени безводного хлористого алюмини включает в себ стадию очистки основного вещества от примеси хлоридов кремни (SiCU), титана (TiCU) и железа (FeCla). Дл этого предварительно очищенный от легколетучих хлоридов кремни и титана безводный хлористый алюминий подвергают химическому восстановлению , с целью перевода хлорного железа () в менее летучее хлористое железо (PeCU), также частично в металлическое железо . После такой химической обработки безводный хлористый алюминий очищают сублимацией .A known industrial process for the preparation of anhydrous aluminum chloride includes the step of purifying the base material from impurities of silicon chloride (SiCU), titanium (TiCU), and iron (FeCla). To this end, anhydrous aluminum chloride, previously purified from highly volatile silicon and titanium chlorides, is subjected to chemical reduction, in order to convert ferric chloride () to less volatile ferric chloride (PeCU), also partially in metallic iron. After such a chemical treatment, anhydrous aluminum chloride is purified by sublimation.
Однако при очистке безводного хлористого алюмини таким образом около 20-25%, хлористого алюмини тер етс со шламом, остающимс после сублимации.However, when anhydrous aluminum chloride is thus purified, about 20-25% of aluminum chloride is lost with the sludge remaining after sublimation.
По предлагаемому способу безводный хлористый алюминий, предварительно очищенный от легколетучих хлоридов кремни и титана,, очищают от хлорного железа методом ректификации на одной колонне. Ректификацию провод т в стекл нной или металлической колонне при температуре верха колонны 200°С, низа ее 325-350°С и давлении 2,5-3 атм.According to the proposed method, anhydrous aluminum chloride, previously purified from volatile silicon and titanium chlorides, is purified from ferric chloride by the method of rectification on a single column. The rectification is carried out in a glass or metal column at a column top temperature of 200 ° C, its bottom is 325-350 ° C and a pressure of 2.5-3 atm.
Потери хлористого алюмини при этом составл ют ие более 3-10%.The loss of aluminum chloride in this case does not exceed 3-10%.
Пример. Ректификацию провод т в металлической колонне с высотой ректифицирующей части 300 см, диаметром 7,5 см. Пасадка - керамические кольца Рашига размером 15Х Х15 мм.. Технический безводный хлористый алюминий, предварительно очищенный от хлорида кремни и хлорида титана, ввод т в виде расплава в среднюю часть колонны.Example. The rectification is carried out in a metal column with a rectifying part 300 cm in diameter and 7.5 cm in diameter. Pasad is Raschig's ceramic rings 15X X15 mm in size. Technical anhydrous aluminum chloride, previously purified from silicon chloride and titanium chloride, is introduced as a melt into the middle part of the column.
Темнература верха колонны 200°С, низа ее 325-350°С. Давление в колонне 2,5-3,0 атм. Очищенный нродукт отбирают в верхней части колонны через обогреваемый дросселирующий вентиль. Из нилсней части колонны отвод т кубовый остаток, содерлсащий большую часть хлоридов железа.The temperature of the top of the column is 200 ° C, the bottom of it is 325-350 ° C. The pressure in the column is 2.5-3.0 atm. Purified product is taken at the top of the column through a heated throttling valve. From the bottom of the column, a bottom residue containing most of the iron chloride is removed.
Результаты опытов по очистке безводного хлористого алюмини представлеиы в таблице.The results of experiments on the purification of anhydrous aluminum chloride are presented in the table.
Предмет изобретени Subject invention
Способ очистки безводного хлористого алюлгини , предварительно очищенного от легкоКИПЯН1ИХ хлоридов кремни и титана, а также от примесей железа, отличающийс тем, что, с целью снижени потерь хлористого алюми пн , твердый хлористый алюминий подвергают ректнфикании на одной колонне нри температуре верха колонны 200°С, низа ее 325- 350°С и давлении 2.5---3,0 «тж. Результаты опытов по очистке технического AlClj на металлической полупромышленной колоннеThe method of purification of anhydrous alulginium chloride, previously purified from lightly bonded silicon and titanium chlorides, as well as from iron impurities, characterized in that, in order to reduce the loss of aluminum chloride, solid aluminum chloride is subjected to a single column at a column temperature of 200 ° C, its bottom is 325-350 ° C and the pressure is 2.5 --- 3.0 "ton. The results of experiments on the purification of technical AlClj on a metal semi-industrial column
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU199128A1 true SU199128A1 (en) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2457256A1 (en) * | 1979-05-21 | 1980-12-19 | Aluminum Co Of America | PROCESS FOR SEPARATING ALUMINUM CHLORIDE FROM A GAS MIXTURE OF METAL CHLORIDES |
| US6808695B1 (en) * | 2000-05-22 | 2004-10-26 | Toth Aluminum Corporation | Process for continuously producing aluminum from clays |
| RU2817355C1 (en) * | 2023-07-06 | 2024-04-15 | Ооо "Ланхит" | Filter element for making highly pure anhydrous aluminium chloride |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2457256A1 (en) * | 1979-05-21 | 1980-12-19 | Aluminum Co Of America | PROCESS FOR SEPARATING ALUMINUM CHLORIDE FROM A GAS MIXTURE OF METAL CHLORIDES |
| US6808695B1 (en) * | 2000-05-22 | 2004-10-26 | Toth Aluminum Corporation | Process for continuously producing aluminum from clays |
| RU2817355C1 (en) * | 2023-07-06 | 2024-04-15 | Ооо "Ланхит" | Filter element for making highly pure anhydrous aluminium chloride |
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