SU439296A1 - Method of separating small amounts of low boiling impurities - Google Patents
Method of separating small amounts of low boiling impuritiesInfo
- Publication number
- SU439296A1 SU439296A1 SU1657372A SU1657372A SU439296A1 SU 439296 A1 SU439296 A1 SU 439296A1 SU 1657372 A SU1657372 A SU 1657372A SU 1657372 A SU1657372 A SU 1657372A SU 439296 A1 SU439296 A1 SU 439296A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- small amounts
- boiling impurities
- low boiling
- separating small
- inert gas
- Prior art date
Links
- 238000009835 boiling Methods 0.000 title description 8
- 239000012535 impurity Substances 0.000 title description 7
- 239000011261 inert gas Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 5
- 238000004821 distillation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- QNZQVZOIWQLQJK-UHFFFAOYSA-N CC=1C(=C(C=CC=1)[SiH](Cl)Cl)C Chemical compound CC=1C(=C(C=CC=1)[SiH](Cl)Cl)C QNZQVZOIWQLQJK-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Description
1one
Изобретение относитс к области отделени малых количеств легкокип щих нримесей путем ректификапии при полном орошении и может быть использовапо дл получени продуктов высокой степени чистоты.The invention relates to the field of separating small amounts of low-boiling mixtures by distillation with full irrigation and can be used to obtain products of high purity.
Известен способ отделени малых количество легкокип щих примесей по авт. св. № 257438, в частности диметилфенилдихлорсилана периодической ректификацией, путем копцентрировани примесей в ректификационной колонне и дефлегматоре при полном орошении с последующим выведением смеси из колонны и дефлегматора в отдельный сборник , а пара из куба - в конденсатор (мину колонну).There is a known method for separating small amounts of light boiling impurities according to ed. St. No. 257438, in particular dimethylphenyldichlorosilane by periodic rectification, by concentrating impurities in a distillation column and a reflux condenser with full irrigation, followed by removing the mixture from the column and reflux condenser into a separate collection, and the steam from the cube into a condenser (mine column).
Предлагаемый способ отличаетс от известного тем, что через поток флегмы пропускают инертный газ. Это позвол ет повысить степень чистоты продукта.The proposed method differs from that in that an inert gas is passed through the reflux stream. This makes it possible to increase the purity of the product.
При осуществлении способа смесь продуктов , содержащую легкокип щие примеси, загружают в куб насадочной ректификационной колонны и производ т нагрев. После выводаIn the process, a mixture of products containing boiling impurities is loaded into a cube of a packed distillation column and heated. After withdrawal
колонны на режим с минимальной нагрузкой по пару и жидкости без отбора продукта в куб колонны подают сухой инертный газ и осуществл ют отдувку легкокип щих примесей . Инертный газ проходит через ректификационную колонну, противоточный дефлегматор , рассольный холодильник и сбрасываетс в атмосферу.the columns are operated with a minimum steam load and liquid without taking the product into the bottom of the column; dry inert gas is supplied and the boiling of light boiling impurities is carried out. The inert gas passes through a distillation column, a countercurrent reflux condenser, and a brine cooler and is discharged into the atmosphere.
Колонна работает без отбора с поддувкой инертным газом до тех нор, пока содержание легкокип щего компонента в дистиллате не станет меньше 0,005%. После отделени легкокип щих примесей подачу инертного газа прекращают и ректификацию продолжают обычным способом.The column operates without inert gas blow-through until the content of the light component in the distillate is less than 0.005%. After separation of low-boiling impurities, the supply of inert gas is stopped and rectification is continued in the usual way.
Предмет изобретени Subject invention
Способ отделени малых количеств легкокип щих примесей по авт. св. N° 257438, о тличающийс тем, что, с целью повыщени его эффективности, через поток флегмы пропускают инертный газ.A method for separating small amounts of low-boiling impurities according to ed. St. N ° 257438, differing in the fact that, in order to increase its efficiency, an inert gas is passed through the reflux stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1657372A SU439296A2 (en) | 1971-05-18 | 1971-05-18 | The method of separation of small quantities of low-boiling impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1657372A SU439296A2 (en) | 1971-05-18 | 1971-05-18 | The method of separation of small quantities of low-boiling impurities |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU257438 Addition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU439296A1 true SU439296A1 (en) | 1974-08-15 |
| SU439296A2 SU439296A2 (en) | 1974-08-15 |
Family
ID=20475444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1657372A SU439296A2 (en) | 1971-05-18 | 1971-05-18 | The method of separation of small quantities of low-boiling impurities |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU439296A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256258A (en) * | 1991-11-27 | 1993-10-26 | The Dow Chemical Company | Removal of low-boiling fractions from high temperature heat transfer systems |
| US5352336A (en) * | 1993-06-17 | 1994-10-04 | The Dow Chemical Company | Removal of low-boiling fractions from high temperature heat transfer systems |
-
1971
- 1971-05-18 SU SU1657372A patent/SU439296A2/en active
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