SU31007A1 - The method of distillation of crude products of benzene chlorination - Google Patents
The method of distillation of crude products of benzene chlorinationInfo
- Publication number
- SU31007A1 SU31007A1 SU108632A SU108632A SU31007A1 SU 31007 A1 SU31007 A1 SU 31007A1 SU 108632 A SU108632 A SU 108632A SU 108632 A SU108632 A SU 108632A SU 31007 A1 SU31007 A1 SU 31007A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- distillation
- benzene
- crude products
- chlorination
- products
- Prior art date
Links
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 title description 18
- 238000004821 distillation Methods 0.000 title description 10
- 238000005660 chlorination reaction Methods 0.000 title description 6
- 238000000034 method Methods 0.000 title description 3
- 239000012043 crude product Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000004508 fractional distillation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229940059864 chlorine containing product ectoparasiticides Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
При получении в производстве продуктов хлорировани бензола, при использовании технического бензола, содержащего некоторые неустранимые примеси, и при применении в процессе хлорировани железного катализатора, сырые продукты хлорировани после устранени свободного хлористого водорода, уносимого ими (посредством обработки щелочными агентами, обычно сухой содой ) подвергаютс далее фракционированной разгонке дл разделени разно кип щих фракций-бензола, хлорбензола и полихлоридов. Далее фракции, если требуетс , то под разрежением, превращаютс также фракционированной разгонкой , в технические индивидуумы.When producing benzene in the production of chlorination products, using technical benzene containing some unrecoverable impurities, and when using an iron catalyst in the chlorination process, the raw chlorination products are further subjected to elimination of free hydrogen chloride that is carried away by treatment with alkaline agents, usually with dry soda. fractional distillation for the separation of differently boiling fractions of benzene, chlorobenzene and polychlorides. Further, fractions, if required, under vacuum, are also converted by fractional distillation into technical individuals.
В производстве нередко наблюдаетс -как при начальной разгойке, так и при последующих разгонках фракций особенно высококип щих (полихлоридной), по вление в паровой фазе хлористого водорода , вредно вли ющего на аппаратуру, здоровье работающих и затрудн ющего нормальное проведение производственного процесса. Причиной по влени хлористого водорода вл етс , повидимому, отщепление его элементов из органиче144In production, it is often observed, both during initial firing and during subsequent distillations of fractions of especially high boilers (polychloride), the appearance in the vapor phase of hydrogen chloride, which adversely affects the equipment, the health of workers and impedes the normal conduct of the production process. The reason for the appearance of hydrogen chloride is apparently the splitting of its elements from organic
. ... ..
ских соединений, вход щих в состав технических продуктов хлорировани , вследствие повышени температур и св занных с этим влений конденсации или других превращений.compounds included in the composition of the technical products of chlorination due to an increase in temperature and the associated phenomena of condensation or other transformations.
Авторами найдено, что введение в перегонный аппарат, вместе с перегон емым техническим продуктом (хлорированным бензолом, полихлоридами и т. п.) едкого натра в мелко размельченном состо нии или в виде водного концентрированного раствора, приводит при перегонке к устранению хлористого водорода из паровой фазы: в качестве отгона получаютс лишь органические хлоросодержащие продукты и вода, могущие быть устраненными остаиванием. Присутствие воды как в перегонном кубе, так и в паровой фазе не вызывает в этом случае никаких добавочных УМмических изменений в обрабатываемом матариале. Количество едкого натра, соответственно количество его водного раствора, может мен тьс в зависимости от большей или меньшей склонности перегон ющегос материала к отщеплению хлористого водорода, соответственно бывшему внем содержанию активных хлоросодержащих примесей. Желательно в производствах, где применение мелкодробленного каустика затруднительно и удобнее применение его концентрированного раствора, сохранение до конца перегонки в кубе некоторого количества воды дл того, чтобы имелась больша поверхность соприкосновени между ещаы натром и хлоропродуктами . The authors found that the introduction into the distillation apparatus, together with the distilled technical product (chlorinated benzene, polychlorides, etc.) caustic soda in a finely divided state or in the form of an aqueous concentrated solution, leads to the distillation to the elimination of hydrogen chloride from the vapor phase : As distillation, only organic chlorine-containing products and water can be obtained that can be eliminated by sedimentation. The presence of water in both the still and in the vapor phase does not cause in this case any additional changes in the treated material. The amount of caustic soda, respectively, the amount of its aqueous solution, may vary depending on the greater or lesser tendency of the distillation material to cleave hydrogen chloride, respectively, according to the content of active chlorine-containing impurities. It is desirable in industries where the use of finely crushed caustic is difficult and more convenient to use its concentrated solution, keeping a certain amount of water in a cube until the end of the distillation in order to have a large contact surface between sodium and chlorine products.
Предмет изобретени .The subject matter of the invention.
Способ разгонки сырых продуктов хлори:ровани бензола, Ъсвобожденных обычным путем от хлора и хлористого водорода, или фракций от разгонки продуктов хлорировани бензола, отличающийс тем, что перегонку ведут в присутствии измельченного едкого натра или его концентрированноговодного раствора.A method for the distillation of crude chlorine products: benzene, liberated in the usual way from chlorine and hydrogen chloride, or fractions from the distillation of benzene chlorination products, characterized in that the distillation is carried out in the presence of powdered caustic soda or its concentrated concentrated solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU108632A SU31007A1 (en) | 1932-05-05 | 1932-05-05 | The method of distillation of crude products of benzene chlorination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU108632A SU31007A1 (en) | 1932-05-05 | 1932-05-05 | The method of distillation of crude products of benzene chlorination |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU701419119A Addition SU710105A2 (en) | 1970-03-26 | 1970-03-26 | Contact-free phase distributing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU31007A1 true SU31007A1 (en) | 1933-07-31 |
Family
ID=48348366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU108632A SU31007A1 (en) | 1932-05-05 | 1932-05-05 | The method of distillation of crude products of benzene chlorination |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU31007A1 (en) |
-
1932
- 1932-05-05 SU SU108632A patent/SU31007A1/en active
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