SU392687A1 - Method for producing sulfoxides - Google Patents
Method for producing sulfoxidesInfo
- Publication number
- SU392687A1 SU392687A1 SU1679796A SU1679796A SU392687A1 SU 392687 A1 SU392687 A1 SU 392687A1 SU 1679796 A SU1679796 A SU 1679796A SU 1679796 A SU1679796 A SU 1679796A SU 392687 A1 SU392687 A1 SU 392687A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sulfoxides
- producing
- producing sulfoxides
- oxidation
- solution
- Prior art date
Links
- 150000003462 sulfoxides Chemical class 0.000 title description 6
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000000034 method Methods 0.000 description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 150000003568 thioethers Chemical class 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- YQHLDYVWEZKEOX-UHFFFAOYSA-N cumene hydroperoxide Chemical compound OOC(C)(C)C1=CC=CC=C1 YQHLDYVWEZKEOX-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002837 defoliant Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Изобретение относитс к усовершенствованию способа получени сульфоксидов.The invention relates to an improvement in the process for the preparation of sulfoxides.
Сульфоксиды вл ютс перспективными флотореагентами и экстрагентами дл гидрометаллургической промышленности, а также биологически активными веш,ествами, перспективными дл использовани в сельском хоз йстве в качестве десикантов, дефолиантов .Sulphoxides are promising flotation agents and extractants for the hydrometallurgical industry, as well as biologically active substances that are promising for use in agriculture as desiccants, defoliants.
Известен способ получени сульфоксидов окислением сульфидов с использованием в качестве окислител 28-30%-него раствора перекиси водорода в присутствии кислот в качестве катализатора.A known method for producing sulfoxides by oxidizing sulfides using a 28-30% hydrogen peroxide solution in the presence of acids as a catalyst as an oxidant.
(При осуществлении известного способа возникает повышенна коррозионность среды , а также неудобство работы с растворами перекиси водорода ввиду возможности ее спонтанного разложени при соприкосновении с металлическими част ми аппаратуры и при транспортировке.(In the implementation of the known method, an increased corrosivity of the medium occurs, as well as the inconvenience of working with hydrogen peroxide solutions due to the possibility of its spontaneous decomposition in contact with the metal parts of the equipment and during transportation.
Дл упрощени технологического процесса и повышени степени чистоты продукта предложен способ получени сульфоксидов окислением сульфидов в пенноэмульсионном режиме с использованием в качестве окислител раствора органической гидроперекиси в органическом растворителе, и процесс ведут лри 20-120° С; реакцию окислени провод тTo simplify the process and increase the purity of the product, a method has been proposed for producing sulfoxides by oxidation of sulphides in foam emulsion mode using an organic hydroperoxide solution in an organic solvent as an oxidant, and the process is carried out at 20-120 ° C; the oxidation reaction is carried out
в присутствии каталитических добавок щелочей , кислот или без них.in the presence of catalytic additives alkali, acids or without them.
:В реакции иопользуют индивидуальные сульфиды, или концентраты сульфидов или нефт ные дистгктл ты сернистых нефтей.: In the reaction, individual sulphides are used, or sulphide concentrates or sulphurous oil distillates are used.
Пример 1. Фракцию арланской нефти с т. кип. 190-360° С и содержанием общей серы 2,3%, сульфидной серы 1,3% окисл ют в эмульсионно-пенном реакторе при кратности вспенивани 4. Через 84,3 г дистилл та дл его вспенивани пропускают воздух со скоростью в поперечном сечении 0,05 м/сек, после чего дистилл т нагревают до 115° С и, не прекраща вспенивание в указанном режиме, прибавл ют раствор 2 г NaOH в 10 г воды и стехиометрическое количество, равное 18,1 г раствора гидроперекиси изопропилбензола с содержанием гидроперекиси изопропилбензола 28,73%, изопронилбензола 68,26%, ацетофенона 0,5%, диметилфенилкарбинола 2,27%. Такой раствор гидроперекиси вл етс полупродуктом производства фенола и ацетона . После окислени в этом режиме в течение 15 мин смесь отстаивают. После отгонки изопропилбензола и ацетофенона от оксидата дизтоплива при нагревании в вакууме водоструйного насоса содержание сульфоксидной серы в оксидате составл ет 0,65%. Глубина окислени до сульфоксидов 50%. ОрганичеExample 1. The fraction of Arlan oil with t. Kip. 190-360 ° C and a total sulfur content of 2.3%, sulfide sulfur 1.3% is oxidized in an emulsion-foam reactor at a foaming ratio of 4. Air is passed through 84.3 g of distillate for its foaming at a rate of 0 , 05 m / s, after which the distillate is heated to 115 ° C and, without stopping foaming in the indicated mode, a solution of 2 g of NaOH in 10 g of water and a stoichiometric amount equal to 18.1 g of isopropyl benzene hydroperoxide solution containing isopropyl benzene hydroperoxide are added 28.73%, isopronylbenzene 68.26%, acetophenone 0.5%, dimethylphenylcarbino la 2.27%. Such a solution of hydroperoxide is a semi-product of the production of phenol and acetone. After oxidation in this mode for 15 minutes, the mixture is settled. After distillation of isopropylbenzene and acetophenone from diesel oxidate when heated under vacuum of a water jet pump, the content of sulfoxide sulfur in the oxidate is 0.65%. The depth of oxidation to sulfoxides is 50%. Organic
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1679796A SU392687A1 (en) | 1971-07-30 | 1971-07-30 | Method for producing sulfoxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1679796A SU392687A1 (en) | 1971-07-30 | 1971-07-30 | Method for producing sulfoxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU392687A1 true SU392687A1 (en) | 1975-06-05 |
Family
ID=20482433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1679796A SU392687A1 (en) | 1971-07-30 | 1971-07-30 | Method for producing sulfoxides |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU392687A1 (en) |
-
1971
- 1971-07-30 SU SU1679796A patent/SU392687A1/en active
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