SU130502A1 - The method of obtaining anhydrous ethylene chlorohydrin - Google Patents
The method of obtaining anhydrous ethylene chlorohydrinInfo
- Publication number
- SU130502A1 SU130502A1 SU643690A SU643690A SU130502A1 SU 130502 A1 SU130502 A1 SU 130502A1 SU 643690 A SU643690 A SU 643690A SU 643690 A SU643690 A SU 643690A SU 130502 A1 SU130502 A1 SU 130502A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ethylene chlorohydrin
- anhydrous ethylene
- disodium phosphate
- chlorohydrin
- obtaining anhydrous
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Получение безводного этиленхлоргидрина путем гидрохлорировани окиси этилена в среде этиленхлоргидрина известно.The preparation of anhydrous ethylene chlorohydrin by hydrochlorinating ethylene oxide in ethylene chlorohydrin is known.
Описываемый способ получени безводного этиленхлоргидрина в отличие от известного повышает выход продукта и снижает коррозию аппаратуры . Это достигаетс тем, что процесс ведут в присутствии динатрийфосфата .The described method for the preparation of anhydrous ethylene chlorohydrin, in contrast to the known method, increases the yield of the product and reduces the corrosion of the apparatus. This is achieved by the fact that the process is carried out in the presence of disodium phosphate.
Способ осуп ествл ют следующим образом.The method is understood as follows.
В стекл нный реактор, снабженный мешалкой, внутренним змеевиком дл нагревани и охлаждени , двум газоподвод щими трубками и боко1вым крапом дл слива безводного этиленхлоргидрина, загружают 50 мл этиленхлоргидрина, динатрийфосфат в количестве 0,1-0,5% к весу этилепхлОргидрина, и по реометрам непрерывно подают сухой хлористый водород и окись этилена в мол рном соотношении 1 : 1,3 (1,5). Температуру реакции поддерживают равной 50. Размеры реактора и скорость подачи реагентов выбирают так, чтобы врем пребывани продукта в реакционной зоне составл ло около 10 час. В процессе реакции непрерывно прибавл етс хлорное железо из расчета 0,4-0,6 гДг.In a glass reactor equipped with a stirrer, an internal coil for heating and cooling, two gas supply tubes and side racks for draining anhydrous ethylene chlorohydrin, 50 ml of ethylene chlorohydrin, disodium phosphate in an amount of 0.1-0.5% by weight of ethylene chlorohydrin is added, and dispersed phosphate in the amount of 0.1–0.5% by weight of ethylene chlorohydrin and disodium phosphate in an amount of 0.1–0.5% by weight of ethylene chlorohydrin and disodium phosphate in an amount of 0.1–0.5% by weight of ethylene chlorohydrin and disodium phosphate in an amount of 0.1–0.5% by weight of ethylene chlorine; dry hydrogen chloride and ethylene oxide are continuously fed in a molar ratio of 1: 1.3 (1.5). The reaction temperature is maintained at 50. The dimensions of the reactor and the feed rate of the reactants are chosen so that the residence time of the product in the reaction zone is about 10 hours. During the reaction, ferric chloride is continuously added at the rate of 0.4-0.6 gDg.
Через 10 час. отбирают некоторое количество продукта дл ректификации , которую ведут на насадочной колонке при остаточном давлении 100 мм рт. ст. Отбирают чистый безводный этиленхлоргидрин с т. кип. 70-71°.In 10 hours take some amount of product for rectification, which lead to a packed column with a residual pressure of 100 mm RT. Art. Pure anhydrous ethylene chlorohydrin is collected from t. Kip. 70-71 °.
Роль динатрийфосфата сводитс к св зыванию иопов железа, которые могут присутствовать в реакционной среде. Применение динатрийфосфата дает возможность проводить реакцию в стальной пезащиш,енной аппаратуре. Выход безводного этиленхлоргидрина достигает 96- 97%, вместо 50-60% но известному способу.The role of disodium phosphate is reduced to the binding of iron ioops, which may be present in the reaction medium. The use of disodium phosphate makes it possible to carry out the reaction in steel protective equipment. The yield of anhydrous ethylene chlorohydrin reaches 96–97%, instead of 50–60%, but by a known method.
Предмет изобретени Subject invention
Способ получени безводного этиленхлоргидрина путем гидрохлорировани окиси этилена в среде этиленхлоргидрина, отличающийс тем, что,,с целью повышени выхода продукта и снижени коррозии аппаратуры, процесс ведут в присутствии динатрийфосфата.A method of producing anhydrous ethylene chlorohydrin by hydrochlorinating ethylene oxide in an ethylene chlorohydrin medium, characterized in that, in order to increase product yield and reduce equipment corrosion, the process is carried out in the presence of disodium phosphate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU643690A SU130502A1 (en) | 1959-11-11 | 1959-11-11 | The method of obtaining anhydrous ethylene chlorohydrin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU643690A SU130502A1 (en) | 1959-11-11 | 1959-11-11 | The method of obtaining anhydrous ethylene chlorohydrin |
Publications (1)
Publication Number | Publication Date |
---|---|
SU130502A1 true SU130502A1 (en) | 1959-11-30 |
Family
ID=48401620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU643690A SU130502A1 (en) | 1959-11-11 | 1959-11-11 | The method of obtaining anhydrous ethylene chlorohydrin |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU130502A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996030324A1 (en) * | 1995-03-31 | 1996-10-03 | Novácke Chemické Závody A.S. | Method of producing anhydrous ethylene chlorohydrin of high purity |
-
1959
- 1959-11-11 SU SU643690A patent/SU130502A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996030324A1 (en) * | 1995-03-31 | 1996-10-03 | Novácke Chemické Závody A.S. | Method of producing anhydrous ethylene chlorohydrin of high purity |
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