SU123153A3 - Method for continuous production of epichlorohydrin - Google Patents
Method for continuous production of epichlorohydrinInfo
- Publication number
- SU123153A3 SU123153A3 SU612008A SU612008A SU123153A3 SU 123153 A3 SU123153 A3 SU 123153A3 SU 612008 A SU612008 A SU 612008A SU 612008 A SU612008 A SU 612008A SU 123153 A3 SU123153 A3 SU 123153A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- epichlorohydrin
- continuous production
- hydrogen chloride
- dichlorohydrin
- mixture
- Prior art date
Links
Landscapes
- Epoxy Compounds (AREA)
Description
Известный способ непрерывного получени эпихлоргндрнна путем пропускани хлористого водорода через глицерпн с последующнм смешением полученного днхлоргндрнна с гпдроокнсыо кальцн сравнительно сложен.The known method for the continuous production of epichlorohydrin by passing hydrogen chloride through glycern, followed by mixing the obtained chloroform with gpdroocxio calcin is relatively complicated.
Предлагаемый способ непрерывного получени эпихлоргидрина отличаетс от известного тем, что гидроокиськальци добавл ют непосредственно в непрерывно отгон юи1уюс азеотропную смесь, содержащую кроме дихлоргидрина воду и избыток хлористого водорода.The proposed method for the continuous production of epichlorohydrin differs from the known method in that the hydroxy acids are added directly to the continuous distillation of the azeotropic mixture containing, in addition to dichlorohydrin, water and an excess of hydrogen chloride.
Предлагаемый способ проще известного, так как представл ет возможность избежать сложную нейтрализацию и дистилл цию под вакуумом сильно корродирующего дихлоргидрина.The proposed method is simpler known, since it is possible to avoid complex neutralization and distillation of highly corrosive dichlorohydrin under vacuum.
Кроме того, вместо чистого хлористого водорода могут быть использованы газовые смеси, содержащие его в количестве 70 80Vo. например отход щие газы процесса сульфохлорировани . содержащие двуокись серы.In addition, instead of pure hydrogen chloride, gas mixtures containing 70–80Vo can be used. e.g. sulfochlorination off-gas. containing sulfur dioxide.
Пример. В реактор, посто нно заполненный до объем- глицерином , под вакуумом 460-500 мм рт. ст. ввод т непрерывно отход щий газ, содержащий 70-80% объем, хлористого водорода.Example. Into the reactor, which is constantly filled to volume with glycerol, under vacuum of 460-500 mm Hg. Art. Continuous off-gas containing 70–80% by volume of hydrogen chloride is introduced.
При поддержании температуры реакции 110-120°. образующийс дихлоргидрин в с реакционной водой и избыточным хлористым водородом при 100° перегон ют в специальный сборник- Получающийс дистилл т состоит в среднем из 50:Vo дихлоргидрина, 35Vo воды и 15% хлористого водорода.While maintaining the reaction temperature 110-120 °. the resulting dichlorohydrin in with the reaction water and excess hydrogen chloride at 100 ° is distilled into a special collection. The resulting distillate consists on average of 50: Vo dichlorohydrin, 35Vo water and 15% hydrogen chloride.
№ 123153-- 2 -No. 123153-- 2 -
По мере того как отгон ют реакционную смесь, в реактор подают свежий глицерин и, таким образом, в реакторе посто нно содерл итс одинаковое количество жидкости. As the reaction mixture is distilled off, fresh glycerin is fed into the reactor and, thus, the same amount of liquid is constantly contained in the reactor.
Дистилл т из сборника непрерывно без нейтрализации и вместе с подаваемым 10-20%-ным известковым молоком ввод т в подогреваемый паром железный трубообразный лел апдий сосуд при 60° и иод вакуумом примерно 100 мм рт. ст.The distillate from the collector is continuously without neutralization and, together with the supplied 10–20% lime milk, is introduced into a steam-heated iron tube-shaped apdium vessel at 60 ° and iodine vacuum of about 100 mm Hg. Art.
Образующийс при омылениц эпихлоргидрнн перегон ют при 50- 60° с водой в виде посто нно кип щей смеси в разделительные приемники; использованное же известковое молоко отвод т в специальный приемник.The epichlorohydrin formed during the omylenis is distilled at 50-60 ° C with water in the form of a constant boiling mixture to separation vessels; the lime milk used is diverted to a special receiver.
Получающийс сравнительно чистый сырой эпихлоргидрин из разделительных приемников на правл ют на очистку дробной перегонкой лод вакуумом 100 мм рт. ст.The resulting relatively pure raw epichlorohydrin from separation vessels is directed to purification by fractional distillation of a vacuum with a vacuum of 100 mm Hg. Art.
Пред м е т и з о б р е т е н и Prevention and Consideration
1. Способ непрерывного получени эпихлоргидрина путем пропускани хлористого водорода через глицерин с последующим смешением полученного дихлоргидрина с гидроокисью кальци , отличающийс тем, что, с целыо упрощени процесса, гидроокись кальци добавл ют непосредственно в непрерывно отгон ющуюс азеотропную смесь, содержащую кроме дихлоргидрина воду и избыток хлористого водорода.1. A method of continuously preparing epichlorohydrin by passing hydrogen chloride through glycerin, followed by mixing the obtained dichlorohydrin with calcium hydroxide, characterized in that, in order to simplify the process, calcium hydroxide is added directly to a continuous azeotropic mixture containing, in addition to dichlorohydrin, chlorine and a mixture of hydrochloride, and a mixture of hydrochloride, and a mixture of dichlorohydrin and calcium hydroxide. hydrogen.
2- Способ ПО п. 1, отличающийс тем, что, через глицерин пропускают газовую смесь, содержащую хлористый водород в количестве 70-80% объем., например, отход щие газы .процесса сульфохлорировани .2- A method according to claim 1, characterized in that a gas mixture containing hydrogen chloride in an amount of 70-80% by volume, for example, waste gases of a sulfochlorination process, is passed through glycerin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU612008A SU123153A3 (en) | 1958-11-18 | 1958-11-18 | Method for continuous production of epichlorohydrin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU612008A SU123153A3 (en) | 1958-11-18 | 1958-11-18 | Method for continuous production of epichlorohydrin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU123153A3 true SU123153A3 (en) | 1958-11-30 |
Family
ID=48407115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU612008A SU123153A3 (en) | 1958-11-18 | 1958-11-18 | Method for continuous production of epichlorohydrin |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU123153A3 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7893193B2 (en) | 2005-05-20 | 2011-02-22 | Solvay (Société Anonyme) | Method for making a chlorohydrin |
| US7939696B2 (en) | 2005-11-08 | 2011-05-10 | Solvay Societe Anonyme | Process for the manufacture of dichloropropanol by chlorination of glycerol |
| US8067645B2 (en) | 2005-05-20 | 2011-11-29 | Solvay (Societe Anonyme) | Process for producing a chlorhydrin from a multihydroxylated aliphatic hydrocarbon and/or ester thereof in the presence of metal salts |
| US8124814B2 (en) | 2006-06-14 | 2012-02-28 | Solvay (Societe Anonyme) | Crude glycerol-based product, process for its purification and its use in the manufacture of dichloropropanol |
| US8197665B2 (en) | 2007-06-12 | 2012-06-12 | Solvay (Societe Anonyme) | Aqueous composition containing a salt, manufacturing process and use |
| US8258350B2 (en) | 2007-03-07 | 2012-09-04 | Solvay (Societe Anonyme) | Process for the manufacture of dichloropropanol |
| US8273923B2 (en) | 2007-06-01 | 2012-09-25 | Solvay (Societe Anonyme) | Process for manufacturing a chlorohydrin |
| US8314205B2 (en) | 2007-12-17 | 2012-11-20 | Solvay (Societe Anonyme) | Glycerol-based product, process for obtaining same and use thereof in the manufacturing of dichloropropanol |
| US8378130B2 (en) | 2007-06-12 | 2013-02-19 | Solvay (Societe Anonyme) | Product containing epichlorohydrin, its preparation and its use in various applications |
| US8415509B2 (en) | 2003-11-20 | 2013-04-09 | Solvay (Societe Anonyme) | Process for producing dichloropropanol from glycerol, the glycerol coming eventually from the conversion of animal fats in the manufacture of biodiesel |
| US8471074B2 (en) | 2007-03-14 | 2013-06-25 | Solvay (Societe Anonyme) | Process for the manufacture of dichloropropanol |
| US8507643B2 (en) | 2008-04-03 | 2013-08-13 | Solvay S.A. | Composition comprising glycerol, process for obtaining same and use thereof in the manufacture of dichloropropanol |
| US8536381B2 (en) | 2008-09-12 | 2013-09-17 | Solvay Sa | Process for purifying hydrogen chloride |
| US8715568B2 (en) | 2007-10-02 | 2014-05-06 | Solvay Sa | Use of compositions containing silicon for improving the corrosion resistance of vessels |
| US8795536B2 (en) | 2008-01-31 | 2014-08-05 | Solvay (Societe Anonyme) | Process for degrading organic substances in an aqueous composition |
| US9309209B2 (en) | 2010-09-30 | 2016-04-12 | Solvay Sa | Derivative of epichlorohydrin of natural origin |
-
1958
- 1958-11-18 SU SU612008A patent/SU123153A3/en active
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9663427B2 (en) | 2003-11-20 | 2017-05-30 | Solvay (Société Anonyme) | Process for producing epichlorohydrin |
| US8415509B2 (en) | 2003-11-20 | 2013-04-09 | Solvay (Societe Anonyme) | Process for producing dichloropropanol from glycerol, the glycerol coming eventually from the conversion of animal fats in the manufacture of biodiesel |
| US7893193B2 (en) | 2005-05-20 | 2011-02-22 | Solvay (Société Anonyme) | Method for making a chlorohydrin |
| US7906691B2 (en) | 2005-05-20 | 2011-03-15 | Solvay (Societe Anonyme) | Method for making chlorohydrin in corrosion-resistant equipment |
| US8067645B2 (en) | 2005-05-20 | 2011-11-29 | Solvay (Societe Anonyme) | Process for producing a chlorhydrin from a multihydroxylated aliphatic hydrocarbon and/or ester thereof in the presence of metal salts |
| US8106245B2 (en) | 2005-05-20 | 2012-01-31 | Solvay (Société Anonyme) | Method for preparing chlorohydrin by converting polyhydroxylated aliphatic hydrocarbons |
| US7906692B2 (en) | 2005-05-20 | 2011-03-15 | Solvay (Societe Anonyme) | Method for making a chlorohydrin by chlorinating a polyhydroxylated aliphatic hydrocarbon |
| US8420871B2 (en) | 2005-05-20 | 2013-04-16 | Solvay (Societe Anonyme) | Process for producing an organic compound |
| US8591766B2 (en) | 2005-05-20 | 2013-11-26 | Solvay (Societe Anonyme) | Continuous process for preparing chlorohydrins |
| US8344185B2 (en) | 2005-05-20 | 2013-01-01 | SOLVAY (Société Anonyme | Method for making a chlorhydrine by reaction between a polyhydroxylated aliphatic hydrocarbon and a chlorinating agent |
| US8389777B2 (en) | 2005-05-20 | 2013-03-05 | Solvay (Société Anonyme) | Continuous method for making chlorhydrines |
| US8519198B2 (en) | 2005-05-20 | 2013-08-27 | Solvay (Societe Anonyme) | Method for making an epoxide |
| US7939696B2 (en) | 2005-11-08 | 2011-05-10 | Solvay Societe Anonyme | Process for the manufacture of dichloropropanol by chlorination of glycerol |
| US8124814B2 (en) | 2006-06-14 | 2012-02-28 | Solvay (Societe Anonyme) | Crude glycerol-based product, process for its purification and its use in the manufacture of dichloropropanol |
| US8258350B2 (en) | 2007-03-07 | 2012-09-04 | Solvay (Societe Anonyme) | Process for the manufacture of dichloropropanol |
| US8471074B2 (en) | 2007-03-14 | 2013-06-25 | Solvay (Societe Anonyme) | Process for the manufacture of dichloropropanol |
| US8273923B2 (en) | 2007-06-01 | 2012-09-25 | Solvay (Societe Anonyme) | Process for manufacturing a chlorohydrin |
| US8378130B2 (en) | 2007-06-12 | 2013-02-19 | Solvay (Societe Anonyme) | Product containing epichlorohydrin, its preparation and its use in various applications |
| US8399692B2 (en) | 2007-06-12 | 2013-03-19 | Solvay (Societe Anonyme) | Epichlorohydrin, manufacturing process and use |
| US8197665B2 (en) | 2007-06-12 | 2012-06-12 | Solvay (Societe Anonyme) | Aqueous composition containing a salt, manufacturing process and use |
| US8715568B2 (en) | 2007-10-02 | 2014-05-06 | Solvay Sa | Use of compositions containing silicon for improving the corrosion resistance of vessels |
| US8314205B2 (en) | 2007-12-17 | 2012-11-20 | Solvay (Societe Anonyme) | Glycerol-based product, process for obtaining same and use thereof in the manufacturing of dichloropropanol |
| US8795536B2 (en) | 2008-01-31 | 2014-08-05 | Solvay (Societe Anonyme) | Process for degrading organic substances in an aqueous composition |
| US8507643B2 (en) | 2008-04-03 | 2013-08-13 | Solvay S.A. | Composition comprising glycerol, process for obtaining same and use thereof in the manufacture of dichloropropanol |
| US8536381B2 (en) | 2008-09-12 | 2013-09-17 | Solvay Sa | Process for purifying hydrogen chloride |
| US9309209B2 (en) | 2010-09-30 | 2016-04-12 | Solvay Sa | Derivative of epichlorohydrin of natural origin |
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