SU123153A3 - Method for continuous production of epichlorohydrin - Google Patents

Method for continuous production of epichlorohydrin

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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
Application number
SU612008A
Other languages
Russian (ru)
Inventor
Словак Гельмут
Бертхольд Горст
Андреас Фридрих
Original Assignee
Словак Гельмут
Бертхольд Горст
Андреас Фридрих
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Словак Гельмут, Бертхольд Горст, Андреас Фридрих filed Critical Словак Гельмут
Priority to SU612008A priority Critical patent/SU123153A3/en
Application granted granted Critical
Publication of SU123153A3 publication Critical patent/SU123153A3/en

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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.

SU612008A 1958-11-18 1958-11-18 Method for continuous production of epichlorohydrin SU123153A3 (en)

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

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SU (1) SU123153A3 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
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

Cited By (26)

* Cited by examiner, † Cited by third party
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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