SU107275A1 - The method of separation of mixtures of hydrocarbons and monohydric alcohols - Google Patents

The method of separation of mixtures of hydrocarbons and monohydric alcohols

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Publication number
SU107275A1
SU107275A1 SU559006A SU559006A SU107275A1 SU 107275 A1 SU107275 A1 SU 107275A1 SU 559006 A SU559006 A SU 559006A SU 559006 A SU559006 A SU 559006A SU 107275 A1 SU107275 A1 SU 107275A1
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SU
USSR - Soviet Union
Prior art keywords
hydrocarbons
mixtures
monohydric alcohols
separation
alcohols
Prior art date
Application number
SU559006A
Other languages
Russian (ru)
Inventor
В.Б. Коган
В.М. Фридман
Original Assignee
В.Б. Коган
В.М. Фридман
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 В.Б. Коган, В.М. Фридман filed Critical В.Б. Коган
Priority to SU559006A priority Critical patent/SU107275A1/en
Application granted granted Critical
Publication of SU107275A1 publication Critical patent/SU107275A1/en

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Description

В процессе синтеза жирных спиртов разными методами в качестве побочных продуктов получаютс  углеводороды, которые должны быть отделены.In the process of synthesis of fatty alcohols by various methods, hydrocarbons are produced as by-products, which must be separated.

Известен способ выделени  высших спиртов с числом углеродных атомов больше трех из смесей с углеводородами путем экстракции водными растворами низших спиртов, содержащих в молекуле меньше трех углеродных атомов.There is a method of separating higher alcohols with more than three carbon atoms from mixtures with hydrocarbons by extraction with aqueous solutions of lower alcohols containing less than three carbon atoms in the molecule.

Известен и примен етс  в промышленном масштабе способ выделени  углеводородов из смеси со спиртами путем азеотропной ректификации с применением в качестве раздел юш.его агента метилового спирта (углеводороды отгон ют в виде азеотропной смеси с метиловым спиртом , который потом отмывают водой).A method of separating hydrocarbons from a mixture with alcohols by azeotropic distillation is known and used on an industrial scale, using methyl alcohol as its partition agent (hydrocarbons are distilled off as azeotropic mixture with methyl alcohol, which is then washed with water).

В предлагаемом способе разделени  смесей углеводородов и одноатомных спиртов методом экстракции в качестве экстрагирующего вещества примен ют этиленгликоль. Эффективное разделение при использовании этиленгликол  обеспечиваетс  благодар  тому, что этиленгликоль обладает полной взаимной растворимостью с одноатомными спиртами и очень малой взаимной растворимостью с углеводородами. Например , авторами было определено, что при 20° взаимна  растворимость этиленгликол  в н-гептане ничтожно мала, составл ет менее 0,1%.In the proposed method for separating mixtures of hydrocarbons and monohydric alcohols by the extraction method, ethylene glycol is used as an extracting agent. Effective separation using ethylene glycol is ensured by the fact that ethylene glycol has complete mutual solubility with monohydric alcohols and very little mutual solubility with hydrocarbons. For example, the authors determined that at 20 ° the mutual solubility of ethylene glycol in n-heptane is negligible, less than 0.1%.

При экстракции по предлагаемому способу спиртов из их смесей с углеводородами последние представл ют легкую фазу, а этиленгликоль с экстрагированными одноатомными спиртами т желую фазу. Одноатомные спирты отдел ютс  от этиленгликол  путем ректификации или экстракции водой.In the extraction according to the proposed method, the alcohols from their mixtures with hydrocarbons, the latter are the light phase, and the ethylene glycol with the extracted monohydric alcohols is the heavy phase. The monohydric alcohols are separated from ethylene glycol by rectification or extraction with water.

Предлагаемый способ разделени  одноатомных спиртов от углеводородов представл ет практический интерес. Расходные коэффициенты по этиленгликолю значительно меньше, чем по метиловому спирту, примен емому в производстве жирных спиртов в качестве раздел ющего агента в процессе азеотропной ректификации.The proposed method for separating monohydric alcohols from hydrocarbons is of practical interest. The consumption coefficients for ethylene glycol are significantly less than for methyl alcohol used in the production of fatty alcohols as a separating agent in the azeotropic distillation process.

№ 107275- 2 -No. 107275-2 -

Применение предложенного способа позвол ет работу предпри тий с точки зрени  противопожарных и санитарных условий, так как исключаетс  применение огнеопасного и  довитого метилового спирта.The application of the proposed method allows the operation of the enterprises from the point of view of fire-fighting and sanitary conditions, since the use of flammable and poisonous methyl alcohol is excluded.

Пример. К 1 м смеси, получающейс  при производстве жирных спиртов и содержащей около 65% парафиновых углеводородов СеНм-С9Н20, 34% бутилового спирта и около 1% воды, добавл етс  2- 3 м этиленгликол . После перемещивани  и отстаивани  отдел етс  верхний слой, содержащий менее 1% бутанола. Из нижнего сло , содержащего около 0,5% углеводородов и 8-11% (весовых) бутанола, последний выдел етс  путем ректификации.Example. 2 to 3 m of ethylene glycol is added to 1 m of the mixture resulting from the production of fatty alcohols and containing about 65% paraffin hydrocarbons CeHm-C9H20, 34% butyl alcohol and about 1% water. After moving and settling, the top layer containing less than 1% butanol is separated. From the bottom layer, containing about 0.5% hydrocarbons and 8-11% (by weight) butanol, the latter is separated by distillation.

Предмет изобретени Subject invention

Способ разделени  смесей углеводородов и одноатомных спиртов методом экстракции, отличающийс  тем, что, с целью улучщени  условий труда, в качестве экстрагирующего спирты вещества примен ют этиленгликоль.A method of separating mixtures of hydrocarbons and monohydric alcohols by an extraction method, characterized in that, in order to improve working conditions, ethylene glycol is used as an alcohol-extracting substance.

SU559006A 1956-09-02 1956-09-02 The method of separation of mixtures of hydrocarbons and monohydric alcohols SU107275A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU559006A SU107275A1 (en) 1956-09-02 1956-09-02 The method of separation of mixtures of hydrocarbons and monohydric alcohols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU559006A SU107275A1 (en) 1956-09-02 1956-09-02 The method of separation of mixtures of hydrocarbons and monohydric alcohols

Publications (1)

Publication Number Publication Date
SU107275A1 true SU107275A1 (en) 1956-11-30

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Country Link
SU (1) SU107275A1 (en)

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