SU199849A1 - METHOD OF OBTAINING A DICIAN - Google Patents

METHOD OF OBTAINING A DICIAN

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Publication number
SU199849A1
SU199849A1 SU1106702A SU1106702A SU199849A1 SU 199849 A1 SU199849 A1 SU 199849A1 SU 1106702 A SU1106702 A SU 1106702A SU 1106702 A SU1106702 A SU 1106702A SU 199849 A1 SU199849 A1 SU 199849A1
Authority
SU
USSR - Soviet Union
Prior art keywords
dician
polar solvent
obtaining
aqueous polar
cyanide
Prior art date
Application number
SU1106702A
Other languages
Russian (ru)
Inventor
С. Зайков А. М. Грибов Л. Л. Данилина С. К. Смирнов
Publication of SU199849A1 publication Critical patent/SU199849A1/en

Links

Description

Известен способ получени  дициана взаимодействием сульфата меди и цианистого натри . Степень чистоты получаемого при этом продукта недостаточна , выход небольшой.A known method for producing cyanogen is the interaction of copper sulfate and sodium cyanide. The degree of purity of the resulting product is insufficient, the output is small.

Предложен способ получени  дициана, по которому цианиды металлов окисл ют безводным куприхлоридом в среде неводного пол рного растворител , например ацетонитрила . По этому способу получают продукт высокой степени чистоты (99,5п/о), выход его до 80% и выше.A method for producing cyanide is proposed, in which metal cyanides are oxidized with anhydrous cupric chloride in a non-aqueous polar solvent, for example acetonitrile. According to this method, a product of high purity (99.5 p / o) is obtained, its yield up to 80% and higher.

Пример. В колбу, снабженную мешалкой , капельной воронкой, обратным холодильником и термометром, загружают смесь 51,8 г (0,39 моль) мелкоизмельченной безводной хлорной меди и 35,0 г (0,39 моль) цианистой закисной меди. Из канельной воронки приливают 50 мл сухого апетонитрила. Дл  более полного протекани  реакции реакционную смесь подогревают при непрерывном перемешивании до температуры, близкой к температуре кипени  растворител . Газы из реакционной колбы проход т через обратный холодильник и три последовательно соединенные с ннм змеевиковые ловушки, охлаждаемые перва  до -10°С, втора  и треть  до -40°С. В первой ловушке конденсируетс  растворитель , во второй и третьей - дициан.Example. A mixture equipped with a stirrer, an addition funnel, a reflux condenser and a thermometer is charged with a mixture of 51.8 g (0.39 mol) of finely ground anhydrous chloric copper and 35.0 g (0.39 mol) of cyanide ferrous copper. 50 ml of dry apetonitrile are poured from the funnel. For a more complete reaction, the reaction mixture is heated with continuous stirring to a temperature close to the boiling point of the solvent. The gases from the reaction flask pass through a reflux condenser and three coil traps connected in series with the nanometer, cooled first to -10 ° C, second and third to -40 ° C. In the first trap the solvent is condensed, in the second and third - dicyan.

Получают 8,26 г (81,5о/о) дициана, содержаш ,его 39,5о/о основного вещества.This gives 8.26 g (81.5 o / o) of cyanogen containing 39.5 o / o of the basic substance.

Предмет изобретени Subject invention

Claims (2)

1.Способ получени  дициана нутем окислени  цианидов металлов соединени ми двухвалентной меди, отличающийс  тем, что, с целью повышени  степени чистоты и выхода продукта, в качестве соединени  двухвалентной меди берут безводный куприхлорид и процесс окислени  осуществл ют в среде неводного пол рного растворител .1. A method for producing cyanide by oxidizing metal cyanides with bivalent copper compounds, characterized in that, in order to increase the purity and yield of the product, anhydrous cuprichloride is taken as the bivalent copper compound and the oxidation process is carried out in a non-aqueous polar solvent. 2.Способ по п. 1, отличающийс  тем, что в качестве неводного пол рного растворител  примен ют ацетонитрил.2. A method according to claim 1, characterized in that acetonitrile is used as the non-aqueous polar solvent.
SU1106702A METHOD OF OBTAINING A DICIAN SU199849A1 (en)

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003983A (en) * 1970-03-17 1977-01-18 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Process of preparing dicyan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003983A (en) * 1970-03-17 1977-01-18 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Process of preparing dicyan

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