SU138232A1 - Method for the preparation of methyl salts - Google Patents

Method for the preparation of methyl salts

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Publication number
SU138232A1
SU138232A1 SU676828A SU676828A SU138232A1 SU 138232 A1 SU138232 A1 SU 138232A1 SU 676828 A SU676828 A SU 676828A SU 676828 A SU676828 A SU 676828A SU 138232 A1 SU138232 A1 SU 138232A1
Authority
SU
USSR - Soviet Union
Prior art keywords
bromine
preparation
salts
amount
methyl salts
Prior art date
Application number
SU676828A
Other languages
Russian (ru)
Inventor
В.И. Ксендзенко
Е.А. Дианов
Original Assignee
В.И. Ксендзенко
Е.А. Дианов
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.И. Ксендзенко, Е.А. Дианов filed Critical В.И. Ксендзенко
Priority to SU676828A priority Critical patent/SU138232A1/en
Application granted granted Critical
Publication of SU138232A1 publication Critical patent/SU138232A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Известен способ получени  бромистых солей путем взаимодействи  брома с растворами щелочей в присутствии мочевины, как восстановител , не дающего побочных реакций с элементарным бромом.A known method for producing bromine salts by reacting bromine with alkali solutions in the presence of urea as a reducing agent that does not produce side reactions with elemental bromine.

Предложен способ получени  бромистых солей, например бромистого натри , бромистого кали  или бромистого кальци , путем поглощени  брома из бромовоздущной смеси раствором едкого натри  или едкого кали , или известковым молоком соответственно в присутствии нелетучего восстановител  мочевины, вз той в избытке на 1 -1,5% по сравнению с теоретическим количеством на эквивалент брома. В этих услови х получающиес  растворы практически свободны от кислородных соединений брома. Удаление небольщого количества избытка мочевины осуществл етс  нагреванием растворов до 60-65° или введением отмеренного количества бромной воды. Переработка растворов в дальнейщем проводитс  общеизвестными методами.A method for producing bromide salts, such as sodium bromide, potassium bromide or calcium bromide, is proposed by absorbing bromine from the bromine-air mixture with a solution of sodium hydroxide or potassium hydroxide, or lime milk, respectively, in the presence of a non-volatile urea reducing agent taken in excess of 1-1.5% compared to the theoretical amount per bromine equivalent. Under these conditions, the resulting solutions are practically free of oxygen compounds of bromine. Removal of a small amount of excess urea is carried out by heating the solutions to 60-65 ° or by introducing a measured amount of bromine water. The processing of the solutions is subsequently carried out by well-known methods.

Отличием предложенного способа от известного  вл етс  то, что в данном случае известна  реакци  щелочных растворов с бромом используетс  дл  получени  бромистых солей из бромовоздущной смеси, получаемой в процессе извлечени  брома из рассолов по воздущному способу , т. е. в услови х значительного разбавлени  паров брома воздухом с концентрацией несколько грамм на кубический метр. При этом поглощение брома ведут с избыточным количеством мочевины в щелочном растворе в количестве 101 -101,5% от теоретического с последующим нагреванием раствора до 60-65° с рассчитанным количеством бромной воды. Применением предложенного способа достигаетс  устранение потерь восстановител  с отработанным воздухом, так как восстановитель нелетучий, а также повыщение качества .продукта за счет снижени  количества кислородных соединений брома в полученном продукте.The difference between the proposed method and the known method is that in this case, the known reaction of alkaline solutions with bromine is used to obtain bromine salts from the bromine-air mixture obtained in the process of extracting bromine from brines by the air method, i.e. under conditions of significant dilution of bromine vapor air with a concentration of several grams per cubic meter. In this case, the absorption of bromine is carried out with an excess amount of urea in an alkaline solution in the amount of 101-101.5% of the theoretical, followed by heating the solution to 60-65 ° with the calculated amount of bromine water. By using the proposed method, loss of the reducing agent with exhaust air is achieved, since the reducing agent is nonvolatile, as well as the product quality is improved by reducing the amount of oxygen compounds of bromine in the resulting product.

Перечисленные преимущества указывают на полезность предложенного способа получени  бромных солей. Предложенный способ исследоThese advantages indicate the usefulness of the proposed method for the preparation of bromine salts. The proposed method of research

SU676828A 1960-07-08 1960-07-08 Method for the preparation of methyl salts SU138232A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU676828A SU138232A1 (en) 1960-07-08 1960-07-08 Method for the preparation of methyl salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU676828A SU138232A1 (en) 1960-07-08 1960-07-08 Method for the preparation of methyl salts

Related Child Applications (1)

Application Number Title Priority Date Filing Date
SU813276863A Addition SU966448A2 (en) 1981-04-09 1981-04-09 Opened cooling device

Publications (1)

Publication Number Publication Date
SU138232A1 true SU138232A1 (en) 1960-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU676828A SU138232A1 (en) 1960-07-08 1960-07-08 Method for the preparation of methyl salts

Country Status (1)

Country Link
SU (1) SU138232A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083942A (en) * 1977-03-03 1978-04-11 Great Lakes Chemical Corporation Process for producing metal bromides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083942A (en) * 1977-03-03 1978-04-11 Great Lakes Chemical Corporation Process for producing metal bromides

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