hyperlab.info Forum
 Здравствуйте, Гость ( Вход | Регистрация )
 

Правила | Активные темы | Поиск | Участники | Календарь

  ОтветитьНовая темаНовый опрос
peroxides
« Предыдущая тема | Следующая тема » Слежение за этой темой | Подписка на этот форум
Neo Retro

Старый Юный Химик

Aug 20 2006, 23:44

Peroxides in some solvents, how to test for them and remove them.

http://www.chemistry.ohio-state.edu/ehs/peroxide.htm

Patent US2254404 Distillation of ethers containing peroxides
high boiling hydrocarbon oil as stabilizer

Patent US2790813 Safe recovery of tetrahydrofuran vapors

Patent US3003002 Purification of ether
anion exchange resin, KI test for peroxides

Patent US2552670
reduction of peroxides in cyclic ketones
col. 1 lines 42+
In accordance with the present invention, the peroxides are removed from the oxidation effluent by treatment with an aqueous solution of a reducing agent, such as a ferrous salt, a stannous salt, a chromous salt, a sulfite, or a bisulfite, that reduces peroxides.

Patent US2563598
removal of peroxides and similar unstable oxy-compounds from mixtures of hydrocarbons and oxygenated organic compounds

Patent US3420906 REMOVAL OF PEROXIDES FROM A CYCLOHEXENE STREAM
silica gel

Patent US2526499 Refining heavy oils
Col. 2 lines 13+
It has now been discovered that peroxides can be substantially completely removed from higher boiling fractions of petroleum by contacting them with a bleaching earth such as Attapulgus clay, Floridin, fuller's earth, Olmstead clay, etc., at temperatures between 60' and 120' F., preferably between 70 and 90 F.

Patent US2058250 Treatment and packaging of ether



приват · e-mail цитировать
Neo Retro

Старый Юный Химик

Aug 20 2006, 23:48

Also see this about 2-butanol.
http://www.jce.divched.org/cgi-bin/JCE/jce...=144889&isize=M

приват · e-mail цитировать
1 ответов с Aug 20 2006, 23:44 Слежение за этой темой | Подписка на этот форум


<< Назад в Russian Hyperlab
ОтветитьНовая темаНовый опрос

Поиск в этой теме: