The Vespiary

The Hive => Chemistry Discourse => Topic started by: PolytheneSam on December 07, 2001, 02:12:00 AM

Title: LiBr Russian patent abstract
Post by: PolytheneSam on December 07, 2001, 02:12:00 AM
Can someone translate this?

(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000245138-file_6ya2.jpg)
http://www.geocities.com/dritte123/PSPF.html
Title: Re: LiBr Russian patent abstract
Post by: dovlatov on December 07, 2001, 05:07:00 AM
(references)
Y.I. Matyushenko, V.A. Morozova & S.M. Tulskii
1. A METHOD FOR PRODUCING LITHIUM BROMIDE, beginning by refining a lithium carbonate suspension with an aqueous bromide in the presence of an inorganic reagent, the subsequent separation of mixture from sediment, it's evaporation and crystallization from the product, differentiated so, that, the cost of the process  is deliberately lowered by enhancing yields and conserving the basic qualitative product.  As an inorganic reagent ammoniated water is used.
2. Re: Method no. 1, it is significant that ammoniated water is used at a concentration of 25-30%
3. Re: Method no. 1, it is significant that the refinement with aqueous bromide is initiated at a rate of 60-90 liters/hour maintaining lithium carbonate ratio in the reactive mass at 60-90 grams/liter.  After that a rate of 30-50 liters/hour in the presence of said lithium carbonate.

..apologies to more technically literate Russian bees...
dovlatov.
Title: Re: LiBr Russian patent abstract
Post by: Bwiti on December 07, 2001, 05:29:00 AM
Damn, I didn't know that producing lithium bromide would be that much of a pain in the ass. Boiling it with benzoic acid produces HBr, so it's worth it! 8)
  Split a piece of wood and I am there. Lift a stone and you will find me.
Title: Re: LiBr Russian patent abstract
Post by: uemura on December 07, 2001, 12:27:00 PM
Bwiti,

Damn, I didn't know that producing lithium bromide would be that much of a pain in the ass


You could simple try this one:
Li2CO3 + 2HBr -> 2 LiBr + H2O + CO2
evap water until cristalls appear, suction filter, dry in evac desic, put in thightly sealed bottle because it's a bit hygroscopic.

Carpe Diem
Title: Re: LiBr Russian patent abstract
Post by: Bwiti on December 07, 2001, 04:20:00 PM
"it's a bit hygroscopic."

  If I can keep methylamine hydrochloride dry, then lithium bromide won't be a problem.
  Hmmmm, how much does benzoic acid cost these days? 10oz for like $12? Pet ether's cheap..Fuck making bromosafrole with DMSO; Smells like human waste and rotten milk. Peace!
8)
  Split a piece of wood and I am there. Lift a stone and you will find me.