КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «AMMONIUM CARBAMATE»
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Hazardous Materials: Emergency Action Data
A physician should be contacted if anyone develops any sign or symptoms and
suspects that they are caused by exposure to ammonium carbamate. FIRST AID
Eye Exposure If ammonium carbamate gets into the eyes, flush with water lifting ...
Charles R. Foden, Jack L. Weddell, 1991
2
Industrial Inorganic Chemistry
AH = —117 kJ/mol At high pressures this reaction is quantitative. Ammonium
carbamate is in equilibrium with urea and water: NH2COONH4 liq. : NH2CONH2
lig. + HZOIiq. AH = 15.5 kJ/mol Ca. 70% of the carbon dioxide is converted into
urea ...
Karl Heinz Büchel, Hans-Heinrich Moretto, Dietmar Werner, 2008
MANUFACTURE Urea can be manufactured by passing liquid C02 and liquid
NH3 in a silver lined special autoclave when ammonium carbamate is formed.
The latter is heated at 130-135° under about 35 atmospheric pressure to get urea
.
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Petrochemical Processes....
1.6.1 Process characteristics 1.6.1.1 Reactions Urea is manufactured from
ammonium carbamate by dehydration according to the following main reactions :
2NH3(gi + CO2(gt ?± NH2-COONH4()) AH°29s = -151 kJ/mol NH2-COONH4(t) «
=s ...
Alain Chauvel, Gilles Lefebvre
It is transformed, through loss of excess ammonia and dissociation of some
ammonium carbamate, into a powdery product. When the quantities of ammonia
specified above are used, 200 to 300 g. of ammonium carbamate can be
prepared.
Inorganic Syntheses, Inc., 2009
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Carbonates—Advances in Research and Application: 2013 Edition
The salt species formed include ammonium bicarbonate, ammonium carbonate,
and ammonium carbamate. Of these, ammonium carbamate is by far the most
soluble. Other draw solutions may utilize ethanol and other thermally removable
...
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Selected Formulary Book on Petroleum, Lubricants, Fats, ...
... or granular type of fertilizer products. The aqueous urea-ammonia solutions
are prepared by the appropriate adjustmentof the composition of the urea
synthesis stream. Such solutions contain a certain quantity of ammonium
carbamate, ...
NPCS Board of Consultants & Engineers, 2008
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Szycher's Handbook of Polyurethanes, Second Edition
... tion.of.amines.with.carbon.dioxide.in.the.presence.of.an.aprotic.organic.solvent
.and.a. nitrogenous.base..The.corresponding.ammonium.carbamate.is.treated.
with.a.dehydrating. agent.
Michael Szycher, Ph.D, 2012
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Industrial High Pressure Applications: Processes, Equipment, ...
Compared to the recycling of gas streams with compressors, the liquid
ammonium carbamate solution can be pressurized more easily by using less
expensive pumps. However, the handling of the very corrosive ammonium
carbamate ...
10
Introduction to Chemical Engineering
In the first step, ammonium carbamate is formed in an exothermic reaction. 2NH3
(g) + CO2(g) =?i NH4COONH2(s), AH = - 157.6 MJ/kmol (10.81) In the second
step, ammonium carbamate is decomposed to produce urea in an endothermic ...
Salil K. Ghosal, Siddhartha Datta, 2011
НОВОСТИ, В КОТОРЫХ ВСТРЕЧАЕТСЯ ТЕРМИН «AMMONIUM CARBAMATE»
Здесь показано, как национальная и международная пресса использует термин
ammonium carbamate в контексте приведенных ниже новостных статей.
Materials science: The hole story
... to the solvents already used for carbon capture, and react with CO2 to produce chains of tightly packed ammonium carbamate molecules. «Nature.com, Апр 15»
A better way to scrub CO2
... CO2 molecules insert into metal-amine bonds, inducing a reorganization of the amines into well-ordered chains of ammonium carbamate.". «Science Codex, Мар 15»
Carbon capture by new compound cuts energy cost by half
The diamines bind to the metal atoms of the MOF and then react with CO2 to form metal-bound ammonium carbamate which lines the interior of ... «International Business Times UK, Мар 15»
The rarely understood ammonium carbonate monohydrate
A sample from one supplier tested by the researchers proved to be something entirely different - ammonium carbamate. However, Fortes and ... «Phys.Org, Фев 15»
