Sodium cyanide process

A process for the production of sodium cyanide crystals comprises; (a) contacting impure hydrogen cyanide and sodium hydroxide in a reactor with mixing for a maximum contact time of about 5 seconds; (b) feeding the resulting mixture to a continuous evaporative crystallizer to produce a slurry of sod...

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Main Authors BASHAM BRENT E, ALLISON JAMES DAVID, GRISE STEVEN LAMAR
Format Patent
LanguageChinese
English
Published 02.05.2012
Subjects
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
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Abstract A process for the production of sodium cyanide crystals comprises; (a) contacting impure hydrogen cyanide and sodium hydroxide in a reactor with mixing for a maximum contact time of about 5 seconds; (b) feeding the resulting mixture to a continuous evaporative crystallizer to produce a slurry of sodium cyanide crystals; (c) passing the slurry of sodium cyanide crystals from the crystallizer over a hot surface to precipitate onto the surface and remove sodium carbonate, and passing said slurry back to the crystallizer; and (d) separating the sodium cyanide crystals from the slurry.
AbstractList A process for the production of sodium cyanide crystals comprises; (a) contacting impure hydrogen cyanide and sodium hydroxide in a reactor with mixing for a maximum contact time of about 5 seconds; (b) feeding the resulting mixture to a continuous evaporative crystallizer to produce a slurry of sodium cyanide crystals; (c) passing the slurry of sodium cyanide crystals from the crystallizer over a hot surface to precipitate onto the surface and remove sodium carbonate, and passing said slurry back to the crystallizer; and (d) separating the sodium cyanide crystals from the slurry.
Author ALLISON JAMES DAVID
BASHAM BRENT E
GRISE STEVEN LAMAR
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Snippet A process for the production of sodium cyanide crystals comprises; (a) contacting impure hydrogen cyanide and sodium hydroxide in a reactor with mixing for a...
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SubjectTerms AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
Title Sodium cyanide process
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