Sodium cyanide process

Details Sodium cyanide process Sodium cyanide process

2005-05-24

2005-05-24

Langel, Wayne A. (Department: 1754)

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

Reexamination Certificate

active

06896863

ABSTRACT:
A process that can be used to produce NaCN is provided. The process comprises contacting hydrogen cyanide with sodium hydroxide solution to produce a NaCN solution and crystallizing the NaCN solution wherein the process is carried out in the presence of an acid or a metal salt of the acid in which the acid has a pKa≦4.4. The NaCN crystals can be separated from the slurry and dried.

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