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    • 10. 发明授权
    • Process for producing hydrocyanic acid
    • 制备氢氰酸的方法
    • US08574530B2
    • 2013-11-05
    • US12865873
    • 2009-03-20
    • Enzo FormentinCatherine Schafer
    • Enzo FormentinCatherine Schafer
    • C01C3/0245
    • C01C3/0212C01C3/0229C07C253/10C07C319/20C07C323/58C07C255/04
    • The present invention relates to an improved process for producing hydrocyanic acid by reaction of ammonia with methane in which a small amount of at least one sulphur-containing compound corresponding to the general formula R S (S)x—R′ is added, in which R and R′, which are identical or different, represent a linear or branched alkyl or alkenyl radical containing from 1 to 5 carbon atoms, and x is a number ranging from 1 to 5, to the reactive gas mixture before it passes over the catalyst. The process according to the invention makes it possible to obtain improved yields of HCN. Another subject of the invention relates to the use of the resulting product for producing methionine, acetone cyanohydrin, adiponitrile or sodium cyanide.
    • 本发明涉及通过氨与甲烷反应制备氢氰酸的改进方法,其中加入少量至少一种对应于通式RS(S)xR'的含硫化合物,其中R和R '相同或不同,表示在其通过催化剂之前,含有1至5个碳原子的直链或支链烷基或烯基,并且x为1至5的数。 根据本发明的方法使得可以获得提高的HCN产率。 本发明的另一主题涉及所得产物用于生产甲硫氨酸,丙酮氰醇,己二腈或氰化钠的用途。