Removal of basic nitrogen compounds from organic streams

Details Removal of basic nitrogen compounds from organic streams Removal of basic nitrogen compounds from organic streams

1980-12-19

1982-06-01

Doll, John

Mineral oils: processes and products

Refining

Nitrogen contaminant removal

208293, C10G 2110

Patent

active

043326757

ABSTRACT:
Basic nitrogen compounds are removed from organic streams which are substantially free of water by contacting the stream with gaseous sulfur dioxide thereby precipitating a complex containing the basic nitrogen compounds and sulfur dioxide, and thereafter separating the precipitating complex from the contacted stream. The basic nitrogen compounds and the sulfur dioxide can then be regenerated from the complex.

REFERENCES:
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patent: 2079782 (1937-05-01), Wells
patent: 2410042 (1946-10-01), Bond
patent: 2754248 (1956-07-01), Wetzel
Voroshzov et al., "Ber. (Abstract)," 63B, pp. 2354-2362 (1930).
DeCarli, "Gass. Chim. Ital. (Abstract)," 57, pp. 347-355 (1927).
Zhurin et al., "Zh. Obshch. Khim. (Abstract)," 33(10), pp. 3360-3364 (1963).
Sharada et al., "Current Sci., India (Abstract)," 29, pp. 130-131 (1960).
Hata et al., "Nature (Abstract)," 203 (4952), pp. 1378-1379 (1964).

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