Arts and Mental Hygiene

Barr, John H.

doi:10.1080/00119253.1947.10742664

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“…Primary amines of the saturated higher members axe used as hard rubber mold releaseagents, and dodecylamine is used in reclaimingboth natural and synthetic rubber, The amines and their salts are effective flotation agents for 33 90 3 3.5 38 115 11 14 41 173 49 33 226 12 23 40 157 27 53 33 269 23 28 39 179 25 29 43 198 67 Gel 360 Gel concentrating lower grades of phosphate rock (35), and effective collectors for mica, feldspar, and silica. Amines are the basis for formulations used in protecting hygroscopic materials against atmosphericmoisture.…”

Section: Primary Aminesmentioning

confidence: 99%

Nitrogen derivatives (Amides, diamides, nitriles, primary amines and oxides)

Reck

1979

J Americ Oil Chem Soc

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Without a doubt the nitrogen derivatives are the most broadly diversified family of fatty acid derivatives. Today they account collectively for perhaps 400 million pounds of products per year in the USA alone. Although fatty amides may be produced by a large number of synthetic routes, industrially only two are of any commercial importance. Diamides are the difunctional analogs of simple amides, and a typical one that is in medium scale production volume is ethylene bis(stearamide). Industrially, the production of fatty nitriles in the fatty acid derivative industry is exclusively by ammonolysis of fatty acids at temperatures somewhat above those required to produce amides, or roughly, 300–320 C. Both vapor phase catalytic and liquid phase ammonolysis processes may be employed. Nitriles have limited uses as such, but find their utility as fatty derivative intermediates only. The primary amines, RNH2, are produced industrially by the catalytic hydrogenation of nitriles. The general conditions for the conversion of nitriles to primary amines with a minimum content of secondary or tertiary amines is with nickel catalyst using an excess of ammonia at relatively low temperatures (130–140 C). Amine oxides are derived from tertiary amines by a controlled reaction with hydrogen peroxide. In addition to tertiary amines, the monoalkyl diethoxylated amines can be considered as in the same class. These are made by the addition of ethylene oxide to primary amine. Two moles of ethylene oxide can be added without catalyst. Additional ethoxylation does require a basic catalyst. These amines, besides having end uses of their own, can be converted to amine oxides or can be converted to ethoxylated quaternary ammonium salts.

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Section: Primary Aminesmentioning

confidence: 99%

Nitrogen derivatives (Amides, diamides, nitriles, primary amines and oxides)

Reck

1979

J Americ Oil Chem Soc

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Arts and Mental Hygiene

Cited by 1 publication

References 0 publications

Nitrogen derivatives (Amides, diamides, nitriles, primary amines and oxides)

Nitrogen derivatives (Amides, diamides, nitriles, primary amines and oxides)

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