Compositions: coating or plastic – Coating or plastic compositions – Corrosion inhibiting coating composition
Patent
1981-01-19
1982-10-19
Schain, Howard E.
Compositions: coating or plastic
Coating or plastic compositions
Corrosion inhibiting coating composition
106 1431, 106 1433, 252309, 252389R, 252390, 252391, 252392, 252394, 252395, 252396, C04B 900, C04B 902, C04B 904, C23F 1100
Patent
active
043548725
ABSTRACT:
A highly stable metal oxide oil slurry useful in reducing slag, facilitating removal of deposits from boiler tubes, and reducing corrosion on the heating surfaces of boilers has been developed. Such a slurry consists essentially of about 50% by weight magnesium oxide or the entity of magnesium oxide and alumina oxide, together with an oil-soluble emulsifier such as alkanolamide and preferably ethanolamide, or an alkanol with a carbon chain greater than a C.sub.3 alcohol, an oil-soluble dispersant such as a C.sub.12 -C.sub.22 entity selected from an unsaturated or saturated fatty acid; e.g., oleic acid. Also, as a constituent is an anionic surfactant such as magnesium lauryl sulfate in an oil base such as No. 2 fuel oil. The alkanolamide is fashioned from heating alkanolamines and fatty acids either in a 1:1 ratio or 2:1 ratio. The reactant amino alcohol is in the range C.sub.10 -C.sub.24. The alcohol itself is greater than C.sub.3 and up to C.sub.16, with a preferred range C.sub.12 -C.sub.16.
REFERENCES:
patent: 2574954 (1951-11-01), Bishop
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patent: 2892724 (1959-06-01), Westlund et al.
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Kirk-Othmer, Encyclopedia of Chemical Technology, II, vol. I (1963), pp. 813-814 & 819-820.
Perry's Chemical Engineering Handbook, 5th Ed. (1973), pp. 9-9.
Rose, The Condensed Chemical Dictionary, 7th Ed., 1966, p. 31.
Collins John H.
Kekish George T.
Lin Mei-jan L.
Miller Robert A.
Nalco Chemical Company
Premo John G.
Roberts, Jr. John S.
Schain Howard E.
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