| 摘要 |
Metallo-organic compositions soluble in oils and hydrocarbon solvents, of a high transitional metal content and highly overbased character, are prepared from sources of transitional metals (or of transitional in conjunction with nontransitional metals) reacted with mixed organic acids comprising at least one monocarboxylic acid and a second acid, either a sulfonic acid or a different molecular weight monocarboxylic acid. Formation of the complexes requires the use of excesses of metal over acids, and the use of an oxygen-supplying material such as air, regardless of whether the metal source be a free metal, an oxide or a hydroxide. Alkoxyalkanols or glycols may be used in addition to the required acids. |
