An additive package for 70TBN marine cylinder oil was developed using high base number calcium naphthenate T114 as main metal detergent, then 70TBN marine cylinder oil was produced with said additive package. The physical and chemical properties of the prepared cylinder oil were tested and simulating performance evaluation was carried out using similar imported product as reference oil. Test results showed that the qualities of prepared cylinder oil and reference oil were at the same level, indicating that the prepared additive package could meet the demand of blending 70TBN marine cylinder oil. Moreover, this additive package exhibited good adaptability to various type I and type II base oil products (domestic and abroad) for blending qualified 70TBN marine cylinder oil. The commercial trial of producing said additive package showed that the reproducibility was excellent, and the prepared cylinder oil product having stable quality.%以T114高碱值环烷酸钙作为主要金属清净剂研制了70TBN船用气缸油复合添加剂.以70TBN船用气缸油复合添加剂调制、生产的70TBN船用气缸油的理化性质测试和模拟评定结果表明,该油品与国外同类船用气缸油质量相当,说明研制的复合添加剂可满足润滑油调合厂对70TBN船用气缸油复合添加剂的质量要求.该复合添加剂在国内外一类和二类基础油中具有较好的适应性,各项理化指标均达到70TBN船用气缸油复合添加剂暂定标准要求.工业试生产结果表明该复合添加剂的制备重复性良好,产品质量稳定.
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