A process for the production of a lubricating oil additive concentrate comprises reacting at elevated temperature the following components:-
component (A) a defined acid
component (B) - a calcium base added either in a single addition or in a plurality of additions at intermediate points during the reaction,
component (C) - at least one compound which is (i) water, (ii) a polyhydric alcohol having 2 to 4 carbon atoms, (iii) a di-(C₃ or C₄) glycol, (iv) a tri-(C₂-C₄) glycol, (v) a mono- or poly-alkylene glycol alkyl ether of the formula (I)
R(OR¹)xOR² (I)
wherein R is a C₁ to C₆ alkyl group, R¹ is an alkylene group, R² is hydrogen or a C₁ to C₆ alkyl group and x is an integer from 1 to 6, (vi) a C₁ to C₂₀ monohydric alcohol, (vii) a C₁ to C₂₀ ketone, (viii) a C₁ to C₁₀ carboxylic acid ester, or (ix) a C₁ to C₂₀ ether, optionally, component (D) - a lubricating oil,
component (E) - carbon dioxide added subsequent to the, or each, addition of component (B), and
component (F) - a compound of formula II
R³X (II)
wherein X is a halogen and R³ is an alkyl, alkenyl or alkaryl group or halo derivative thereof.
一种生产润滑油添加剂浓缩物的工艺包括在高温下使下列组分发生反应:- 成分(A)
成分 (A) 一种确定的酸
成分(B)--一种
钙碱,可在反应过程中一次性加入或在中间点多次加入、
组分 (C) - 至少一种化合物,它是 (i)
水,(ii) 具有 2 至 4 个碳原子的多元醇,(iii) 二(C₃ 或 C₄)
乙二醇,(iv) 三(C₂-C₄)
乙二醇,(v) 式 (I) 的一元或多元烷二醇烷基醚
R(OR¹)xOR² (I)
其中 R 是 C₁ 至 C₆ 烷基,R¹ 是亚烷基,R² 是氢或 C₁ 至 C₆ 烷基,x 是 1 至 6 的整数、(vii) C₁ 至 C₂₀ 酮, (viii) C₁ 至 C₁₀
羧酸酯,或 (ix) C₁ 至 C₂₀ 醚,可选成分 (D) - 润滑油、
成分(E) - 在添加成分(B)后或每次添加后加入的
二氧化碳,以及
组分 (F) - 式 II 的化合物
R³X (II)
其中 X 为卤素,R³ 为烷基、烯基或烷芳基或其卤代衍
生物。