A kind of isostearic acid composite metal salt detergent and preparation method thereof
A composite metal salt and isostearic acid technology, which is applied in additives, lubricating compositions, petroleum industry, etc., can solve the problems of slow neutralization speed and low reactivity of metal magnesium salt detergents, and achieve good alkali value performance, Excellent dispersibility and low viscosity
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Embodiment 1
[0027] The isostearic acid composite metal salt detergent described in the present embodiment, its raw material composition comprises:
[0028] Isostearic acid 0.5kg, pentaerythritol tetracaprylate base oil 3kg, calcium oxide 0.5kg, magnesium oxide 3kg, solvent (ethyl acetate) 10kg, methanol 1kg, water 1kg, carbon dioxide 4kg.
[0029] The isostearic acid composite metal salt detergent of the present invention is prepared according to the following steps:
[0030] (1) Add the selected amount of isostearic acid, pentaerythritol tetracaprylate, solvent and methanol into the reactor and mix well;
[0031] (2) mix the selected amount of calcium oxide and magnesium oxide evenly, take 50wt% of the total amount of the mixture and add it to the reactor, and control the temperature at 20°C to carry out the salt-forming reaction;
[0032] (3) Add the calcium oxide and magnesium oxide mixture of remaining 50wt% into the reactor and mix evenly, add a selected amount of water, and feed a ...
Embodiment 2
[0035] The raw material composition of the isostearic acid composite metal salt detergent described in this embodiment is the same as that of Example 1.
[0036] The isostearic acid composite metal salt detergent of the present invention is prepared according to the following steps:
[0037] (1) Add the selected amount of isostearic acid, pentaerythritol tetracaprylate, solvent and methanol into the reactor and mix well;
[0038] (2) mix the selected amount of calcium oxide and magnesium oxide evenly, take 50wt% of the total amount of the mixture and add it to the reactor, and control the temperature at 20°C to carry out the salt-forming reaction;
[0039] (3) Whole reaction system is heated up to 55 ℃, and the calcium oxide and magnesia mixture that gets remaining 50wt% is added into reactor and mixes evenly, adds the water of selected amount, and feeds the carbon dioxide gas of selected amount (ventilation rate is 210mL / min ), continue to react;
[0040] (4) Filter the abo...
Embodiment 3
[0042] The isostearic acid composite metal salt detergent described in the present embodiment, its raw material composition comprises:
[0043] Isostearic acid 2kg, pentaerythritol tetracaprylate base oil 1.5kg, calcium oxide 3kg, magnesium oxide 0.5kg, solvent (vinyl acetate) 30kg, methanol 0.2kg, water 8kg, carbon dioxide 0.5kg.
[0044] The isostearic acid composite metal salt detergent of the present invention is prepared according to the following steps:
[0045] (1) Add the selected amount of isostearic acid, pentaerythritol tetracaprylate, solvent and methanol into the reactor and mix well;
[0046] (2) mix the selected amount of calcium oxide and magnesium oxide evenly, take 50wt% of the total amount of the mixture and add it to the reactor, and control the temperature at 50°C to carry out the salt-forming reaction;
[0047] (3) Add the remaining 50wt% calcium oxide and magnesium oxide mixture into the reactor and mix evenly, add a selected amount of water, and feed a...
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