How to produce compound calcium sulfonate lubricating oil and its processing technology
Issuing time:2022-11-15 08:19
In this paper, the production and preparation method of compound calcium sulfonate lubricating oil are discussed, which can be divided into one-step process and two-step process.
So the first thing to talk about. The whole process of the two-step production process of complex calcium sulfonate. Is generally high alkali calcium sulfonate as the carrier of raw materials, the basic principle of the Copernicus body high alkali calcium sulfonate in first convert agent into non Newtonian body under the influence of high alkali calcium sulfonate, then add boric acid solution mixed with hot water material dissolved in water soluble (boric acid solution or in part), and lime powder or calcium hydroxide mixed liquid containing 12 ~ 24 carbon atoms of oleic acid, Compound calcium sulfonate lubricating grease was obtained. (Boric acid solution is one of the commonly used materials as borate, borate is a good extreme pressure antiwear agent)
Then there is the whole process of one-step production process, this kind of processing technology is also very good. To blend neutralization sulfonic acid calcium, calcium hydroxide or sodium carbonate, base oil prices, convert agent and vulcanization accelerator system, until the whole coking process, obtain the non Newtonian body high alkali calcium sulfonate, then add the base oil prices, boric acid solution mixed with hot water material (boric acid solution dissolve in water soluble or in part), and lime powder or calcium hydroxide mixed liquid containing 12. Oleic acid with 24 carbon atoms is reflected to obtain a composite calcium sulfonate based lubricating grease. This kind of manufacturing method is quite good also.
Now sell in the market of calcium sulfonate already included Copernicus high alkali calcium sulfonate, therefore when preparing composite sulfonic acid calcium base grease, often omit calcium sulfonate high deashing processes, immediately by the high alkali calcium sulfonate by Copernicus body into non Newtonian body gradually, is take the two-step production process for making composite sulfonic acid calcium base grease. Some small skills are also available, such as in the conversion link, can also be carried out in the natural pressure opening kettle or working pressure kettle. If it is transformed in the natural pressure opening kettle, the reflected ambient temperature is kept at 80 ~ 100℃. If it is transformed in the working pressure kettle, the working pressure is given by the reflection itself, and the reflected ambient temperature is correspondingly raised to about 130℃, which can reduce the reaction speed. When the convertant contains toxic steam (such as industrial methanol), the best choice of working pressure kettle. After conversion, non-Newtonian calcium sulfonate with high partial alkali was obtained, then the temperature was raised, oleic acid, inorganic acid and alkali were added to carry out saponification reaction, and further compound into lipid. Then the temperature was reduced and preservatives and base oil prices were added to adjust the consistency of lubricating grease mortar. Some in order to control the cost, with the proportion of less high alkali calcium sulfonate create composite mortar consistency as sulfonic acid calcium base grease, able to carry out improvement on preparation methods, in turn 40% ~ 75% oleic acid to link, add sodium carbonate or attached at the time of conversion, but this will affect the production of lubricating grease a feature, such as continuous high temperature properties, Extreme pressure wear resistance, etc.
In addition, in order to improve the lubricating life of composite calcium sulfonate lubricating grease bearings, organic chemical urea chemicals can also be introduced in the preparation process. Due to the metal soap thickener with catalytic reaction of air oxidation chemical elements, and does not contain chemical elements organic urea thickener contrast, wetting service life is slightly shorter, for the same base oil price, organic chemical urea has a relatively long bearing lubrication life. Specific practices to oleic acid and boric acid solution saponification reaction after the end, continue to add C6 ~ C20 amine in the reaction system or their mixed substances and diisocyanate, reflecting the total weight of lubrication grease 0.5% ~ 5% organic urea chemicals