| abstract |
The method of producing paraffin emulsion is that at a temperature of 80 - 99 ° C 100 parts by weight of petroleum and / or synthetic paraffin 2 - 10 parts by weight of stearin and 5 - 15 parts by weight of glycerin monostearate and 0 - 5 parts by weight of ethoxylated sorbitan monostearate 0-5 parts by weight sorbitan monostearate, 0-5 parts by weight ethoxylated sorbitan monooleate and 0-5 parts by weight sorbitan monooleate are mixed until a homogeneous mixture is obtained. Then, a solution containing 0.2 - 1.0 parts by weight of sodium hydroxide in 60 - 250 parts by weight of water is metered in gradually so that the temperature in the reactor does not drop below 85 - 90 ° C, then the contents of the reactor are stirred at 90 - 99 ° C for another 10 - 60 minutes, after which the mixing is switched off, the whole is left for several minutes for preliminary deaeration, subjected to at least once two-stage homogenization, passing the contents of the reactor through a high-pressure homogenizer at a pressure of 5 - 60 MPa at the first stage of homogenization and at a pressure of 0.1 - 10.0 MPa in the second stage of homogenization. |