Chapman and Cutler LLP
Oil-based dispersing method of drag reduction polymers
An oil-based suspension-dispersion system of drag reduction polymers and the method for preparing same, characterized in adding 0.001-0.1 wt % of ultraviolet absorber and 0.001-0.1 wt % of bactericide into 50-90 wt % of vegetable oil and then mixing the obtained mixture to be homogeneous for use as dispersant, adding 2-25 wt % of separant into 10-40% of extra-high-molecular α-olefin-styrene polymer based drag reduction polymer and crushing them into powders at a temperature of lower than −90° C., based on the total weight of the suspension-dispersion system, and then adding the obtained mixture into the dispersant and stirring the mixture by using a high speed emulsion machine to make the mixture homogeneous and emulsified. The system offers a low viscosity of the suspended dispersion system, a high solid content up to 35%; improved high temperature resistance performance, higher flash point, improved safety, and good stability in storage.
PetroChina Company Limited
C
C08K
inventional
Yanqing Chunman Bing Guoping Xuchen
Gao Li Liu Li Bao