A kind of preparation method of high temperature resistant lubricating grease
A high-temperature-resistant lubricating grease and technology of preparation steps, applied in lubricating compositions, petroleum industry, etc., can solve problems such as low self-ignition point of lubricating grease, fire, etc., and achieve low cost, good lubricating effect, and simple preparation steps
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example 1
[0019] Firstly, according to the mass ratio of 1:2, vinyl alcohol and sulfuric acid solution with a mass fraction of 30% are evenly mixed, placed in a high-pressure reactor, and heated to 200°C, and the pressure inside the reactor is controlled to 2MPa, polymerized After reacting for 2 hours, let it stand to cool to room temperature, move it into a beaker, and add a 15% sodium hydroxide solution into the beaker to adjust its pH to 7.0 to obtain a polydiethylene sulfate mixture for later use; then select 2 pieces Fresh pig suet, rinse it with clean water, cut it into pieces, and put it in an oil pan to cook on high heat until the oil piece turns yellow, then let it cool down to room temperature naturally, filter it, and collect The filtrate, i.e. liquid lard, is for later use; according to the mass ratio of 1:2, after stirring and mixing the magnesium chips and anhydrous ether evenly, place it in a round bottom flask, and add 2% iodine tablets by the mass of magnesium chips into...
example 2
[0021] Firstly, according to the mass ratio of 1:2, vinyl alcohol and sulfuric acid solution with a mass fraction of 30% are mixed uniformly, placed in a high-pressure reactor, and heated to 170°C, and the pressure inside the reactor is controlled to 1MPa, polymerized After reacting for 1 hour, let it stand to cool to room temperature, move it into a beaker, and add a 15% sodium hydroxide solution into the beaker to adjust its pH to 6.8 to obtain a polydiethylene sulfate mixture for later use; choose another piece Fresh pig suet, rinse it with clean water, cut it into pieces, and put it in an oil pan to cook on high heat until the oil piece turns yellow, then let it cool down to room temperature naturally, filter it, and collect The filtrate, i.e. liquid lard, is for later use; according to the mass ratio of 1:2, stir and mix the magnesium chips and anhydrous ether evenly, place it in a round bottom flask, and add 1% iodine tablets by mass of magnesium chips into the round bott...
example 3
[0023]First, according to the mass ratio of 1:2, mix vinyl alcohol and sulfuric acid solution with a mass fraction of 30% evenly, place it in a high-pressure reactor, and heat it up to 180°C, and control the pressure in the reactor to 2MPa, polymerize After reacting for 1 hour, let it stand to cool to room temperature, move it into a beaker, and add a 15% sodium hydroxide solution into the beaker to adjust its pH to 6.9 to obtain a polydiethylene sulfate mixture for later use; choose another piece Fresh pig suet, rinse it with clean water, cut it into pieces, and put it in an oil pan to cook on high heat until the oil piece turns yellow, then let it cool down to room temperature naturally, filter it, and collect The filtrate, i.e. liquid lard, is for later use; according to the mass ratio of 1:2, stir and mix the magnesium chips and anhydrous ether evenly, place it in a round bottom flask, and add 1% iodine tablets by mass of magnesium chips into the round bottom flask , stir ...
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