Barium sulfate and preparation method thereof
A barium sulfate and barium source technology, applied in the direction of calcium/strontium/barium sulfate, etc., can solve the problems of restricting the use of a large amount of barium sulfate, unfavorable addition of barium sulfate, and reducing the density of barium sulfate, so as to achieve mechanical strength and processability Excellent, easy to industrialized production, good mechanical strength and processability
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[0035] Example 1
[0036] 1) 5.0mol / L barium chloride solution of 85 weight parts is joined in the emulsifying cylinder, the pH value of barium chloride solution is adjusted to 7 with pH regulator, then add the sodium stearate of 3 weight parts, 10 weight 100 min of emulsification with ultrasonic waves to make the solution emulsified to form liquid droplets with a uniform and stable oil-in-water structure. The size of the oil core of the emulsion droplets can be controlled and adjusted according to the length of emulsification time and the amount of emulsifier;
[0037] 2) Pressurize the emulsion obtained in step 1) with a feed liquid pump, and then atomize through a nozzle to form a single small liquid droplet with an oil-in-water structure, and the atomized droplets are vulcanized by sulfur dioxide gas and oxygen respectively, Oxidation, that is, sulfur dioxide gas is first dissolved in the liquid beads to form sulfite, sulfite and barium ions generate barium sulfite, and th...
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[0039] Example 2
[0040] 1) The 3.0mol / L barium chloride solution of 90 parts by weight is added in the emulsifying cylinder, the pH value of the barium chloride solution is adjusted to 8 with the pH regulator, then the sodium stearate of 4 parts by weight, 12 weight parts are added. 80 min of emulsification with ultrasonic waves to make the solution emulsified to form liquid beads with a uniform and stable oil-in-water structure. The size of the oil core of the emulsion beads can be controlled and adjusted according to the length of emulsification time and the amount of emulsifier;
[0041] 2) Pressurize the emulsion obtained in step 1) with a feed liquid pump, and then atomize through a nozzle to form a single small liquid droplet with an oil-in-water structure, and the atomized droplets are vulcanized by sulfur dioxide gas and oxygen respectively, Oxidation, that is, sulfur dioxide gas is first dissolved in the liquid beads to form sulfite, sulfite and barium ions genera...
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[0044] Example 3
[0045] 1) The 2.0mol / L barium chloride solution of 90 parts by weight is joined in the emulsifying cylinder, the pH value of the barium chloride solution is adjusted to 9 with a pH regulator, then the dodecylbenzenesulfonic acid of 5 parts by weight is added Sodium and 15 parts by weight of oxidized polyethylene wax were emulsified by ultrasonic wave for 80min, so that the solution was emulsified to form liquid droplets with a uniform and stable oil-in-water structure. to control and adjust;
[0046] 2) Pressurize the emulsion obtained in step 1) with a feed liquid pump, and then atomize through a nozzle to form a single small liquid droplet with an oil-in-water structure, and the atomized droplets are vulcanized by sulfur dioxide gas and oxygen respectively, Oxidation, that is, sulfur dioxide gas is first dissolved in the liquid beads to form sulfite, sulfite and barium ions generate barium sulfite, and then the barium sulfite is rapidly oxidized to bari...
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