Calcium carbonate microsphere preparation method
A technology of calcium carbonate and microspheres, applied in the direction of calcium carbonate/strontium/barium, medical preparations of non-active ingredients, pharmaceutical formulas, etc., can solve the complex synthesis process of calcium carbonate microspheres, cumbersome calcium carbonate microsphere methods, Problems such as poor conveying capacity, to achieve the effect of low cost, controllable shape and low consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0017] A preparation method of calcium carbonate microspheres, the steps are as follows:
[0018] 1. Prepare 50mL0.1moL·L respectively -1 Calcium chloride and sodium carbonate aqueous solution, and then respectively prepare 10mL molar mass concentration of 10mmoL·L -1 sodium dodecylsulfonate aqueous solution and 5mL polyethyleneimine aqueous solution with a concentration of 1% by mass.
[0019] 2. Pour the prepared calcium chloride aqueous solution, sodium dodecylsulfonate aqueous solution and polyethyleneimine aqueous solution into a 250ml three-necked round-bottomed flask; then place the round-bottomed flask in an ultrasonic instrument and set up a stirring device , and mechanically stirred at 800r / min, reacted for 0.5 hours.
[0020] 3. The prepared 50mL0.1moL·L -1 The sodium carbonate aqueous solution is poured into 250ml three-neck round-bottomed flask rapidly, and stirs 2 hours with original stirring speed in the sonicator. Control the temperature at 15-20°C.
[002...
Embodiment 2
[0024] A preparation method of calcium carbonate microspheres, the steps are as follows:
[0025] 1. Prepare 50mL0.05moL·L respectively -1 Calcium chloride and sodium carbonate aqueous solution, and then respectively prepare 10mL molar concentration of 15mmoL·L -1 sodium dodecylsulfonate aqueous solution and 5mL polyethyleneimine aqueous solution with a concentration of 2% by mass.
[0026] 2. Pour the prepared calcium chloride aqueous solution, sodium dodecylsulfonate aqueous solution and polyethyleneimine aqueous solution into a 250ml three-neck round bottom flask together. Then place the round bottom flask in an ultrasonic instrument, set up a stirring device, and mechanically stir at 800r / min, and react for 0.5 hours.
[0027] 3. The prepared 50mL0.05moL·L -1 The sodium carbonate aqueous solution is poured into 250ml three-neck round-bottomed flask rapidly, and stirs 2 hours with original stirring speed in the sonicator. Control the temperature at 15-20°C.
[0028] 4....
Embodiment 3
[0031] A preparation method of calcium carbonate microspheres, the steps are as follows:
[0032] 1. Prepare 50mL0.1moL·L -1 Calcium chloride and sodium carbonate aqueous solution, and then respectively prepare 10mL molar concentration of 10mmoL·L -1 sodium lauryl sulfate aqueous solution and 5mL mass percent concentration of 2% polyacrylamide aqueous solution,
[0033] 2. Pour calcium chloride aqueous solution, sodium lauryl sulfate aqueous solution and polyvinylamide aqueous solution into a 250ml three-neck round bottom flask together. Then place the round bottom flask in an ultrasonic instrument, set up a stirring device, and mechanically stir at 800r / min, and react for 0.5 hours.
[0034] 3. The prepared 50mL0.1moL·L -1 The sodium carbonate aqueous solution is poured into 250ml three-neck round-bottomed flask rapidly, and stirs 2 hours with original stirring speed in the sonicator. Control the temperature at 15-20°C.
[0035] 4. First put the obtained liquid in a 50ml...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More