IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0276234
(2016-09-26)
|
등록번호 |
US-9776883
(2017-10-03)
|
발명자
/ 주소 |
- de Oliveira, Lupércio Tarcísio
|
출원인 / 주소 |
- Clean World Technologies Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
The disclosure features methods that include obtaining a first plurality of particles that include calcium carbonate, where the particles have a distribution of sizes between 8 mm and 12 mm, and heating the first plurality of particles to a temperature of between 900° C. and 1200° C. for a time peri
The disclosure features methods that include obtaining a first plurality of particles that include calcium carbonate, where the particles have a distribution of sizes between 8 mm and 12 mm, and heating the first plurality of particles to a temperature of between 900° C. and 1200° C. for a time period of at least 1 hour to generate a second plurality of particles that include calcium oxide.
대표청구항
▼
1. A method, comprising: obtaining a first plurality of particles comprising calcium carbonate, wherein each particle has a particle size corresponding to a maximum dimension of the particle, wherein a distribution of the particle sizes for the first plurality of particles has a minimum size corresp
1. A method, comprising: obtaining a first plurality of particles comprising calcium carbonate, wherein each particle has a particle size corresponding to a maximum dimension of the particle, wherein a distribution of the particle sizes for the first plurality of particles has a minimum size corresponding to a smallest particle in the first plurality of particles and a maximum size corresponding to a largest particle in the first plurality of particles, and wherein a difference between the maximum and minimum sizes is 4 mm or less; andheating the first plurality of particles to a temperature of between 900° C. and 1200° C. for a time period of at least 1 hour to generate a second plurality of particles comprising calcium oxide. 2. The method of claim 1, wherein the minimum size is between 4 mm and 12 mm and the maximum size is between 8 mm and 16 mm. 3. The method of claim 1, wherein a concentration of calcium carbonate in the first plurality of particles is at least 94%. 4. The method of claim 1, wherein a concentration of calcium carbonate in the first plurality of particles is at least 98%. 5. The method of claim 1, wherein a concentration of calcium carbonate in the second plurality of particles is less than 0.5%. 6. The method of claim 1, wherein a concentration of calcium carbonate in the second plurality of particles is less than 0.1%. 7. The method of claim 1, wherein an efficiency of conversion of calcium carbonate in the first plurality of particles to calcium oxide in the second plurality of particles is 95% or greater. 8. The method of claim 7, wherein the efficiency of conversion is 99% or greater. 9. The method of claim 1, wherein the first plurality of particles is heated to a temperature of between 1100° C. and 1200° C. to generate the second plurality of particles. 10. The method of claim 1, wherein the first plurality of particles is heated to a temperature of greater than 1000° C. to generate the second plurality of particles. 11. The method of claim 1, comprising increasing the temperature to which the first plurality of particles are heated during the time period. 12. The method of claim 11, comprising increasing the temperature in a sequence of steps during the time period, wherein at each successive step, the first plurality of particles are heated at a constant temperature that is higher than a temperature of an immediately preceding step, for a portion of the time period. 13. The method of claim 12, wherein the sequence of steps comprises at least three steps, and wherein: a first step in the sequence comprises heating the first plurality of particles to a temperature of between 900° C. and 1000° C.;a second step in the sequence comprises heating the first plurality of particles to a temperature of between 1000° C. and 1100° C.; anda third step in the sequence comprising heating the first plurality of particles to a temperature of between 1100° C. and 1200° C. 14. The method of claim 11, comprising continuously increasing the temperature to which the first plurality of particles are heated during the time period. 15. The method of claim 14, comprising increasing the temperature linearly between a first temperature of between 900° C. and 1000° C., and a second temperature of between 1100° C. and 1200° C. 16. The method of claim 1, wherein the time period is between 1 hour and 2 hours. 17. The method of claim 1, wherein the time period is between 2 hours and 3 hours. 18. The method of claim 2, wherein the difference between the maximum and minimum sizes is 3 mm or less. 19. The method of claim 2, wherein the difference between the maximum and minimum sizes is 2 mm or less. 20. The method of claim 1, wherein a specific surface area of the second plurality of particles is at least 10.0 m2/g. 21. The method of claim 1, wherein a specific porosity of the second plurality of particles is at least 15.0 cm3/g. 22. A composition, comprising: a plurality of particles comprising a calcium oxide concentration of at least 99%,wherein a surface area of the particles is at least 10.0 m2/g and a specific porosity of the particles is at least 15.0 cm3/g. 23. The composition of claim 22, wherein the surface area of the particles is at least 14.0 m2/g. 24. The composition of claim 22, wherein the surface area of the particles is at least 20.0 m2/g. 25. The composition of claim 22, wherein the specific porosity of the particles is at least 20.0 cm3/g. 26. The composition of claim 22, wherein the specific porosity of the particles is at least 30.0 cm3/g.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.