Aluminized silicious powder and water purification device incorporating same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-020/00
B01D-039/00
C01F-001/00
C01F-003/00
C01F-007/00
C01G-015/00
C22B-021/00
C22B-035/00
C22B-058/00
C22B-061/00
C02F-001/28
B01J-020/08
B01J-020/10
B01J-020/14
B01J-020/28
B01J-020/30
B01J-020/32
C02F-001/00
C02F-001/38
C02F-001/44
C02F-001/68
C02F-101/00
C02F-101/10
C02F-101/20
C02F-101/30
C02F-103/10
C02F-103/34
출원번호
US-0914092
(2013-06-10)
등록번호
US-9309131
(2016-04-12)
발명자
/ 주소
Kaledin, Leonid A.
Tepper, Frederick
Kaledin, Tatiana G.
출원인 / 주소
Argonide Corporation
대리인 / 주소
Passerin, Esq., Alicia M.
인용정보
피인용 횟수 :
3인용 특허 :
101
초록▼
A reaction product of silicious material, aluminum metal, and an aqueous solution is disclosed. The reaction product may be used to form a sorbent that is used to purify water of contaminants such as biological matter, dyes, soluble metals, arsenic, or radioactive elements. Additives may be added to
A reaction product of silicious material, aluminum metal, and an aqueous solution is disclosed. The reaction product may be used to form a sorbent that is used to purify water of contaminants such as biological matter, dyes, soluble metals, arsenic, or radioactive elements. Additives may be added to the reaction product to further improve the sorption qualities of the sorbent. Water purification devices having the sorbent are also disclosed.
대표청구항▼
1. A product consisting of a silicious powder at least partially coated by a coating of aluminum oxide/hydroxide, wherein the coating of aluminum oxide/hydroxide is present in an amount of 20% or greater by weight based on the total weight of the product. 2. The product of claim 1, wherein the coati
1. A product consisting of a silicious powder at least partially coated by a coating of aluminum oxide/hydroxide, wherein the coating of aluminum oxide/hydroxide is present in an amount of 20% or greater by weight based on the total weight of the product. 2. The product of claim 1, wherein the coating is electropositive. 3. The product of claim 1, wherein the product has a zeta potential of greater than 50 mV at a pH of 7. 4. The product of claim 1, made by heating a mixture to a temperature of from 25° C. to 100° C., the mixture consisting of (a) the silicious powder, (b) an aluminum metal comprising micron size particles, and (c) an alkaline solution, wherein the aluminum metal reacts with the alkaline solution to form the at least partial coating of aluminum oxide/hydroxide over the silicious powder. 5. The product of claim 4, wherein the silicious powder is present in the mixture in an amount from 60 to 98% by weight based on the weight of (a) plus (b). 6. The product of claim 1, wherein the silicious powder comprises diatomaceous earth, perlite, talc, vermiculite, sand, calcine composites, or combinations thereof. 7. The product of claim 4, wherein the aluminum metal is a powder, flakes, or combinations thereof. 8. The product of claim 4, wherein the aluminum metal is present in the mixture in an amount from 3 to 40% by weight based on the weight of (a) plus (b). 9. The product of claim 4, wherein the weight ratio of the silicious powder to the aluminum metal is from 40:1 to 1.5:1. 10. The product of claim 4, wherein the pH of the mixture is from 9 to 14. 11. The product of claim 4, wherein the aluminum metal reacts with the alkaline solution in the mixture to form the coating of aluminum oxide/hydroxide. 12. The product of claim 4, wherein the particles of aluminum metal have an average particle size of from 3.5 μm to 4.9 μm, as measured by a Fisher sub sieve sizer. 13. A sorbent comprising the product of claim 1. 14. A method of purifying water, the method comprising: (a)forming a liquid suspension by mixing the sorbent of claim 13 with a volume of water; and(b) separating a volume of purified water from the liquid suspension. 15. The method of purifying as in claim 14, wherein the separating is accomplished by a cyclone, a sedimentation chamber, a centrifuge, or a filter.
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