최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | UP-0761845 (2010-04-16) |
등록번호 | US-7785462 (2010-09-20) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 2 인용 특허 : 343 |
Compositions and methods are provided for separating bitumen from oil sands in an efficient and environmentally acceptable manner, and for recovering residual bitumen from existing tailings ponds.
What is claimed is: 1. A method for separating bitumen from oil sands, comprising: contacting a separating composition comprising: 1) from about 0.1% to about 4.0% by weight of an aromatic phosphate ester having the formula: wherein R1 is a C1-C5 linear or branched alkyl group and n=1 to 8; 2)
What is claimed is: 1. A method for separating bitumen from oil sands, comprising: contacting a separating composition comprising: 1) from about 0.1% to about 4.0% by weight of an aromatic phosphate ester having the formula: wherein R1 is a C1-C5 linear or branched alkyl group and n=1 to 8; 2) up to about 4.5% by weight of sodium acid pyrophosphate; 3) up to about 4.5% by weight of tetrapotassium pyrophosphate; 4) from about 2% to about 9.5% by weight of a base selected from the group consisting of sodium hydroxide, potassium hydroxide, barium hydroxide, cesium hydroxide, strontium hydroxide, calcium hydroxide, lithium hydroxide, rubidium hydroxide, sodium hydride, lithium diisopropylamide, sodium amide, and mixtures thereof; and 5) from about 1.7% to about 8.6% by weight of an acid selected from the group consisting of phosphoric acid, nitric acid, sulfuric acid, hydronic acid, hydrobromic acid, perchloric acid, fluoromatic acid, magic acid, carborane super acid, triflic acid, ethanoic acid, acetylsalicylic acid, and mixtures thereof with oil sands comprising bitumen and sand; heating the separating composition and the oil sands; agitating the separating composition and the oil sands; and recovering the bitumen and sand as separate products. 2. The method of claim 1, wherein the heating comprises heating the separating composition and the oil sands to from about 32° C. to about 72° C. 3. The method of claim 2, wherein the acid is sulfuric acid and the base is sodium hydroxide. 4. The method of claim 1, wherein the contacting comprises contacting the separating composition and the oil sands in a ratio of from about 2:3 to about 3:2. 5. The method of claim 4, wherein the acid is sulfuric acid and the base is sodium hydroxide. 6. The method of claim 1, wherein the method is performed without addition of an organic solvent. 7. The method of claim 6, wherein the acid is sulfuric acid and the base is sodium hydroxide. 8. A method for separating bitumen from tailings, comprising: contacting a separating composition comprising: 1) from about 0.1% to about 4.0% by weight of an aromatic phosphate ester having the formula: wherein R1 is a C1-C5 linear or branched alkyl group and n=1 to 8; 2) up to about 4.5% by weight of sodium acid pyrophosphate; 3) up to about 4.5% by weight of tetrapotassium pyrophosphate; 4) from about 2% to about 9.5% by weight of a base selected from the group consisting of sodium hydroxide, potassium hydroxide, barium hydroxide, cesium hydroxide, strontium hydroxide, calcium hydroxide, lithium hydroxide, rubidium hydroxide, sodium hydride, lithium diisopropylamide, sodium amide, and mixtures thereof; and 5) from about 1.7% to about 8.6% by weight of an acid selected from the group consisting of phosphoric acid, nitric acid, sulfuric acid, hydronic acid, hydrobromic acid, perchloric acid, fluoromatic acid, magic acid, carborane super acid, triflic acid, ethanoic acid, acetylsalicylic acid, and mixtures thereof with tailings comprising bitumen and sand; heating the separating composition and the tailings; agitating the separating composition and the tailings; and recovering the bitumen and sand as separate products. 9. The method of claim 8, wherein the heating comprises heating the separating composition and the tailings to from about 32° C. to about 72° C. 10. The method of claim 9, wherein the acid is sulfuric acid and the base is sodium hydroxide. 11. The method of claim 8, wherein the contacting comprises contacting the separating composition and the tailings in a ratio of from about 2:3 to about 3:2. 12. The method of claim 11, wherein the acid is sulfuric acid and the base is sodium hydroxide. 13. The method of claim 8, wherein the method is performed without addition of an organic solvent. 14. The method of claim 13, wherein the acid is sulfuric acid and the base is sodium hydroxide.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.