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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0765969 (2010-04-23) |
등록번호 | US7862709 (2010-12-20) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 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 at least about 71% by weight water, a wetting agent, a hydrotropic agent, and a dispersant having flocculating characteristics and an acid in an amount from about 1.7% to
What is claimed is: 1. A method for separating bitumen from oil sands, comprising:contacting a separating composition comprising at least about 71% by weight water, a wetting agent, a hydrotropic agent, and a dispersant having flocculating characteristics and an acid in an amount from about 1.7% to about 8.6% by weight and the acid is selected from the group consisting of nitric acid, sulfuric acid, hydronic acid, hydrobromic acid, perchloric acid, magic acid, carborane super acid, triflic acid, ethanoic acid, acetylsalicylic acid, and mixtures thereof with oil sands comprising bitumen, clay and sand;heating the separating composition and the oil sands;agitating the separating composition and the oil sands; andrecovering the bitumen and the clay and sand as separate products; wherein the wetting agent, the hydrotropic agent and a dispersant having flocculating characteristics are different.
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