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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0929588 (1978-07-31) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 26 인용 특허 : 1 |
Hydrocarbon oils such as residual petroleum oils are efficiently deasphalted and demetallized with recovery of high quality asphalt by contact with a liquid mixture of at least two of the components selected from hydrogen sulfide, carbon dioxide and propane. The recovered deasphalted oil, which is c
In the process for deasphalting an asphaltene-containing mineral oil, which process comprises contacting said oil with a liquid deasphalting solvent under conditions of temperature and pressure effective to form two liquid phases, a deasphalted oil phase and a tar phase, separating said liquid phase
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