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Hexane

About: Hexane is a research topic. Over the lifetime, 3759 publications have been published within this topic receiving 57996 citations. The topic is also known as: CH3-[CH2]4-CH3 & hexyl hydride.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the Soxhlet method with hexane as a solvent was used to extract animal fat and vegetable oil from two types of spent bleaching earths, namely from the acidic sepiolite and the nonacidic palygorskite.
Abstract: The extraction of oils based on animal fat and vegetable oil from two types of spent bleaching earths, namely from the acidic sepiolite and the nonacidic palygorskite, was investigated by the Soxhlet method with hexane as a solvent. The yields of oil were independent of the feedstock, whereas a much lower oil yield was obtained with palygorskite exhibiting also a smaller surface area as compared to sepiolite which provided a higher yield. The glyceride compositions were very similar in bleached and extracted oils, while slightly lower melting and crystallization energies were determined by differential scanning calorimetry for the extracted oils bleached with acidic clay indicating minor hydrolysis of triglycerides.

19 citations

Journal ArticleDOI
TL;DR: In this article, the critical temperature, pressure, and density of propane and n-hexane were determined and compared with the most reliable values reported in literature and the p(T) values were correlated by equations of the form: log 10 (p kPa ) = A − B( K T ).

19 citations

Patent
08 Jan 1999
TL;DR: In this paper, the problem of recycle stream contamination was solved by using metal salts of cyclic alcohols as modifiers in a solution polymerization system, which is based on the discovery of highly effective modifiers that do not co-distill with hexane or form-compounds.
Abstract: Metal salts of saturated aliphatic alcohols can be used as modifiers in lithium initiated solution polymerizations of diene monomers into rubbery polymers. Sodium t-amylate is a preferred modifiers because of its exceptional solubility in non-polar aliphatic hydrocarbon solvents that are employed as the medium for such solution polymerizations. However, using sodium t-amylate as the polymerization modifier in commercial operations where recycle is required can lead to certain problems. These problems arise due to the fact that sodium t-amylate reacts with water to form t-amyl alcohol during steam stripping in the polymer finishing step. Since t-amyl alcohol forms an azeotrope with hexane, it co-distills with hexane and thus contaminates the feed stream. The present invention solves the problem of recycle stream contamination. This invention is based upon the discovery of highly effective modifiers that do not co-distill with hexane or-form-compounds during steam stripping which co-distill with hexane. The modifiers of this invention are metal salts of cyclic alcohols. Since the boiling points of these metal salts of cyclic alcohols are very high, they do not co-distill with hexane and contaminate recycle streams. Additionally, metal salts of cyclic alcohols are considered to be environmentally safe. The, subject invention more specifically discloses an initiator system which is comprised of (a) a lithium initiator, (b) a metal salt of a cyclic alcohol, and (c) a polar modifier.

19 citations

Journal ArticleDOI
TL;DR: This work used a high surface area commercial HPLC alumina as a support material to develop a carbon phase by chemical vapor deposition (CVD) at elevated temperature using hexane vapor as the carbon source and the resulting carbon phases behaved as a reversed phase similar to C/ZrO(2).

19 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023205
2022429
202186
202092
201999
201891