scispace - formally typeset
Search or ask a question

Can phenanthrene interference in the recovery of anthracene? 


Best insight from top research papers

Phenanthrene can interfere in the recovery of anthracene due to their miscibility in both liquid and solid states, as described in a study by Burel et al. . However, an improved process for obtaining anthracene and carbazole from mixtures containing phenanthrene has been developed using azeotropic distillation and selective crystallization, as described by Sugerman . Additionally, the presence of phenanthrene can affect the bioremediation of anthracene in contaminated soil, as shown in a study by Amin et al. . On the other hand, a method for the production of anthracene from phenanthrene has been disclosed, involving hydrogenation, isomerization, and dehydrogenation steps, as described by Handrick et al. . Therefore, while phenanthrene can interfere in the recovery of anthracene, various techniques and processes have been developed to overcome this interference.

Answers from top 5 papers

More filters
Papers (5)Insight
No, phenanthrene does not interfere in the recovery of anthracene.
No, phenanthrene does not interfere in the recovery of anthracene.
Yes, phenanthrene can interfere in the recovery of anthracene. The invention teaches the removal of anthracene and carbazole from mixtures containing phenanthrene.
Yes, phenanthrene can interfere in the recovery of anthracene as they form a binary system with polymorphic transitions and new biphasic domains.
The text does not provide information about the interference of phenanthrene in the recovery of anthracene.

Related Questions

How to recover benzene from perochemical?4 answersBenzene can be recovered from petrochemicals using various methods. One approach involves passing the feedstream through a permeation unit with a membrane that selectively absorbs benzene, allowing it to permeate to the other side under the influence of a concentration gradient. The permeated benzene is then vaporized and condensed into product streams, allowing for selective separation. Another method involves using a benzene recovery unit that utilizes a benzene cooler, a spray tower, and a circulating pump to recover benzene from a mixture gas of benzene steam and nitrogen. This unit has been shown to achieve over 95% benzene coefficient of recovery. Additionally, benzene can be removed and recovered from a mixed hydrocarbon stream by flowing the stream in countercurrent contact with an extractive distillation solvent system, followed by distillation and phase separation to obtain an aromatic product stream containing benzene. Extractive distillation with a solvent system containing dimethyl sulfoxide can also be used to separate benzene from a stream of mixed hydrocarbons, followed by distillation stripping and recycle of the solvent system.
How to improve the efficiency of anthracene up-conversion?4 answersTo improve the efficiency of anthracene up-conversion, several strategies have been explored. One approach is to achieve strong coupling between organic molecules and inorganic quantum dots through targeted linking chemistry, which allows for excited carriers to spatially delocalize across both anthracene and silicon. Another method involves the use of a NIR light initiated one-photon upconversion system, where the meso-rotatable anthracene in pentamethine cyanine is shown to improve hot-band absorption efficiency and amplify triplet yield, resulting in significantly increased generation of singlet oxygen. Additionally, the development of solid-state triplet-triplet annihilation photon upconversion systems has been investigated, with intramolecular transfers within a polymeric annihilator network shown to be efficient even at low concentrations, leading to faster overall kinetics. Furthermore, the modification of anthracene derivatives with bulky groups has been found to improve the dispersibility of the sensitizer and enhance upconversion quantum yield in solid-state systems.
What are the different applications of phenanthrene?5 answersPhenanthrene has various applications in different fields. It can be used in organic electroluminescent devices, such as organic solar cells and organic thin film transistors, due to its good thermal stability, high luminescent efficiency, and high luminescent purity. Phenanthrene and its derivatives also have potential applications in the fields of biological industry, medical industry, and organic photoelectric material science. In agriculture, phenanthrene-containing heterocyclic compounds can be used as insect and bacterium killing compositions to prevent diseases and pests in crops. Additionally, phenanthrene compounds found in junci medulla exhibit antifungal and antibacterial activities, making them useful for resisting certain plant diseases and drug-resistant bacteria. Furthermore, phenanthrene derivatives with cyano groups have been prepared and studied for their optical properties, indicating their potential use as electron-injection hole blocking layers in organic light-emitting diodes.
Is indene a common nucleus of aromatic hydrocarbons in petroleum?5 answersIndene is a common nucleus of aromatic hydrocarbons in petroleum. Petroleum fractions with higher molecular weights, such as asphaltenes, contain highly complex polynuclear aromatic systems, including indene. Additionally, the production of indene from tetrahydroindene has been studied, and it has been found that dehydrogenating tetrahydroindene in the presence of a metal-based dehydrogenation catalyst can yield indene as a main component. These findings suggest that indene is present in petroleum and can be produced through specific reactions.
How does triplet formation occur in a 9,10-bis(phenylethynyl)anthracene dimer and trimer?5 answersTriplet formation in a 9,10-bis(phenylethynyl)anthracene (BPEA) dimer and trimer occurs through singlet fission (SF). The dimer and trimer structures are formed by linking anthracene bisimide (ABI) units with butadiynylene spacers. The presence of strong intermolecular interactions between adjacent anthracene units in the nanoparticles promotes SF. The efficiency of SF in the dimer and trimer is lower compared to BPEA nanoparticles due to the decreased singlet state energy. The BPEA crystallizes into two polymorphs, which undergo SF with different rates. The triplet yields in the dimer and trimer are 109% and 98% respectively, compared to 122% in BPEA nanoparticles. These findings suggest that the dimer and trimer structures of BPEA can facilitate SF, making them promising candidates for enhancing solar cell performance.
How do aromatic hydrocarbons affect the environment?4 answersAromatic hydrocarbons, such as polyaromatic hydrocarbons (PAHs) and halogenated polycyclic aromatic hydrocarbons (HPAHs), have detrimental effects on the environment. These compounds are persistent, recalcitrant, and can accumulate in the food chain, posing risks to public health. PAHs are released into the environment through industrial activities and incomplete combustion of fossil fuels, while HPAHs can be found in air, sediment, fly ash, and biota samples. Aromatic hydrocarbons are known to exhibit mutagenic, carcinogenic, teratogenic, and toxic effects. They can cause genotoxicity, immunotoxicity, developmental toxicity, and carcinogenesis. These pollutants are difficult to degrade and persist in the atmosphere, soil, and sediment for long durations. Efforts are being made to develop eco-friendly and sustainable methods, such as rhizoremediation, to contain and degrade aromatic hydrocarbons in the environment. Understanding the behavior, physicochemical properties, and emission sources of aromatic hydrocarbons is crucial for effective environmental management and bioremediation strategies.