摘要:
The present disclosure relates to preparation of liquid salt including but not limiting to ionic liquid and applications thereof. More particularly, the present disclosure provides a process for preparing ionic liquid which comprises reacting at least one electron-pair acceptor and at least one electron-pair donor to form an adduct, and reacting the adduct with at least one electron-pair acceptor to prepare said salt. The present disclosure also provides for applications of the ionic liquid prepared in the present disclosure.
摘要:
The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose) and ethylene in the presence of an acid, such as a Lewis acid. For example, cellulose and/or hemicellulose may be converted into 2,5-dimethylfuran (DMF) and 2-methylfuran, which may be converted into para-xylene and toluene, respectively. In particular, para-xylene can then be oxidized to form terephthalic acid.
摘要:
The present invention relates to a catalyst, a process for the manufacture of said catalyst and a process for catalytic oxidative dehydrogenation using said catalyst. The catalyst comprises LiCl (A) and one or more chlorides being different from LiCl (B) on a support (C) which comprises a lanthanide oxide different from dysprosium oxide.
摘要:
A catalyst composition for a cross-coupling reaction comprising a nickel metal source, a fluorine source, and a nitrogen-containing heterocyclic compound having a specific structure, or a phosphine compound. Using this catalyst composition, a cross-coupled compound R 5 -R 6 (wherein R 5 and R 6 are an aryl or heteroaryl group, or a linear, branched or cyclic alkyl group or a linear, branched or cyclic alkenyl group) is produced with a high selectivity by allowing an organometallic compound of the formula (2) R 5 -MY 1 or the formula (3) R 5 -M-R 5 (wherein R 5 is the same as defined above, M is a Mg or Zn atom, and Y 1 is a halogen atom) to react with a compound of the formula (4) R 6 -Y 2 (wherein R 6 is the same as defined above, and Y 2 is a halogen atom, a methanesulfonate group, a toluenesulfonate group or a trifluoromethanesulfonate group).
摘要:
Die Erfindung betrifft Komplexverbindungen des Rutheniums der allgemeinen Strukturformel I in der X ein anionischer Ligand ist, Z einen ein- bis dreizähnigen Liganden darstellt, der ein Metall enthält und nichtionisch an das Rutheniumzentrum gebunden ist, R 1 und R 2 gleich oder unabhängig voneinander verschieden sind und für Wasserstoff oder/und eine Kohlenwasserstoffgruppe stehen, aber auch einen Cyclus ausbilden können, und Ligand L ein N-heterocyclisches Carben ist, sowie ein Verfahren zur Herstellung von acyclischen Olefinen mit zwei oder mehr Kohlenstoffatomen oder/und von cyclischen Olefinen mit drei oder mehr Kohlenstoffatomen und die Verwendung von mindestens einer Komplexverbindung gemäß Formel I in der Olefin-Metathese.
摘要:
Die Erfindung betrifft Komplexverbindungen des Rutheniums der allgemeinen Strukturformel I in der X ein anionischer Ligand ist, Z einen ein- bis dreizähnigen Liganden darstellt, der ein Metall enthält und nichtionisch an das Rutheniumzentrum gebunden ist, R 1 und R 2 gleich oder unabhängig voneinander verschieden sind und für Wasserstoff oder/und eine Kohlenwasserstoffgruppe stehen, aber auch einen Cyclus ausbilden können, und Ligand L ein N-heterocyclisches Carben ist, sowie ein Verfahren zur Herstellung von acyclischen Olefinen mit zwei oder mehr Kohlenstoffatomen oder/und von cyclischen Olefinen mit drei oder mehr Kohlenstoffatomen und die Verwendung von mindestens einer Komplexverbindung gemäß Formel I in der Olefin-Metathese.
摘要:
In a process for the production of 2,3-dimethylbutenes by the dehydrochlorination of 1-chloro-3,3-dimethylbutane in the presence of a catalyst, a conversion of the starting material and selectivity of the desired product can be improved when at least one compound selected from the group consisting of magnesium compounds, calcium compounds and lanthanum compounds is used as the catalyst.
摘要:
Olefins are produced by the reductive dehydroxylation of vicinal polyols or esters thereof, or a combination thereof, in a liquid reaction medium, under a hydrogen atmosphere, at a temperature from 50 °C to 250 °C, in the presence of a halogen-based, preferably iodine-based, catalyst. Examples of the catalyst, which may be included independently or generated in situ , are iodine (I 2 ), hydroiodic acid (HI), iodic acid (HIO 3 ), lithium iodide (LiI), and combinations thereof.
摘要:
The invention relates to a process for preparing jet fuel or jet fuel precursors which comprises the treatment of a charge derived from biomass, the said charge comprising at least one compound chosen from terpenes of formula [CH 2 =C(CH 3 )CH=CH 2 ]n, in which n is an integer of from 2 to 12, the carbon chain of which is linear, cyclic or branched, or cyclic or branched terpenes as defined previously, which have been chemically modified by oxidation and/or rearrangement of the carbon backbone, the said process comprising a cycloaddition step (i) followed by a cracking and hydrogenation step (ii).