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2856 results about "Thioether" patented technology

An organic sulfide (British English sulphide) or thioether is a functional group in organosulfur chemistry with the connectivity C–S–C as shown on right. Like many other sulfur-containing compounds, volatile sulfides have foul odors. A sulfide is similar to an ether except that it contains a sulfur atom in place of the oxygen. The grouping of oxygen and sulfur in the periodic table suggests that the chemical properties of ethers and sulfides are somewhat similar, though the extent to which this is true in practice varies depending on the application.

Luminescent element material and luminescent element comprising the same

The light emitting device of the present invention relates to a light emitting device which is characterized in that it is a device with an emissive substance present between an anode and cathode, and which emits light by means of electrical energy, and said device has a least one type of compound denoted by (a) to (d) below. (a) A compound having a plurality of 1,7-phenanthroline skeletal structures (b) A benzoquinoline derivative (c) A spiro compound represented by general formula (1) A1 and A2 are each selected from single bonds, substituted or unsubstituted alkyl chains, ether chains, thioether chains, ketone chains and substituted or unsubstituted amino chains. However, A1<> A2. Z represents carbon or silicon. R1 to R16 are each selected from hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxyl group, mercapto group, alkoxy group, alkylthio group, aryl ether group, aryl thioether group, aryl group, heterocyclic group, halogen, haloalkane, haloalkene, haloalkyne, cyano group, aldehyde group, carbonyl group, carboxyl group, ester group, carbamoyl group, amino group, nitro group, silyl group, siloxanyl group and a cyclic structure formed with an adjacent substituent. (d) A tetraphenylmethane derivative represented by general formula (2) R17 to R36 are each selected from hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxyl group, mercapto group, alkoxy group, alkylthio group, aryl ether group, aryl thioether group, aryl group, heterocyclic group, halogen, haloalkane, haloalkene, haloalkyne, cyano group, aldehyde group, carbonyl group, carboxyl group, ester group, carbamoyl group, amino group, nitro group, silyl group, siloxanyl group and a cyclic structure formed with an adjacent substituent. However, at least one of R17 to R36 is selected from substituents represented by general formula (3). -X-Ar (3) X is a single bond or is selected from the following, and Ar denotes a condensed aromatic ring or heteroaromatic ring. In the case where X is phosphorus oxide, then Ar represents an aromatic hydrocarbon or heteroaromatic ring. n is an natural number.
Owner:TORAY IND INC

Production method for ultra-low sulfur and high-octane number gasoline

The invention relates to a production method for ultra-low sulfur and high-octane number gasoline. The method comprises the following steps of: filling a poor-quality full range gasoline raw material in a reaction distillation column to contact the material with a sulfoether catalyst to perform a sulfur ether reaction and fraction cutting so that low-boiling point sulfides, such as thiol and thiophene, are converted into high-boiling point sulfoether which is then transferred into heavy fraction gasoline, wherein the cutting fractionation temperature of light fraction gasoline and the heavy fraction gasoline is 50 to 90 DEG C; contacting the light fraction gasoline with a hydrocarbon highly branched isomerization catalyst; contacting the heavy fraction gasoline with a selective hydrodesulfurization catalyst and a desulfurization-hydrocarbon isomerization/aromatization catalyst; and mixing the treated light fraction gasoline and the heavy fraction gasoline to obtain the ultra-low sulfur and high-octane number gasoline. The method is suitable for modifying poor-quality gasoline, can reach better desulfurization and olefin reduction effects on ultra-high sulfur and high-olefin poor-quality catalytic gasoline, and can maintain or increase the octane number of the product and keep a higher product yield after reaction.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
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