82 results about "Organic chemistry" patented technology

A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.

A composition of foundation type comprising, in a physiologically acceptable medium, at least one coloring agent, the composition being capable, when it is applied to dark skin, of producing a positive lightness variation ΔL* of between 0.5 and 4 and a positive saturation variation ΔC* of between 0.5 and 4.

The invention discloses an alcaligenes faecalis and application thereof. The alcaligenes faecalis is named alcaligenes faecalis (Alcaligenesfaecalis) NR and is stored in the China General Microbiological Culture Collection Center (CGMCC) with CGMCCNo.7543 on April 28, 2013. The alcaligenes faecalis is applicable to the treatment of nitrogen-containing organic wastewater and can be used for synchronously removing nitrogen and organic carbon in the wastewater. The alcaligenesfaecalis NR has both functions of denitriding and removing the organic carbon synchronously, only needs one aerobic stage to realize the synchronous removal of the organic carbon and nitrogen, and has the removal rate of about 80 to 90% for the organic ratio, and the removal rate of about 78 to 88% for TN (Total Nitrogen).

A process for the preparation of a heterocyclic macrocycle-templated supramolecular metal organic material, the process comprising preparing a reaction mixture containing a metal, a heterocyclic macrocycle, and organic ligands and forming, in the reaction mixture, a heterocyclic macrocycle-templated metal organic material comprising the metal, the heterocyclic macrocycle and the ligands by template-directed synthesis with the heterocyclic macrocycle serving as the template and being encapsulated within a cage of the template metal organic material.

The invention relates to a preparation method of general flavone of purple perilla and particularly relates to a method for extracting general flavone of purple perilla by adopting an enzyme-microwave method. The preparation method comprises the following steps: drying purple perilla leaves in the shade; crushing; adding a compound enzyme which is 1-2% of the weight of raw material; uniformly mixing; spraying distilled water till purple perilla leaves can be made into a ball with hands; wrapping by a film; fermenting for 3-5 days at 30-40 DEG C; taking out, adding a 50-70% ethanol solution, carrying out microwave extraction for 20-40 minutes, concentrating under reduced pressure, and recovering ethanol to obtain a concentrated solution; loading the obtained concentrated solution on a macroporous resin column and eluting; and collecting eluant, concentrating and drying to obtain general flavone of purple perilla. Ethanol which is cheap and non-toxic is used as the solvent. The content of the general flavone of the purified product is over 70%. The general flavone is good in repeatability and resin can be repeatedly used.

The invention relates to the fields of organic synthesis and medicinal chemistry, in particular to a kind of 8-substituted and 11-substituted 5-demethylated iso-cryptolepine derivatives, structurally shown in the general formula (I). The invention further discloses a preparation method for the iso-cryptolepine derivatives and application of the iso-cryptolepine derivatives in the preparation of anti-tumor medicaments. An in-vitro anti-tumor activity test result shows that the iso-cryptolepine derivatives have higher suppression activity to MCF-7, HCT-116 and DU-145 cell strains, GI50 values of a part of the iso-cryptolepine derivatives are equivalent to that of a positive medicament adriamycin, and a novel anti-tumor medicament can be further developed and prepared (referring to the Specification for the general formula (I)).

The invention discloses a suspended seed coating. According to the suspended seed coating, active components include dinotefuran and pyraclostrobin. The suspended seed coating has the characteristics of good film forming property, uniformity in coating, high suspension rate, safety, high efficiency, low toxin, convenience in use and the like; the environmental pollution can be reduced, the utilization rate of pesticides is improved and the usage amount of the pesticide is reduced; the suspended seed coating is widely applied to processing seeds of crops such as paddy rice, wheat, corns, soybeans and peanuts.

The invention relates to the field of energy storage materials, in particular to an electrolyte and a battery. The electrolyte is prepared from an organic solvent, an electrolyte body and additives, wherein the additives comprise an additive A and an additive B; the additive A is at least one selected from compounds shown as general formulae I, II and III in the description; the additive B is at least one selected from fluorophosphate compounds and fluorophosphite compounds. With the adoption of the electrolyte, high-temperature cycle performance and high-temperature storage performance of thebattery under high pressure can be improved remarkably.

The invention discloses a Ni3P/SiO2 catalyst as well as a preparation method and application thereof. The Ni3P/SiO2 catalyst is composed of a SiO2 carrier and Ni3P loaded on the SiO2 carrier, the mass percent of Ni3P in the catalyst is 10-45%, the balance is the SiO2 carrier, the particle size of Ni3P in the catalyst is 6-15 nanometers, and the specific surface area of the catalyst is 50-250 m<2>/g. Experiments show that the Ni3P/SiO2 catalyst provided by the invention is high in activity, high in selectivity and good in stability, especially has the advantages that the selectivity of methyl glycolate can still reach 85% or above under deep conversion of dimethyl oxalate (greater than 99.9%), a high-selectivity temperature window is wide and the like, and can be used as a catalyst for a reaction of preparing methyl glycolate through hydrogenation of dimethyl oxalate; and in addition, the preparation method disclosed by the invention is simple, mild in condition and easy to realize large-scale production.

The invention belongs to the field of chemical engineering, particularly relates to a method for converting synthesis gas into low-carbon olefin. The method for converting synthesis gas into low-carbon olefin, provided by the invention, includes the following steps: (a), preparation of a catalyst; (b), conversion of low-carbon olefin. The low-carbon olefin obtained through adopting the method for converting synthesis gas into low-carbon olefin accounts for 80% above the total product, which is about 10% higher than 72-74% in the prior art.

The invention relates to a catalyst for preparing acrylic acid by oxidation of acrylic aldehyde, a preparation method of the catalyst, and a synthesis method of acrylic acid, and is used for mainly solving the problem of not high selectivity of an acrylic acid catalyst in the prior art. The technical problem is better solved through adopting the technical scheme that the acrylic acid catalyst contains an active component represented by the following general formula of Mo12VaCubXcYdZeKfOj, wherein X is at least one selected from W, Cr and Sn, Y is at least one selected from Fe, Bi, Co, Ni, Sb, Zr and Sr, and Z is at least one selected from lanthanide elements. The acrylic acid catalyst can be used in industrial production of acrylic aldehyde oxidation production of acrylic acid.

The invention provides a purification method of hexachlorodisilane. The purification method comprises the following steps: introducing industrial grade hexachlorodisilane into an exchange column filled with adsorptive resin; and carrying out adsorption and purification under the conditions that the temperature is 50-65 DEG C and the flow rate is 0.2-2BV/h to obtain a prodcut which is the purifiedhexachlorodisilane prodcut.

The invention relates generally to novel laundry detergent compositions comprising linalol and uses thereof. Aspects of the invention include a laundry detergent that includes an effective amount of linalol, which has not been modified to provide a fragrance, for improving color retention and fabric softening qualities and reducing soap residue retention and static electricity.

The invention relates to the technical field of water-based coatings for mechanical industry, and particularly relates to a high-performance water-based acrylic coating and a preparation method thereof. The water-based acrylic coating comprises 30 to 50 parts of water-based acrylic resin, 0.5 to 2 parts of a dispersant A, 0.05 to 1 part of an amine neutralizer, 0.05 to 1 part of an antifoaming agent, 0.05 to 1 part of a leveling agent, 0.05 to 1 part of a wetting agent, 1 to 15 parts of a coalescing agent, 0.1 to 2 parts of an anti-settling agent, 5 to 30 parts of a pigment filler, 0.1 to 1 part of a thickener, 15 to 30 parts of distilled water, 2 to 10 parts of silica sol and 0.05 to 0.5 part of a dispersant B, wherein the dispersant B is an alcohol amine organic matter. The drying speedof the water-based acrylic coating produced by adopting the formula and the preparation method is obviously increased at 25 DEG C, and the hardness can reach HB-H after the water-based acrylic coatingis dried for 4 h.

The invention provides a low-VOC content aromatic PC/ABS composite material and a preparation method thereof. The low-VOC content aromatic PC/ABS composite material provided by the invention comprisesthe following components in percent by weight: masterbatch A comprising 30-80% of PC resin, 10-60% of ABS resin, 2-10% of a compatibilizer and 1-10% of other additives, and masterbatch B comprising 50-99.9% of PC or ABS, 0.1-50% of aromatic liquid and 0.2-2% of diatomite. Through respective preparation of the masterbatch A and the masterbatch B, the masterbatch A is aromatized by baking, and generation of the odor of plastic is reduced by vacuumizing to remove small molecular harmful substances in a first conveying section during preparation of the masterbatch B; through addition of the diatomite into the masterbatch B, VOC substances, such as dimethylbenzene, which are not removed during processing can be effectively adsorbed; and through addition of an aromatic material, aroma is addedto the PC/ABS material, so that the low-VOC content aromatic PC/ABS composite material has a broad market prospect.

What are provided are pulverulent mixtures based on specific nitrile rubbers and at least one separating agent, and also a process for producing vulcanizable mixtures and vulcanizates made from these pulverulent mixtures, and the resultant vulcanizates and their use, especially in tyre treads, where an improvement in wet skid resistance, dry grip and rolling resistance delivers is observed with simultaneously good mixing characteristics.