10 results about "Dimethyl p-phthalate" patented technology

The invention relates to the technical field of beneficiation collecting agents, and discloses a flotation collecting agent for refractory copper oxide ore and a preparation method of the flotation collecting agent. The flotation collecting agent comprises, by mass, 59.3% of a chelating main agent, 19.76% of dimethyl phthalate, 15.81% of a pH response type segmented copolymer, 3.95% of 0 # light diesel oil, 0.24% of a quantum dot additive, 0.4% of shell source polypeptide, 0.08% of a magnetic recycling agent, 1.19% of an emulsion stabilizer, 0.04% of a calcium ion activating agent, 0.4% of tetrabutylammonium bromide and 23.73% of deionized water. Wherein the total mass percentage of other components except the deionized water is 100%, and the deionized water is independently added into the solid formula as a solvent to form the flotation collecting agent for the refractory copper oxide ore. According to the flotation collecting agent for the refractory copper oxide ore and the preparation method of the flotation collecting agent, through the design of multi-active-group collaboration, an intelligent carrier and the like, the flotation efficiency and selectivity of the refractory copper oxide ore are improved, prevulcanization is not needed, agent recovery and environmental protection are achieved, and a new scheme is provided for complex ore development.

The present application provides a BOG helium extraction method and system, and a MOF slurry absorbent and a preparation method thereof. The absorbent comprises 20-40wt% of a metal organic framework material and 60-80wt% of an organic solvent; the metal organic framework material comprises at least one of HKUST-1, CALF-20, ZIF-67 and ZIF-8; and the organic solvent comprises at least one of dimethyl phthalate, 1,3-dimethyl-2-imidazolinone, N-methyl pyrrolidone, sulfolane and methylcyclohexane. The BOG helium extraction method comprises: pretreating BOG raw gas to obtain He and N2 mixed gas; and under specific temperature and pressure conditions, contacting the He and N2 mixed gas with a volume ratio of 15-30:1 with the MOF slurry absorbent to obtain He. The technical scheme of the present application realizes efficient BOG absorption-adsorption separation and helium extraction under mild temperature and pressure conditions.

The invention provides a polyvinylidene fluoride-based composite material as well as a preparation method and application thereof, and belongs to the technical field of composite materials. The preparation method comprises the following steps: mixing graphene oxide and dimethyl phthalate, and carrying out a modification reaction to obtain a DMP-GO dispersion liquid; sequentially carrying out solid-liquid separation and drying treatment on the DMP (at) GO dispersion liquid to obtain a DMP (at) GO solid product; and preparing the polyvinylidene fluoride based composite material by taking the DMP (at) GO solid product and polyvinylidene fluoride as raw materials. The gas permeability coefficient of the prepared polyvinylidene fluoride-based composite material is remarkably reduced, and the polyvinylidene fluoride-based composite material has excellent gas barrier property and excellent mechanical property and can be well applied to a lining layer of a marine flexible pipe.

The present invention relates to an insulating film composition for a ceramic heater silicon carbide substrate and, more specifically, comprises: a first agent comprising 30-50 wt% of glass frit, 20-40 wt% of aluminum oxide, 1-5 wt% of ethyl cellulose and 20-30 wt% of 3-hydroxy-2,2,4-trimethylpentyl isobutyrate; and a second agent comprising 20-50 wt% of glass frit, 8-15 wt% of ethyl cellulose, 0.5-2 wt% of aluminum oxide, 40-65 wt% of 3-hydroxy-2,2,4-trimethylpentyl isobutyrate and 0.1-1 wt% of dimethyl phthalate. A wafer-sized SiC substrate having a thickness of 2t or less, excellent insulating properties and minimized warpage can be manufactured using the insulating film composition for a ceramic heater silicon carbide substrate, of the present invention, and can be applied to a thick-film heater, and thus can maximize the productivity of a product produced using the heater.

The invention relates to a hybridoma cell strain capable of secreting a diallyl phthalate monoclonal antibody and application of the hybridoma cell strain, and belongs to the technical field of immunodetection. The monoclonal antibody secreted by the hybridoma cell strain has excellent affinity and sensitivity to diallyl phthalate, IC50 of the monoclonal antibody to the diallyl phthalate reaches 500 ng / mL, and the monoclonal antibody secreted by the hybridoma cell strain has excellent affinity and sensitivity to structural analogues of the diallyl phthalate. The invention relates to a method for preparing diisononyl phthalate, which is characterized in that the diisononyl phthalate, such as dimethyl phthalate, diethyl phthalate, dinonyl phthalate, butyl benzyl phthalate, diisobutyl phthalate, di (2-ethylhexyl) phthalate and diisononyl phthalate, are not subjected to cross reaction. Therefore, the monoclonal antibody provided by the invention can be used for preparing an immunodetection product of diallyl phthalate, and an efficient detection method and means are provided for residue detection of diallyl phthalate in food.

The application discloses a bimetallic catalyst for preparing o-phthalaldehyde by dimethyl phthalate hydrogenation and a preparation method thereof, and belongs to the field of catalyst preparation and application. The Ni-Fe / Al2O3-ZrO2 catalyst loaded with nickel and iron bimetal is prepared by taking alumina and zirconium dioxide as carriers, wherein n(Ni):n(Fe):n(Al):n(Zr) = 0.1:0.05:2:1. The Ni-Fe / Al2O3-ZrO2 catalyst is prepared by first preparing a Ni-Fe / Al2O3-ZrO2 catalyst precursor and then carrying out a reduction reaction in a hydrogen atmosphere. The Ni-Fe / Al2O3-ZrO2 catalyst of the application will not be deactivated due to carbon deposition and metal sintering in the high-temperature hydrogenation process, prolongs the service life of the catalyst, promotes the reaction of preparing o-phthalaldehyde by dimethyl phthalate hydrogenation, and has great competitive advantages.

The invention relates to a double-sided flat velvet fabric with good comprehensive performance and a preparation process thereof, and belongs to the technical field of textiles. The problems that an existing fleece fabric is prone to static electricity and dust absorption, unstable in dyeing, poor in flatness, prone to deformation, poor in air permeability and the like are solved. The preparation process comprises the following steps: firstly, taking polyester filament yarns and composite yarns as connecting yarns, taking hydrophilic modified C-shaped hollow section polyester as terry yarns, and preparing gray fabric by adopting a double-sided knitting process; then treating the gray fabric with a pretreatment dye liquor, a dye liquor, dimethyl phthalate, peregal O, a chelating agent and a fuzzing agent in sequence to obtain a dyed gray fabric; and finally, drying, shaping, carding, shearing and shaping the dyed gray fabric to obtain the double-sided flat velvet fabric. The double-sided flat velvet fabric is good in heat retention property, fluffy, soft, high in wet permeability, breathable, smooth in hairiness, antistatic, not prone to pilling and deformation, and uniform and stable in dyeing.

The invention relates to the technical field of sewage treatment, and particularly discloses a treatment method of high-salinity wastewater containing dimethyl phthalate pollutants. According to the method, a copper-nickel electrode is used as a cathode, a ruthenium oxide electrode is used as an anode, the mass ratio of copper to nickel in the copper-nickel electrode is (5: 5)-(9: 1), supporting electrolyte sulfate is added into the high-salinity wastewater to be treated, then disodium hydrogen phosphate is added, the pH of the high-salinity wastewater is adjusted to 8-8.5, a direct-current power source is additionally arranged, the current is 90-120 mA, and degradation of the dimethyl phthalate pollutants is completed. Hydrocracking of carbon-oxygen atom bonds can be realized through selective reduction of the copper-nickel electrode, so that the carbon-oxygen atom bonds are directly broken; the toxicity of pollutants is reduced while the dimethyl phthalate is degraded, hydroxyl radicals generated by the ruthenium oxide anode can attack parent compounds and the pollutants after bond breaking, the toxicity of the parent compounds and the pollutants is reduced, and the synergistic degradation and detoxification effects of the electrochemical cathode and anode are achieved.

The application discloses a coating for preventing sulfurization of an LED lamp bead and a coating process, and relates to the technical field of LED lamp beads. The coating for preventing sulfurization of the LED lamp bead comprises coating I and coating II; the coating II is encapsulating glue; the coating I is one of a top coating layer and a bottom coating layer; the top coating layer comprises a sulfur-proof layer; the sulfur-proof layer coating comprises 30-50 parts of polyurethane modified silicon resin, 2-4 parts of dimethyl phthalate, 1-2 parts of calcium carbonate, 1-3 parts of titanium oxide, 10-16 parts of glass fiber, 1-3 parts of an antioxidant, and 1-2 parts of an adhesion enhancer; the top coating layer further comprises a top coating transition layer; the top coating transition layer is phenyl vinyl silicon resin; the bottom coating layer comprises a sulfur-proof layer and a bottom coating adhesion layer; the bottom coating adhesion layer is epoxy group modified silicon resin. The coating process for preventing sulfurization of the LED lamp bead provided by the application comprises die bonding, wire bonding and coating processes, and the obtained LED lamp bead not only has strong sulfurization prevention performance, but also has good weather resistance.

The present disclosure provides a polyvinylidene fluoride-based composite material and a preparation method and application thereof, and belongs to the technical field of composite materials. The preparation method comprises the following steps: mixing graphene oxide and dimethyl phthalate to perform a modification reaction, so as to obtain a DMP@GO dispersion liquid; performing solid-liquid separation and drying treatment on the DMP@GO dispersion liquid in sequence, so as to obtain a DMP@GO solid product; and using the DMP@GO solid product and polyvinylidene fluoride as raw materials to prepare a polyvinylidene fluoride-based composite material. The polyvinylidene fluoride-based composite material prepared by the present disclosure has a significantly reduced gas permeation coefficient, excellent gas barrier performance, and excellent mechanical properties, and can be well applied to the inner lining layer of a flexible pipe for marine use.