9 results about "Butyl carbitol" patented technology

The utility model relates to the technical field of chemical fractionation, and discloses a butyl carbitol fractionation device for preparing conductive silver paste, which comprises a condensation collection component, and a distillation device is arranged in front of the condensation collection component. According to the butyl carbitol fractionation device for preparing the conductive silver paste, by arranging a motor, a liquid guide pipe, a spiral conveying plate, a heating tank, a mounting plate, a first evaporation plate, a second evaporation plate, a connecting rod, a first spring and a limiting rod, a butyl carbitol solution is stirred by utilizing the spiral conveying plate, and meanwhile butyl carbitol flows downwards along the outer surface of the liquid guide pipe; the evaporation area of the butyl carbitol is enlarged, and when the butyl carbitol flows along the outer surfaces of the first evaporation plate and the second evaporation plate, the evaporation area of the butyl carbitol is further enlarged; by arranging a square plate, a second spring, a rotating shaft, a bracket, a stirring plate and a connecting shaft, a butyl carbitol solution is stirred by utilizing the stirring plate, and a stirring part is convenient to disassemble and assemble by pressing the rotating shaft downwards.

This invention provides a dyne pen ink, its preparation method, and its application. The dyne pen ink comprises ether compounds selected from ethyl carbitol and / or butyl carbitol. Through the design of the dyne pen ink components, this invention provides a novel, more environmentally friendly dyne pen ink with a 2-second observation time, without using toxic, carcinogenic, teratogenic, and reproductively toxic ethylene glycol ethyl ether. Furthermore, the dyne pen ink provided by this invention significantly improves abnormal shrinkage in smaller sizes (22-33), resulting in more accurate dyne values ​​obtained from testing, and the testing process does not significantly impact the health of the testers.

The application relates to a high-purity target material preparation process based on gold waste, and belongs to the technical field of target material preparation. Through optimization of a purification step and process parameters, efficient purification of gold waste is realized, meanwhile, vacuum smelting process parameters are regulated, energy consumption and emission of harmful substances are reduced, and the concept of sustainable development is met. A mixed solution of dibutyl carbitol and secondary octanol is preferably used as an extractant, which significantly improves the gold purification efficiency and selectivity, and ensures accurate separation of gold from the waste. Through two-stage smelting technology and reasonable setting of annealing parameters, gold target material with uniform composition, high mechanical strength and excellent performance is prepared. The application not only realizes resource utilization of gold waste, but also reduces environmental load, and the prepared target material meets the high-performance application requirement, and has remarkable economic and environmental benefits.

The present application relates to a kind of high breakdown voltage ceramic capacitor and its preparation method, capacitor includes: barium titanate base round ceramic sheet layer, glass glaze layer and electrode layer;Wherein, glass glaze layer covers in the side of barium titanate base round ceramic sheet layer, and the whole area at the distance of 0.2-0.5mm from upper and lower round face edge;Glass glaze layer upper portion is covered with electrode layer;The raw material of glass glaze layer includes: glass powder and organic carrier;Wherein, the raw material of glass powder includes: MgO, TiO2 、 Al2O3 And SiO2 ;The raw material of organic carrier includes pinene alcohol, butyl carbitol and acrylic resin.The present application increases glass glaze layer on ceramic sheet layer, since the dielectric constant of glass is much smaller than ceramic, so most voltage load is borne by glass glaze layer, and the anti-breakdown performance of glass material is far superior to barium titanate base round ceramic sheet, can satisfy in the premise of guaranteeing not to influence electrical property still can improve anti-breakdown.

The invention belongs to the technical field of superconducting material processing, and discloses an NbTi film for a superconducting coaxial cable and a preparation method of the NbTi film. NbTi superconducting powder, a dispersing agent, a binding agent and a solvent are subjected to ball milling and mixing to obtain slurry, the dispersing agent is phosphate, the binding agent is polyvinyl butyral, the solvent is butyl carbitol, the NbTi superconducting powder can be evenly dispersed in the slurry through the auxiliaries, and then the high-uniformity NbTi thin film is obtained through coating, drying and sintering. According to the low-temperature stepped drying scheme and the rapid thermal annealing sintering scheme, decomposition and volatilization of the auxiliaries can be promoted, NbTi particles are sintered to form a continuous network structure, and the NbTi thin film with the excellent superconducting performance is formed. The NbTi film preparation method provided by the invention is controllable in Nb / Ti design ratio, low in process cost and high in finished product uniformity, and has a wide application prospect in NbTi films for superconducting coaxial cables.

This invention belongs to the field of printed circuit technology and provides a copper electronic paste for glass-based printed circuits and its preparation method. The copper electronic paste for glass-based printed circuits includes composite modified copper powder, modified glass powder, and an organic carrier. The composite modified copper powder is composed of modified spherical copper powder and modified flake copper powder. The modified spherical copper powder is obtained by modifying spherical copper powder with an organic titanate, and the modified flake copper powder is obtained by modifying flake copper powder with a silicate. The modified glass powder is obtained by modifying glass powder with polyethyleneimine and a phosphate coupling agent. The glass powder is obtained by mixing B2O3, Bi2O3, ZnO, SiO2, Al2O3, P2O5, TiO2, ZrO2, La2O3, and MoO3 and then melting, water quenching, drying, and grinding. The organic carrier includes terpineol, butyl carbitol acetate, ethyl cellulose, and a thixotropic agent.

The invention discloses tungsten slurry with high viscosity stability and a preparation method thereof, and belongs to the technical field of tungsten slurry, the tungsten slurry comprises tungsten powder, the average particle size of the tungsten powder is 0.5-2.0 [mu] m; the composite organic solvent comprises tripropylene glycol monomethyl ether and butyl carbitol, and the composite organic solvent is formed by mixing the tripropylene glycol monomethyl ether and the butyl carbitol; and an additive, wherein the additive comprises dibutyl phthalate and 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate. The tungsten slurry has excellent viscosity stability: a remarkable synergistic effect is generated through a specific solvent combination and an additive combination, for example, when the tungsten slurry is stored for 5 days at normal temperature, the viscosity is only slowly reduced to 1.2 W from 1.5 W, the change amplitude is extremely small, and compared with the prior art, the viscosity is dramatically increased by several times or even dozens of times in the same period, and the viscosity stability is greatly improved. Therefore, the technical problem of poor storage stability of the slurry is solved.

This invention relates to the field of conductive paste preparation technology, providing an organic carbon nanotube conductive paste and its preparation method. The paste uses a binary organic solvent system composed of butylcarbitol and DMF, achieving efficient deagglomeration and uniform dispersion of carbon nanotubes without the need for dispersants. The preparation method includes: premixing DMF and butylcarbitol, adding carbon nanotube powder for further premixing, and finally obtaining the conductive paste through sand milling. This method ensures uniform dispersion and high stability of the paste by precisely controlling the solvent ratio, premixing parameters, and sand milling conditions. This invention overcomes the technical bottleneck of traditional dispersants limiting conductivity, simplifies the process, reduces production costs, and simultaneously improves battery energy density and fast-charging efficiency.

This invention discloses a DBC-oxalic acid chemical system for gold extraction and purification, belonging to the field of precious metal purification technology. The chemical system includes an extraction component and a reducing component: the extraction component includes the extractant dibutylcarbidol, a hydrochloric acid balancing agent, and optional diluents and phase modifiers; the reducing component includes the reducing agent oxalic acid, a pH adjuster, and optional seeding agents and surfactants. Through the synergistic effect of the extraction and reducing components, the chemical system of this invention achieves integrated selective separation and reduction of gold by utilizing the high selective extraction capability of DBC for Au(III) and the dual function of oxalic acid as both an extraction agent and a reducing agent. The separation coefficient βAu / Ag of this system is >10. 5 βAu / Cu>10 4 The extracted components can be recycled more than 50 times, and the oxalic acid reduction products are CO2 and H2O, which is environmentally friendly.