37results about How to "Slow oxidation" patented technology

The invention relates to a method for preparing a material containing amorphous iron oxide hydroxide and two methods for regenerating the same after being used as desulfurizer. The content of the amorphous iron oxide hydroxide in the material prepared by the invention is as high as 65% to 100%, so the sulfur capacity of the material is high; and the desulfurizer in the prior art is non-regenerative or costly for regeneration, so that the desulfurizer in a large amount cannot but be dumped as waste liquid in landfills, while the amorphous iron oxide hydroxide in the material of the invention can be repeatedly regenerated and reused after the material is used as the desulfurizer, thereby solving the problems of the waste of effective resources in the original desulfurizer and the severe environmental pollution.

The invention belongs to the technical field of semiconductor memories and particularly relates to a method for integrating a manganese-oxide-based resistive memory with a copper interconnection rear end process. In the method for process integration, manganese metal in a cap layer on a copper lead wire is siliconized to form a MnSi compound layer and the MnSi compound layer is oxidized to form aMnSi(x)O(y) storage medium layer; and a manganese silica compound layer is used as a barrier layer of the copper lead wire at a copper interconnection rear end. The method has the advantages of compatibility with the copper interconnection rear end process with process nodes equal to or less than 45 nanometers; and the manganese-oxide-based resistive memory has low preparation cost, high reliability and low power consumption.

The invention discloses a single tin salt electrolytic coloring additive. The single tin salt electrolytic coloring additive comprises a complexing agent, a buffer agent, an antioxidant and a surfactant, wherein the antioxidant comprises ferrous sulfate; the single tin salt electrolytic coloring additive also comprises an auxiliary agent containing ferrous sulfate; the auxiliary agent comprises modified amino amide zinc phosphate. The single tin salt electrolytic coloring additive disclosed by the invention has good comprehensive performances, solves the problem that nickel must take part in the reaction in an electrolytic coloring process, and is stable in groove liquid and quick and uniform to color, and the cost can be lowered effectively. Moreover, the single tin salt electrolytic coloring additive is low-carbon, energy-saving and green and environment-friendly, and process and product quality consistent to those of a double salt system can be obtained.

The invention discloses a modified carbon fiber containing a Ni-P-SiC (titanium diboride) composite plating layer and a preparation method and application thereof. The modified carbon fiber consists of a carbon fiber and a Ni-P-SiC composite plating layer, a Ni-P-TiB2 composite plating layer or a Ni-P-SiC-TiB2 composite plating layer on the surface thereof. The preparation method comprises the following steps: the surface of the carbon fiber is put in chemical plating liquid for chemically plating the Ni-P-SiC, Ni-P-TiB2 or Ni-P-SiC-TiB2 composite layer to obtain the compact and uniform composite plating layer after pretreatment of degumming, roughening, neutralization, sensitization, activation, reduction and peptization; the bonding force of the composite plating layer and the carbon fiber is high; the compatibility of the modified carbon fiber and a metal matrix is excellent; the dispersibility in the metal matrix is excellent; a carbon fiber reinforced metal base composite material with good mechanical performance, stable performance and good reliability can be prepared; and the preparation method of the modified carbon fiber is simple and low in cost, and facilitates industrial production.

The invention relates to a non-asbestos copper fiber brake plate material, composed of phenolic resin, frication dust, butadiene acrylonitrile rubber, alumina, chromite, feldspar, cut copper fiber, needle shape wollastonite powder, tire powder, magnesia and lignin fiber; the weight percentages of the ingredients are as follow: phenolic resin 8-12%, frication dust5-15%, butadiene acrylonitrile rubber2-5%, alumina5-10%, chromite15-25%, feldspar5-8%, cut copper fiber6-8%, needle shape wollastonite powder10-15%, tire powder15-20%, magnesia2-5% and lignin fiber15-20%. The non-asbestos fiber brake plate with a copper substrate is of high brake performance, stable friction coefficient, high thermal conduction, good head dissipation performance in the rubbing process and good plasticity and has no harm to dualization; the copper substrate has small binding affinity to oxygen and is slow to oxidate in air.

The invention relates to a grid section used for sintering acid mine. The grid section comprises the following components in percentage by weight: 1.1-1.3% of C, 26.0-28.0% of Cr, 0.3-0.5% of Mo, 1.0-1.5% of Ni, 1.0-1.5% of Si, 0.5-1.0% of Mn, 0.10% of Ti, 0.05-0.15% of Re, 1.0-2.0% of Al and the balance of Fe. The grid section disclosed by the invention is totally suitable for acid mine sintering working conditions and satisfies use requirements, the service life of the grid section is prolonged to more than 12 months from less than 3 months, and therefore the use cost of the grid section isgreatly lowered. Meanwhile, replacement frequency of the grid section can be reduced, the labor intensity of operators is lowered, downtime for replacing the grid section is shortened, and productionefficiency is improved.

The invention relates to a preparing method of a polyamide conductive fiber, and belongs to the technical field of fiber materials. With graphite as the carbon source, graphene grows on the surface ofsuperfine silver powder through an in-situ chemical vapor deposition method to serve as the conductive dopant, and with polyamide as the raw material, the polyamide conductive fiber is prepared through electrostatic spinning; the graphene is a single-atom-layer two-dimensional crystal material formed by connecting carbon atoms through sp2 hybridization, and due to the special structure, the graphene has high conductivity which other materials cannot have; the prepared conductive dopant is doped into the polyamide, and the polyamide conductive fiber is prepared through electrostatic spinning;when the content of the conductive dopant in the fiber reaches a certain value (percolation threshold), a three-dimensional mesh-shaped structure starts to be formed, a conductive channel is formed, and the percolation phenomenon happens; at the moment, the fiber resistivity is suddenly reduced, and therefore a polymer becomes a semiconductor or a conductor.

The invention discloses a low-peroxide-value and high-fat fish ball added with a seaweed concentrate and a preparation method of the fish ball. The fish ball mainly consists of the following components in parts by weight: 50-100 parts of frozen minced fillet, 5-10 parts of a seaweed concentrate, 15-30 parts of grease, 10-20 parts of water, 0.03-0.5 part of composite phosphate, 0.5-1.5 parts of table salt, 0.1-0.3 part of seasoning and the balance of accessories. The low-peroxide-value and high-fat fish ball added with the seaweed concentrate, which is disclosed by the invention, is low in peroxide value, long in shelf life and rich in nutrition; by introducing the seaweed concentrate which is combined with the fish ball in the preparation process of the high-fat fish ball, fat oxidation is controlled and subsequent quality issue of the high-fat fish ball caused by the fat oxidation is solved, so as to add flavor of the high-fat fish ball, enrich taste and improve the quality of the finished product; and meanwhile, the comprehensive utilization of the seaweed is promoted as well.

The invention relates to the technical field of titanium alloy seamless tubes and discloses a production process of a hot-rolled large-caliber thin-wall titanium alloy seamless tube. The technologicaloperation process of the production process mainly comprises the following steps of A, an operator removes impurities in a titanium alloy material through a clogging screen; B, manufacturing the impurity removed titanium alloy material into a titanium alloy blank; C, pouring the titanium alloy blank into a seamless tube mold; D, just placing the titanium alloy seamless tube mold into an annular furnace to be heated; E, grabbing the heated titanium alloy blank seamless tube into a cooling device through a conveying device; F, conducting demolding after titanium alloy ingredients are subjectedto heating and cooling to generate a solid titanium alloy cylinder; and G, conducting fixing on the solid titanium alloy cylinder through a machining lathe. Through the production process of the hot-rolled large-caliber thin-wall titanium alloy seamless tube, the problems that titanium has a reaction with carbon, hydrogen, nitrogen and oxygen at high temperature, the organization structure of thetitanium is changed, the physical and chemical characteristics of the titanium are affected and the using requirements can be hardly met are solved.

A conductivity measurement method for measuring the conductivity of a fluid in a washing chamber in an electrical washing machine using a water quality sensor consisting of a control unit and first and second conductors by alternatively changing the electric potential of the first and second conductors and repeatedly measuring the conductivity of the fluid in the washing chamber between the first and second conductors upon each electric potential alternation.

The invention belongs to the technical field of meat product processing, and particularly discloses a method for removing peculiar smell of raw meat. The zinc lactate and the tea leaf extract are mixed according to the proportion of (2-4): 1, the addition amount of the zinc lactate is controlled to be 85-110 mg/kg, the zinc lactate is added into the raw material meat in two times for reaction, lipid oxidation is effectively inhibited through the combined action of the zinc lactate and the tea leaf extract, meanwhile, the use amount of the tea leaf extract is also reduced, and the peculiar smell can be effectively removed for a long time. According to the invention, a layer of sodium alginate aqueous solution is sprayed on the surface of the raw meat treated by the zinc lactate and the tea leaf extract, and the sprayed sodium alginate quickly forms a film, coats the surface of the raw meat and can cover fine holes formed in the frozen storage process of the meat, so that the contact between fat and oxygen is isolated, the oxidation of lipid is further inhibited, the lipid oxidation degree of the raw material meat is obviously slowed along with the prolonging of the freezing storage time, and the peculiar smell can be effectively removed for a long time.

The invention provides an ozone-resistant and anti-aging modified natural rubber material. The ozone-resistant and anti-aging modified natural rubber material is prepared from the following raw materials in parts by weight: 60 to 70 parts of natural rubber, 30 to 40 parts of modified butadiene rubber, 40 to 50 parts of carbon black, 2 to 2.5 parts of a vulcanizing agent, 8 to 10 parts of a softening agent, 2 to 2.5 parts of an accelerator, 3 to 3.5 parts of a common anti-aging agent, 2 to 2.5 parts of a novel anti-aging agent, 2 to 2.5 parts of an ozone-resistant protective wax, 4 to 5 parts of a dispersant and 3 to 5 parts of zinc oxide. The preparation method provided by the invention is simple and has extensively-available raw materials; and the rubber material prepared by using the preparation method provided by the invention has the advantages of good performances like aging resistance, elasticity, ultraviolet resistance, ozone resistance, oxidation resistance, wear resistance andfatigue resistance, excellent mechanical properties and broad application prospect.

The invention relates to a removal method for a photoetching coating on a carbon-containing porous material substrate. In the invention, organic solvent removal and low-temperature oxidizing removal are combined, wherein the photoetching coating, which is easy to dissolve in the organic solvent, on the surface and in deep pores of the substrate is removed firstly by an organic solvent, and then the residual photoetching coating in the deep pores is removed through the low-temperature oxidizing process. The method effectively overcomes the defects of incomplete removal with the organic solvent and low removal speed and low capability of the low-temperature oxidizing process, increases removal capability on the photoetching coating, can completely remove the photoetching coating, and ensures structural performance and electrical performance of porous structures in the carbon-containing porous material substrate, thereby providing convenience for subsequent processes.

The invention discloses a method and system for reducing the oxidation speed of the electrode of a flow battery and belongs to the field of flow batteries and aims to solve the problem of the oxidation of the electrode of the flow battery. The method is characterized in that the method comprises a step of adding an organic reducing agent into a positive electrolyte solution. With the method and system of the invention adopted, the oxidation speed of a positive carbon felt electrode can be reduced.

The invention provides a method for reducing the oxidation speed of a metal product. The method comprises the following steps of: constructing an electrolytic cell by taking a metal sample to be treated as an anode and taking an aqueous solution containing weak acid as an electrolyte; after electrifying for a period of time, powering off and taking out the sample; and (3) cleaning and drying the sample to obtain the metal product. According to the method, the oxidation speed of the metal product can be reduced through quite simple operation, and the surface property of the metal product can bemaintained.

The invention provides a crystalline silicon solar cell diffusion dead layer removing method. The method includes the steps of oxidizing a dead layer through a NaClO water solution or a NaBrO4 water solution or an H2O2 alkali solution for a crystal silicon wafer where phosphorosilicate glass is removed, and removing a surface oxidized layer through an HF water solution. By means of the crystalline silicon solar cell diffusion dead layer removing method, it can be ensured that the dead layer can be thoroughly removed, the junction depth is more uniform, and the open-circuit voltage and short-circuit current are increased.