59 results about "Sulfur" patented technology

There is disclosed a lubricating oil composition which contains from about 100 to 450 parts per million of molybdenum from a molybdenum compound which is substantially free of active sulfur and about 750 to 5,000 parts per million of a secondary diarylamine. This combination of ingredients provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.

The present invention discloses a sulfur attack resistant steel and its smelting process. Said sulfur attack resistant steel can be used as steal for seamless steel conduit wiring tube, possesses favorable economy and excellent welding performance, can be applied widely for seamless steel conduit wiring tube for oil gas conveying in high acidic oil and gas fields. Said steel has the chemical constituent as follows (based on weight percentage ): C 0.08 -0.14%, Si 0.20 -0.30%, Mn 1.25 -1.45%, Nb 0.03 -0.05, Al 0.02 -0.05,Ti 0.02-0.05, and the rest is Fe and impurities. The present invention possesses the beneficial effects that the matching between the low carbon equivalent weight and the high strength in lateral direction and vertical direction is realized by adding two microalloy elements (Nb and Ti ) and introducing Al, as alloying element, into the sulfur attack resistant steel, and then said sulfur attack resistant steel possesses favorable economy and excellent welding performance, can be applied widely for seamless steel conduit wiring tube for oil gas conveying in high acidic oil and gas fields.

The invention relates to a high-temperature iron-based zeolite molecular sieve honeycomb type denitration catalyst and a preparation method thereof, and belongs to the technical field of atmospheric pollution treatment technologies and environmentally friendly catalyzing materials. The preparation method comprises the following steps: mixing ferrous salts with ferrite; synthesizing a zeolite molecular sieve, natural zeolite molecular sieve powder, attapulgite clay or kaolin, glass fibers, an organic binding agent, wood pulp or sesbania cannabina powder, stearic acid and glycerinum; and carrying out mixing, ageing, extrusion forming, drying and roasting to obtain the iron-based zeolite molecular sieve honeycomb type denitration catalyst. According to the catalyst, the zeolite molecular sieve and natural raw mineral materials which have excellent thermal stability are used as carriers, and the running stability, the sintering resistance and the mechanical strength of the catalyst in a high-temperature environment are improved. The obtained honeycomb type denitration catalyst has good water resistance and sulfur poisoning resistance, and the conversion ratio of oxynitride is greater than 90% under the conditions that the temperature is in the high-temperature range of 400-600 DEG C and the air speed is 10,000 h<-1>.

A polymerizable monomer adopted to a display panel is represented as following chemical formula:

wherein, m≧0; “Z” is selected from oxygen, sulfur, carbonyl, caroboxyl, methyoxy, methylthio, thio, ethenylcarbonyl, carbonylethenyl, difluoromethoxy, difluoro methylthio, ethyl, difluoroethane, 1,2 difluoroethane, vinylene, difluoroethenylene, ethynyl, or single bond. “X₁” and “X₂” are independently selected from oxygen, sulfur, methyoxy, carbonyl, caroboxyl, -carbamoyl, methylthio, ethenylcarbonyl, carbonylethenyl, or single bond. “Sp₁” and “Sp₂” are independently a spacer or single bond. “P₁” and “P₂” are independently a polymerizable group.

The invention provides for the use of sulfur nucleophiles in analyzing methylated DNA and novel sulfur nucleophiles suitable for such us.

The invention provides a method for removing phenol-based substances from water by using an iron-sulfur supported multi-walled carbon nano-tube reinforced persulfate, and relates to a water treatment method. A purpose of the present invention is to solve the technical defects of high cost, poor removal effect and the like of the existing method for removing phenol-based substances from water. The method comprises: 1, mixing a persulfate and pre-treated water; 2, preparing iron-sulfur supported dual-phase composite multi-walled carbon nano-tubes; 3, pouring the iron-sulfur supported dual-phase composite multi-walled carbon nano-tubes; and 4, filtering the treated water so as to complete the method. With the method of the present invention, the removal rate of the phenol-based substances in the water can achieve 87-98%, and the residual phenol-based substance in the water can be removed.

The invention belongs to the chemical technical filed, relating to production formula of an anti-aging rubber belt, which is composed of neoprene adhesive, natural adhesive, sulfur, vulcanizing agent DTDM, zinc oxide, antioxidant 4010Na, antioxidant ODA, stearic acid, paraffin, high wear-resistance carbon black, accelerator DM, accelerator Na-22 and engine oil. The preparation method is that the materials are face smelted in a face smelting machine. Then certain weight of the face smelted rubber compound is put into a vulcanizer to be vulcanized. The product is obtained after the vulcanization. The product has the advantages of low cost, anti-aging, long service life and no blooming on the surface.

The alicyclic compound of the present invention has a five- or more membered ring structure having an epithioethylene linkage and/or an epidithioethylene linkage, and has tow or more sulfur atoms in its molecule. Optical materials produced by curing the alicyclic compound or a composition containing the alicyclic compound by polymerization show high refractive index.

A medicament for enhancing an effect of a cancer therapy based on a mode of action of DNA injury, which comprises as an active ingredient a compound represented by the following general formula (I):

wherein X represents a single bond or a C₁ to C₆ alkylene group which may be substituted; A represents a C₁ to C₆ alkyl group which may be substituted, a C₆ to C₁₀ aryl group which may be substituted, or a 4 to 10-membered monocyclic or bicyclic and unsaturated, partly saturated, or completely saturated heterocyclic group which may be substituted, wherein said heterocyclic group comprises as ring-constituting atoms 1 to 4 hetero atoms selected from the group consisting of nitrogen atom, oxygen atom, and sulfur atom.

Contemplated configurations and methods for elemental sulfur removal from various gases, and especially well acid gases employ a hydrocarbon solvent that dissolves the sulfur to form a rich solvent and that is then regenerated by hydrotreating. Thus, sulfur is removed from the rich solvent as H2S that may then be processed (e.g., in Claus unit or absorption unit) while the regenerated solvent is routed back to the well and associated production pipes.

A NiCuSiFe alloy prepared from Ni and Cu contained waste through resmelting contains Ni (25-60 wt%), Cu (25-60), Si (8-15), impurity (less than or equal to 0.2) and Fe (the rest), and can also be used as additive for smelting refractory steel, high-weatherability steel and other alloy steel. Its advantages are low smelting point, high dispersity and deoxidizing effect in molten steel and low cost.

The invention relates to high-strength high-elongation antibacterial soft graphene rubber latex. An improved formulation is adopted, and the latex is composed of, by weight, 48-192 parts of rubber matrix, 0.5-1.5 parts of sulfur, 0.5-1.5 parts of zinc oxide, 0.5-3.0 parts of titanium dioxide and 2-8 parts of graphene dispersion liquid. By using the latex to produce rubber products, especially at temperature below zero DEG C in winter, or when the latex is used to produce ultrathin rubber products, the latex is high in softness, strength and elongation; rubber products added with graphene are naturally antibacterial and can protect users more effectively.

The invention discloses a method for planting camellia oleifera. The formula of the selenium-enriched nutrient solution and the selenium-enriched medicinal soil can not only make the camellia oleifera seedlings adapt to the selenium-enriched environment, but also grow well. Adding selenium-resistant microorganisms, using selenium-resistant microorganisms to improve the soil environment, so that the camellia oleifera seedlings can better absorb selenium in the soil, and the camellia oleifera seedlings are subjected to seedling hardening treatment, so that they can quickly adapt to the adverse environmental conditions on land after planting, shorten the growth rate of the camellia oleifera seedlings. Seedling time, enhance the resistance to low temperature, strong wind, etc., the environment of the afforestation is conducive to the growth of camellia oleifera, the spraying of fungicides such as 1% Bordeaux mixture, Bordeaux mixture and sulfur manganese zinc can protect the camellia oleifera seedlings from Infested by diseases and insect pests, the camellia oil produced by this method has more comprehensive nutritional components and is rich in selenium elements needed by the human body. Eaten by people of all ages.

The invention provides a preparation method of ZnCdSe/ZnS quantum dots. The method comprises the following steps that 1, a zinc source, a cadmium source, organic acid and/or organic amine and an organic solvent are stirred and heated to be dissolved after shielding gas is introduced to obtain a zinc and cadmium mixed pro-solution; 2, the solution is heated to 200-350 DEG C, and then a selenium source is injected into the solution within 30 s; 3, a sulfur source or sulfur and zinc source mixed solution is added drop by drop; 4, the temperature of 200-350 DEG C is kept constant, then cooling is performed to reach the room temperature, and separation and purification are performed to obtain ZnCdSe/ZnS quantum dots. The preparation method of the ZnCdSe/ZnS quantum dots is safety to implement, simple, controllable, low in cost, and capable of achieving repetition and amplification; the obtained quantum dots are uniform and controllable in size and appearance, the monodipserity is good, the fluorescence quantum yield is high, and the good stability on the high-temperature, washing and water dissolution modification and other conditions is good.

The invention provides the high-strength 23Mn2CrNiMnVERA steel for railway train connection and a preparation method thereof. The 23Mn2CrNiMnVERA steel comprises the following components of carbon, silicon, manganese, vanadium, aluminum, chromium, molybdenum, nickel, cerium, copper, phosphorus, sulfur, Fe and non-removable impurities; the preparation method comprises the steps of molten iron pretreatment, converter smelting, LF refining, VD vacuum refining and continuous casting tapping. The high-strength 23Mn2CrNiMoVREA steel for connection has the advantages of being easy to weld, high in tensile property and high in yield strength at low temperature (-60 DEG C); and the preparation method of the high-strength 23Mn2CrNiMnVERA steel for the railway train connection has the advantages of being easy to control in the process and suitable for popularization.

The invention discloses anti-corrosion and anti-wear high manganese steel and a preparation method thereof. The high manganese steel consists of the following components in percentage by weight: 1.0-1.2% of carbon, 14-15% of manganese, 0.48-0.6% of silicon, 10.5-12.5% of chromium, 0.5-0.6% of molybdenum, 0.3-0.5% of nickel, 0.1-0.3% of aluminum, 0.08-0.12% of copper, 0.01-0.02% of nitrogen, 0.01-0.03% of rare earth element, less than or equal to 0.03% of phosphorus, less than or equal to 0.03% of sulfur and the balance of iron. The preparation method comprises: (1) smelting: adding alloy and metal raw materials including technically pure iron, nitrided ferrovanadium, ferromanganese, technically pure aluminum and the like into an electric furnace, heating to melt all the alloy and metal raw materials, maintaining for 30 minutes at the temperature of 1,730-1,750DEG C, and discharging at the temperature of 1,460-1,500 DEG C; (2) casting; (3) heat treatment after casting; and (4) product acceptance. The anti-corrosion and anti-wear high manganese steel has the advantages of good anti-corrosion property, good anti-wear property, good impact toughness, long service life and short production period.

A hydrodesulfurization device includes a hydro-desulfurizer configured to remove a sulfur component from a raw material; and a heater configured to heat the hydro-desulfurizer; wherein the hydro-desulfurizer includes a plurality of blocks formed by division in a circumferential direction and disposed annularly around an outer periphery of the heater; wherein the hydro-desulfurizer is configured such that the raw material having passed through inside of each of the blocks moves to its adjacent block; and wherein the hydro-desulfurizer is configured such that adjacent blocks are communicated with each other and the raw material flows in the adjacent blocks in opposite directions.

A composite desulfurizing agent for iron and steel is prepared from calcium carbonate (10-45 wt.%), fluorspar (2-10 wt.%), lime (10-45 wt.%), carbon-bearing substance (0-10 wt.%) and assistant through low-temp sintering and mixing. Its advantages are high desulfurizing speed and effect and low cost.

The invention discloses a method for secondarily enriching zinc from low-grade high-oxidization-rate oxygen-sulfur mixed zinc ore. The method comprises the steps of 1, ore grinding; 2, neutral leaching, wherein the leaching final point pH is controlled to be 5.0-5.2, ore pulp obtained after a reaction is delivered for liquid-solid separation, supernate is delivered for zinc precipitation, and baseflow is delivered for acid leaching; 3, acid leaching, wherein the final point pH is controlled to be 0.5-1.0, ore pulp obtained after a reaction is delivered for liquid-solid separation, supernate is returned for neutral leaching, and after filter pressing of base flow is completed, leaching residues are obtained; 4, zinc precipitation, wherein the oxygen-sulfur mixed zinc ore is added, after areaction, ore pulp obtained after zinc precipitation is delivered for liquid-solid separation, so that zinc-rich residues and zinc precipitation post-liquid are obtained, and after acidity adjustmentis completed, the zinc precipitation post-liquid is returned for acid leaching; 5, flotation, wherein the leaching residues obtained in step 3 are delivered to the flotation procedure, and zinc sulfide is recycled; and 6, volatilization, wherein the zinc-rich residues obtained in step 4 are delivered to a reduction volatilization procedure, so that second zinc oxide is obtained. According to the method, two-stage leaching is adopted, so that the leaching rate of the zinc in the oxidized ore is greater than 90%; and secondary zinc precipitation and enrichment is conducted on leachate through the oxygen-sulfur mixed ore, so that the zinc precipitation rate is greater than 99.5%, and the zinc content of the zinc-rich residues is 16-25%.

The invention discloses tire inner liner rubber and a preparation method thereof. The inner tire liner rubber comprises 70-90 parts of brominated butyl rubber, 10-15 parts of natural rubber, 5-10 parts of silane-terminated polyether resin, 50-70 parts of carbon black, 3-6 parts of diatomite, 2-4 parts of calcium oxide, 2-4 parts of zinc borate, 1-3 parts of stearic acid, 3-6 parts of naphthenic oil, 3-6 parts of aromatic hydrocarbon oil, 2-5 parts of anti-aging agent, 1-2 parts of accelerant and 0.2-0.8 part of insoluble sulfur, wherein the main chain of the silane-terminated polyether resin is polypropylene oxide, and dimethoxy methyl silane or trimethoxy silane are used for terminating; the natural rubber is SMR20 or SMR10; the accelerant is accelerant DM or accelerant DPG; the anti-aging agent is anti-aging 4020, anti-aging agent RD or anti-aging agent 3100. The tire inner liner rubber and the preparation method thereof have the advantages that the silane-terminated polyether resin is added into the tire inner liner rubber; by the preparation method, the problem that the carbon black and small materials are uneven in dispersion can be solved, the service life of the tire inner liner rubber is prolonged, and the safety performance of the tire inner liner rubber is increased.

The invention discloses a method for soil remediation. The method for soil remediation comprises the following step of (1) soil filtering, specifically, soil containing garbage is excavated and loosened through an excavator and then is subjected to primary filtering through a filtering net, and after being filtered, the soil is flattened again through the excavator. By carrying out primary filtering on the to-be-remediated soil, most solid substances, particularly metal and plastic products incapable of being naturally decomposed, can be filtered out, and thus the soil keeps clean; remediationis conducted by planting poplars, the effect that plants absorb part of elements in the soil can be effectively promoted, and thus overhigh sulfur and phosphorus elements in the plants are reduced; and meanwhile, grass has strong vitality, grow rapidly and can also be converted into nutrient substances after death.

A chemical looping combustion (CLC) process for sour gas combustion includes a number of reaction zones and is configured to provide in-situ oxygen production and in-situ removal of S02 from a product gas stream by reacting the SO2 with a calcium-based sorbent at a location within one reaction zone. The CLC process is also configured such that the in-situ oxygen production results from the use of a metal oxide oxygen carrier which is purposely located such that it does not directly contact the sour gas, thereby eliminating the generation of undesirable sulfur-based metal oxides.

The invention discloses a high-toughness anti-cracking rubber material for a sealing ring. The high-toughness anti-cracking rubber material for the sealing ring is prepared by using the following raw materials in parts by weight: 100 to 120 parts of ethylene propylene diene monomer rubber, 5 to 10 parts of methyl vinyl silicone rubber, 60 to 80 parts of white carbon black, 2 to 4 parts of zinc oxide, 0.15 to 0.25 part of dibenzoyl peroxide, 1.5 to 2.5 parts of sulfur S80, 1.5 to 2.5 parts of anti-aging agent MB, 0.3 to 0.5 part of accelerator TMTD, 1 to 2 parts of ethyl cellulose, 2 to 4 parts of methyltrimethoxysilane, 0.5 to 1 part of tetrabutyl titanate, 0.15 to 0.25 part of titanate coupling agent NDZ-401, 6 to 8 parts of nano-graphite powder, 4 to 6 parts of castor oil and 0.5 to 1 part of glycidyl methacrylate. The rubber material disclosed by the invention has good wear resistance and long-lasting friction-reducing performance, simultaneously has high toughness and good anti-cracking performance, is long in service life, is good in sealing performance and is suitable for being used as a sealing ring material.

The invention discloses a preparation method of In2O3 hollow nanospheres coated by a nitrogen and sulfur doped carbon layer. The preparation method comprises the following steps: with spherical In(OH)(2,5-PDC) with uniform size and morphology as a precursor, setting proper calcining temperature, calcining time and calcining atmosphere to form indium oxide hollow nanospheres, which are uniform insize and uniformly coated with N and S element doped carbon layers. The N and S elements in the precursor In(OH) (2,5-PDC) hollow sphere are introduced by adding a nitrogen-rich organic ligand (2,5-pyridine dicarboxylic acid) and a nitrogen and sulfur-rich regulator (2,1,3-benzoisothiazole-3-ketone), and the N and S element doped C-coated In2O3 hollow nanosphere is obtained after heat treatment. According to the preparation method disclosed by the invention, the In(OH) (2,5-PDC) hollow sphere with uniform size and morphology is synthesized through a one-step simple solvothermal reaction.