10 results about "Inorganic sulfide" patented technology

The invention discloses sewage energy-saving treatment equipment for oil-based needle coke production, and belongs to the technical field of oil-based needle coke production. The device comprises a box body, a plurality of fixing pipes are symmetrically and fixedly connected to the side wall of the box body in a penetrating mode, a plurality of box covers are clamped to the upper side of the box body, a plurality of ultraviolet irradiation lamps are fixedly connected in the box body, two baffles are symmetrically and fixedly connected in the box body, and an air flotation machine is fixedly connected to the bottom in the box body. A slag scraping assembly is installed in the box body and comprises a slag scraping plate. In the sewage treatment process, under the action of the ultraviolet irradiation lamp and the catalyst, organic sulfide in sewage can be converted into inorganic sulfide, then under the action of the slag scraping plate, impurities floating on the water surface can be scraped between the baffle and the box body, the simple impurity removal effect is achieved, the structure is simple, and the operation is convenient. The practical effect is good.

The invention provides a soil reducing inorganic sulfide continuous extraction device and a use method thereof. The extraction device comprises a brown reaction bottle, a first sealing bottle plug is arranged at a bottle opening of the brown reaction bottle, and a gas replacement needle, a sample injection needle and a liquid replacement needle are arranged on the first sealing bottle plug; the reagent deoxidizing bottle is connected with the sample injection needle through a first liquid flow divider and a first multi-channel injection pump; a second sealing bottle plug is arranged at a bottle opening of the reagent deoxidizing bottle, a first needle tube, a second needle tube and a third needle tube are respectively arranged on the second sealing bottle plug, a needle seat of the second needle tube is connected with a second two-way valve, the second two-way valve is connected with a first liquid diverter, the first liquid diverter is connected with a first multi-channel injection pump, and the second liquid diverter is connected with a second multi-channel injection pump. A channel of the first multi-channel injection pump is connected with an eighth two-way valve on the sample injection needle seat; and the absorption liquid deoxidizing bottle is connected with the liquid changing needle through a second liquid diverter and a second multi-channel injection pump. The detection efficiency and stability of the soil reducing inorganic sulfide are improved.

The invention provides application of water-soluble inorganic sulfide in improvement of plant salt stress resistance and / or improvement of saline-alkali soil, relates to the technical field of agriculture, and provides application of water-soluble inorganic sulfide in improvement of plant salt stress resistance and / or improvement of saline-alkali soil. The water-soluble inorganic sulfide is selected from at least one of potassium sulfide, ammonium sulfide and calcium polysulfide, the potassium sulfide, the ammonium sulfide and the calcium polysulfide can effectively improve the germination ability of plant seeds under salt stress, and the calcium polysulfide can effectively improve the plant antioxidant system activity and the plant photosynthesis efficiency; the survival rate and the growth performance of the plants under salt stress are effectively improved; the water-soluble inorganic sulfide solution can effectively reduce the EC value of the saline-alkali soil, so that the germination rate of plant seeds in the saline-alkali soil is effectively increased, and the saline-alkali soil is effectively improved. Therefore, the application provided by the invention is of great significance in fully utilizing saline-alkali land resources and improving the crop yield.

The invention belongs to the technical field of all-solid-state battery materials, and discloses an inorganic sulfide solid electrolyte with cost advantage and high ionic conductivity as well as a preparation method and application of the inorganic sulfide solid electrolyte. The chemical general formula of the inorganic sulfide solid electrolyte is as follows: aP2S < 5-b > Li2O-cLiCl, wherein a = 0.5, 1.5 < = b < = 2.5, and 0.5 < = c < = 2. The novel high-ionic-conductivity inorganic sulfide solid electrolyte obtained by the invention can maximally realize gt; the ionic conductivity is 1mS. Cm <-1 >, and the existing high ionic conductivity (gt; the Li2S raw material with high cost is used during synthesis of the sulfide electrolyte (1, 1mS. Cm <-1 >), and the cost benefit is very good. According to the novel high-ionic-conductivity inorganic sulfide solid electrolyte, excellent ionic conductivity is reserved, meanwhile, the production cost of the sulfide solid electrolyte is well reduced, and the novel high-ionic-conductivity inorganic sulfide solid electrolyte has a good application prospect.

The invention relates to a method for efficiently and synergistically purifying multiple metals in wet-process phosphoric acid, which comprises the following steps: (1) adding an inorganic sulfide accounting for 0.05-0.40% of the mass of wet-process phosphoric acid slurry into the wet-process phosphoric acid slurry, and reacting for 30-60 minutes at the temperature of 80-85 DEG C and the stirring speed of 100-200 r / min; (2) pumping the reacted slurry into a filter, adding an organic sulfide accounting for 0.05-0.20% of the mass of the wet-process phosphoric acid slurry at the front end of a pump, and reacting for 10-90 seconds under the conditions that the temperature is 70-80 DEG C and the rotating speed of the pump is 900-1500 r / min; and (3) filtering to obtain dilute phosphoric acid, and aging, concentrating and aging the dilute phosphoric acid to obtain the finished product concentrated phosphoric acid. The sulfide and dithiophosphate synergistic process is adopted, the reaction time with organic sulfide is shortened to the second level, the defect that in the prior art, the efficiency of a single cadmium removal agent is low is overcome, multi-metal ions such as arsenic, cadmium and copper are synchronously removed, the removal rate reaches up to 98% or above, and the cadmium removal treatment cost of per ton of phosphoric acid is greatly reduced.

The invention relates to a sulfur-containing wastewater treatment method for efficiently removing sulfides. The method comprises the following steps: (1) treating sulfide-containing wastewater until the pH is alkaline; ozone is introduced into the alkaline sulfur-containing wastewater, and sulfide is oxidized into insoluble elemental sulfur; (2) adding one or two of coagulant polyaluminum chloride or polyferric sulfate, so that the elemental sulfur particles and other suspended impurities are coagulated to form large particle groups; (3) adding a cationic flocculant to flocculate elemental sulfur particles and other suspended impurities in the wastewater; and (4) carrying out solid-liquid separation on the flocculated wastewater through gravity settling, so as to realize desulfurization treatment on the wastewater containing inorganic sulfides such as S. HS and the like. According to the method, the sulfide removal rate is high and can reach 95% or above; the agent addition amount is small, the treatment cost is low, and economic benefits are good; the method is green, low-carbon and less in pesticide residue. The method is suitable for treating industrial wastewater containing S, HS, organic sulfide and the like in various industries such as coal chemical industry and petrochemical industry.

The invention provides a preparation method of gadolinium sulfide (Gd2S3) nano particles with ultra-small and uniform size and application of the gadolinium sulfide (Gd2S3) nano particles in biological imaging, and belongs to the technical field of nano materials. The method comprises the following steps: in a reaction system consisting of a high-boiling-point non-polar solvent such as octadecene and a surfactant such as oleic acid, taking gadolinium oleate as a precursor, taking inorganic salt sodium sulfide which is low in price and easy to obtain as a sulfur source, and reacting at the high temperature of 260-310 DEG C and under the protection of inert gas to generate the Gd2S3 nanocrystal. Inorganic sulfide is creatively used as a sulfur source, and the defects that in the prior art, an organic sulfur source is high in cost and high in toxicity or the morphology is not easy to control are overcome. The method is low in cost and good in repeatability, and accurate control over the size of the nanocrystalline can be achieved by regulating and controlling parameters such as the reaction temperature. The prepared Gd2S3 nano particles are ultra-small in size, have good photothermal conversion performance and nuclear magnetic resonance imaging potential, and have wide application prospects in the aspect of tumor diagnosis and treatment integrated nano preparations.

A power source and hydride reactor is provided comprising a reaction cell comprising a solid reaction mixture which undergoes one or more chemical reactions providing a net positive enthalpy of reaction. Power and chemical plants that can be operated continuously using electrolysis or thermal regeneration reactions involving these solid fuels are also provided herein. The solid fuel reaction mixture may comprise:(a) inorganic halide, inorganic oxide selected from Y2O3, SnO2, As2O3, Bi2O3, FeO, TeO2, P2O5 , and SeO2, inorganic nitrate selected from NaNO3 and LiNO3, metal carbide selected from TiC, and WC, inorganic nitride selected from Mg3N2, AlN, Zn3N2, and Ca3N2, inorganic sulfide selected from Li2S, ZnS, CoS, Sb2S5, MnS, Cu2S, Y2S3, CuS, FeS, Sb2S5, and CS2, inorganic boride selected from CrB2 and TiB2, or combinations thereof;(b) metal hydride or metal hydroxide; and(c) one or more metals.

The invention relates to the technical field of fine chemicals, in particular to a method for preparing urea. According to the method, the cheap and easily available inorganic sulfide is used as the catalyst for the first time, and NH3 and CO2 are converted into urea at relatively low temperature and pressure. Compared with the existing method for synthesizing urea by taking CO2 and NH3 as raw materials, the reaction temperature and the reaction pressure required by the method disclosed by the invention are obviously reduced. In addition, according to the method for preparing urea provided by the invention, ammonium carbamate can be used for replacing NH3 and CO2 as raw materials to react to prepare urea. The method disclosed by the invention has the advantages of low energy consumption and low cost, and has extremely high popularization and application values.

The present invention enables organically modifying a starting particle with a variety of molecular structures, such as AlN, TiN, Si3N4, or SiC, uniformly on the entire surface of the starting particle using a common method to easily provide an organically modified inorganic fine particle with further improved dispersibility in a solvent.The present invention is a method for producing an organically modified inorganic fine particle. The method includes: forming an oxide layer, an oxyhydroxide layer, and / or a hydroxide layer on a surface of at least one or more kinds of starting particle selected from inorganic nitrides, inorganic carbides, inorganic sulfides, and insoluble salts; and organically modifying the starting particle, on which the oxide layer, the oxyhydroxide layer, and / or the hydroxide layer is formed, in a reaction field of a supercritical, subcritical, or gas phase aqueous solvent to obtain an organically modified inorganic fine particle.