1217 results about "Thiocyanic acid" patented technology

The room temperature ionic liquid containing unsaturated double bond has the general expressino of A+B-, where A+ contains R1 being hydroxyl with 1-4 carbon atoms and R2 containing 2-20 carbon atoms and at least one double bond; and B- is one of anions, including chlorate radical, bromate radical, iodate radical, acetate radical, sulfate radical, nitrate radical, tetrafluorobromate radical, etc. Its preparation is to mixture and react olefin halide R1X and N-alkyl imidazole to obtain ionic liquid dialkyl imidazolium halide. The present invention also relates to the application of the ionic liquid in dissolving cellulose and preparing cellulose derivative.

The present invention relates to a method capable of using natural and artificial synthetic isosulfocyanate compound or its derivative to prevent and cure prostatic diseases and skin carcinoma. The internal tests show that various isosulfocyanate compounds or their derivatives can induce prostatic cell II phase drug metabolic detoxication enzyme-glutathione transferase so as to can inhibit the hyperplasia of prostate and inflammation, and can prevent and cure prostatic carcinoma and skin carcinoma.

The present invention provides a substrate of TGase represented by (fluorescent group)-(linker)-(a portion containing a Gln residue capable of recognition by transglutaminase (TGase))-R, wherein the fluorescent group is fluorescein isothiocyanate (FITC), Texas Red (TE) or dansyl (Dns) or a group derived therefrom; the linker is a group represented by —NH—(CH2)n—CO— (n is an integer of 1 to 6); the portion containing a Gln residue capable of recognition by TGase is a group derived from a peptide selected from among QG and the like; and R is a hydroxyl group, or biotin, nucleic acid, azide, alkyne, maleimide or cyclopentadiene, or a group derived therefrom.

An electric power generating unit comprising (i) an ammonia storage device in the form of a container comprising an ammonia absorbing and releasing salt of the general formula: Ma(NH3)nXz, wherein M is one or more cations selected from alkali metals, alkaline earth metals, and transition metals such as Li, K, Mg, Ca, V, Cr, Mn, Fe, Co, Ni, Cu or Zn, X is one or more anions selected from fluoride, chloride, bromide, iodide, nitrate, thiocyanate, sulphate, molybdate, phosphate, and chlorate ions, a is the number of cations per salt molecule, Z is the number of anions per salt molecule, and n is the coordination number of 2 to 12. (ii) means for heating said container and ammonia absorbing and releasing salt for releasing ammonia gas and (iiia) a fuel cell for converting ammonia directly into electric power; or (iiib1) a reactor for dissociating ammonia into hydrogen and nitrogen and (iiib2) a fuel cell for converting hydrogen into electric power is useful for large stationary energy producing facilities, but also for use for is useful for large stationary energy producing facilities, but also for use for small rechargeable and / or replaceable power supply units for micro-fabricated or miniaturized ammonia decomposition reactors for use in mobile units and portable devices may be used for large energy producing facilities, and by use of small rechargeable and / or replaceable ammonia storage decomposition reactors, it is also possible to provide energy for mobile units and portable devices.

The invention discloses a wide-spectrum plant cold-resisting agent for plants such as food crops, economic crops, vegetables, fruit trees, economic trees, flowers, and lawns. The active component of the agent is chitosanoligosaccharide or a derivative thereof. The chitosanoligosaccharide is oligosaccharide of glucosamine linked through beta-1,4-glucosidic bond, and has a molecular weight of 300-10000Da, and a deacetylation degree of 50-100%. The chitosanoligosaccharide derivatives are chitosanoligosaccharide sulfuric acid derivative, chitosanoligosaccharide hydrochloric acid derivative, chitosanoligosaccharide phosphoric acid derivative, chitosanoligosaccharide sulfonamide derivative, chitosanoligosaccharide acyl isothiocyanate derivative, chitosanoligosaccharide phosphoric derivative, chitosanoligosaccharide guanidine derivative, chitosanoligosaccharide nicotinicacyl isothiocyanate derivative, chitosanoligosaccharide-cerium (IV) complex, and the like.

The invention relates to a method for extracting aurum from difficult-to-handle sulphide ore aurum concentrate by two-segment pressurization leaching method comprising two segments of pressurization oxidation preprocessing and pressurization oxidation aurum leaching. The method comprises the steps of: firstly, pressurizing and oxidizing base metal sulfide such as iron sulfide with sulfuric acid-iron sulfate, wherein most S2- and S22- are oxidized into elemental sulfur; and secondly, pressurizing and leaching the preprocessed slag with thiocyanate so that aurum is selectively dissolved in the solution in the form of aurum-thiocyanic acid compound. Therefore, the pre-oxidation slag can be directly leached without neutralization, the technical process is short, the aurum recovery rate is high, the cost is low and pollution of low-concentration SO2 smoke gas, As2O3 smoke dust, and the like is avoided.

The invention provides an early-strength water reducer for recycled aggregate concrete, which is suitable for the field of building materials. The the early-strength water reducer comprises the following raw materials by weight percent: 20-25% of a polycarboxylic acid water reducer, 1-6% of tri-isopropanolamine, 0.5-2% of triethanolamine, 5-15% of sodium sulfocyanate, 3-10% of calcium formate, and 42-70.5% of water. The early-strength water reducer provided by the invention is low in dosage, good in early-strength effect, free from chloride ions, resistant to the corrosion of steel bars, suitable for recycled concrete, and capable of enhancing the early strength of a recycled concrete product and improving the peaceability of a recycled concrete mixture.

The invention relates to a method for treating industrial wastewater and application of the method, belonging to the field of wastewater treatment. The method for treating wastewater comprises the steps: conducting yeast treatment, catalysis microelectrolysis, two-phase anaerobic treatment, CASS (Cyclic Activated Sludge System) method treatment, advanced oxidization and biological aerated filter to industrial wastewater. In the method for treating wastewater, the treatment units are reasonably combined, COD and ammonia nitrogen removal efficiency is high, and the wastewater treated by using the method can meet the demand of up-to-standard emission or backwater recycling. The method for treating the wastewater is low in running cost, very applicable to treatment of antibiotic industrial wastewater, especially to treatment of erythromycin thiocyanate wastewater, thus the method has wide industrial application prospects.

The invention relates to metal oxide semiconductor 2 (MoS2), in particular to a graphene / MoS2 nano self-lubricating composite material and a preparation method thereof. The composite material is prepared through the following steps that: graphene oxide nanosheets are placed into mixed solution which is formed by molybdate, sodium thiocyanate, sodium chloride and deionized water to obtain mixed solution 1, the pH value of the mixed solution 1 is adjusted through hydrogen chloride (HCl) and sodium hydroxide (NaOH) to 1 to 6, the mixed solution 1 is transferred to a hydrothermal reactor which is lined with polytetrafluoroethylene after being ultrasonically treated and uniformly mixed, the mixed solution 1 has hydrothermal reaction under 180 to 200 DEG C after the reactor is well sealed, products are centrifuged and collected after 24 to 48 hours, the products are washed by the deionized water and the absolute ethyl alcohol, and the dried products are heat treated for 2 hours under 800 to 900 DEG C under the protection of the nitrogen (N2) / hydrogen (H2) atmosphere to obtain the graphene / MoS2 nano self-lubricating composite material.

The present invention discloses a cadmium chelate monoclonal antibody and a preparation method as well as application of the monoclonal antibody. The monoclonal antibody is of specificity to cadmium -1 - (4 - isothiocyanate-benzyl) - EDTA - bovine serum albumin and the cadmium metal chelate. The preparation method of the cadmium chelate monoclonal antibody is as following: first of all, hapten is prepared and cadmium chelate complete antigen is formed; spleen cells of mouse which are Cd-ITCBE-KLH-immune are combined with SP2 / 0, and the positive clones are screened through a two-step method; after a plurality of times of subcloning, monoclonal antibody that can stably excrete anti-cadmium chelate is obtained. The cadmium chelate monoclonal antibody is used to measure the concentration of cadmium ion through the linear equation: Y = 0.0081X +0.1115, R 2 = 0.9922. The measurement is fast and the cost is low; the measurement result is accurate and is of high sensitivity and strong selectivity; the equipment is simple and can be easily carried for on-spot testing.

The invention discloses a deplating liquid for a NiCuNi plating on the surface of sintered NdFeB and a deplating process thereof. The deplating liquid for the NiCuNi plating on the surface of sintered NdFeB adopts deionized water or clean tap water as the liquid solvent, and all components and component contents are as follows: 60-90g / L reserve salt S, 120-150ml / L ethylene diamine, 20-40g / L anti-corrosion complexing agent and 50-100ml / L mineral acid. The solute further comprises a surface active agent of 0.5-1g / L. The anti-corrosion complexing agent is sodium citrate or triammonium citrate; the mineral acid is nitric acid or ammonium nitrate; and the surface active agent is potassium thiocyanate, or sodium sulfocyanate or ammonium thiocyanate. The deplating process comprises the following steps: preparing a deplating bath; disposing a deplating liquid; executing the deplating; and removing the deplating liquid on a product. The deplating liquid has the advantages of stable property, good deplating effect and low cost; and the deplating operation is simple and convenient, pollution is prevented, body harm of operators is relieved, waste is changed into valuable and the benefits are remarkable.

At least one of the following compounds is applied as a re-wet solution to media: potassium iodide, sodium iodide, sodium thiosulfate, potassium thiosulfate, and sodium thiocyanate. The addition of at least one of these compounds to the re-wet solution can improve light fastness on the order of eight to thirteen times or more on porous glossy media. These additives are particularly effective with water-soluble dyes, including dyes such as Reactive Black 31 (Pacified) (RB31), Direct Blue 199 (DB199), Magenta 377 (M377), and Direct Yellow 132 (DY132).

The present invention provides compositions and formulations comprising glutathione with or without thiocyanate and methods of use thereof to treat diseases and disorders in mucosal / epithelial tissue.

This invention discloses a metal cleaning agent with high effect and multi-functions, which uses phosphoric acid and zinc oxide as A material, water, tripoly phosphate, thiourea, and uses tartaric acid, C6H12N4, butanone, thiocyanic acid natrium, triethanolamine, fluorin sodium metasilicate, hydrofluoric acid, lemon acid, nitrous acid natrium, op-10, JFC and alcohol as B material, the main character is that after A material is mixed by a certain weight ratio, it combines B material with a certain weight ratio. This invention combines oil removing, dirty removing, rust preventing, deactivation, inhibiting, phosphate 8 in 1 functions together, which has well cleaning effect, and the work surface quality is high, the dealing technology is simple, the cost is lower.

The invention discloses a terpyridyl ruthenium coordination compound, and a preparation method and application thereof. The terpyridyl ruthenium coordination compound enables thiocyanic acid to serve as a strong electron donor ligand, enables carboxyl pyridine to serve as a ligand containing adsorption groups and enables terpyridyl derivatives to serve as auxiliary ligands. The coordination compound serves as photosensitive dye to be applied to a dye sensitization solar battery. The terpyridyl ruthenium coordination compound achieves the aims of optimizing dye structure and improving performances only by simple substituent group modification. The coordination compound has the advantages of three-tooth chelation, rigid plane and stability in the aspects of performances, a metal coordination compound of terpyridyl has good optical and electric chemical physical properties and is synthesized and modified easily in the aspects of preparation processes. The synthesized terpyridyl ruthenium coordination compound has the advantages of being low in preparation cost, easy to purify and high in efficiency.

The invention discloses one quartz solid electrolyte and its process method, wherein, the electrolyte comprises ion liquid, inorganic layer materials, single iodide, light anode match agent and isothiocyanic acid through direct mixture method or organic solvent agent mixture evaporation, wherein, the ion liquid is of solvent agent and other element mole concentration as inorganic layer materials for 0.001-10mol / L; single mass iodide for 0.01-1mol / L; iodide; light anode match agent for 0.01-1mol / L; isothiocyanic acid for 0.01-1mol / L.

The invention relates to a chemical for cleaning a boiler, a using method and a cleaning device thereof, and belongs to the technical field of the chemical cleaning of equipment. A corrosion-inhibiting acid-washing agent comprises acid liquor, 1,3,5,7-tetraaza-adamantane, hydrazine hydrate, silicic acid, cetyl dimethyl benzyl ammonium chloride, ammonium thiocyanate and the like; a bleaching agent is citric acid solution; and a passivant consists of hydrogen peroxide and other additives. The cleaning device consists of a cleaning circulating pump, a cleaning fluid processing tank, a water injection pump and a water replenishing tank; and a plurality of ultrasonic energy converters are arranged on the outer surface of the cleaning fluid processing tank uniformly. The using method comprises the following steps of: establishing a cleaning pump station, testing under the pressure, cleaning scale deposits, bleaching the boiler and a system, passivating and performing water washing. The chemical has a simple process, is low in cost, energy-saving and environment-friendly, and avoids sour corrosion to the boiler.

Disclosed is a sustained-release preparation or capsule of isothiocyanate compounds or derivatives thereof, the sustained-release preparation containing (a) a therapeutically effective amount of isothiocyanate compounds or derivatives thereof; (b) a pharmaceutically acceptable carrier, and the capsule containing a capsule shell and a pharmaceutical composition consisting of components (a) and (b) inside the capsule shell. The sustained-release preparation is stable and has a good compatibility and sustained-release effect; the capsule significantly improves the stability of the drug, and masks the smell of the isothiocyanate compounds and reduces irritation.

The invention discloses an excrement preserving fluid and applications thereof. Ethanol is taken as a fixing agent, sodium citrate is taken as an auxiliary fixing agent, EDTA-disodium is taken as an anti-coagulant, Tris-HCl is taken as a buffer solution, NaCl is taken as an ion strength maintaining agent, and the preserving fluid also comprises lauryl sodium sulfate. Through a reasonable formula,the number, composition, and abundance of microbes in an excrement sample are stabilized; the accuracy of sequencing analysis on human intestinal flora is guaranteed; the preserving fluid can preservean excrement sample at a room temperature; compared with a conventional preserving fluid, the preserving effect is better, moreover, provided preserving fluid does not contain any toxic component such as guanidinium thiocyanate, and the operation is safer.

The present invention discloses a microcapsule mustard essence which consists of wall materials and core materials; the wall materials are prepared by using the following components in parts by weight: starch sodium octenylsuccinate 5.0-25 parts, soybean protein isolate 1.0-5.0 parts, sodium caseinate 0.1-3.0 parts, maltodextrin 20-60 parts and thickening agents 0.2-6.5 parts; and the core materials comprise the following raw materials in parts by weight: natural mustard oil 1.0-20 parts and / or allyl isothiocyanate 1.0-20 parts, and fragrance enhancing and coordinating agents 0.4-1.5 parts. The microcapsule mustard essences have high embedding rate and good heat resistance, can improve the stability of the mustard oil, overcome the shortcomings of highly volatility and strong irritation of liquid essences used in the past, and not easily being preserved in products, and better exert the fragrance of the mustard oil; and at the same time, the wall materials of the microcapsule mustard essences are widely accessible, have low production cost, and can be widely promoted and applied.

The invention relates to a preparation method of a fluorescent molecular probe for detecting fluoride ions in aqueous solutions through fluorescence enhancement and an application of the fluorescent molecular probe to detecting fluoride ions. The fluorescent molecular probe is prepared by protecting 1,4-diethyl-1,2,3,4-tetrahydro-7-hydroxyquinoxaline-6-aldehyde taken as a raw material with silane and then condensing the raw material and malononitrile. The fluorescent molecular probe is simple and convenient to synthesize, and reaction conditions are mild. The fluorescent molecular probe has the specific characteristics that the probe molecule has stable optical properties and higher synthetic yield; the probe molecule has high sensitivity of detection of fluoride ions in the aqueous solutions and low lower limit of detection, and the limit of detection is 5.4mu M; the response range is 0-1mM and the detection range is wide; the probe molecule has good selectivity and has no responses to anions, such as chloride ions, bromide ions, iodide ions, tetrabutylammonium cyanide, nitrates radicals, hydrosulfate radicals, perchlorate radicals, acetate radicals, thiocyanate radicals, azide radicals, cysteine, bovine serum albumin, carbonate radicals, sulfate radicals and reduced glutathione; the fluorescent molecular probe has practical application values in the fields of biochemistry, environmental sciences and the like.

The invention relates to sizing material used for the acrylic acid ester rubber with high performance requirement. The acrylic acid ester rubber of active chlorine introduced from epoxy gene is chosen, and trimerization thiocyanic acid TCY is adopted as a vulcanizing system; the invention comprises concrete ingredients as follows: 100 parts of AR5160, 60-90 parts of carbon black N330, 1.0-2.0 parts of stearic acid, 8-14 parts of plasticizer, 2.0-2.5 parts of WB-212, 0.1-0.3 part of anti-scorching agent E / C, 2.0-3.0 parts of antioxidant, 1.0-1.5 parts of curing agent TYC, and 1.5-2.5 parts of accelerator BZ; glass with Mooney viscosity of ML1+4 50 is adopted to be vulcanized and transformed into -25 DEG C acrylic acid ester rubber for matching, so as to ensure that the brittleness intensity reaches above -45 DEG C. The sizing material of the acrylic acid ester rubber with high performance requirement is obtained. The sizing material has the advantages that the comprehensive physical property is good, and simultaneously the brittleness temperature is lower. The invention meets the requirement of the vehicle industry to the sealing material, and the technical level achieves the domestic advanced level. The invention is suitable for the ranges of vehicle engine, crank oil seal, gear shifting box oil seal, and heat resistant, oil proof and cold resistant rubber hose, and protecting sleeve, etc.

The invention provides a clenbuterol (CLB) magnetic particle separation enzyme-linked immunosorbent assay (ELISA) method, belonging to the technical field of food safety immunodetection. The method comprises the following steps: the immunodetection principle of the competition method is adopted to connect CLB with bio-enzyme and prepare an enzyme labeled antigen reagent, antibody against fluorescein isothiocyanate (FITC) is absorbed on the surface of magnetic particles to prepare a magnetic separation reagent, FITC is connected with the antibody against CLB to prepare an antibody reagent; CLB in a sample and enzyme-labeled CLB compete to combine with a small quantity of FITC-labeled antibody against CLB and form an antigen-antibody composite; after the magnetic separation reagent is added, the antibody against FITC connected with the surface of magnetic particles captures the composite on the surface of magnetic particles; and washing, and finally adding substrate to detect. The invention has the following advantages: (1) magnetic particles replace the traditional ELISA plate to be used as solid carrier and ensure that the immunoreaction is performed more fully and fast under the near-liquidus condition; compared with the traditional ELISA method, the method is characterized by high specificity and good repeatability; and (2) the one-step competition method principle is adopted, thus the detection time is short.

The invention discloses a comprehensive treatment method of a high-concentration cyanogens-containing and thiocyanate-containing waste liquid. The method comprises the following steps of: (1) regulating the pH value of a decarbolizing waste liquid to be between 5 and 10; (2) adding the decarbolizing waste liquid and oxydol accounting for 40-50 percent of the total weight of the oxydol to be added into a reactor in the reactor at the same time, raising the temperature to react for 0.5-1h at 150-180 DEG C, continuously adding the remained oxydol accounting for 60-50 percent of the total weight of the oxydol into the reactor between 0.5h and 1.5h to fully react under stirring, wherein the molar ratio of [H202]:[SCN-] added in the reactor is 2.5-4; and (3) cooling materials to the room temperature and discharging. In the method, CN- and SCN- are treated in one operation unit at the same time, and the synergy of two methods of oxydol oxidation and high-temperature hydrolysis is utilized, thereby the usage of Fe salt catalyst is saved, and the reaction temperature in the high-temperature hydrolysis step is lowered at the same time.

The invention provides an optical resin monomer with high refractive index. The monomer has the structural formula shown in the specification, wherein in the structural formula, R is hydrogen, alkyl, alcoxyl, halogen and aryl; Ph is a benzene ring; m and n are integers; m is not less than 1 and not more than 6; and n ranges from 0 to (6-m). A preparation method comprises the following steps: taking the following raw materials: aromatic hydrocarbon, NBS (N-bromosuccinimide), BPO (benzoyl peroxide), thiourea, sodium hydroxide, hydrochloric acid, epichlorohydrin and potassium thiocyanate, wherein the mole ratio of aromatic hydrocarbon to NBS to thiourea to sodium hydroxide to hydrochloric acid to epichlorohydrin to potassium thiocyanate is 1:(3-5):0.1:(3-5):(9-12):(6-10):(3-5):(10-15); step 1. carrying out halogenation; step 2. carrying out halogen methylated thiolation: adopting a thiourea hydrocarbylation hydrolysis method or thiocyanate direct substitution method; 3. carrying out epoxidation: using a universal epichlorohydrin preparation method; and 4. preparing cyclic sulfide products: adopting a universal cyclic sulfide preparation method.

The invention provides a method for treating ammonia desulfurization waste liquid by an oxidation method, and belongs to the technical field of desulfurization waste liquid treatment. According to the method, oxidation reaction is conducted by blowing air or oxygen into the ammonia desulfurization waste liquid; ammonium thiosulfate in the desulfurization waste liquid is oxidized into ammonium sulfate in the oxidation reaction process; ammonium thiocyanate is not oxidized, but continues to be reserved in the desulfurization waste liquid; and then ammonium thiocyanate is extracted through evaporation and secondary crystallization. The method is suitable for treating desulfurization waste liquid generated in a gas desulfurization and decyanation technological process by a catalytic oxidation method, and suitable for waste liquid treatment in the desulfurization technology field of hydrogen sulfide such as coke oven gas, natural gas, coalbed methane and refinery gas. With the adoption of the method, ammonium thiosulfate salt in the waste liquid can be converted to ammonium sulfate salt, ammonium thiocyanate salt can be protected, and ammonium sulfate salt and ammonium thiocyanate salt can be separated and purified from the waste liquid into a product.

The invention discloses a preparation method of neopentyl glycol dimethacrylate. The preparation method comprises the following steps: reacting methyl methacrylate and neopentyl glycol used as raw materials by adopting a reaction rectification ester exchange technology in the presence of a catalyst and a polymerization inhibitor so as to obtain a reaction product containing neopentyl glycol dimethacrylate; distilling the reaction product under the condition of reduced pressure to remove excess methyl methacrylate, and then remove the catalyst and the polymerization inhibitor, thus obtaining the neopentyl glycol dimethacrylate product. The preparation method has the advantages that the carbonate and thiocyanate compound catalyst is adopted, can be recycled and has a good catalytic effect, the reaction time is shortened, the reaction efficiency is improved, and the production amount of polymers is reduced; the nitroxide free radical polymerization inhibitor is adopted, the using amount of the polymerization inhibitor is reduced, and the polymerization inhibition effect is improved.

Chemical compositions having superior nematicidal properties are formulated. The compositions contain one or more selected aldehydes as the major component and one or more aliphatic or cyclic isothiocyanates as a minor component. Preferred mixtures contain furfural and one or both of methyl isothiocyanate and allyl isothiocyanate. Plant-parasitic nematodes are controlled by contacting the nematodes with the nematicidal compositions, by, for example, applying the compositions to soil or other plant growth media containing the nematodes.

An improved method of preserving a molecule in a bodily fluid comprises: (1) providing a preservative solution comprising: (a) an amount of a divalent metal chelator selected from the group consisting of ethylenediaminetetraacetic acid (EDTA), (ethylenebis(oxyethylenenitrilo))tetraacetic acid (EGTA), and 1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid (BAPTA) and salts thereof in the range of from about 0.001 M to about 2 M; and (b) an amount of at least one chelator enhancing component selected from the group consisting of lithium chloride, guanidinium chloride, guanidinium thiocyanate, sodium salicylate, sodium perchlorate, and sodium thiocyanate in the range of from about 0.1 M to about 10 M; and (2) adding the preservative solution to the bodily fluid, thus preserving the molecule. The molecule can be a protein or a small molecule, such as a steroid. The invention also encompasses preservative compositions suitable for preserving proteins or small molecules, and kits. Preservative compositions can further include at least one enzyme inactivating component selected from the group consisting of manganese chloride, sarkosyl, and sodium dodecyl sulfate in the range of up to about 5% molar concentration. Compositions and methods according to the present invention have many diagnostic and forensic uses, in addition to being suitable for preparing compositions usable by hunters for attracting animals.