650 results about "Thiocyanate" patented technology

A precursor source mixture useful for CVD or ALD of a film comprising: at least one precursor composed of an element selected from the group consisting of Li, Na, K, Rb, Cs, Fr, Be, Mg, Ti, Zr, Hf, Sc, Y, La, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, B, Al, Ga, In, Tl, Si, Ge, Sn, Pb, As, P, Sb and Bi, to which is bound at least one ligand selected from the group consisting of hydride, alkyl, alkenyl, cycloalkenyl, aryl, alkyne, carbonyl, amido, imido, hydrazido, phosphido, nitrosyl, nitryl, nitrate, nitrile, halide, azide, alkoxy, siloxy, silyl, and halogenated, sulfonated or silyated derivatives thereof, which is dissolved, emulsified or suspended in an inert liquid selected from the group consisting of aliphatic hydrocarbons, aromatic hydrocarbons, alcohols, ethers, aldehydes, ketones, acids, phenols, esters, amines, alkylnitrile, halogenated hydrocarbons, silyated hydrocarbons, thioethers, amines, cyanates, isocyanates, thiocyanates, silicone oils, nitroalkyl, alkylnitrate, and mixtures thereof. The precursor source mixture may be a solution, emulsion or suspension and may consist of a mixture of solid, liquid and gas phases which are distributed throughout the mixture.

A pharmaceutical composition comprising a co-crystal of an API and a co-crystal former; wherein the API has at least one functional group selected from ether, thioether, alcohol, thiol, aldehyde, ketone, thioketone, nitrate ester, phosphate ester, thiophosphate ester, ester, thioester, sulfate ester, carboxylic acid, phosphonic acid, phosphinic acid, sulfonic acid, amide, primary amine, secondary amine, ammonia, tertiary amine, sp2 amine, thiocyanate, cyanamide, oxime, nitrile diazo, organohalide, nitro, s-heterocyclic ring, thiophene, n-heterocyclic ring, pyrrole, o-heterocyclic ring, furan, epoxide, peroxide, hydroxamic acid, imidazole, pyridine and the co-crystal former has at least one functional group selected from amine, amide, pyridine, imidazole, indole, pyrrolidine, carbonyl, carboxyl, hydroxyl, phenol, sulfone, sulfonyl, mercapto and methyl thio, such that the API and co-crystal former are capable of co-crystallizing from a solution phase under crystallization conditions.

The invention relates to poly carboxylic acid system antifreeze applied to cement concrete and a preparation method thereof and belongs to the building material field. The antifreeze is prepared by the optimal combination of an efficient water reduce of poly carboxylic acid, organic alcohol amine, low-carbon alcohol, sulfocyanide and formate. The preferred proportion of the components is that the efficient water reducer to the organic alcohol amine to the low-carbon alcohol to the sulfocyanide to the calcium formate to water is equal to (3.0-8.0) to (0.5-2.0) to (0.0-2.0) to (10.0-20.0) to (0.0-6.0) to (65.0-75.0) (by mass percentage). Compared with the existing antifreeze, the antifreeze of the system has the advantages of high water reducing rate and comparatively good workability and quick growth of strength at negative temperature. The antifreeze has the advantages of low intermingled quantity in the cement concrete, good water solubility, low alkali content, high strength at the early stage and at the later stage of the cement concrete but no chlorine and is applicable to the preparation of various cement concrete at the negative temperature ranging from negative 5 DEG C to negative 20 DEG C in winter in the north area.

The invention discloses a composite metal salt catalyst for a hydrochlorination reaction of acetylene, belonging to the technical field of catalysts. The composite metal salt catalyst takes gold as active metal, and the reduction deactivation of the composite metal salt catalyst is reduced by reducing reduction potential of metal through a complexing action of a thiocyanate radical or a cyanate radical. Carbon deposition in a reaction process is restrained by introducing one or more of potassium, cerium and lanthanum elements. The composite metal salt catalyst is loaded on active carbon or carbon nanometer pipe with the specific surface area of not less than 100m<2>*g<-1>, wherein the mass fraction of a gold load is 0.05-0.50%, the mass fraction of a copper load is 0.1-5.0%, and the mass fraction of the potassium/cerium/lanthanum load is 0.1-5.0%. In a reaction for preparing vinyl chloride, composite salt of gold and copper has excellent activity, selectivity and stability; furthermore, one or two of cerium and lanthanum are added to a catalyst so as to be capable of effectively restraining the carbon deposition and catalyzing a hydrochlorination process of the acetylene in low cost and high efficiency.

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)_nX_z, 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 relates to a method for preparing thiocyanate and sulfate by utilizing desulfuration waste liquor in a coking plant, which comprises the following steps of: preparing saturated solution of copper sulfate, mixing the saturated solution with desulfuration waste liquor, and heating and stirring; performing solid-liquid separation to obtain a solid and sulfate liquid; adding aqueous alkali into the solid, heating at the temperature of between 50 and 98 DEG C, and stirring and reacting for 10 to 120 minutes; performing solid-liquid separation on slurry obtained by heating; concentrating the obtained liquid, and freezing for crystallizing and drying to obtain a high-purity thiocyanate product; calcining the obtained solid, adding solution of sulfuric acid, and stirring to produce the copper sulfate for circular use; adding activated carbon into the sulfate liquid, and aerating and oxidizing to purify sulfate; and concentrating the sulfate, and crystallizing and drying to obtain a high-purity sulfate product. The method solves the problem of pollution of the desulfuration waste liquor to the environment, and simultaneously, pollutants can become value products through the production of the high-purity thiocyanate product and the high-purity sulfate product.

The invention discloses a recycling and harmless treatment method for cyaniding tailing slurry. In the method, the cyaniding tailing slurry containing cyanogen, thiocyanate, heavy metal and arsenic and liquid containing hydrogen peroxide are subjected to direct mixing treatment; the method utilizes high specific surface area of micro-fine granular ore to add the contact opportunity between the thiocyanate and the hydrogen peroxide and the contact area between gas phase and liquid phase through surface adsorption to accelerate a speed of oxidation-reduction reaction and an acidifying and stripping speed, utilizes metallic substances contained in slag to accelerate the reaction rate of the oxidation-reduction reaction without the addition of catalyst, and can reduce cost; meanwhile, in neutralization, Fe3+ in the slag is utilized to meet the requirement of arsenic precipitation without the addition of an arsenic precipitation reagent; when residual cyanides is removed from the hydrogen peroxide liquid, the hydrogen peroxide liquid and cyano complexes which are difficult to remove through the oxidation-reduction reaction form sediment so that the residual thiocyanate is further removed; the method can make the conversion rate of the thiocyanate in the ore slurry more than or equal to 88 percent; and compared with the treatment of filter pressing clear liquid of homogeneous ore slurry, the total reclaiming rate can be increased by over 20 percent.

The present invention uses weak base phenylethylene series trialkylamine type anion-exchange resin as fixed phase and uses hydrochloric acid medium as mobile phone to implement coarse separation of platinum, palladium, iridium and gold from base metal, adopts dilute hydrochrolic acid, water and EDTA to elute base metal, and utilizes sulfocyanate+ascorbic acid solution, hydrochloric acid equilibrated methyl isobutanedione, NH4Cl+NH3.H2O solution and HCl+thiourea+thiourea+methyl alcohol solution to selectively shower-wash iridium, gold, palladium and platinum, and its chromatographic column canbe regenerated by using hydrochloric acid. Its resolution is good, the baseline separation can be obtained, and their recoveries are above 95%.

The invention relates to a processing technique for discharging desulfurization solution of a coke-oven plant HPF desulfurization system, which pertains to the waste fluid process technical field and is used for solving the problems of reducing COD content in the desulfurization solution and recycling a plurality of thiocyanate products. Particularly, the method comprises the procedures that: A. catalytic oxidation-selection of complexing; B. filter pressing or centrifugal separation; C. product generation; D. regeneration of complexing agents. The method of the invention is characterized in that: 1. using SCN<-> in the desulfurization solution produces chemical products such as NaSCN, KSCN, etc.; 2. the processed COD is reduced from 140000mg/L to 15000mg/L; 3. the invention has relatively small technical investment and simple operation; 4. the complexing agents can be recycled, thus having low operating cost and obvious economic benefits. The invention has novel research thought and reasonable technique, and conforms to a concept of circular economy and has quite good economic and social benefits.

The invention discloses a method for recovering thiocyanate from coke oven gas desulfuration and decyanation wastewater. The method comprises the steps of: adding persulfate or sulfuric acid to polyamine salt wastewater for reacting with ammonium thiosulfate so as to generate ammonium sulfate and ammonium sulfite, and further oxidizing into ammonium sulfate and sulfur, thus the wastewater is changed into a two-component mixed liquid which contains ammonium thiocyanate and ammonium sulfate and is easy to separate by crystallization from a three-component mixed liquid, and high-efficiency separation is realized. The purity of the obtained ammonium thiocyanate crystal can reach 99%.

The invention relates to a palladium coordination polymer molecule aggregate catalysis material as well as a preparation method and an application thereof. The catalysis material is a coordination polymer molecule aggregate catalysis material formed by self-assembling on the surface of a solid substrate, the precursor of the catalysis material comprises palladium coordination ion as well as pyridine containing multidentate ligand or high molecular ligand, wherein the palladium coordination ion is selected from one of tetrachloro combined palladium acid radical, dichloro-2, 2'-dipyridine palladous, and dichloroacetamide palladous, and the pyridine containing multidentate ligand or high molecular ligand is selected from one of 4, 4'-combined pyridine, 2, 4, 6- collidine triazine, metal or hollow tetra pyridyl porphyrin, trans-1, 2- collidine ethylene, combined dipyridylzinc thiocyanate and polyethylene pyridine. LB film preparation technology or layered assembly method is adopted for organism selective ethylenic bond organic hydrogenation reaction, thus having high catalysis efficiency, easy realization in separation of catalyst and reactant and product, convenient operation and low cost.

The invention relates to naturally or artificially synthesized iso-thiocyanates i.e. JC-5411 compounds and their use in treating and preventing malignant tumor, wherein the compounds can directly suppress the methylation of the gene promoter / 5-UTR area CpG DNA, directly inhibit the reactivity of histone deacethylases (HADC), selectively promote histone acetylation and methylation, then further recover the expression of genes with important functions that are shut abnormally in cancer cells, thus control the malignant proliferation of cancer cells.

Nickel and/or vanadium can be removed or transferred from a hydrocarbon phase to a water phase using an Extractant Composition selected from an isocyanate, a thiocyanate, a cyanides, mercaptides, nitrites, and mixtures thereof. The Extractant Composition may also include at least one mineral acid, a solvent, and other additives. The invention permits transfer of vanadium and nickel from a hydrocarbon into an aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil.

Disclosed is an electrolyte for batteries, which comprises: (a) an electrolyte salt; (b) an electrolyte solvent; and (c) a sulfonate-based compound containing at least one electron withdrawing group (EWG) selected from the group consisting of a cyano group (—CN), an isocyanate group (—NCO), a thiocyanate group (—SCN) and an isothiocyanate group (—NCS). An electrode comprising the sulfonate-based compound or a chemical reaction product thereof, partially or totally formed on the surface thereof, and an electrochemical device comprising the electrolyte and/or the electrode are also disclosed. The electrochemical device using the sulfonate-based compound containing a cyano group, an isocyanate group, a thiocyanate group and/or an isothiocyanate group as an additive for electrolytes can provide significantly improved high-temperature lifespan characteristics.

The invention discloses a method for removing cyanide, thiocyanate, COD and arsenic in waste liquid, comprising the following steps: the cyanide, the thiocyanate, the COD and the arsenic in the waste liquid are deeply treated by utilizing ozonized gas, a mode with continuous treatment and direct discharge can be adopted, also a mode with batch treatment and intermittent discharge can be adopted, and the implementation process of the method is easy to control; in the range of the pH value with sectioned control, the generation concentration and mass velocity of ozone do not need to be required strictly, the problem that single technology can not treat the cyanide, the thiocyanate, the COD and the arsenic in the waste liquid deeply can be solved, the cost and the operation complexity of technological equipment are reduced, and the environmental pollution is reduced; solid suspensions (SS) in the treated waste liquid is removed by settlement, and clear liquor is directly discharged outwards or returned to the upstream technology for repeated use; the contents of pollutants in the treated waste liquid are stable, the total content of the cyanide is less than 0.2mg/L(waste water); the content of the thiocyanate is less than 5mg/L(waste water); the total content of the COD is less than 30mg/L; the total content of the arsenic is less than 0.5mg/L(waste water), and no secondary pollutants are generated in the reaction process.

The present invention provides a process for making N-alkoxy(or aryloxy)carbonyl isothiocyanate derivatives by reacting a chloroformate with a thiocyanate, in the presence of an organic solvent and a catalytic amount of a N,N-dialkylarylamine, to produce a N-alkoxy(or aryloxy)carbonyl isothiocyanate intermediate product, wherein the intermediate product is converted to a N-alkoxy(or aryloxy)carbonyl isothiocyanate derivative in high yield and purity.

The invention discloses a repair method for mercury-polluted soil. The repair method comprises the following steps: ploughing up surface soil with a depth of 25-30 centimetres away from ground surface, of the mercury-polluted soil, air-drying, grinding and sieving to obtain pre-treated surface soil; forming a passivator from 40-55 parts of bentonite, 5-15 parts of hydroxyapatite, 3-8 parts of ammonium thiosulphate and 8-16 parts of calcium hydroxide in parts by mass; adequately and uniformly mixing the passivator with the treated surface soil according to an added amount which is 2-5% of the mass of the surface soil, of the passivator, standing for 10-20 days until mercury with a content of 70% in the surface soil is fixed, and completing passivator repair; and levelling the surface soil, planting Indian mustard, dissolving calcium thiocyanate in water and uniformly spraying the solution into the peripheral soil of the root systems of Indian mustard during the vigorous growth period of Indian mustard, and finally harvesting Indian mustard. The repair method disclosed by the invention is simple to operate, low in cost, short in remediation period, and suitable for application of repair for large-area mercury-polluted soil plants.