10 results about "Salicylhydroxamic acid" patented technology

The invention relates to the technical field of aluminiferous rock series ore processing, in particular to a method for sorting and extracting titanium concentrate from aluminiferous rock series ore. The method comprises the steps that the aluminiferous rock series ore is subjected to crushing and first grinding in sequence, and first ore pulp is obtained; the first ore pulp is subjected to desiliconization direct flotation through a first acid-base regulator and a first collecting agent, and desiliconized rough concentrate pulp is obtained; the first collecting agent comprises at least one of sodium oleate, sodium benzohydroxamic acid and sodium salicylhydroxamic acid; the desilicication rough concentrate pulp is subjected to secondary grinding, and second ore pulp is obtained; performing micro-bubble flotation on the second ore pulp by using a second pH regulator, an inhibitor, an activating agent, a second collecting agent and a foaming agent to obtain titanium concentrate; and the second collecting agent comprises (2-hydroxy-2-methyl propyl) (phenyl) phosphinic acid, diphenyl phosphinic acid and diisooctyl phosphinic acid. According to the method, the yield of the titanium concentrate is increased through the synergistic effect of stage grinding separation, precise reagent matching and micro-bubble enhanced separation.

The invention discloses a preparation method of salicylhydroxamic acid, and relates to the technical field of flotation reagents and preparation thereof, in particular to the preparation method of salicylhydroxamic acid, which comprises the following steps: in the presence of an organic solvent and water, adding a phase transfer catalyst, alkali and a hydroxylamine hydrochloride aqueous solution into a reaction tank, uniformly stirring, adding methyl salicylate, and reacting for 2-4 hours at the temperature of 50-60 DEG C; after the reaction is finished, concentrated sulfuric acid is added to obtain salicylhydroxamic acid, through the arrangement of the reaction tank, a stirring rod, an extrusion bag and a slope ring plate, the stirring rod can be driven by a driving column to rotate, and the downward moving-resetting circulation of the stirring rod is achieved through the cooperation of an adjusting rod, a top block and the slope ring plate; the extrusion bag is driven to press and grind sodium hydroxide particles gathered on the inner bottom surface of the reaction tank, particle aggregation is broken, the particles are refined, the sodium hydroxide dissolution rate is increased, local high temperature is prevented from damaging key components such as hydroxylamine and methyl salicylate, generation of non-target substances is reduced, and the yield and purity of salicylhydroxamic acid are improved.

The application provides a lithium mica flotation collector and a preparation method and application thereof, and relates to the technical field of mineral flotation. The preparation method of the lithium mica flotation collector comprises the following steps: S1, uniformly mixing methanol and concentrated sulfuric acid to obtain solution A; S2, adding modified salicylhydroxamic acid to the solution A and uniformly mixing to obtain solution B; S3, adding water, sulfonated oleic acid and fatty alcohol polyoxyethylene ether to the solution B and uniformly mixing to obtain solution C, and heating and stirring the solution C to obtain the lithium mica flotation collector. The lithium mica flotation collector realizes effective flotation of lithium mica and improves the recovery rate of lithium mica.

The invention belongs to the technical field of preparation of crystal functional materials, and particularly relates to a ferrocene functionalized titanium oxygen cluster as well as a synthesis method and application thereof. The molecular formula of the ferrocene functionalized titanium oxygen cluster is Ti6 (mu3-O) 2 (mu2-O) (L1) 2 (L2) 2 (OiPr) 10. The ferrocene functionalized titanium oxygen cluster is synthesized by the following steps: adding isopropyl titanate, ferrocenecarboxylic acid, salicylhydroxamic acid and an isopropanol solvent into a reaction kettle, stirring for 20-30 minutes at room temperature, putting into a drying oven at 80-100 DEG C, reacting for 48-96 hours, cooling to 25-30 DEG C, separating out crystals, separating, washing and drying to obtain the ferrocene functionalized titanium oxygen cluster. The ferrocene functionalized titanium oxygen cluster has good stability, narrower energy gap and excellent optical activity, and shows excellent photocatalytic activity in photocatalytic CO2 reduction reaction as a heterogeneous catalyst.

The application belongs to the field of mineral flotation, and particularly discloses a composite branched alkyl salicylhydroxamic acid collector and a flotation application thereof. The composite branched alkyl salicylhydroxamic acid collector comprises formula 1A (1A), formula 1B (1B) and formula 1C (1C). The branched alkyl is introduced into the collector, so that the hydrophobic ability and the collecting ability are improved, and the separation and enrichment of strategic metal oxide minerals such as copper, iron, tin, tungsten, titanium and rare earth are improved.

The invention discloses a water treatment method for a retainer after spraying an antirust agent, and belongs to the technical field of industrial sewage treatment. The method comprises the following steps: adjusting the pH value of water after spraying an anti-rust agent on a retainer, carrying out primary filter pressing to remove large-particle impurities in sewage, conveying a mixed solution of modified activated carbon and water and the sewage into a stirring cylinder for stirring, carrying out secondary filter pressing, and carrying out secondary filter pressing to remove large-particle impurities in the sewage. After being treated by modified chitosan, the water is conveyed into a precipitation tank, sodium hypochlorite is added, the water is left to stand in the precipitation tank, and treated water is obtained; the modified chitosan is obtained by modifying salicylhydroxamic acid and trihydroxybenzoic acid. According to the treatment method, metal ions and particle impurities in the sewage can be removed, the influence on a water-based antirust agent system is small, the water-based antirust agent is reserved in the treated water to the maximum extent, the treated water is used in a water-based antirust agent spraying process, the utilization rate of water resources and the water-based antirust agent is increased, and then the production cost is reduced.

The invention discloses a flotation separation collecting agent for associated ultrafine particle apatite in vanadium titano-magnetite and a preparation method and a direct flotation process of the flotation separation collecting agent, and relates to the technical field of mineral separation. The flotation separation collecting agent comprises oxidized paraffin soap, salicylhydroxamic acid, soya bean lecithin and dodecyl sulfopropyl betaine. The preparation method comprises the following steps: independently dissolving the components, and sequentially mixing. The flotation separation collecting agent for the superfine apatite has the characteristic of synergistic interaction of multiple agents, the agent cost is low, the collecting capacity and the separation selectivity of the collecting agent for the superfine apatite are remarkably improved, the phosphorus resource recovery rate exceeds 80%, the loss of the phosphorus resource in tailings is effectively reduced, and the flotation separation collecting agent for the superfine apatite is suitable for industrial production. And efficient recycling of Panxi vanadium titano-magnetite associated phosphorus resources is achieved.

The invention relates to the technical field of corn dehydration, in particular to application of salicylhydroxamic acid in promoting corn kernel dehydration. The embodiment of the invention provides application of salicylhydroxamic acid in promoting dehydration of corn kernels for the first time. When the salicylhydroxamic acid is applied to the corn, on the premise that the yield of the corn is not affected, the grain filling and maturing process can be accelerated, the dehydration rate of the corn grains is remarkably increased, and the water content of the grains is effectively reduced.

The application discloses a hydroxamic acid-quaternary ammonium salt ionic liquid collector and a preparation method and application thereof. The structural formula of the hydroxamic acid-quaternary ammonium salt ionic liquid collector is shown as formula (I): (I). The hydroxamic acid-quaternary ammonium salt ionic liquid collector has good collecting property and selectivity to rare earth ores compared with traditional salicylhydroxamic acid collectors, and can still achieve good collecting effect without adding a foaming agent, and has a wide application prospect.

The invention belongs to the technical field of metal salicylhydroxamic acid molecular cage complex materials, and particularly discloses a metal salicylhydroxamic acid molecular cage for detecting metronidazole and a preparation method and application of the metal salicylhydroxamic acid molecular cage. The structural general formula of the metal salicylhydroxamic acid molecular cage is {M2Ga8 (shi) 8 (X) 4}; wherein M is one of lanthanide series rare earth metal elements; shi represents a salicylhydroxamic acid ligand; x is a dicarboxylic acid ligand. Compared with the prior art, the prepared metal salicylhydroxamic acid molecular cage has a specific cavity and skeleton structure, adsorption and aggregation of small molecular compounds can be achieved, and due to the fact that rare earth elements emit light, the content of the small molecular compounds can be detected through fluorescence intensity changes. The molecular cage provided by the invention is used for fluorescence sensing detection of the content of metronidazole in wastewater, and has the advantages of high sensitivity, fast response and the like.