113 results about "Sodium formate" patented technology

The synthesis method comprises the following steps: S1, adding furandicarboxylic acid into a reaction container, adding a certain amount of methanol, adding a double-acid-site strong acid solid catalyst, starting stirring, controlling the reaction temperature to carry out esterification reaction, and after the reaction is finished, filtering, washing and drying to obtain furandihydrazide; separating out the double-acid-site strong acid solid catalyst to obtain clear liquid, namely dimethyl furandicarboxylate; s2, transferring dimethyl furandicarboxylate serving as a raw material into another reaction container, adding a certain amount of sodium formate serving as a catalyst, then adding a proper amount of hydrazine hydrate, controlling the reaction temperature, keeping a reflux state, reacting for a period of time, cooling to room temperature after the reaction is finished, and performing centrifugal separation to obtain white solid furandihydrazide. The synthesis method has the advantages of simple reaction steps, no need of toxic and harmful catalysts, mild reaction conditions, high conversion rate and high yield, and can realize efficient, green and low-cost production of furandihydrazide.

The invention relates to a water treatment agent for advanced treatment of thallium-containing wastewater in nonferrous metallurgy. The water treatment agent is prepared by fully mixing and uniformly stirring the following raw materials in parts by weight: 50-80 parts of a sodium diethyldithiocarbamate aqueous solution with the mass concentration of 5%-15%, 10-40 parts of sulfide or polysulfide and 10-40 parts of sodium thiosulfate. The water treatment agent provided by the invention can realize efficient removal of heavy metal ions, does not need a subsequent treatment process, not only simplifies the treatment process, but also reduces the treatment cost.

The application relates to the technical field of fine chemical industry, in particular to a circulating reaction device and a method for preparing sodium 3,3',4,4'-biphenyltetracarboxylate by using the same. The circulating reaction device comprises: a batching kettle, a discharging pipeline and a circulating pipeline are arranged on the batching kettle; a reaction unit, an inlet pipeline and an outlet pipeline are arranged on the reaction unit; the inlet pipeline is communicated with the discharging pipeline; the outlet pipeline is communicated with the circulating pipeline; a filler area is arranged in the reaction unit; the fillers of the filler area at least comprise a catalyst; a pump is arranged on the inlet pipeline; a qualified reaction liquid kettle, a qualified liquid inlet pipeline is arranged on the qualified reaction liquid kettle, and the qualified liquid inlet pipeline is communicated with the outlet pipeline; a washing liquid kettle, a washing liquid first pipeline and a washing liquid second pipeline are arranged on the washing liquid kettle, the washing liquid first pipeline is communicated with the outlet pipeline, the inlet pipeline is communicated with the washing liquid second pipeline, and the washing liquid kettle is used for containing washing liquid for washing the catalyst. The application can effectively improve the reaction conversion rate, realize automatic production and improve the production efficiency.

The invention provides a moisturizing dust suppressant and a use method thereof, and relates to the technical field of dust suppression. The moisturizing dust suppressant is prepared from the following raw materials in percentage by mass: 18 to 43 percent of glycerol, 0.1 to 0.6 percent of guar gum, 3 to 8 percent of magnesium sulfate, 0.1 to 0.3 percent of sodium dodecyl benzene sulfonate, 1 to 3 percent of sodium benzoate and the balance of water, wherein the mass of the raw materials is 100 percent. The use method comprises the following steps: selecting the spraying concentration of the moisturizing and dust suppressing agent according to the road condition of a target road, and selecting the nozzle type of the spraying facility for spraying according to the spraying requirement; the road conditions comprise municipal roads and slag roads; the spraying requirement comprises the spraying area or the spraying uniformity of the spraying operation. According to the moisture-preserving dust suppressant, the dust concentration is remarkably reduced, the safety of an operation environment is improved, and the loss of coal resources is reduced. In addition, by means of the spraying method, the use efficiency and economic benefits of the dust suppressant are remarkably improved, and the problem that a traditional spraying mode is poor in effect in a complex application scene is effectively solved.

The invention discloses an alpha-dideuterium methylated sulfone compound as well as a synthesis method and application thereof, and belongs to the field of organic chemistry. In an air atmosphere, benzyl methyl sulfone and 2-((3, 5-dimethyl-4-methoxypyridine-2-yl) methylsulfonyl)-5-methoxy-1H-benzo [d] imidazole are used as substrates, in the presence of a catalyst [Cp * IrCl2] 2 and cesium carbonate, deuterated paraformaldehyde is used as a carbon source, sodium formate is used as an additive, and the alpha-dideuterium methylated sulfone compound is obtained through a reaction in an acetonitrile solvent at 120 DEG C. The reaction does not need to use a ligand and hydrogen, the reaction is simple and efficient, the potential value of the compound in medicinal chemistry is shown, and the compound has a certain inhibition effect on H3N2 subtype influenza viruses and has remarkable application potential.

A patch composition for targeting herpes virus comprising the following ingredients: a patch base, trisodium phosphate, malic acid, sorbitol, sodium benzoate, cellulose gum, peppermint, sodium saccharin, naringin, wind wheel grass extract, xanthan gum, polyethylene glycol-8, calcium carbonate, hydroxyethyl cellulose, hydroxypropyl guar gum, sodium nitrate, hydrated silica, sodium lauryl sulfate, strontium chloride hexahydrate, tranexamic acid, two-faced needle extract, sodium monofluorophosphate, sea salt, potassium nitrate, sodium chloride, and purified water q.s.

This invention discloses a method for the continuous synthesis of benzoic acid from sodium benzoate mother liquor, comprising the following steps: (1) continuously pumping sodium benzoate mother liquor into a high-temperature acidification kettle, adding hydrochloric acid dropwise, controlling the pH value to 1~2, and the reaction temperature to 97~100℃; (2) overflowing the acidification mother liquor into a cooling kettle #1 to reduce the temperature to 70~80℃; (3) overflowing part of the acidification mother liquor in the cooling kettle #1 into a dispersion kettle as a dispersion mother liquor, and overflowing part of the acidification mother liquor into a cooling kettle #2; reducing the temperature to below 40℃; adding crude benzoic acid to the dispersion kettle to increase the concentration of benzoic acid, and then returning it to the high-temperature acidification kettle; (4) centrifuging the acidification mother liquor in the cooling kettle #2 into a centrifuge and then discharging it into a crude benzoic acid buffer tank, part of the crude benzoic acid into the dispersion kettle, and the remaining crude benzoic acid dried and discharged to obtain the finished benzoic acid. This invention utilizes continuous high-temperature acidification of sodium benzoate mother liquor and increases the concentration of benzoic acid during high-temperature acidification, resulting in high-quality benzoic acid with high production efficiency.

The invention discloses a mosquito luring agent gel composition as well as a preparation method and application thereof, and relates to the technical field of daily chemical industry. The composition provided by the invention has a gel dosage form and comprises a gel matrix and a long-acting mosquito-luring component, the long-acting mosquito-luring active component is mainly tea-flavor ketone, meanwhile, sodium benzoate is added to be compounded with the tea-flavor ketone, and the sodium benzoate can realize slow release of the tea-flavor ketone through intermolecular interaction with the tea-flavor ketone. Meanwhile, the introduction of sodium benzoate can also adjust the microstructure of the obtained gel, has important influence on the texture of the gel, and can improve the stability of the gel. Based on the introduction of sodium benzoate and the gel formulation, the water-retaining property of the gel and the slow release of tea flavor ketone are remarkably improved, the durability of mosquito trapping activity is prolonged, the mosquito trapping rate within 72 hours is stabilized to be 58% or above, the reduction degree is not higher than 27.5% compared with the mosquito trapping rate after 24 hours, and the gel has excellent large-scale application prospects.

The embodiment of the invention discloses a pharmaceutical composition for treating gastrointestinal cancer and a pharmaceutical preparation. The pharmaceutical composition is prepared from the following raw materials in parts by weight: 1-3 parts of sodium bicarbonate, 0.01-0.5 part of phenol, 3-10 parts of sodium sulfate and 3-5 parts of sodium formate. The pharmaceutical composition disclosed by the invention has remarkable advantages in the aspect of treating gastrointestinal tract cancer, not only can effectively prevent cancer cell diffusion and realize focus elimination, but also can provide a safer and more effective treatment method for patients, improve the living quality and reduce the treatment cost.

A green synthesis method of azoxybenzene compounds, in an organic solvent, using aromatic amine or aromatic heteroamine as raw material, using an oxidant and a catalyst to form a reaction system, selectively oxidizing the aromatic amine into the corresponding azoxy compound; wherein the catalyst is one or several of NaOAc, sodium formate, KF, NaF, CsF, CaF2 and R''4NF, wherein R'' is one of alkyl, methyl, ethyl and butyl; the catalyst used in the application has low cost, high activity, good selectivity and small environmental pollution compared with the metal catalyst of the prior art, and conforms to the green environmental protection concept; at the same time, the catalyst has small dosage, and does not need to consider catalyst recovery treatment and other problems, greatly simplifying the operation steps.

The invention provides an agent composition for improving the recovery rate of copper, nickel, iridium and rhodium in copper-nickel symbiotic sulfide ore, and the agent composition comprises the following raw materials in parts by mass: 85-90 parts of sodium diethyldithiocarbamate, 1-10 parts of mercaptoacetic acid-2-naphthylamine, 1-5 parts of furanformyl dioxime and 1-10 parts of dialkyl dithio-oxadiamide. The invention also provides a use method of the medicament composition. The use method comprises the step of adding the sodium diethyldithiocarbamate, the mercaptoacetic acid-2-naphthylamine, the furanformyl dioxime and the dialkyl dithio-oxadiamide at different time. The raw materials of the medicament provided by the invention are synergistically used, and recovery of independent iridium and rhodium minerals and iridium and rhodium minerals closely linked with (or wrapped by fine nickel sulfide and copper) fine nickel sulfide and copper in ores is considered.

The invention relates to the technical field of snow-melting agents, and particularly discloses an environment-friendly snow-melting and deicing composition and a preparation method thereof. The environment-friendly snow-melting and deicing composition comprises organic acid salt sustained-release microspheres, the organic acid salt sustained-release microsphere comprises a core material and a shell layer wrapping the core material, and according to the total weight of the organic acid salt sustained-release microsphere, the core material comprises the following raw materials in parts by weight: 30-45 parts of calcium magnesium acetate, 10-20 parts of sodium formate, 15-25 parts of potassium acetate, 8-15 parts of urea, 1-3 parts of a surfactant and 2-5 parts of a corrosion inhibitor; the shell layer is prepared from the following raw materials in parts by weight: 5 to 8 parts of sodium alginate, 3 to 6 parts of chitosan, 2 to 4 parts of calcium chloride, 1 to 3 parts of carboxymethyl cellulose and 1 to 2 parts of nano silicon dioxide. The snow melting and deicing speed of the environment-friendly snow melting and deicing composition in a severe cold environment can be increased.

An integrated energy system comprising a power plant configured to generate steam. The power plant may comprise a nuclear reactor and / or an electricity generation system. A chemical product generation system may comprise a first reaction chamber that receives sodium formate (HCOONa), which decomposes into sodium oxalate ((COO)2Na2) and hydrogen (H2), via the insertion of a first portion of steam at a first temperature, wherein the steam may comprise a first reaction chamber containing superheated steam. A chemical product generation system may comprise a second reaction chamber that receives sodium oxalate ((COO)2Na2), which decomposes into sodium oxide (Na2O), carbon monoxide (CO), and carbon dioxide (CO2), via the insertion of a second portion of steam at a second temperature. A syngas generation system may be operably connected to the chemical product generation system and configured to generate a combination of hydrogen (H2), carbon monoxide (CO), and / or carbon dioxide (CO2), and / or syngas.

The application provides application of n-methyl-n-pentyl thiourea as a collector in a sulfur-oxygen mixed copper-cobalt ore and a synchronous flotation method, and relates to the technical field of flotation. In view of problems of the traditional sulfur-then-oxygen process, such as a complicated process, a complex process, and influence of changes of oxidation and sulfidation rates on the flotation effect of the sulfidized copper-cobalt ore, the application provides a new flotation process and reagent, does not need to use a sulfidation agent for sulfidation, simultaneously floats and sulfidizes and oxidizes the copper-cobalt ore, and simultaneously floats the oxidized and sulfidized copper-cobalt ore by using an activator sodium dimethyl dithiocarbamate and a chelate collector n-methyl-n-pentyl thiourea. The flotation process of the application is simple, efficient, clean and efficient, and provides a new method, a new process and a new way for the flotation of the complex sulfur-oxygen mixed copper-cobalt ore.

The invention discloses a micro-fine particle cassiterite flotation combined inhibitor and a preparation method and application thereof, and belongs to the technical field of mineral processing flotation. The combined inhibitor is composed of sodium phosphinate, sodium alginate and DL-2-aminobutyric acid and can be used for the flotation process of micro-fine particle cassiterite, and excellent flotation indexes are obtained. The combined inhibitor can remarkably inhibit siliceous gangue minerals in micro-fine particle cassiterite flotation, efficient selective separation is achieved, through the synergistic effect of all the components, the combined inhibitor can greatly reduce the total agent dosage, and the combined inhibitor is easy to prepare, environmentally friendly and convenient to industrially store and implement. The method is of great significance in achieving efficient flotation separation and enrichment of micro-fine particle cassiterite and improving the comprehensive utilization rate of tin resources.

The application belongs to the technical field of oil exploitation, and particularly relates to a profile control agent for oil exploitation and a preparation method thereof. The profile control agent for oil exploitation comprises the following components in percentage by mass: acrylamide 5-8%, sodium styrene sulfonate 8-10%, grafting epoxy group carboxymethyl cellulose 1-2%, sodium formate 0.03-0.06%, crosslinking agent 0.05-0.15%, ammonium persulfate 0.03-0.05%, and the balance is water. The grafting epoxy group carboxymethyl cellulose is used as an active skeleton, and is copolymerized and crosslinked with acrylamide and sodium styrene sulfonate. The ring-opening reaction of the epoxy group is used to permanently anchor the cellulose skeleton in the polymer network in the form of a covalent bond, so that a multiple crosslinking profile control agent with high plugging strength and excellent temperature resistance is constructed.

A preparation method of xanthone belongs to the technical field of preparation of organic compounds, o-fluorobenzonitrile and phenol are used as raw materials, an alkaline substance potassium carbonate is added, 2-phenoxy benzonitrile is generated through reaction, and the product obtained through treatment is high in purity and white in color and can be put into the next step of reaction without column chromatography. Subsequently, 2-phenoxybenzonitrile and a sodium hydroxide solution are subjected to a heating reaction to generate 2-phenoxy sodium benzoate, the product is dissolved in water and acidized to obtain 2-phenoxy benzoic acid, and 2-phenoxy benzoic acid with high purity can be obtained through filtration. And adding a proper amount of concentrated sulfuric acid into the 2-phenoxybenzoic acid, carrying out heating reaction, pouring the reaction liquid into water, and carrying out suction filtration to obtain a white solid xanthone with the purity of 99%.

The invention discloses a biogas waste liquid cement grinding aid and a preparation method thereof, and belongs to the technical field of cement grinding aids. The biogas waste liquid cement grinding aid comprises the following components in parts by mass: 100 parts of biogas waste liquid and 1-2 parts of sodium formate. The preparation method comprises the following steps: adding sodium formate into the biogas waste liquid, and stirring for activating reaction to obtain the biogas waste liquid cement grinding aid. The grinding aid realizes resource utilization of the biogas waste liquid, is energy-saving and environment-friendly, has the characteristics of no toxicity, no corrosion and no side effect, and has no adverse effect on the durability of concrete.

The invention discloses a two-component water-based instant adhesive and a preparation method thereof, the two-component water-based instant adhesive comprises a component A and a component B. The component A specifically comprises the following components: 4.0-4.5 parts of polyvinyl alcohol, 0.1-0.2 part of sodium bicarbonate, 0.15-0.2 part of ammonium persulfate, 0.1-0.2 part of a BYK024 defoaming agent, 25.0-26.0% of vinyl acetate, 8.0-9.0% of a functional crosslinking monomer, 1.0-1.5 parts of methacrylic acid, 1.0-1.5 parts of chloroprene rubber, 0.12-0.15 part of a TEGO Dispers 610S dispersing agent, 10.0-11.0 parts of calcium carbonate, 0.1-0.12 part of sodium benzoate and 50.43-45.63 parts of water; the component B comprises the following components in parts by weight: 7.0 parts of a curing agent, 0.6 part of an accelerant, 1.0 part of a catalyst and 91.4 parts of water. The two-component water-based instant adhesive disclosed by the invention can realize instant adhesion and is harmless to a human body and the environment.

This invention discloses a method for recovering nickel resources from copper electrolytic refining liquid, belonging to the field of valuable metal resource recovery technology. The invention includes (1) filtering the copper electrolytic refining liquid and adjusting its pH to 4.0-6.0; (2) adding a composite precipitant to the copper electrolytic refining liquid with pH 4.0-6.0 from step (1), while simultaneously heating the liquid. After the reaction, the liquid is allowed to stand until the reaction product liquid forms three layers. The composite precipitant is a mixed aqueous solution of sodium thiosulfate and sodium diethyldithiocarbamate; (3) performing stratified recovery on the three layers formed in step (2), filtering the bottom layer to obtain a precipitate, washing the precipitate, and completing the nickel resource recovery. This invention achieves the separation of nickel resources from the electrolytic liquid and other precipitates in one step, effectively realizing efficient and high-quality separation and recovery of nickel resources.

The invention relates to the technical field of pentaerythritol mother liquor recovery, and particularly discloses a process and a system for separating pentaerythritol and sodium formate from pentaerythritol mother liquor, and the process comprises the following steps: S1, adjusting the pH value of pentaerythritol synthesis mother liquor to 6.5-7.5, and adsorbing and decolorizing through activated carbon; s2, concentrating the pretreated mother liquor until the specific gravity is 1.25-1.35 g / cm < 3 >, and performing programmed cooling crystallization and centrifugal separation to obtain crude pentaerythritol crystals and centrifugal mother liquor; s3, taking sulfonic cation exchange resin as a stationary phase and 10-30% ethanol aqueous solution as a mobile phase, and continuously separating to obtain a high-purity sodium formate solution and a tripentaerythritol enriched solution.

The invention relates to the field of pathological diagnosis and experiments, in particular to a bone marrow tissue rapid decalcification solution and a decalcification method, the bone marrow tissue rapid decalcification solution comprises the following raw materials: 5.0% of formic acid, 1.0 w / v% of sodium formate, 2-4 v / v% of formaldehyde, 0.1 w / v% of EDTA disodium salt, 1.0 v / v% of propylene glycol, 0.1 v / v% of a tissue penetrant, 0.1 w / v% of vitamin C and the balance of water, and the pH value is 3.0. The invention further provides a preparation method and application of the bone marrow tissue rapid decalcification liquid. The weak acid-chelating agent synergistic buffer system is creatively adopted, the stabilizer, the penetrating agent and the antioxidant are added, optimal treatment of rapid decalcification of the bone marrow tissue is truly achieved, and the kit has the advantages of good cellular morphology and antigen preservation and is suitable for rapid and accurate pathologic diagnosis of the bone marrow tissue.

The invention belongs to the technical field of sodium ion batteries, and particularly relates to an efficient sodium formate composite positive electrode sodium supplementing agent and preparation and application thereof. According to the preparation method, firstly, iron cluster catalyst particles are prepared through high-temperature calcination, then sodium formate grows on the surface of the catalyst in situ through an anti-solvent crystallization method, the composite sodium supplementing material is formed, and the composite structure can synchronously achieve reduction of the decomposition potential of sodium formate and improvement of the decomposition efficiency. Meanwhile, after the composite sodium-supplementing material is coupled with a layered oxide positive electrode, an efficient positive electrode sodium-supplementing effect can be played, active sodium loss caused by formation of a hard carbon negative electrode SEI film is made up, the first effect and the cycle performance of the battery are improved, and nearly 100% decomposition efficiency can be achieved. The molecular catalytic coupling size control effect is originally created, the sodium supplementing performance of sodium formate is remarkably improved, after the sodium formate is applied to a layered oxide positive electrode hard carbon negative electrode battery system, the first effect and the cycle performance of a battery are effectively improved, and good commercial application prospects are achieved.

Disclosed is a thickener dispersion including a thickener including at least one among carboxymethyl cellulose and metal salt of the carboxymethyl cellulose, a change-over-time inhibitor, and an aqueous solvent. The change-over-time inhibitor includes at least one selected from the group consisting of phenoxyethanol, sodium azide, paraben, formaldehyde, 5-chloro-2-methyl-4-isothiazolin-3-one, sodium benzoate, ethylhexylglycerin, and 1,2-hexanediol. The thickener is included in an amount of 0.05 wt % to 3.5 wt % in the thickener dispersion, and the change-over-time inhibitor is included in an amount of 0.05 wt % to 3.0 wt % in the thickener dispersion.

The invention discloses a water-based self-suspension composite support material as well as a preparation method and application thereof, and belongs to the technical field of oil exploitation. The composite support material comprises aggregate and gel coated on the surface of the aggregate, the aggregate is quartz sand or ceramsite, and the aggregate is subjected to amination surface treatment before being coated; the gel is prepared from the following components in parts by weight: 10 to 20 parts of prepolymer A, 40 to 50 parts of acrylamide, 20 to 30 parts of acrylonitrile, 15 to 25 parts of 4-methacrylamide salicylic acid, 1 to 5 parts of carbamide, 5 to 15 parts of sodium hydroxide, 0.02 to 0.08 part of EDTA-2Na (Ethylene Diamine Tetraacetic Acid), 1 to 3 parts of cross-linking agent, 1 to 10 parts of first initiator and 0.01 to 0.1 part of sodium formate. The gel material on the surface of the support material can still reduce adhesion even if the gel material is affected with damp, so that the existence of aggregates is avoided, the gel material can be quickly and uniformly dispersed when being added into water, formation pores or cracks are prevented from being blocked, and the continuity of fracturing construction is improved.

The invention discloses a dispersing agent for solid-waste-based cementing material low-carbon concrete and a preparation method of the dispersing agent. The dispersant is prepared by polymerizing the following raw materials: an unsaturated polyether macromonomer, an unsaturated carboxylic acid monomer, a sulfonic group-containing monomer, a functional small monomer, a chain transfer agent, a reducing agent, an initiator and water. The preparation method of the unsaturated polyether macromonomer comprises the following steps: uniformly mixing trimesic acid and a sodium hydroxide solution to obtain a sodium trimesic acid solution; the preparation method comprises the following steps: adding a polyether macromonomer and water into a reaction kettle, stirring at 50-70 DEG C in an inert atmosphere until the polyether macromonomer is completely dissolved, sequentially adding a sodium trimesic acid solution, polyethylene glycol monomethyl ether glycidyl ether and phosphono butane tricarboxylic acid, and reacting to obtain the unsaturated polyether macromonomer. The dispersant product provided by the invention can effectively control the slump loss of concrete, has the advantages of strong adsorption resistance, water consumption reduction, excellent initial dispersibility and good slump retention performance, and is suitable for low-carbon concrete prepared from a solid waste-based cementing material.