95 results about "Iodic acid" patented technology

This invention relates to preparation method of a epoxy modified acrylic latex automotive sediment dope. It adopts ethoxyline resin to modify acrylate, take acrylics monomer as solvent to dissolve ethoxyline resin, emulsify it to gain micro milk particle, then adopt hud emulsion polymerization craft to gain latices. It takes glycollic acid , iodic acid, citric acid as accelerating component of self- sediment painting. Add this self- sediment dope into obtained copolymer emulsion, not at all use organic solvent, avoid harm to environment.

An iodine supplement used for the forage of animals and fowls and human health-care food or medicine is a hydrotalcite carried molecular iodine. It is prepared through providing hydrotalcite as micro reactor and reducing or oxidizing reaction to reduce iodic acid (or iodate) or oxidize iodide to obtain molecular iodine.

The invention discloses a preparation method of an iodine-containing disinfectant with a stable component content, which comprises the following steps: mixing raw materials together and conducting reacting at 50-150 DEG C for 5-20 hours, wherein the raw materials comprise elemental iodine and any one of the following seven raw materials: (1) carboxylic acid and alcohol, (2) carboxylic acid, alcohol and water, (3) carboxylic acid, alcohol, carboxylic ester and water, (4) alcohol, carboxylic ester and water, (5) carboxylic acid, carboxylic ester and water, (6) carboxylic ester and water, and (7) carboxylic acid and water. According to the iodine-containing disinfectant, carboxylic acid, alcohol, water, ester and the like in the iodine-containing disinfectant are balanced through reversible esterification and/or ester exchange reaction under the condition that iodine serves as a catalyst, and/or simple substance iodine is subjected to disproportionation reaction under the condition that acid and water are contained to obtain stable balance among simple substance iodine, iodide ions and iodic acid. The iodine-containing disinfectant is stable in component and convenient to prepare, the content of iodine, iodide and carboxylic acid is kept stable after long-term storage (at least two years), and the iodine-containing disinfectant has a stable disinfection and sterilization effect.

The invention discloses a surface-modified lithium metal negative electrode material. A preparation method of the surface-modified lithium metal negative electrode material comprises the following steps: (1) dissolving an iodic acid substance in an anhydrous inert organic solvent, wherein the mass concentration of the iodic acid substance is 0.1% to 0.4%; (2) putting lithium metal in a water-free and oxygen-free glove box being full of argon, and polishing the surface of the lithium metal till the surface of the lithium metal shows metallic luster; (3) putting the polished metal lithium in the solution obtained in the step (1) for 5 to 60 minutes. According to the surface-modified lithium metal negative electrode material prepared according to the preparation method, the state of the surface of the lithium metal can be changed, so that the coulombic efficiency and the discharge capacity of a lithium battery adopting the surface-modified lithium metal negative electrode material can be improved effectively, the polarization of a lithium secondary battery can be reduced, and the service life of the lithium secondary battery can be prolonged.

A non-linear optical crystal iodic acid vanadium potassium is characterized in that a chemical formula is K (VO2)2 (IO3)3, molecular weight is 729.68, the non-linear optical crystal iodic acid vanadium potassium belongs to an orthorhombic system and a space group Ima2, and unit cell parameters include that a=14.136 (3), b=10.201 (2), c=8.064 (1), alpha=beta=gamma=90 degrees, V=1162.8 (3) and Z=4. A hydrothermal method is adopted for preparation. The iodic acid vanadium potassium K (VO2)2(IO3)3 has good non-linear optical performance, and a second harmonic generation (SHG) coefficient of powder of the iodic acid vanadium potassium is 3.6 times that of potassium titanyl phosphate (KTP).

The invention discloses a preparation method and application of high-molecular-weight deacetylated hyaluronic acid. The preparation method comprises the following steps: dissolving hyaluronic acid in anhydrous hydrazine containing 1% of hydrazine sulfate, reacting in a deoxidized nitrogen protective atmosphere at 60 DEG C for 72 hours, precipitating the reaction product with cold ethanol, dissolving the precipitate in 5% glacial acetic acid, adding 0.5M of iodic acid, standing at 4 DEG C for 2 hours, and adding excessive iodic acid into 57% hydriodic acid; and carrying out ether extraction to remove generated iodine, neutralizing, and carrying out freeze-drying to obtain the high-molecular-weight deacetylated hyaluronic acid. The zwitterion hyaluronic acid polysaccharide disclosed in the invention is used for immunological diseases, and has the advantages of obvious curative effect and no side effect.

The invention discloses an alga iodic acid aqueous medical fertilizer and a preparation method thereof. Each liter of the aqueous medical fertilizer comprises the following raw materials in mass percentage: 20 to 30 percent of alginic acid, 10 to 30 percent of mannite, 8 to 72 percent of potassium iodide, 1.6 to 15 percent of potassium iodate, 2 to 18 percent of iodine, 100 to 150 percent of monopotassium phosphate, 44 to 71 percent of anhydrous borax and the balance being water. The preparation method comprises the following steps: (1) the raw materials are taken out for standby according to mass ratio; (2) the anhydrous borax is dissolved in water to obtain a borax liquid; (3) the alginic acid is placed in the borax liquid, is evenly mixed, is added with the mannite and the monopotassium phosphate, and is stirred and dissolved to obtain a standby liquid A; (4) the potassium iodide, the potassium iodate and the iodine are placed in the water and are dissolved to obtain a standby liquid B; and (5) the standby liquid A and the standby liquid B are evenly mixed and stirred; after stirring and precipitation, a supernatant liquid is obtained and is the alga iodic acid aqueous medical fertilizer. The alga iodic acid aqueous medical fertilizer is suitable for various crops, is safe and reliable, has no pollution, no residue and no harm, is not influenced by geographical environment and climate, can promote growth of the crop, improve adverse resistance and the like.

A slow-release I-supplement used as the I-supplementing additive of forage or to prepare I-supplementing food or medicine for treating diseases is an anionic exchange resin containing the iodic acid radicals or I ions. It is prepared through the ionic exchange between iodic acid radicals or I ions and anionic exchange resin.

The invention discloses a BODIPY-containing bactericidal material and a preparation method and application thereof. The preparation method comprises that BODIPY-Br and sodium azide undergo a reactionto produce BODIPY-N3, BODIPY-N3 and acetylated maltoheptaose undergo a reaction under the catalytic action of a CuCl/PMDETA complex to produce BODIPY-Mal, and the BODIPY-Mal, iodic acid and iodine undergo an iodination reaction to produce the BODIPY-Mal-I bactericidal material. The BODIPY-Mal-I bactericidal material has good water solubility and completely retains the properties of BODIPY. The photodynamic power generated by BODIPY-Mal-I can effectively inactivate yeast cells and especially kill gram-positive bacteria. The preparation method has the advantages of simple processes, mild reaction conditions, low risk and low toxicity.

The invention discloses a method for preparing a ZnO/I-doped ZnO core/shell structure nanowire array. First a hydrothermal method is adopted to prepare a ZnO nanowire array on the surface of transparent conductive glass; then the ZnO nanowire array is put in a mixed solution of methyl alcohol containing iodic acid, zinc acetate and hexamethylene tetramine and water to prepare the ZnO/I-doped ZnO core/shell structure nanowire array. The I-doped ZnO shell layer prepared by the method provided by the invention can reduce the forbidden band width of ZnO, causing a light absorption range of ZnO to expand towards a visible light area, and the prepared composite structure can effectively improve application of a ZnO nanostructure to fields of solar cells, photocatalysis, photoelectric conversion, thermoelectric conversion and the like.

The invention discloses a stable iodine-containing disinfectant and a preparation method thereof, and the iodine-containing disinfectant comprises the following components by weight: 0.1-10% of elemental iodine or 1-40% of an iodine complex, 0.1-10% of iodide, 0.01-1.0% of an iodic acid compound, 0.1-40% of carboxylic acid and/or an acidic salt of carboxylic acid, 5-80% of alcohol, 0.1-30% of carboxylic ester, and 5-88% of water. The iodide is composed of iodine negative ions and hydrogen ions or metal cations or ammonium ions or quaternary ammonium ions. The iodine-containing disinfectant is simple in preparation method and stable in component content after long-term storage.

The invention relates to a magnetic lanthanum-iodine co-doped photocatalyst composite material and a preparation method thereof. The composite material is prepared by the following method: using ferroferric oxide nanoparticles as a magnetic core and using ethyl orthosilicate as a silicon source, coating the surface of the ferroferric oxide nanoparticles with a porous active silicon layer to obtaina porous magnetic carrier by using a sol-gel method, then using titanate as a titanium source and iodic acid as a raw material, and baking to obtain a precursor; and then adopting a precipitation-impregnation method, using lanthanum nitrate as a raw material, and preparing lanthanum-iodine co-doped visible-light catalytic magnetic porous titanium dioxide composite microspheres, namely the magnetic lanthanum-iodine co-doped photocatalyst composite material. According to the lanthanum-iodine co-doped photocatalyst composite material prepared by the fractional step method, lanthanide iodine andanatase titanium dioxide can be simultaneously doped and are attached to the magnetic matrix, and not only can the light response ability of the material be improved, but also the recycling capacity of the catalyst can be enhanced.

The invention discloses a method for synthesizing 3-iodine-phenylcarbazole, which comprises the following steps of: synthesizing 9-phenylcarbazole by performing Ullmann reaction on carbazole serving as an initial raw material and phenyl iodide under the action of cuprous oxide serving as a catalyst; and synthesizing a target compound 3-iodine-phenylcarbazole by performing iodo-reaction on the 9-phenylcarbazole and iodine under the catalysis of iodic acid and concentrated sulfuric acid. The synthesis method has the characteristics of high yield, low production cost and low pollution, and is simple.

A preparation method of iodate is characterized by comprising the following two steps: 1, iodic acid preparation: oxidizing refined iodine into iodic acid by using hydrogen peroxide as an oxidant, and using a small amount of nitric acid and hydracids such as chloric acid, bromic acid, and iodic acid as the catalyst for the oxidation reaction, wherein the amount of nitric acid is 1-10% of the fined iodine, the amount of hydracids is 0.5-50% of the refined iodine, the reaction temperature is 50 DEG C to 100 DEG C, and the reaction time is 4-8 h; and 2, iodate preparation: directly neutralizing the pure iodate solution obtained by step 1 by using hydrogen oxide or carbonate solution of alkali metal, wherein the reaction temperature of neutralization reaction is controlled in the range of 50-100 DEG C and the neutralization pH value is equal to 7.

The invention provides a preparation method of an iodic acid mixed solution and the iodic acid mixed solution prepared thereby. In the method, by adding a stabilizer in the preparation reaction process, the stability of the obtained iodic acid mixed solution can be effectively improved. Meanwhile, the iodic acid mixed solution has the advantages of high effective iodine content of the solution, good stability and the like.

The invention discloses an ITO film etching solution for a liquid crystal panel manufacturing process. The ITO film etching solution comprises, by weight, 3.5-4.3% of oxalic acid, 0.2-0.8% of butyric acid, 1.2-2.6% of n-pentanoic acid, 1.2-2.6% of iodic acid, 15-20% of hydrochloric acid and the balance pure water. Through use of additives such as butyric acid, n-pentanoic acid, iodic acid and hydrochloric acid based on the original technology, ITO etching solution surface tension is effectively reduced, penetration and infiltration effects are produced, an indium tin oxide semiconductor transparent conductive film etching rate is moderate and a reaction is stable so that product etching effects are improved without influence on product quality, the product can be stored at a low environment temperature, incomplete etching produced by the original technology is avoided, and storage at a low temperature is realized. The ITO film etching solution is suitable for large scale production.

The invention relates to an industrial method for preparing pure iodic acid and a salt thereof. According to the method, pure iodine is oxidized by hydrogen peroxide, a small amount of nitric acid or oxoacid or non-oxoacid of halogen is added to prepare pure iodic acid solution, the yield of the pure iodic acid solution can reach 98% on the basis of iodine, hydroxide or carbonate of alkali metal is adopted to neutralize an iodic acid solution, so that the pH of the iodic acid solution is equal to 7, crystal of the pure iodate can be prepared, and the crystal is washed and dried to obtain the finished product. The purity of the iodate reaches 99.0%, and the yield of the iodate is 85-95% on the basis of iodic acid.

The invention relates to an iodic acid and hydroiodic acid preparation all-in-one machine device, and relates to the technical field of chemical engineering. The iodic acid and hydroiodic acid preparation all-in-one machine device is used for solving the technical problems that the processing efficiency is hot high in the prior art. The iodic acid and hydroiodic acid preparation all-in-one machinedevice comprises an electrooxidation reduction reactor, by adopting the same raw material and the same device, namely, elemental iodine is adopted to simultaneously obtain iodic acid and hydroiodic acid, an oxidation reaction occurs in an oxidizing chamber of the electrooxidation reduction reactor to generate the iodic acid, a reduction reaction occurs in a reduction chamber of the electrooxidation reduction reactor to generate the hydroiodic acid, a reaction endpoint is controlled by an electric potential in the whole process, the preparation purity is high, concentration is high, no dangerous and waste liquid generates, and more environmental protection is achieved.