46 results about "Cupric hydroxide" patented technology

The invention relates to a urea resin adhesive capable of removing formaldehyde, comprising the following components in part by weight: 100 parts of modified urea resin, 1-5 parts of nano titania, 2-8 parts of tourmaline powder and 0.1-0.5 part of cupric hydroxide. The urea resin adhesive can effectively remove the formaldehyde, minimize the release amount of the formaldehyde when in use, adsorb the off-flavor in the air and has certain health care function.

The invention relates to a method for producing copper chloride hydroxide and blue vitriod by using cupriferous etching wastewater; the method comprises the following steps: acidic copper chloride etching wastewater and alkaline copper chloride etching wastewater are neutralized and crystallized to get acidic copper chloride crystal under the condition of strictly controlling filling liquid and the Ph range of a reaction kettle, and then pumped and filtrated, and centrifugated; part of the obtained alkaline copper chloride crystal is dried to obtain finished products while the other is added with NaOH solution for alkali conversion to obtain copper oxide, and then is acidulated by sulphuric acid, crystallized, washed, centrifugated, and dried to obtain blue vitriod products. The method for producing blue vitriod by directly using sulphuric acid-oxyful etching wastewater includes the following steps: sulphuric acid-oxyful etching wastewater and composition brass wasterwater in a PCB manufacture are blended together and added with NaOH to form cupric hydroxide precipitation which filtrated, washed, and then acidulated by sulphuric acid to obtain copper sulphate solution; after the copper sulphate solution is cooled, crystallized, centrifugated and dried, and the blue vitriod is obtained.

The invention discloses a method for preparing leaf-shaped porous copper nanosheets, which comprises the following steps: 1. Dissolving polyethylene glycol and copper chloride in deionized water; 2. Adding ammonia water to the mixed solution; 3. Adding copper ammonia The complex solution is placed in a water bath and sodium hydroxide solution is added; 4. The copper oxide nano-sheets are subjected to hydrogen thermal reduction treatment to obtain leaf-shaped porous copper nano-sheets. The present invention combines copper ions with ammonia to form a copper-ammonia complex solution, adding sodium hydroxide solution to generate copper hydroxide nanowires, which are oxidized in a water bath to form copper oxide, and form copper oxide nanosheets under the adsorption of ammonia. Thermal reduction treatment is used to obtain porous leaf-shaped copper nanosheets without changing the sheet shape. The obtained leaf-shaped porous copper nanosheets have a small thickness and a large sheet diameter, and have good dispersion and particle size. The advantages of uniformity and high cleanliness can be used as nano-metal conductive fillers for flexible printed circuits.

A mixed-metallic phosphate compound is disclosed, which contains as the main metal copper in the divalent oxidation state in a proportion of at least 90.0 at-% and one or more doping metals in a total proportion of the doping metals of at least 0.01 to at most 10.0 at-%, wherein the doping metals are selected from the group consisting of the elements of the first and second main groups and the eighth subgroup of the elements of the periodic table, Al, Sn, Si, Bi, Cr, Mo, Mn, and the lanthanides. The stated metal proportions relate to the total amount of the metals in the mixed-metallic phosphate compound. The mixed-metallic compound has a phosphate content expressed as P2O5 in the range of 10 to 60 wt-%. Also disclosed is a method for producing the mixed-metallic phosphate compound and the use thereof.

The special-purpose fungicide for controlling several diseases in middle and later stage of tobacco plant growth is made up by using cupric hydroxide, Saikuzuo, Carboxymethyl cellulose, petroleum sodium carbonate, propanetriol, diatomite, isopropanol and chaku as raw material through a certain preparation process. Its finished product is a 55% wettable powder which can be used for curing wildfine, rust, angular leaf spot, powdery mildew, anthracnose and white rust, etc. Its preparation process is simple, does not produce waste water, waste residue and waste gas, and features low cost, broad spectrum, high efficiency and low-toxicity.

The invention discloses a method for preparing nano-copper hydroxide from acidic copper chloride etching waste liquid. Adding auxiliary agent and water to an appropriate amount of acidic copper chloride etching waste liquid, mixing evenly and adding a precipitant to adjust the pH value of the solution Then stir and react and age, filter and wash the filter cake with water until there is no chloride ion, dry the filter cake to constant weight to obtain the product nano-copper hydroxide; adjust the pH of the filtrate to neutral with concentrated hydrochloric acid, evaporate, crystallize, and dry To constant weight to obtain by-product sodium chloride or potassium chloride. The invention uses acidic copper chloride etching waste liquid as raw material and adopts a simple process to obtain the product with a purity greater than 99.0%, a chloride content (Cl)≤400ppm, a fibrous appearance and an average diameter of 40-100nm in one step. , Nano-copper hydroxide products with an average length between 1 and 2.5 μm. The recovery rate of copper in the method of the invention can reach more than 99.9%.