63 results about "Copper oxychloride" patented technology

A wood preservative includes injectable particles comprising one or more sparingly soluble copper salts. The copper-based particles are sufficiently insoluble so as to not be easily removed by leaching but are sufficiently soluble to exhibit toxicity to primary organisms primarily responsible for the decay of the wood. Exemplary particles contain for example copper hydroxide, basic copper carbonate, copper carbonate, basic copper sulfates including particularly tribasic copper sulfate, basic copper nitrates, copper oxychlorides, copper borates, basic copper borates, and mixtures thereof. The particles typically have a size distribution in which at least 50% of particles have a diameter smaller than 0.25 μm, 0.2 μm, or 0.15 μm. At least about 20% and even more than 75% of the weight of the particles may be composed of the substantially crystalline copper salt. Wood or a wood product may be impregnated with copper based particles of the invention.

A wood preservative includes injectable particles comprising one or more sparingly soluble copper salts. The copper-based particles are sufficiently insoluble so as to not be easily removed by leaching but are sufficiently soluble to exhibit toxicity to primary organisms primarily responsible for the decay of the wood. Exemplary particles contain for example copper hydroxide, basic copper carbonate, copper carbonate, basic copper sulfates including particularly tribasic copper sulfate, basic copper nitrates, copper oxychlorides, copper borates, basic copper borates, and mixtures thereof. The particles typically have a size distribution in which at least 50% of particles have a diameter smaller than 0.25 μm, 0.2 μm, or 0.15 μm. At least about 20% and even more than 75% of the weight of the particles may be composed of the substantially crystalline copper salt. Wood or a wood product may be impregnated with copper-based particles of the invention.

A method for preserving wood by injecting into the wood a slurry having: particles of a sparingly soluble copper salt, copper hydroxide, or both, wherein the weight average diameter d50 of the particles in the slurry is between 0.1 microns and 0.7 microns and the d98 of the particles in the slurry is less than about 1 micron; a dispersant; and water. The dispersant is anionic or a mix of anionic and non-ionic. Advantageously, less than 20% by weight of the particles have a diameter less than 20 nanometers. Useful copper salts include basic copper carbonate, tri-basic copper sulfate, copper oxychloride, basic copper nitrate, basic copper borate, copper borate, basic copper phosphate, or copper silicate. The slurry most preferably includes copper hydroxide particles. The slurry further advantageously includes at least one organic biocide, wherein at least a portion of the organic biocide is coated on the particles.

A method for producing copper sulphate by using a copper-containing waste solution of a PCB circuit board plant comprises the following steps: removing impurities of the copper-containing waste solution, removing impurities of a cuprammonium waste solution, preparing wet alkaline copper, preparing a slurry from wet alkaline copper and an alkaline copper mother solution or tap water, acidifying, cooling, crystallizing, and purifying. In the method, copper oxychloride is taken as an intermediate, because copper oxychloride is in the state of a particle, copper hydroxide is in the state of a slurry and synthesis of copper oxychloride is under a high-temperature condition, when solid-liquid separation is performed, separation of the copper oxychloride intermediate from impurities, oil stains and the like is relatively thorough. In the subsequent technological flow, influence of impurities on the copper sulphate product quality is reduced, under the circumstance of guaranteeing product quality, the pH value of the acidification terminal point is 1.0-1.5, and the terminal-point acidity is obviously raised compared with an original technology (pH: 0-0.3). By using the method, the wastewater quantity is reduced, product quality is improved, and sulfuric acid consumption is reduced.

The invention discloses application of cupric glutamate or derivatives thereof as feed additive for promoting animal growth; the cupric glutamate which has the advantages of low water solubility, strong acid resistance and high bioavailability is firstly found, the cupric glutamate is used as the feed additive for promoting animal growth and has high safety and antibiosis activity compared with other copper sources, such as copper sulfate, copper oxychloride, glycine copper and the like, the additive amount of the copper ions can reduce 60-80 percent, the production cost is reduced and the environment pollution is reduced, and the toxic and side effect of high copper to the animals is reduced simultaneously.

The invention discloses copper oxychloride particulate matter and a preparation method thereof. The copper oxychloride particulate matter mainly consists of copper oxychloride particulates, wherein the copper oxychloride particulates of which the particle diameters are 60-250 [mu]m are 97% or above of the total mass of the copper oxychloride particulate matter. Preferably, the crystal form structure of the made copper oxychloride particulate matter is stable, and agglomeration is not liable to cause. According to the preparation method provided by the invention, through control of technological parameters in the preparation process of the copper oxychloride, the forming rate of copper oxychloride crystal kernels and the growth rate of crystals can be maintained to an equilibrium point, sothat the copper oxychloride particulate matter with uniform and appropriate size can be directly prepared, the color is consistent, and the copper oxychloride particulate matter has the advantages ofbeing high in product purity, high in copper content and the like.

The invention provides a plant bactericide which comprises a protective agent and a therapeutic agent, wherein the protective agent comprises Daktarin, chlorothalonil, Dasheng, Pennfluid, Antracol, lime sulphur, iprodione, kocide and copper oxychloride and the therapeutic agent comprises Guangkuling, hymexazol, agricultural streptozotion, Qingkuling, kasugamycin and xinjunan. The formula provided by the invention is suitable for treating interference of insect attack and bacteria on most crops in the growing process, and in the formula, the protective agent and the therapeutic agent are integrated particularly, so that the bactericidal function of crops is enhanced while the growth of crops can be further protected. The bactericide is simple in preparation process and easy to implement, and the price of pesticides can be effectively reduced. Farmers can prepare the bactericide personally with direct benefits.

The present invention relates to a method for producing copper oxychloride by using waste liquor produced by etching circuit board. Said method includes the following steps: respectively adding condensation reducting agent into acid and alkaline two waste liquor, respectively stirring them, the described acid waste liquor is the waste liquor containing copper ion and hydrochloric acid, and the described alkaline waste liquor is the waste liquor containing copper ion and ammonia water, respectively filtering said two waste liquors, removing unsoluble substances, respectively obtaining two clear solutions, adding said two clear solutions into reactor to make neutralization reaction, controlling pH value of reaction solution and making it be 4.5-5.5, finally obtaining copper oxychloride crystal.