9 results about "Zinc products" patented technology

The invention discloses a method for preparing 6N-grade high-purity zinc through twice vacuum distillation based on a uniform temperature field. The method comprises the following steps: pretreatment; first-stage distillation: putting the zinc ingot subjected to vacuum drying into a crucible of a vacuum distillation furnace, mounting a plurality of stages of condensation collecting trays on the top of the crucible in an overlapping manner, and then performing high-vacuum pumping, heating and heat preservation; second-stage distillation: after the heat preservation of the first-stage distillation is finished, heating and heat preservation are continued under high vacuum; a plurality of samples are respectively obtained from the multistage condensation collecting disc, and the samples with the zinc content not lower than 99.9999% are collected, namely the 6N-grade high-purity zinc product. According to the method, zinc ingots with the purity of 99.99%-99.995% are used as raw materials, a conventional vacuum distillation furnace is used as distillation equipment, multiple stages of condensation collecting plates are mounted on the top of a crucible in an up-and-down overlapping manner, a novel two-stage distillation process is developed in a matched manner, key parameters such as the vacuum degree, the heating temperature, the heating rate and the heat preservation time are accurately controlled, and the high-purity zinc ingot is obtained. And a 6N-grade high-purity zinc product is successfully prepared.

The invention discloses a preparation method and application of hydrolyzed soybean meal peptide-enriched zinc. The preparation method comprises the following steps: crushing peeled soybean meal, adding water, adjusting the pH value to be neutral, and adding protease for hydrolysis; wherein the adding proportion of the protease is alpha-galactosidase accounting for 0.08%-0.1% of the weight of the soybean meal, papain accounting for 0.15%-0.2% of the weight of the soybean meal, neutral protease accounting for 0.15%-0.2% of the weight of the soybean meal and flavor enzyme accounting for 0.05%-0.1% of the weight of the soybean meal, enzyme inactivation treatment is carried out after complete hydrolysis, then the pH value of the system is adjusted to 4-6, soluble zinc salt is added, and the hydrolyzed soybean meal peptide-enriched zinc is obtained after reaction. The compound enzyme is used for hydrolysis, so that the hydrolysis efficiency is greatly improved, the content of acid-soluble protein is increased, the acid-soluble protein is chelated with a zinc source, an optimized hydrolyzed peptide-enriched zinc product is finally obtained, and the problem of low acid-soluble protein content of the fermented soybean meal at present is solved.

The utility model relates to the technical field of molten metal processing equipment, and provides a molten zinc cleanliness detector, which comprises a molten zinc tank used for accommodating molten zinc, and a detector for detecting the cleanliness of the molten zinc, the rotating core shaft is rotationally arranged in the molten zinc tank, and a detection element is arranged on the rotating core shaft and used for detecting the particle concentration and the electric conductivity of impurities in the molten zinc; and the surface slag scraping assembly is arranged on the rotating mandrel and provided with a scraping part, and the scraping part is used for scraping impurities on the surface of the liquid zinc after being driven by the rotating mandrel to rotate. By means of the technical scheme, the rotating mandrel is integrated with the detection and slag scraping functions, and real-time detection and dynamic cleaning of the cleanliness of the zinc liquid are achieved. The technical problems that in the prior art, during zinc liquid treatment, it is difficult to directly observe impurities in zinc liquid manually, real-time and accurate control over the cleanliness of the zinc liquid is difficult to achieve, and therefore the zinc product quality and the production efficiency are affected are solved.

The application provides a device and method for converting zinc-containing dust sludge into high-value-added products by using Joule heat, relates to the technical field of zinc-containing dust sludge treatment, and aims to solve the problems of low treatment efficiency and poor product purity of traditional zinc-containing dust sludge treatment. By using the Joule heat method, the zinc in the zinc-containing dust sludge is removed, and metal iron and zinc products are simultaneously prepared by adjusting parameters such as voltage, current and reaction time. The process has high zinc removal efficiency, and the obtained metal products have excellent purity. Moreover, the process has the advantages of short time consumption, simple process, higher efficiency and environmental protection compared with traditional methods, and can realize high-value resource recycling of the zinc-containing dust sludge.

The invention discloses a method for preparing 5N zinc by recovering waste zinc through combination of microbial adsorption and electrodeposition, and relates to the technical field of industrial wastewater treatment. According to the technical scheme, the method comprises the following steps: separating microbial strains from the zinc-containing industrial wastewater, and carrying out stress domestication to obtain high-selectivity adsorption bacteria so as to enrich zinc ions; microwave-assisted in-situ purification and electro-deposition coprocessing are realized through the nested reactor; the adsorption and electro-deposition process parameters are dynamically optimized by means of a multi-parameter self-adaptive regulation and control system; purifying a zinc product by adopting an electrolytic refining and zone melting coupling process; and recovering zinc resources from the microbial residues to prepare the bio-organic fertilizer. The method does not need the steps of genetic engineering strain modification and acid elution, reduces the loss of zinc ions, improves the purity of the electrodeposition raw material, stably prepares 5N-grade high-purity zinc, realizes resource utilization of microbial residues, forms a resource circulation closed loop, has both environmental protection benefits and economic benefits, and is suitable for high-valued treatment of zinc-containing industrial wastewater.

This disclosure pertains to a process and circuit for producing enhanced manganese-zinc filter cake compositions, and more specifically to a wash process and circuit that produces manganese concentrations of 36-45 wt. % and zinc concentrations of 15-17 wt. % while lowering chloride content to below 3 wt. %. The process and circuit involve sequential washing, drying, repulping, and dewatering of polymetallic filter cakes derived from saline feedstocks, facilitating effective downstream recovery of refined manganese and zinc products.

This disclosure pertains to a process and circuit for producing enhanced manganese-zinc filter cake compositions, and more specifically to a wash process and circuit that produces manganese concentrations of 36-45 wt. % and zinc concentrations of 15-17 wt. % while lowering chloride content to below 3 wt. %. The process and circuit involve sequential washing, drying, repulping, and dewatering of polymetallic filter cakes derived from saline feedstocks, facilitating effective downstream recovery of refined manganese and zinc products.

The application is suitable for the technical field of metal smelting, and provides a reverberatory combustion chamber based on zinc product processing, which solves the problem that the exhaust mechanism is easily blocked because of the many impurities in the furnace body and the easy blockage of the heat exchanger when zinc products react in the reverberatory. The reverberatory combustion chamber comprises a reverberatory combustion main body, the reverberatory combustion main body comprises a combustion seat, and a combustion cavity is arranged in the combustion seat. A dust removal combustion combination part is arranged in the combustion cavity, and the dust removal combustion combination part comprises a combination part driving element, a combination combustion assembly fixedly connected with the combination driving element, a combination combustion assembly for injecting combustion-supporting gas into the combustion cavity, and a combination dust removal assembly. The combination part driving element, the combination combustion assembly and the combination dust removal assembly are arranged in the application, the combination combustion assembly is driven to move by the rotation of the combination combustion assembly, the contact area between the combination dust removal assembly and the dust generated during combustion is increased, the dust removal efficiency is improved, and the blockage of the device is avoided.

This invention discloses an anti-aging aluminum killed deep-drawing electro-galvanized product and its production method. It employs a low-carbon chemical composition design to meet the quality requirements of anti-aging aluminum killed deep-drawing electro-galvanized DC04 products. It can manufacture high-strength, low-cost, high-surface-quality anti-aging aluminum killed deep-drawing electro-galvanized DC04 products with processing performance meeting automotive component requirements, without the need for adding precious metals such as Ti and Nb. This is achieved by controlling the appropriate mass percentages of carbon and manganese and the matching relationship of nitrogen, supplemented by a suitable process flow. The product exhibits stable performance, high r-value, high elongation, and no tensile strain marks. It also solves the technical problems of traditional processes, such as long yield plateaus, narrow process windows, difficulty in controlling the solid solution C content, and large strength fluctuations. Furthermore, it overcomes the defect of tensile strain marks appearing during stamping and forming. Simultaneously, it improves the pass rate of high-grade outer sheet stamping and is easy to promote and apply industrially.