32results about How to "High value-added resource utilization" patented technology

The invention discloses electrolytic manganese slag microcrystalline glass and a preparation method thereof, which relate to microcrystalline glass prepared from industrial wastes and a method thereof. The raw materials of the electrolytic manganese slag microcrystalline glass comprise electrolytic manganese slag, calcium carbonate, quartz sand and magnesium carbonate. The method comprises the following steps: mixing the raw materials evenly; then founding basic glass; molding the basic glass; performing nucleation and crystallization on the basic glass; and annealing and processing the basic glass into a finished product. The electrolytic manganese slag microcrystalline glass has the characteristics of fewer raw material components (only four types), high content of the electrolytic manganese slag (75 to 99.7 percent), simple preparation method, low production energy consumption, environmental protection and the like. The electrolytic manganese slag microcrystalline glass prepared by the method can be widely used as architectural decorative materials.

The invention discloses a method of preparing hierarchical pore ceramsite from red mud and coal ash and belongs to the technical field of solid waste reclamation and environment. The method comprisesthe following steps: uniformly mixing the coal ash, the red mud and agriculture and forestry waste residues, and adding water and uniformly stirring the mixture to obtain mixed mud B; granulating themixed mud B to obtain a ceramsite blank sample C; putting the ceramsite blank sample C at 90-120 DEG C to be treated for 60-180 min and then putting the ceramsite blank sample at 350-450 DEG C to be treated for 30-60 min at a constant temperature to obtain pre-ceramsite; putting the pre-ceramsite at 950-1150 DEG C to be roasted for 20-70 min and then carrying out furnace cooling to obtain hierarchical pore ceramsite D; and adding the hierarchical pore ceramsite D into an alkaline solution, then adding sodium metaaluminate to be uniformly mixed to obtain a ceramsite treatment system, heating the same at a uniform speed till the temperature of the ceramsite treatment system is 80-140 DEG C and treating the same for 6-24 hours, extracting the ceramsite, washing the same to be neutral and drying the ceramsite to obtain the hierarchical pore ceramsite. The hierarchical pore ceramsite has two duct structures: macropores and micropores and has good water absorption, water retaining property and ion exchange function.

The invention relates to an adjusting material for carrying out high temperature activation treatment on electric furnace white slag. The adjusting material comprises the components by weight: 0-55% of converter slag, 40-100% of calcareous material (in terms of CaO) and 0-5% of auxiliary materials. When the adjusting material is in practical use, the converter slag, the calcareous material and the auxiliary materials are mixed according to the above weight proportions to be used as the adjusting material; the adjusting material is ground into fine powder; 15-35% by weight of the adjusting material and 65-85% by weight of the white slag are mixed uniformly; the mixture is calcined, so that chemical reactions occur among components; air cool or water cool are carried out after calcination; and a calcined product is broken and ground to prepare the activated white slag powder. 28 d activity indicator is higher than 85% when Blaine specific surface area is 400-500 m<2> / kg. Mineral composition of the white slag is optimized essentially; gelatinization activity of the white slag is increased; high value-added resource utilization rate of the white slag and steel slag solid wastes is increased; and environment protection is facilitated.

The invention discloses a composite-carrier catalyst for ozone oxidation as well as a preparation method and application of the catalyst, and belongs to the technical fields of water treatment and agricultural waste resource utilization. The composite-carrier catalyst for the ozone oxidation comprises a composite carrier, active components and auxiliary agents; the composite carrier is obtained bymixing the catalyst carrier and pretreated and activated agricultural waste straw, performing granulation and performing carbonization; the active components are Fe and Mn; and the auxiliary agents are Ce and Ti. The composite-carrier catalyst for the ozone oxidation provided by the invention has the characteristics of high catalytic efficiency, environmental friendliness of the active componentsand uneasy dissolution, not only solves the problems of high costs of a catalyst for ozone oxidation and low treatment efficiency of wastewater in the prior art, but also realizes resource utilization of the agricultural waste straw.

The invention relates to an adjusting material for electric furnace white slag thermal refining treatment. The adjusting material comprises the following components in percentage by weight: 25-35% of steel slag, 12-17% of coal cinder, 50-60% of a calcium material (based on CaO) and 0-2% of an auxiliary material, wherein the sum of the components is 100%. The converter steel slag, the coal cinder, the calcium material and a small amount of auxiliary material are mixed to form the adjusting material; and after the adjusting material is mixed with white slag uniformly, chemical reaction happens at a high temperature, so that the mineral composition of the white slag is substantially optimized, the gelatinization activity of the white slag is improved, meanwhile, high additional value recycle rate of solid wastes such as the white slag, steel slag and coal cinder is increased, and the adjusting material is favorable for environmental protection.

The invention provides a method for co-producing glucose and dietary fibers from multiple high-solid enzymes of sweet potato residues through synergetic enzymatic hydrolysis, and aims to provide a coupling integrated technology for co-producing high-concentration glucose and high-protein-content dietary fibers from the multiple high-solid enzymes of the sweet potato residues through synergetic enzymatic hydrolysis. The method comprises the steps of impurity removal and smashing of the sweet potato residues, pre-enzymatic hydrolysis of high solids of the sweet potato residues, liquefaction and sugaring of pre-enzymatic hydrolysate, solid-liquid separation of the enzymatic hydrolysate, preparation of a glucose solution from the enzymatic hydrolysate and preparation of the dietary fibers from enzymatic hydrolysis residues. According to the technical scheme provided by the invention, high-solid enzymatic hydrolysis with the sweet potato residue substrate content of 20 to 28.6 percent can be realized; the substrate conversion rate from the sweet potato residues into the glucose can be over 65 percent, and the high-purity sweet potato residue dietary fibers can be obtained. The method can assist in solving the problems that the deep processing technology for the sweet potato residues is in a low grade, produces single and low-value products, is short in industrial chain and the like, and a technical reference is supplied to the deep processing industries for the sweet potato residues, and even sweet potatoes, in China.

The invention discloses a titanium-based ceramic and a green preparation method thereof. The titanium-based ceramic is prepared through the following raw material components in parts by mass: 50-80 parts of a waste vanadium-titanium denitration catalyst, 3-10 parts of Al2O3, 1-6 parts of ZrO2, 0.2-1.5 parts of Co3O4, 0.5-1.5 parts of TiB2, 8-15 parts of CaO, and 0.5-1.2 parts of a V-element solidsolvent. The titanium-based ceramic integrates the compressive strength and the flexure strength; the compressive strength is 653MPa or more, and the flexure strength is 184MPa or more; the V elementleaching rate is far less than that of the limit value required by national standard; and high added-value resource utilization of the wasted toxic vanadium-titanium denitration catalyst is achieved.

An electrolytic manganese slag glass-ceramic and a preparation method thereof relate to the preparation of glass-ceramics by using industrial waste and the method thereof. The raw material of electrolytic manganese slag glass-ceramics of the present invention is electrolytic manganese slag, calcium carbonate, quartz sand and magnesium carbonate; Chemical treatment, annealing and processing into finished products. The invention has the characteristics of few raw material components (only 4 types), large amount of electrolytic manganese slag (up to 75-99.7%), simple preparation method, low production energy consumption, and environmental protection. The electrolytic manganese slag glass-ceramic of the present invention prepared by the method of the present invention can be widely used as a building decoration material.

Aiming at the dilemma that the degree of resource utilization of rare earth tailings in my country is very low and the value of resource products is not high, the invention proposes to use the tailings as the main raw material to prepare granular rare earth-loaded functional materials. The key technical process mainly includes: (1) preparation of rare earth tailings ceramsite; (2) zeolite process of ceramsite; (3) zeolite ceramsite rare earth loading process. The prepared porous granular rare earth-loaded functional material contains developed pore structure and rare earth functional components, and has the advantages of large specific surface area, strong adsorption capacity, and easy solid-liquid separation.

The invention discloses zolite ceramic prepared by utilizing coal gangue and construction waste and a preparation technology thereof. Construction waste and coal gangue are taken as main raw materials, and technological means such as sintering, hydro-thermal processing and the like are utilized for preparing the zeolite ceramic filter material. The technology comprises two key points: 1, sintering construction waste and coal gangue to form an internally-porous ceramic particle material; and 2, performing alkali hydro-thermal processing, so as to change the surfaces of the ceramic particles into a zeolite structure. The prepared porous biological filter material has a multi-stage pore structure and has the density close to the density of water. The prepared porous biological filter material is applicable to technologies of aeration biological filter tanks, oxidation tanks and the like in field of sewage processing, and also has functions of biofilm colonization, adsorption and removal of heavy metal ions, and the like.

The invention discloses a comprehensive utilization method of Luoyuan red tailings. The method comprises the following steps: performing first classification on mining tailings to obtain ore tailingsand a sandy soil material; performing second classification on processing tailings to obtain stone left overs and a stone powder; performing third classification on the sandy soil material to obtain washed sand and washed mud used as raw materials for foamed ceramics; mixing and crushing the stone left overs and the ore tailings, mixing the crushed materials with the stone powder, crushing the mixed materials, performing magnetic separation and classification on the crushed materials to obtain fine iron ore, washed feldspar and washed soil for producing foamed ceramics or ceramic tiles. According to the method, by means of ordered matching of classification, crushing and magnetic separation, the Luoyuan red processing tailings and the mining tailings are fully utilized, and natural resources of minerals are utilized to the maximum extent.

A method for preparing a magnetic adsorbent by using waste zinc-manganese batteries and biomass disclosed by the invention is characterized in that the electrode materials of waste zinc-manganese batteries are firstly pretreated to prepare a bioleaching solution, and then indirect bioleaching is carried out , and finally carry out hydrothermal carbonization and synthesis to obtain a magnetic adsorbent. Using the filtrate of sulfur oxidizing bacteria and ferrous oxidizing bacteria to extract manganese and zinc metals in waste zinc-manganese batteries, the raw materials are easy to obtain, simple, efficient and environmentally friendly; the waste zinc-manganese batteries and biomass are converted into biologically activated carbon with magnetic adsorption properties, It can realize high value-added resource utilization of waste batteries and waste biomass.

The invention provides a method for preparing high-purity iron oxide with converter dedusting ash using a superconduction high gradient magnetic separation (HGMS) technology. According to the method, the HGMS technology is used for separating the converter dedusting ash so that the iron oxide can be extracted, then the iron oxide is roasted to prepare high-purity iron oxide red, and cyclic utilization of the converter dedusting ash at the outside of a steel mill can be realized; and moreover, the additional value of the iron oxide red is high, large-scale and high-additional-value resource utilization of waste is achieved, iron elements can be enriched to 65% or above, the number reaches 93% or above when the iron elements are converted into Fe2O3, and the recovery rate of the iron elements reaches 95% or above. The method for preparing the high-purity iron oxide with the converter dedusting ash using the superconduction HGMS technology has ultrahigh separation and extraction capacity and ultralow energy consumption (the energy consumption accounts for 1 / 10-1 / 4 that of a conventional magnetic separation method), the effect is good and energy can be saved obviously; and the method is particularly suitable for enrichment, separation and extraction of the iron elements in iron-containing solid powder such as the converter dedusting ash.

The invention relates to the field of catalytic cracking oil slurry treatment, and discloses a method for combined processing of catalytic cracking oil slurry, the method comprising: (1) mixing catalytic cracking oil slurry, amphoteric surfactant and diluent, diluting the obtained The oil slurry is contacted with water in the fiber liquid film contactor, and the fiber liquid film contactor includes a mass transfer space filled with fiber filaments; (2) the material obtained in step (1) is subjected to three-phase separation of oil, water and solid (3) contacting the oil phase obtained in step (2) with hydrogen for hydrogenation treatment; (4) extracting and distilling the hydrogenated product obtained in step (3). The method can continuously and efficiently remove the solid powder in the catalytic cracking oil slurry, and improves the resource utilization rate of the catalytic cracking oil slurry.

The invention discloses a method for comprehensive utilization of Luoyuanhong tailings, which comprises: first classifying the mining tailings to obtain ore tailings and sandy soil materials; second classifying the processed tailings to obtain stone scraps and stone powder material; carry out the third classification of the sand and soil material to obtain washed sand and washed mud for foaming ceramic raw materials; after mixing and crushing stone scraps and ore tailings, they are mixed with stone powder, crushed, magnetically separated and classified Get iron ore concentrate and washed feldspar and washed soil for the production of foamed ceramics or ceramic tiles. In the present invention, through the orderly coordination of means of grading, crushing and magnetic separation, both the Luoyuanhong processing tailings and mining tailings are fully utilized, and mineral natural resources are utilized to the greatest extent.

The invention relates to an adjusting material for carrying out high temperature activation treatment on electric furnace white slag. The adjusting material comprises the components by weight: 0-55% of converter slag, 40-100% of calcareous material (in terms of CaO) and 0-5% of auxiliary materials. When the adjusting material is in practical use, the converter slag, the calcareous material and the auxiliary materials are mixed according to the above weight proportions to be used as the adjusting material; the adjusting material is ground into fine powder; 15-35% by weight of the adjusting material and 65-85% by weight of the white slag are mixed uniformly; the mixture is calcined, so that chemical reactions occur among components; air cool or water cool are carried out after calcination; and a calcined product is broken and ground to prepare the activated white slag powder. 28 d activity indicator is higher than 85% when Blaine specific surface area is 400-500 m<2> / kg. Mineral composition of the white slag is optimized essentially; gelatinization activity of the white slag is increased; high value-added resource utilization rate of the white slag and steel slag solid wastes is increased; and environment protection is facilitated.