37results about How to "Expand the scope of resource utilization" patented technology

The invention provides a method for preparing bacterial fermented black soybean tempeh. The method uses black soybeans as raw materials, and is prepared by crushing, drying, swelling, steaming, inoculating bacterial fermentation, koji washing, seasoning and sterilization, wherein the bacterial Fermentation is carried out by using a composite bacterial starter composed of Bacillus subtilis RH3519 and Micrococcus luteus to obtain the bacterial fermented black soybean tempeh. The black soybean tempeh provided by the invention has many kinds of amino acids, is rich in nutrition, has a fresh and fragrant taste, and has a sense of hierarchy. The prepared black soybean tempeh does not contain pathogenic bacteria and harmful bacteria, and has high safety performance.

The invention is applicable to the technical field of crude oil exploitation, and provides a phenolic resin-acrylamide composite microsphere and its preparation method and application. The preparation method includes the following steps: placing the emulsifier in white oil for stirring and mixing to obtain an oil phase ; Dissolve acrylamide, phenolic resin, potassium persulfate, and N,N'-methylenebisacrylamide in water, and add hydrochloric acid to adjust the pH to obtain a water phase; under a protective atmosphere, add the water phase to the oil phase for After the reaction, azobisisobutylimidazoline hydrochloride is added for reaction to obtain the phenolic resin-acrylamide composite microspheres. In the present invention, the phenolic resin-acrylamide microspheres are prepared through the self-condensation reaction of the phenolic resin, the self-polymerization reaction of the acrylamide and the crosslinking reaction of the phenolic resin and the acrylamide. In addition, the phenolic resin-acrylamide composite microspheres prepared by the secondary initiation method of the present invention have a "core-shell structure", so they have better thermal stability and swelling performance.

The invention provides a compound fermented fruit wine and a preparation method thereof. The fruit wine is characterized in that cherry tomato juice and pomelo juice used as main raw materials and potassium metabisulfite, pectinase and wine yeast used as auxiliary materials are subjected to sterilization, pectinase enzymolysis, concentration, primary fermentation, secondary fermentation and filtration to obtain a fermentation clear solution; and red date juice is added into the fermentation clear solution for blending and clarification, thus obtaining the compound fermented fruit wine. The preparation method provided by the invention comprises the following steps: respectively smashing cherry tomatoes and pomelos, mixing, and performing potassium metabisulfite sterilization treatment on the mixed juice; after sterilization, performing pectinase treatment, subsequently concentrating the juice until the soluble solid content is 18-22%, and inoculating with the yeast to perform primary fermentation and secondary fermentation; and adding the red date juice into the fermentation clear solution, blending, and clarifying to obtain the fruit wine. The fermented fruit wine provided by the invention has a mellow and fruity taste, contains balanced nutrient contents and has multiple health care effects.

The invention discloses exclusive bacteria and a technology for removing organic sulfur in high sulfur coal mine through the exclusive bacteria. The exclusive bacteria have a class name of Bacillus subtilis Retech Organosulfur-I, are preserved in the China general microbiological culture collection center in the microbiology institute with the address of No. 3, Beichen West Road, Chaoyang District, Beijing, China on the collection date of May 28, 2015, and has a preservation number of CGMCC No. 10933. The bacillus can degrade the organic sulfur in the coal mine under acidic and aerobic conditions, and through combination of the bacillus and the high efficiency desulfurization mixed strain Retech TS-I, inorganic sulfur is removed and effective total sulfur removal of high sulfur coal mine is realized. Compared with the conventional physical and chemical methods, the technology has the advantages of mild conditions, low cost and no harmful gas emission, and has a wide application prospect in the field of coal mine desulfurization.

The invention provides a caragana fabr. plant bark extract which is prepared by taking caragana fabr. plant bark as a raw material and performing extraction through ethyl acetate as a solvent. Pharmacological experiments prove that the extract is remarkable in antifungal effect and has potential clinical use value. After a supercritical CO2 extraction method is adopted to perform preliminary extraction on caragana fabr. plant bark, residue of the caragana fabr. plant bark is extracted through an organic solvent, and not only are the problems that a conventional organic solvent extraction method is low in efficiency and a poisonous solvent needs to be used are solved, but also useful components in the bark can be extracted and utilized to the largest extent.

The invention relates to a selective bioleaching process of a high-sulphur / copper ratio secondary copper sulphide ore. In the process, microorganisms are utilized to leach the high-S / Cu ratio low-grade secondary copper sulphide ore, and the oxidation-reduction potential in the leaching process is controlled through the measures of regulating the pH, the dripping intensity, the fallow system, the air permeability, the breeding of dominant species, and the like so as to realize the selective leaching of the secondary copper sulphide ore. The process has short flow, simple equipment, low investment, low cost, no pollution, high recovery rate and adjustable production scale, can treat low-grade copper ore resources which cannot be treated by using the traditional selecting and smelting process, the resource utilization range is enlarged, and the comprehensive recovery level of copper metal is improved.

The invention relates to a bioleaching method-uranium leaching from fungus. The method comprises the following steps of: using chemical reagents or fermenting low-price carbon source straws to generate fungus of organic acids of citric acid, oxalic acid, malic acid and lactic acid; and leaching uranium out from uranium tailings, tailing residues, uranium barren rocks or uranium ores by utilizing the fungus (1),or fermentation liquor (2) of the fungus, or a fungus mixed fermentation liquor (3), or by adding chemical reagents, such as sulfuric acid and hydrochloric acid to the fungus (1), or the fermentation liquor (2) of the fungus, or the fungus-mixed fermentation liquor (3). The invention has the advantages of convenient material obtainment, low cost, simple and convenient processing steps environmentally-friendly performance, energy saving and the like.

The invention discloses a method for synergistic treatment and recycling of metallurgical solid waste and urban waste incineration fly ash, comprising the following steps: (1) synergistically removing ammonia nitrogen in metallurgical solid waste: mixing metallurgical solid waste, waste incineration fly ash and water Put into a closed reaction kettle and stir to remove ammonia nitrogen, and the ammonia produced by the reaction is used to prepare nitrogen fertilizer or ammonia water; (2) remove chlorine ions in the solution: mix gas O 2 +O 3 Pass in the reaction kettle, because the synergistic effect of metal ion in the solution, remove chloride ion fast; (3) the organic pollutant in the catalytic degradation system: utilize the metal oxide that step (2) reacts to generate as catalyst, add oxidation reagent, Catalytic degradation of organic pollutants; (4) solid-liquid separation, filter residue and filtrate reuse. The invention forms the harmless treatment of solid waste and the recycling of fully closed-loop resources.

The invention relates to a hydrogen-supplying additive for directional removal of sulfur in high-sulfur coking coal blending and coking, which consists of 45-60wt% regulator and 40-55wt% primary additive, and the regulator is composed of one or more The high volatile coal obtained by pretreatment has a particle size of ≤2mm, an active component content of ≥70wt%, and a volatile content of V daf ≥30wt%, Sulfur S t,d ≤0.7wt%, Ash A d ≤7wt% coal powder component, the primary additive is composed of 10~30wt% waste lubricating oil and / or lubricating base oil, 20~40wt% silicone oil, 5~25wt% anionic emulsifier and 5~25wt% water liquid. Adding the hydrogen-supplying additive to high-sulfur coking coal and other coking coal blending coal blending for coking can realize the directional removal of sulfur in the coking process under the premise of ensuring coke quality, and achieve rational and efficient use of high-sulfur coking coal resources. The purpose of reducing the sulfur content of coke.

The invention relates to a one-step copper smelting technology and a device thereof. The interior of a furnace body is divided into three zones, namely a smelting zone, a blowing zone and a refining zone, by a retaining wall; and two rows of spray guns which are arranged in a staggered manner and have an included angle with a vertical line are arranged at the bottoms of the zones; return dust is mixed and then added into mixed copper concentrate and a solvent through a charging opening of the smelting zone, oxygen-enriched air is sprayed through the spray guns to carry out self-heating smelting, to generate copper matte; the spray guns in the blowing zone spray oxygen-enriched air so as to blow copper matte into crude copper and slag; the spray guns in the refining zone supply oxygen-enriched air for oxidization, and supply natural gas as a reductant for reduction, and the generated anode copper with high purity is interruptedly discharged form a copper discharging opening, so that the low-altitude pollution problem caused by SO2 can be solved, the operation environment can be greatly improved, the utilization rate of sulfur and heat can be obviously increased, and further the economic benefits can be increased further; in addition, the invention provides a one-step copper smelting technology which is more advanced, shorter in flow, lower in investment, lower in comprehensive energy consumption, higher in recovery rate, and better in comprehensive utilization in comparison with the existing continuous copper smelting technology.

The invention provides a process for stage-by-stage biological dump leaching desulfurization of a high-sulfur-content coal mine. By stage-by-stage biological dump leaching removal of inorganic sulfur and organic sulfur, the process comprises the following steps: dump making, acid balancing, inorganic sulfur removal, neutralization of leachate and organic sulfur removal. The method can fulfill the aim of effectively removing sulfur from the high-sulfur-content coal mine. Compared with conventional physical and chemical methods, the method has the advantages of mild condition, low cost, zero discharge of harmful gas and the like, and has a wide application prospect in the field of coal mine desulfurization.

A process for biological desulfurization of high-sulfur coal mines using exclusive desulfurization mixed bacteria, which includes: crushing the ore to -25mm to build a heap, the height of the heap is 8-10m, and burying temperature and gas composition sensing devices during the heap; Carry out spraying operation, the spraying intensity is 10~15L / (m2 h), the spraying liquid contains 107~108cfu / mL exclusive desulfurization mixed bacteria CGMCC NO.8336, and the redox potential of the spraying liquid is greater than 700mV ( SCE), according to the spraying system of spraying for 7 days and resting for 5 days or spraying for 7 days and resting for 7 days, the temperature in the pile is controlled at 45-60°C, and the pH value of the leaching system is 1.5-1.8. The process is short, simple in equipment, low in investment, low in cost, and non-polluting. The production scale can be large or small. It can process high-sulfur coal resources that cannot be processed by traditional dressing and smelting processes. It can expand the scope of resource utilization and improve the comprehensiveness of coal resources. recovery level.