48results about How to "Broaden the way of resource utilization" patented technology

The invention discloses a fluidized bed combustion ash and high titanium slag compounded stable pavement base material. The fluidized bed combustion ash and high titanium slag compounded stable pavement base material is formed by mixing 30-90wt% of fluidized bed combustion ash with 10-70wt% of high titanium slag. The fluidized bed combustion ash, the high titanium slag and water are stirred and mixed, and the obtained mixture is molded and maintained to make a fluidized bed combustion ash and high titanium slag compounded stable pavement base. The compounded stable pavement base material completely utilizes difficult-treatment and high-discharge-amount industrial wastes comprising the fluidized bed combustion ash and the high titanium slag, contains no lime or fly ash, and has better performances than traditional lime-fly ash stable pavement base material; and the compounded stable pavement base material has the advantages of low cost, no consumption of natural resources, simple and easy preparation method, suitableness for being used in areas short of traditional road engineering materials, substantial economic benefit, wide market prospect and strong practicality.

The invention discloses a lignin-based foam concrete foaming agent, and a preparation method and application thereof. The preparation method comprises the following steps: adding lignin solid powder to water, preparing into a water solution of which the mass fraction is 30-50%; adjusting the pH value to 9-11 by using an alkaline regulator; heating to 60-70 DEG C; adding an alpha-amino acids compound and aldehyde substances and reacting for 1-3 hours, so as to obtain amination carboxyl alkali lignin; heating to 70-90 DEG C, adding a sulfonic acid monomer and an initiator and reacting for 3-4 hours; then adding a surfactant and a foam stabilizer to the product, evenly stirring and cooling, so as to obtain a liquid product. The foaming agent prepared by the method has strong foaming capability and high stability, generates fine and uniform foams, and is low in price. Furthermore, the path of resource utilization of papermaking black liquor is also expanded by the foaming agent; the pollution of the black liquor to the environment is reduced; and therefore the lignin-based foam concrete foaming agent has significant economic and social value.

The invention provides a sintering ore and a production method thereof. The production method comprises the following steps of: mixing the following materials in parts by weight to form a mixture: 55-60 parts of ilmenite powder containing vanadium, 1-3 parts of vanadium extraction tailings, 3-5 parts of blast furnace gas ash, 4-7 parts of limestone, 5-7 parts of coke powder, 9-23 parts of Australian ores and 4-6 parts of active lime; and putting the mixture into a sintering machine, and sintering the mixture at a sintering ignition temperature of 1050-1200 DEG C to prepare the sintering ore. The sintering ore consists of the following components in percentage by weight: not less than 49.5% of TFe, 5-8% of SiO2, 9-12% of CaO, 2-4% of MgO, 5-8% of TiO2 and 0-1% of V2O5, and the alkalinity of the sintering ore is 1.8-2.1. The production method has the advantage that the sintering ore can be prepared by effectively using solid wastes namely the vanadium extraction tailings during the production of vanadium products on the basis of ensuring that the grade of the sintering ore is not lowered.

The invention discloses a bacillus thuringiensis microbial insecticide, a preparation method and a special culture medium thereof. The culture medium is prepared by mixing sludge, mineral salts and a defoamer and sterilizing. In the preparation method, bacillus thuringiensis is put in the culture medium and is subjected to fermentation culture so as to prepare the bacillus thuringiensis microbialinsecticide. By the method of the invention, the production cost of the microbial insecticide is reduced, the additional value of products is high, and the defect of generating stink in the process of fermentation is overcome.

The invention discloses a method for treating nickel-iron slag and a ceramic brick. The method comprises the following steps: (1) mixing nickel-iron slag, bentonite, silica and red mud molten slag toobtain a mixed material; (2) finely grinding the mixed materials to obtain a powder material; (3) performing spraying pelletizing treatment on the powder material to obtain a granular material; (4) performing molding treatment on the granular material to obtain raw material plates; (5) performing drying treatment and sintering on the raw material plates sequentially, thereby obtaining ceramic bricks. By adopting the method, high-quality ceramic bricks can be prepared from metallurgy wastes, namely nickel-iron slag, a novel way for resource utilization of the nickel-iron slag is developed, andremarkable economic benefits and environment benefits are made.

The invention belongs to the technical field of pre-mixed mortar modifiers, and discloses lignin grafted polyoxyethylene ether, a special modifier based on the lignin grafted polyoxyethylene ether andused for environmentally-friendly lignin-based machine blasting mortar, a preparation method of the lignin grafted polyoxyethylene ether, and applications of the special modifier in machine blastingmortar. The preparation method of the lignin grafted polyoxyethylene ether comprises: (1) heating allyl polyoxyethylene ether, and carrying out a ring-opening reaction on the heated allyl polyoxyethylene ether and epichlorohydrin under the catalysis of Lewis acid to obtain an intermediate; and (2) adding alkaline lignin solid powder to water to prepare an aqueous solution, adjusting the pH value to 11-13 with an alkaline regulator, heating the intermediate obtained in the step (1), adding the heated intermediate to the aqueous solution, and carrying out a reaction to obtain the product. The invention further provides a special modifier based on the lignin grafted polyoxyethylene ether and used for lignin-based machine blasting mortar. With the special modifier of the present invention, theinitial consistency of the mortar mixture is 95+/-5 mm, the initial bulk density is more than 1900 kg/m<3>, the water retention rate is more than 92%, the 2 h consistency loss rate is less than 30%,and the coagulation time is 5-6 h.

The invention belongs to the field of vitrified brick binders, and specifically provides a gypsum based vitrified brick binder and a preparation method thereof. The binder is prepared from following raw materials in parts by weight: 350 to 400 parts of alpha gypsum, 600 to 650 parts of graded sand, 1.5 to 3 parts of water retainer, 12 to 18 parts of redispersible latex powder, 0.15 to 0.3 part ofretarder, 5 to 8 parts of wood fibers, 5 to 10 parts of water repellent, and 0.8 to 1 part of starch ether. Alpha gypsum is taken as the main cementing material to prepare the vitrified brick binder,which has the characteristics of excellent binding performance, durability, stability, waterproof property, good construction performance, and shrinkage resistance. The shortages of a cement based binder such as bad stability, bad durability, and the like, are overcome. Moreover, the application range of gypsum is enlarged. The prepared vitrified brick binder has a sound absorbing property, a moisture absorbing performance, a flame retardant property, and a thermal insulation property.

The invention discloses a preparation method and application of a nitrogen-doped sludge compost visible light photocatalytic material. Urea is used as a sludge aerobic composting product for supplementing a nitrogen source; under certain pressure and temperature conditions, a nitrogen-doped carbon nano porous material composed of C, O, N, Al, Si, Fe, Mg, Zn, Ti and other elements is synthesized through a hydrothermal carbonization method, and a method for degrading organic pollutants through visible light in an oxalic acid system through hydrothermal carbonization of sludge is constructed. According to the method, the sludge aerobic composting product is converted into an environmental remediation material, so that the resource utilization of the sludge is realized. The method is low in cost, simple to operate and easy to popularize, and an efficient visible light catalytic material is provided for organic wastewater treatment.

The present invention discloses a thermal-insulation building thin layer aqueous coating material and a preparation method thereof, wherein the coating material comprises the following raw materials by weight: 16-30 parts of an acrylic emulsion, 10-20 parts of a filler, 20-26 parts of silicon-manganese residue, 1-5 parts of kaolin, 5-18 parts of titanium dioxide powder, 1-4 parts of dodecanol lipoid, 0.1-0.2 part of 2-methyl-4-isothiazolin-4-one, 0.1-0.4 part of 2-n-octyl-4-isothiazolin-3-one, 0.1-0.4 part of BASF A10, 0.1-0.5 part of sodium polyacrylate, 8-15 parts of sodium tripolyphosphate, and 10-20 parts of water. The preparation method comprises: taking samples according to the weight part ratio, taking the filler, the silicon-manganese residue, the kaolin, the titanium dioxide powder and the water, mixing, adding the sodium tripolyphosphate, stirring to achieve a uniform state, adding the acrylic emulsion and the dodecanol lipoid, stirring to achieve a uniform state, adding the remaining raw materials, and carrying out ball milling to obtain the finished product. According to the present invention, characteristics of good performance, low cost, energy saving, and emission reducing can be achieved.

The invention belongs to the technical field of preparation of controllable low-strength materials, and discloses a controllable low-strength material prepared from steel slag desulfurization byproducts and construction waste soil and a preparation method thereof. The material is prepared from the following raw materials in parts by mass: 40-65 parts of building residue soil, 8-20 parts of a steel slag desulfurization byproduct, 1-5 parts of cement, 6-13 parts of fly ash, 5-10 parts of slag, 0.5-5 parts of an alkali activator, 0.2-2 parts of a dispersing agent and 0.05-1 part of a thickening agent. According to the controllable low-strength material, the construction waste is used for replacing part of cement to serve as a cementing material, resource utilization of the construction waste is achieved, cement resources are saved, harm of construction engineering waste to the environment is reduced, the prepared controllable low-strength material is used for backfilling soil, cyclic utilization of the construction resources is achieved, meanwhile, the problem that a large number of steel slag desulfurization byproducts are stacked to pollute the environment is solved, and good economic benefits and social values are achieved.

The invention discloses an alkali-activated cementing material prepared from waste glass fiber reinforced plastics. The alkali-activated cementing material is made of raw materials including, by weight, 55-70 parts of waste glass fiber reinforced plastics, 2-5 parts of steel slag, 10-25 parts of zeolite, 5-12 parts of lime and 3-7 parts of sodium hydroxide. The alkali-activated cementing material has the advantages that the alkali-activated cementing material is excellent in mechanical property, the 1-day compressive strength of the alkali-activated cementing material under the optimal ratio conditions is higher than 45 MPa, and the 3-day compressive strength of the alkali-activated cementing material under the optimal ratio conditions is higher than 60 MPa.