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79results about How to "Strong ion exchange" patented technology

Biochar mixing type protected horticultural vegetable field soil heavy metal passivant and preparation method thereof

The invention relates to a soil improvement technology and an environment protection technology and particularly discloses a biochar mixing type protected horticultural vegetable field soil heavy metal passivant and a preparation method thereof. The soil heavy metal passivant comprises the following components in percentage by weight: 50 to 60 percent of biochar, 5 to 10 percent of medical stone powder, 5 to 10 percent of diatomite powder, 10 to 20 percent of lignite and 10 to 20 percent of coal ash. The preparation method for the soil heavy metal passivant comprises the following steps of: mixing the medical stone powder which is screened by an 80-mesh sieve, the diatomite powder which is screened by an 80-mesh sieve, the lignite, and the coal ash which is screened by an 80-mesh sieve, uniformly stirring, mixing with biochar which is screened by a 20-mesh sieve, fully stirring, and mixing uniformly to prepare the soil heavy metal passivant. The soil heavy metal passivant is easy to prepare; and the effects of passivating the protected horticultural vegetable field soil heavy metal, and reducing the content of recyclable heavy metal of plant in soil can be achieved under the synergistic effects of all components.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Method for preparing composite meso-porous material from coarse coal gasification slag, and meso-porous material prepared therethrough

ActiveCN107855104ARealize the comprehensive utilization of all componentsImprove physicsOther chemical processesAlkali metal oxides/hydroxidesSlagAcid dissolution
The invention discloses a method for preparing a composite meso-porous material from coarse coal gasification slag. The method comprises the following steps: 1, taking the coarse coal gasification slag, mixing the coarse coal gasification slag with a proper amount of an acid solution to obtain a slurry, and performing an acid dissolution reaction; and 2, carrying out solid-liquid separation on a material obtained after the acid dissolution reaction, and performing washing and drying to obtain the product. The invention also discloses the composite meso-porous material prepared through the method. The carbon/silicon composite meso-porous material is obtained through controlled dissolution under mild conditions by using the high activity of silicon aluminum calcium iron in the coarse coal gasification slag. The material has the advantages of good physical and chemical adsorption performances, good ion exchange performance, simple preparation process, low cost, realization of further preparation of a water purifier from dissolved metal ions, realization of the comprehensive utilization of all components in the coal gasification slag, and realization of changing wastes into valuables.
Owner:鄂尔多斯市慧恒科技有限责任公司

Method for synthesizing zeolite from fine coal gasification slag, and zeolite material prepared therethrough

ActiveCN107855108ASynthesis helpsEasy to handleOther chemical processesCycloneSlag
The invention discloses a method for synthesizing zeolite from fine coal gasification slag, and a zeolite material prepared therethrough. The method comprises the following steps: 1, taking a proper amount of the fine coal gasification slag, and adding water to prepare a fine coal gasification slag slurry with the solid content being 10-30 wt%; 2, fully stirring the slurry prepared in step 1, performing gravity cyclone separation, and collecting the obtained heavy separation product to obtain a silicon-rich composite slurry, wherein the carbon content of a solid phase in the silicon-rich composite slurry is less than 10 wt%; 3, adjusting the solid content of the silicon-rich composite slurry to 5-10 wt%, adding NaOH to make the concentration of the NaOH in the slurry reach 4-10 wt%, and stirring and reacting the slurry at 40-80 DEG C to obtain a precursor; and 4, transferring the precursor into a reaction kettle, sealing the reaction kettle, performing a hydrothermal synthesis reactionat 100-140 DEG C for 4-10 h, and then carrying out solid-liquid separation, washing and drying to obtain the synthesis product. The iron-supported micro-porous zeolite is obtained through the hydrothermal synthesis of the fine coal gasification slag, so the development of the high-added value product from low-carbon and high-silicon ferroaluminum components in the fine coal gasification slag is realized, and wastes are changed into valuables.
Owner:鄂尔多斯市慧恒科技有限责任公司

Long active organic compounded fertilizer and production method

The invention relates to a long-acting organic compound fertilizer and a manufacturing method thereof, which belongs to the manure field. By taking sludge in a municipal sewage treatment plant as main raw material, adding zeolite, urea, ammonium diacid phosphate, potassium chloride and sodium silicate, then being stirred and mixed with the urea, the ammonium diacid phosphate and the potassium chloride after sludge compression, zeolite drying, stirring and mixing, natural air drying or kiln drying and grinding, and spraying the sodium silicate so as to granulate, dry, disinfect and sterilize the mixture, a product is then produced. The long-acting organic compound fertilizer and the manufacturing method solve the problem of land occupation of the sludge in the sewage treatment plant and secondary pollution, and realize the harmless disposal and resource utilization of the sludge. The fertilizer ensures that crops has good growth power, high plants, more grains, stronger lodging resistance and obvious stimulation effect and ensures that the quality of agricultural products is improved. Furthermore, the fertilizer can increase the ability of reserving nutrients in soil, can modify acid or saline alkali sandy soil, can improve soil aggregate structure, can keep fertilizer efficiency and resist crop diseases.
Owner:屈智和 +1

Preparation method of catalytically cracked gasoline hydrodesulfurization catalyst containing nanocrystalline multi-stage duct ZSM-5 molecular sieve

The invention relates to a preparation method of a catalytically cracked gasoline hydrodesulfurization catalyst containing a nanocrystalline multi-stage duct ZSM-5 molecular sieve. The catalytically cracked gasoline hydrodesulfurization catalyst mainly consists of the following components in percentage by weight: 5-30% of active components, 4-9% of an active component auxiliary, 1-5% of a modifying agent and 60-90% of carriers, wherein the active components comprise at least one of Mo and W metal elements; the active component auxiliary comprise at least one of Co and Ni elements; the modifying agent is one of metals La and Ce, or the compounding of the metal La and Ce; the carriers are composite carriers using aluminum oxide and an NCMZ molecular sieve as main bodies. According to the invention, through the unique framework and duct structure of the NCMZ molecular sieve, the advantages of a micropore ZSM-5 molecular sieve and the advantages of mesoporous materials are combined, so that the reaction efficiency is further improved, and increasing product quality is finally realized. The FCC gasoline hydrodesulfurization catalyst disclosed by the invention can enable a reaction to be carried out under more moderate conditions.
Owner:YANSHAN UNIV

Chemical reinforced glass for electronic device and preparation method thereof

ActiveCN107663032AImprove impact resistanceGreat scratch resistanceSurface stressMetallurgy
The invention provides chemical reinforced glass for an electronic device and a preparation method thereof. An ideal compression stress layer depth is obtained at relatively low reinforcing temperature and relatively short reinforcing time. The method comprises the following steps: 1) taking raw materials: greater than or equal to 50 percent and less than or equal to 70 percent of SiO2, greater than or equal to 0 percent and less than or equal to 2 percent of B2O3, greater than or equal to 12 percent and less than or equal to 25 percent of Al2O3, greater than or equal to 11 percent and less than or equal to 15 percent of Na2O, greater than or equal to 0 percent and less than or equal to 5 percent of ZnO, greater than or equal to 2 percent and less than or equal to 5 percent of Li2O, greater than or equal to 0 percent and less than or equal to 5 percent of MgO, greater than or equal to 0 percent and less than or equal to 1 percent of ZrO2, greater than or equal to 1 percent and less than or equal to 4 percent of SnO2 and greater than or equal to 0.67 and less than or equal to 0.97 of (Na2O+Li2O)/(Al2O3+ZrO2+MgO); 2) melting and clarifying and carrying out ion change. The surface compressive stress of the reinforced glass is 882.4MPa to 990.5MPa, the surface stress layer depth is 80.5mu m to 96.3mu m, the Vickers hardness is 658kg/mm<2> to 690kg/mm<2> and the strain point temperature is 550.5 DEG C to 572.2 DEG C.
Owner:CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD

Biocharcoal-based slow release fertilizer and preparation method thereof

The invention discloses biocharcoal-based slow release fertilizer. The biocharcoal-based slow release fertilizer is prepared from biocharcoal and chemical fertilizer with the mass ratio being 20:(5 to10). The biocharcoal-based slow release fertilizer disclosed by the invention has the beneficial effects that agricultural and forest wastes such as straws with wide distribution, large yield and lowcost are adopted as biomass, has rich pore channels, is easily decomposed, is not deteriorated after being absorbed, is wear-resistant, and also has excellent adsorbing and ion-exchange properties, the fertility, the structure and microorganisms and the like of soil can be effectively improved, and the soil quality can be improved; shown from the cumulative released amount of nitrogen of the biocharcoal-based slow release fertilizer in water, the cumulative released amount of the nitrogen in 480 hours is about 80%, i.e., the cumulative released amount of nitrogen nutrients in 20 days is 80%.The invention also discloses a preparation method of the biocharcoal-based slow release fertilizer. The preparation method adopts a hydrothermal method to prepare the biocharcoal-based slow release fertilizer, the technology is manure, the operation is convenient, simple and easy, low cost, less investment and low energy consumption are achieved, and an economic and feasible technical means is provided for large-scale application of the biocharcoal-based slow release fertilizer.
Owner:HUNAN AGRICULTURAL UNIV +1

Soil conditioner with strawberry continuous cropping disease prevention function and preparation method of soil conditioner

The invention relates to a soil conditioner with a strawberry continuous cropping disease prevention function and a preparation method of the soil conditioner. A continuous cropping agent consists of the following eight raw materials by weight: 60-80 parts of shale, 10-15 parts of zeolite, 0.6-1 part of soybean meal, 2-4 parts of rice bran, 0.6-1 part of rice hull powder, 0.2 to 0.6 part of brown sugar, 1-2 parts of enzyme microorganism, and 1-2 parts of a compound chelating microorganism fertilizer. Strain, rice bran, rice hull powder, a compound chelating agent, soybean meal, brown sugar, shale and zeolite are mixed and stirred, then fermentation is carried out under a certain condition, and after fermentation, the obtained powder can be applied to a field or air-dried (or dried at low temperature) for storage, or extruding granulation is conducted on the fermented powder, and the obtained particles are air-dried (or dried at low temperature) for storage. The invention aims to provide a compound continuous cropping agent which can improve the physical and chemical properties and the microflora of soil, activate soil nutrients and effectively inhibit the soil-borne disease of plant to effectively relieve continuous cropping barrier of crops.
Owner:辽宁津大肥业有限公司

Biochar mixing type protected horticultural vegetable field soil heavy metal passivant and preparation method thereof

The invention relates to a soil improvement technology and an environment protection technology and particularly discloses a biochar mixing type protected horticultural vegetable field soil heavy metal passivant and a preparation method thereof. The soil heavy metal passivant comprises the following components in percentage by weight: 50 to 60 percent of biochar, 5 to 10 percent of medical stone powder, 5 to 10 percent of diatomite powder, 10 to 20 percent of lignite and 10 to 20 percent of coal ash. The preparation method for the soil heavy metal passivant comprises the following steps of: mixing the medical stone powder which is screened by an 80-mesh sieve, the diatomite powder which is screened by an 80-mesh sieve, the lignite, and the coal ash which is screened by an 80-mesh sieve, uniformly stirring, mixing with biochar which is screened by a 20-mesh sieve, fully stirring, and mixing uniformly to prepare the soil heavy metal passivant. The soil heavy metal passivant is easy to prepare; and the effects of passivating the protected horticultural vegetable field soil heavy metal, and reducing the content of recyclable heavy metal of plant in soil can be achieved under the synergistic effects of all components.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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