75results about How to "Change adsorption" patented technology

The present invention discloses cigarette with tobacco encircled with two, one inner and one outer, layers of cigarette paper. The inner layer of cigarette paper contains inorganic stuffing 20-40 wt%, combustion assistant 6-10 wt% and essence 12-18 wt%; and the outer layer of cigarette paper contains inorganic stuffing 25-35 wt% and combustion assistant 5-10 wt%. The said inorganic stuffing is calcium carbonate, magnesium hydroxide, magnesia, trihydroxyl aluminum or their mixture; the combustion assistant is the mixture of potassium citrate and sodium citrate with weight ratio between potassium ion and sodium ion of 2-4; and the essence is one of menthyl palmitate, vanillin, menthyl carbonate and beta-carotene. The present invention can reduce the side flow fume of cigarette, lower tar and reduce fragrance loss.

The invention discloses a preparation method and an adsorption method of a Ni<2+> adsorbent. The method comprises the following steps: (1) with tetraethoxysilane as a silicon source and triblock copolymer (P123, EO20PO70EO20) as a template agent, synthesizing a silica-based mesoporous material SBA-15, and modifying the inner surface of the silica-based mesoporous material SBA-15 with 3-aminopropyl triethoxy silane (APTES) through an alkyl coupling method to obtain an amino functionalized silica-based mesoporous material NH2-SBA-15; (2) grafting amino acid onto NH2-SBA-15 by a post-transplantation method to obtain the amino acid modified silica-based mesoporous material, namely, the adsorbent; (3) regulating the pH value of the adsorbent to 3-5 by virtue of a water solution containing Ni<2+>, and feeding the adsorbent to adsorb Ni<2+> in a water body, wherein the mass ratio of the adsorbent to Ni<2+> in the water body is 5:1 to 8:1, the adsorption temperature is 20-30 DEG.C, and the adsorption time is 10-30 minutes. The adsorbent preparation method is high in operability and good in reproducibility, the obtained amino acid modified silica-based mesoporous material has a good removal effect for heavy metal ions, Ni<2+>, in a water body, the equilibrium adsorption capacity of the adsorbent reaches up to 60mg.g<-1> above, and thus the actual application value of the adsorbent is good.

The invention discloses a purifying method of epoxypropane. In a fixed bed reaction device, liquid-phase epoxypropane containing aldehyde impurities enter a reaction bed layer of the fixed bed reaction device from bottom to top, a modified zealite sieve adsorbs the aldehyde impurities in epoxypropane at the temperature of 5-60 DEG C and the pressure intensity of 0.3-10.0 Mpa, and therefore purified epoxypropane is obtained; the modified zealite sieve adsorbing the aldehyde impurities recovers aldehyde substances after being purged by inert gas at high temperature so as to restore the adsorption performance. The method is a purifying method of epoxypropane containing the aldehyde impurities with granularity of 20-200 ppm; by means of the adsorption effect of the modified zealite sieve, the method can purify epoxypropane containing the aldehyde impurities with granularity of 20-200 ppm into an epoxypropane product containing aldehydes with granularity smaller than 10 ppm.

The invention discloses a method for preparing adsorbent by using bottom mud of Dian Lake and application thereof, and belongs to the technical field of preparation of heavy metal adsorbents. The method comprises the following steps: soaking the bottom mud by distilled water, repeatedly washing and drying the bottom mud, adding a glutaraldehyde solution into the bottom mud to serve as an activator, adding the bottom mud into a polydimethyl diallylammonium chloride solution, putting in a water bath to carry out heating reflux, pouring the supernate and carrying out acidizing by hydrochloric acid, filtering and washing to neutral and drying to obtain initial samples, putting the samples in an electric furnace and carrying out high-temperature carbonization by taking vapor as protection gas, obtaining carbonized samples after cooling, repeatedly washing the samples to remove the impurities in the carbonized products until washing to neutral (pH>6.5), carrying out drying, grinding after cooling, and screening to obtain the samples according with adsorption. The method is simple in operation conditions, extremely high in adsorbent productivity; through combining the physical activation method and the chemical activation method, the activation effect is relatively good, the performance of the adsorbent is improved and the adsorption value of manganese is greater than 19mg / g.

The bionic mechanical reptile consists of one head module and one tail module without autokinetic motion function and basic trunk modules with one rotating freedom. The present invention adopts automatic passive sucker adsorption, multiple sensor fusion, and central mode generator motion control algorithm. The present invention has the advantages of capacity of crawling in vertical and inclined wall of different materials, capacity of crossing obstacle and face-to-face converting, etc.

The invention discloses a cigarette filter tip additive removing aldehydes in the cigarette mainstream smoke and a preparation method and application thereof. The cigarette filter tip additive is a compound material composed of tobacco material particles, carbon material and adhesive material in an adhered manner. The cigarette filter tip additive added into a cigarette filter tip is capable of reducing the aldehydes in the cigarette mainstream smoke effectively and selectively, and the cigarette taste is not influenced; the preparation method of the cigarette filter tip additive is easy and fast to implement, the cost is low, and the industrial production can be met.

The invention relates to a method for synergistically converting carbon dioxide through plasma and a photocatalyst, and belongs to the field of comprehensive utilization of carbon dioxide. The method mainly comprises the following steps: adding 0.01 g of a photocatalyst into a plasma catalysis device with a plasma power supply power of 60W, introducing CO2 at a flow rate of 50 mL / min, and carrying out plasma discharge reaction for 10 minutes to reduce CO2 into CO. The method has the advantages of being simple in process, easy and convenient to operate, low in cost and beneficial to industrial production.

The invention discloses a self-permeating type soil heavy metal repair agent and a preparation method thereof, and belongs to the technical field of repair agent preparation. According to the self-permeating type soil heavy metal repair agent and the preparation method thereof, organic matter is mixed with a base material of organic acid, the promoting property of the repair agent on growth and development of plants is effectively improved, physical properties of repaired soil are improved, activities of microorganisms and soil organisms are promoted, nutrient elements in the soil are promotedto be decomposed, and meanwhile, air permeability, permeability and adsorbability of the soil are changed; by addition of mineral improvers such as zeolite, peat, charcoal, weathered coal and the like, on one hand, reaction performance such as adsorption, ion exchange and the like of heavy metal elements is improved, heavy metal pollutants such as cadmium, chromium, lead and the like in soil canbe cured and passivated, bio-availability of the heavy metal pollutants and mobility in soil are reduced, risks that the pollutants are absorbed by crops and transferred to food chains are reduced, and on the other hand, physical and chemical properties of the soil are improved.

The invention provides a device and method for transforming physical characteristics of a coal seam through downhole heat injection, and relates to coal mining technologies. According to the device and method for transforming the physical characteristics of the coal seam through downhole heat injection, the technical problem that rock burst or outburst of coal and gas easily occurs during coal roadway tunneling is solved. According to the device and method for transforming the physical characteristics of the coal seam through downhole heat injection, a coal seam heating system is composed of acoal mine neutral water purifier-softener, a high pressure water pump, an electric heater, a heat injection pipeline and a heat injection drilling hole; water is injected into the electric heater through the high pressure water pump after being processed through the purifying-softener, the water is heated by the electric heater in the high-pressure state, and the generated superheated water is injected into the coal seam along a hole sealing pipe of the heat injection pipeline and the heat injection drilling hole; after water enters the coal seam, part of water is converted into water vapor along with reduction of pressure, and the superheated water and the water vapor is subjected to seepage along cracks of the coal seam and heat the coal seam; and the water after heat is released flowsinto a pumping and mining drilling hole and is discharged from the coal seam. After the coal seam is heated for a period of time, the physical characteristics such as adsorption, the strength and thespontaneous combustion point of coal can be changed in a short time, and rock burst or outburst of coal and gas during coal roadway tunneling is effectively prevented.

The invention relates to a wall-climbing robot and a working method thereof. The wall-climbing robot comprises a body, an electromagnet arranged at the bottom of the body, rolling wheels used for driving the body to move, and a controller suitable for controlling the electromagnet to be attracted to the surface of a magnetizer and controlling the rolling wheels to rotate through a rolling wheel driving module, so that the wall-climbing robot can realize wall climbing action. According to the wall-climbing robot, the total load after loading of objects is calculated firstly, then the working current of the electromagnet is determined according to the total load, then a climbing surface is subjected to roughness detection, a distance sensor is selectively started, and therefore the robot works more stably, and energy waste is avoided.

The invention discloses the preparation and adsorption method of Ni2+ adsorbent, which comprises the following steps: (1) using tetraethyl orthosilicate as silicon source and three-block copolymer (P123, EO20PO70EO20) as template to synthesize silicon-based media Pore ​​material SBA-15, and then modified 3-aminopropyltriethoxysilane (APTES) to the inner surface of silicon-based mesoporous material SBA-15 by alkyl coupling method to obtain amino-functionalized silicon-based mesoporous Material NH2‑SBA‑15; (2) Amino acids were grafted onto NH2‑SBA‑15 by the post-grafting method to obtain silicon-based mesoporous materials modified by amino acids, that is, adsorbents; (3) Ni2+-containing aqueous solution, adjusted When the pH value reaches 3~5, put in the adsorbent to absorb Ni2+ in the water body, the mass ratio of the adsorbent to the Ni2+ in the water body is 5:1~8:1, the adsorption temperature is 20~30°C, and the adsorption time is 10~30 min. The preparation method of the adsorbent of the present invention has strong operability and good reproducibility, and the obtained amino acid-modified silicon-based mesoporous material has a good removal effect on heavy metal ions Ni2+ in water, and the equilibrium adsorption capacity reaches 60 mg·g-1 Above, the practical application value is good.

The invention relates to a selective hydrogenation catalyst for C5 cracking and belongs to the technology field of hydrogenation catalysts. In order to meet the urgent need of the selective hydrogenation catalysts for the C5 cracking, the invention provides a catalyst for selective hydrogenation in the C5 cracking, which contains the following components in the given mass percentages: Ni 10-35%, La 0.5-3%, Ag 0.3-3% and aluminum oxide carrier 59-89.2%, calculated on basis of the total mass of the catalyst. The catalyst can also contain K and / or Sr or Pb. The catalyst is used for selective hydrogenation in the C5 cracking as well as hydrogenation in the C5 cracking and excellent in conversion rate, selectivity and stability.

The invention provides a multi-direction flexible manipulator. The multi-direction flexible manipulator comprises at least one adsorption assembly for generating adsorption force and at least two direction control assemblies. The adjacent direction control assemblies are movably connected; the adsorption assemblies and the direction control assemblies are connected; each direction control assemblycomprises at least two first pipes, and first fluids are arranged in the first pipes; and the first fluids in the adjacent first pipes are different in volume. According to the multi-direction flexible manipulator, through the structure that the adsorption assemblies and the direction control assemblies are combined, objects can be efficiently grasped, meanwhile, multiple degrees of freedom are achieved, multi-direction adjusting can be achieved, and the multi-direction flexible manipulator has the advantages that the structure is simple, and operation is convenient.