55results about How to "Relief formation" patented technology

The invention relates to a synthesis method of a titanium-silicon molecular sieve TS-1. The method comprises the steps of: preparing titanium-silicon gel from a titanium source, a silicon source, a template agent and water by a certain mole ratio, and hydrothermally crystallizing the gel in a closed reaction kettle by utilizing the pressure generated by the gel self; and then filtering, washing, drying and roasting, thus obtaining the molecular sieve TS-1. According to the method, the titanium source can be effectively hydrolyzed in the preparation of a precursor, the sedimentation of TiO2 is reduced and avoided even, and Ti is enabled to enter a framework, so that the molecular sieve TS-1 with high activity is prepared. When the molecular sieve TS-1 is used as a catalyst for propylene epoxidation in a pilot experiment, the conversion rate of hydrogen peroxide and the selectivity of epoxy propane are enhanced greatly.

The invention discloses a synergistic limestone desulfuration absorbent. The synergistic limestone desulfuration absorbent comprises the following materials in parts by weight: 30-90 parts of limestone, 1-40 part(s) of dolomite, 1-10 part(s) of magnesium sulfate, 1-6 part(s) of organic polyatomic acid and 1-8 part(s) of organic polyatomic acid salt. The synergistic limestone desulfuration absorbent has the advantages that a desulfuration rate is improved, and when the content of coal sulfur components exceeds a design value by 20%, the desulfuration rate is above 90%; and the energy consumption of a desulfuration system is reduced, and the formation of equipment calcium scales in the desulfuration system is decelerated.

The invention discloses high-strength wood-plastic composite with swelling resistance, moisture resistance and ageing resistance and a preparation method of the wood-plastic composite. The wood-plastic composite comprises raw materials in parts by weight as follows: 15-20 parts of secondary recycled resin, 8-10 parts of chlorinated polyethylene, 50-60 parts of plant fiber, 5-15 parts of inorganic powder, 1-5 parts of a desiccant and 1-5 parts of an auxiliary. The preparation method comprises a plastication process, an extrusion process and a cooling process, firstly, the raw materials weighed in the formula ratio are added to an internal mixer and subjected to plastication for 12-20 min at the temperature of 100-240 DEG C; then the materials well subjected to are fed to a single-screw or twin-screw extruder by a double-wrist or double-cone feeder and subjected to direct extrusion molding at 130-190 DEG C, or the materials well subjected to preplastification are fed to a pelletizer to produce pellets and then conveyed to an extruder for molding; and finally, molded parison is cooled to setting. With adoption of the preparation method, decomposition and carbonization of the raw materials in the plastication process can be inhibited effectively, the hygroscopicity of the raw materials is reduced, equipment corrosion is reduced, and the dimensional stability, the ageing resistance and the strength of the wood-plastic composite are improved.

The invention relates to a synthesis method of a titanium-silicon molecular sieve TS-1. The method comprises the steps of: preparing titanium-silicon gel from a titanium source, a silicon source, a template agent and water by a certain mole ratio, and hydrothermally crystallizing the gel in a closed reaction kettle by utilizing the pressure generated by the gel self; and then filtering, washing, drying and roasting, thus obtaining the molecular sieve TS-1. According to the method, the titanium source can be effectively hydrolyzed in the preparation of a precursor, the sedimentation of TiO2 is reduced and avoided even, and Ti is enabled to enter a framework, so that the molecular sieve TS-1 with high activity is prepared. When the molecular sieve TS-1 is used as a catalyst for propylene epoxidation in a pilot experiment, the conversion rate of hydrogen peroxide and the selectivity of epoxy propane are enhanced greatly.

The invention relates to the field of road engineering, in particular to a concrete overlay material and a preparation method and an application thereof. The concrete overlay material is prepared from the following components in parts by weight: crushed stone, epoxy resin, a curing agent, polyethylene glycol and carbon. The concrete overlay material has the advantages that the high-heat energy storage characteristic of a phase change material is utilized, the concrete overlay material can be used as a temperature-adjusting asphalt concrete thin overlay, the functions of inhibiting ice and melting snow are realized, and the influence to the road pavement structure and road pavement safety by ice and snow hazards can be effectively overcome.

The invention provides an automobile tail gas purification system and a purification method thereof. The automobile tail gas purification system comprises a purification box, a pressure increasing box, a purification liquid circulating device and a liquid level water replenishing device, wherein the purification box is provided with a purification liquid inlet, a waste liquid outlet, a tail gas inlet and a tail gas outlet; the tail gas inlet is lower than the tail gas outlet, the purification box is communicated with the pressure increasing box through micropores, the purification liquid circulating device is communicated with the purification box and the pressure increasing box, and the liquid level water replenishing device is used for replenishing water in the purification box. The tail gas inlet is arranged on an automobile exhaust pipe opening, the purification liquid circulating device is communicated with a water source, a purification liquid is added into the purification box, an automobile starts, tail gas enters the purification box, the purification liquid circulating device is opened, the purification liquid is conveyed to the pressure increasing box and then is sprayed in the purification box, the sprayed liquid wraps particulate matters in the tail gas and then falls back in the purification liquid, the purified tail gas is discharged from the tail gas outlet, and finally, the purification treatment is finished. The purification system provided by the invention has the advantages that the structure is simple, the cost is low, the purification operation is convenient, and the application prospect is good.

The invention discloses novel medical application of Nifuroxazide, namely the novel application of the Nifuroxazide as a medicine for treating psoriasis. The Nifuroxazide disclosed by the invention adopts peritoneal injection for treatment; the result shows that the Nifuroxazide can obviously relieve the formation of local scale of psoriasis sample skin lesion, erythema and incrassation induced byimiquimod, and inhibits the phosphorylation of stat3 in skin lesion tissues and the generation of TNF-alpha in serum. The Nifuroxazide is used to treat skin keratinocytes to form HaCaT cells; the result shows that the Nifuroxazide can significantly inhibit the proliferation of the HaCaT cells and inhibit the phosphorylation of HaCaT cell stat3. Therefore, the Nifuroxazide is used for treating thepsoriasis, and can be used for effectively inhibiting the proliferation of skin keratinocytes and relieving the inflammation degree of skin; in addition, a Nifuroxazide preparation has the advantagesof safety, no toxicity and convenience in use.

The invention discloses a single-crystal ternary positive electrode material. The chemical formula of the single-crystal ternary positive electrode material is LiNi(1-x-y-z)CoxMnyMzO2@Ai, wherein M isat least two of Zr, Al, Yb, Sr, La, Y, Ti, Sn, Mo, Si or W; wherein the A is one or two of H3BO3, B2O3, Li2B4O7, Li3PO4, Li2HPO3, LiH2PO4 and H3PO4, and the B is one or two of Li2B4O7, Li3PO4, Li2HPO3, LiH2PO4 and H3PO4; x is larger than 0 and smaller than or equal to 0.2, y is larger than 0 and smaller than or equal to 0.35, z is larger than 0 and smaller than or equal to 0.006, and i is largerthan or equal to 0.0008 and smaller than or equal to 0.008. The single-crystal ternary positive electrode material has the advantages of high power, high cycle, high voltage, high capacity, high energy density, high safety, low price, capability of realizing industrial production and the like.

The invention relates to a preparation method and application of a mixed oxide-doped nano copper-cobalt alloy catalyst. According to the catalyst, CuCo serves as an active component and mixed oxide serves as a carrier, wherein Cu accounts for 5-25% in the catalyst in percentage by mass, Co accounts for 5-25% in the catalyst in percentage by mass, Al2O3 accounts for 13-25% in the catalyst in percentage by mass, and one of SiO2, ZrO2, CeO2 or TiO2 accounts for the balance. The mixed oxide-doped nano copper-cobalt alloy catalyst is obtained by calcinating and reducing a hydroxide-doped hydrotalcite-like precursor. Since silicon, zirconium, cerium and titanium ions cannot enter a hydrotalcite-like laminate, the dispersion of copper and cobalt on the surface is improved, the dispersion degree of active components is increased, and the formation of a hotspot in a reaction process of synthesizing low-carbon alcohol is relieved. The catalyst is relatively high in low-carbon alcohol selectivity and low-temperature activity, easy to operate, and low in cost and is applicable to industrial production.

The invention discloses a method for making polygonatum odoratum yoghurt, rootstalks of polygonatum odoratum which is a liliaceous plant and milk powder are taken as main raw materials, and the steps such as pretreatment of the raw materials, mixing, homogenization, sterilization, inoculation, filling, culture, inspection and the like are adopted for preparation. By adopting the method, the original sweet and thick flavor of the polygonatum odoratum and various effective ingredients can be completely retained, the polygonatum odoratum yoghurt can be eaten conveniently, and the polygonatum odoratum yoghurt has better efficacy and health care effects of lowering blood sugar, reducing blood fat, reliving the atherosclerotic plaque formation and the like, thereby not only enriching market, but also providing a new way for developing abundant agricultural resources in China.

The invention discloses a single crystal ternary positive electrode material, the chemical formula of the single crystal ternary positive electrode material is LiNi (1‑x‑y‑z) co x mn y m z o 2 @A i ; said M is at least two of Zr, Al, Yb, Sr, La, Y, Ti, Sn, Mo, Si or W; said A is H 3 BO 3 , B 2 o 3 , Li 2 B 4 o 7 , Li 3 PO 4 , Li 2 HPO 3 , LiH 2 PO 4 or H 3 PO 4 One or two of them; where 0<x≤0.2, 0<y≤0.35, 0<z≤0.006, 0.0008≤i≤0.008. The single crystal ternary anode material of the invention has the advantages of high power, high cycle, high voltage, high capacity, high energy density, high safety, low price and industrial production.