32results about How to "Good activity" patented technology

The invention provides a broad spectrum heavy metal activity deactivator preparation method. The present invention relates to a soil conditioning agent preparation method, which comprises the following steps: (A) taking humic acid-rich peat, digest compost or a forest soil humus layer, and carrying out screening to provide a spare use; (B) adding the humic acid-rich material to HCl or HNO3 to soak, and stirring 2-3 times; (C) filtering the soaked material with a bamboo drying pad, washing 2-3 times with clear water, and carrying out air drying to a moisture content of less than 5%; (D) sequentially adding ZnSO4.7H2O, sodium silicate and sodium selenite to the material obtained from the step (C), carrying out aging on the mixed material for 2-3 days and uniformly mixing; and (E) adding limestone powder to the material obtained from the step (D), and completely and uniformly mixing to prepare the broad spectrum heavy metal deactivator. With the combination inhibitor prepared by the preparation method, activities of soil heavy metals can be significantly inactivated, the heavy metals can be inhibited from entering the food chain, and risks on human health by the heavy metals can be reduced.

The invention discloses a carbon-free ladle brick and a preparation method thereof. The carbon-free ladle brick is prepared by using bauxite chamotte, a corundum raw material, magnesium oxide and alumina micro powder as main raw materials, adding iron oxide, a magnesium chloride solution, sodium hexametaphosphate and canary dextrin, mixing the above-mentioned materials by using special procedures, storing an obtained mixed for 30 min, carrying out compression molding and drying the mixture at a temperature of 200 DEG C for 24 h. According to the invention, iron oxide and alumina micro powder are enabled to exist in gaps between aggregate and powder and form hercynite with a low thermal expansion coefficient at a medium-high temperature, and no excess iron oxide enters into a matrix, which enables the ladle brick to have good high temperature stability and anti-stripping performance; therefore, the problem that molten steel carburetting caused by high temperature melting loss of a refractory brick influences smelting quality is overcome, and the prepared carbon-free ladle brick has excellent performances of high strength, washing resistance, a long service life, etc.

The invention discloses a rhodium complex as well as a preparation method and application thereof. The rhodium complex is monochloride o-mono-methoxy benzaldehyde acetal 4-methyl-3-thiosemicarbazide-pentamethylcyclopetadienyl-rhodium (III), and the rhodium complex can serve as the application for preparing drugs for treating cancers. The structural formula of the rhodium complex is shown in the Specification.

The invention discloses a method for separating and purifying oligomeric proanthocyanidins. The method comprises the following steps: carrying out water precipitation filtration and microfiltration treatment of a proanthocyanidin crude extract liquid, carrying out chromatography adsorption by a specific macroporous resin, and eluting by an ethanol solution to obtain a proanthocyanidin-containing eluate; and carrying out nanofiltration membrane concentration of the eluate, and drying to obtain a product.

The invention discloses a hydrocracking catalyst for distillate oil, which comprises alumina, ZSM-23 elite and Y-shape elite modified by cation exchange with VIB and VIII groups metal as carriers, and active metal constituents from VIB and VIII groups; adjusting acid distribution of Y-shape elite special the B and L acids. This invention has well open-loop, hydrogenation and isomerization activity, increase hexadecane value in maximum limit, and ensures high diesel yield.

The invention discloses a PCR pre-packing reagent. The PCR pre-packing reagent is a lyophilized reagent, the lyophilized reagent is composed of a PCR reaction mixed solution and a cryoprotectant, andthe weight of the cryoprotectant is 6.25-30% (w/v) of the volume of the PCR reaction mixed solution. The PCR pre-packing reagent simplifies the PCR operation step and improves the experimental efficiency; and the PCR pre-packing reagent also has a high amplification activity and a high quality stability, and can be stored at room temperature for a long term to reduce the storage and transportationcost of the reagent. The invention also provides a reaction tube pre-loaded with the PCR reagent, the reaction chamber of the reaction tube is filled with the PCR pre-packing reagent, an identification code for distinguishing different reaction tubes is arranged on the surface of the reaction tube, and the identification code does not block lights transmitting out of the reaction tube from the reaction chamber. Distinguishing of the different reaction tubes with the identification code is beneficial to achieve automatic matching of PCR detection results with sample and index information, so the automatic operation of PCR detection experiments is realized.

The invention discloses an organic metal rhodium compound and a preparation method and application thereof. The organic metal rhodium compound is chlorine-(1E,6E)-1,7-bis(3,4-dimethoxyphenyl)-4-(p-methylamino phenyl vinyl)-1,6-heptadiene-2,5-diketone-pentamethyl cyclopentadienyl rhodium (III). The organic metal rhodium compound can be applied to preparation of a drug for treating cancer and resisting bacteria. The structural formula of the organic metal rhodium compound is shown in the specification.

The invention discloses a processing method for electroplating pretreatment. The method comprises the following steps of step 1, preparing a metamorphic loading agent; step 2, pre-activating a metal piece: activating the to-be-treated metal piece at the temperature of 210-250 DEG C for 20-30 minutes, then cooling the metal piece to 150 DEG C at the speed of 2 DEG C/min, and finally quenching the metal piece to room temperature by water; and step 3, treating the metamorphic loading agent. According to the method, the metal piece is firstly activated, and the activating treatment adopts 210 DEG C high-temperature, variable-temperature and water quenching treatment, so that the surface active performance of the metal piece is improved, the porosity of the surface structure of the metal piece is improved, and the subsequent modification treatment on the metal piece by the modification loading agent is facilitated.

The invention relates to a method for preparing ketone compounds. A reaction is carried out at normal pressure in a two-stage fixed bed reactor, a first-stage catalyst is CeO2, a reaction temperatureis 300-450 DEG C, a raw material is acetic acid, and a feeding mass space velocity of the raw material is 0.1-1.0 h<-1>. Acetone is generated after the acetic acid is subjected to a ketonization reaction in the first stage, and then a second-stage reaction is carried out. A second-stage catalyst is CeO2-SnO2, a reaction temperature is 350-450 DEG C, a raw material is ethanol, and a feeding mass space velocity of the raw material is 0.1-1.0 h<-1>. 2-pentanone and 4-heptanone are prepared through dehydrogenation and an Aldol condensation reaction in the second stage. The method is characterizedin that CeO2 and a cerium-based composite oxide are used as catalysts, and the catalyst is simple to prepare and has good stability. The ketone compounds are generated by efficiently catalyzing aceticacid and ethanol through a two-stage method, the conversion rate is up to 35% (based on the total carbon number), and the total selectivity of the ketone compounds can reach 99%, wherein the selectivity of 2-pentanone is 85%, and the selectivity of 4-heptanone is 15%. In the process, acetic acid and ethanol are taken as raw materials, the raw material source is wide, and a potential industrial application prospect is achieved.

The invention relates to a doped carbon material, a platinum-carbon catalyst and a preparation method and application thereof. In the XPS analysis of the carbon material, a characteristic peak exists at 135.8 +/-0.5 ev. The platinum-carbon catalyst prepared from the carbon material has excellent catalytic performance and carbon corrosion resistance when being used for catalyzing oxygen reduction reaction.

The invention provides an extraction method of crocodile polypeptide, and belongs to the technical field of extraction of biological samples. The extraction method comprises the steps of performing heating for softening on crocodile tissue, then performing high-temperature constant-temperature hydrolysis, and then concentrating and drying hydrolysates to obtain crocodile polypeptide extract powder. The extraction method has the advantages of being simple to operate, high in extraction efficiency and high in extract activity.

The present invention discloses a preparation method of catalyst for preparing transition metal carbide, its precursor is formed from carbon material and transition metal compound. Said invention adopts the impregnation or mechanical mixing method to load the transmition metal on the carbon material, and the weight percentage of the transition metal compound loaded quantity is in the range of 1-200%, and the obtained sample can be heated to 500-1000 deg.C in heating rate of 1-20 deg.C/min under the atmosphere of hydrogen gas, then thermostatic reduced for 0.1-10 hr, and reduced to room temp. and passivated by using 1% of oxygen gas under the atmosphere of hydrogen gas or reduced to room temp. under the inert-atmosphere so as to obtain the correspondent transion metal carbide or transition metal carbide loaded on the carbon material.

The invention relates to a use of a compound in preparation of drugs for treatment and/or prevention of drug moderate lung cancer and/or drug-resistant lung cancer, and a composition of the compound,specifically, a use of the compound represented by a structural formula I and/or a pharmaceutically acceptable salt thereof in preparation of the drugs for treatment and/or prevention of lung cancer,wherein R1 and R6 are hydroxyl respectively, and R2, R3, R4 and R5 are selected independently from one of hydrogen, alkyl and hydroxyl; preferably, R2, R3, R4 and R5 are selected independently from hydrogen or alkyl; and more preferably, the alkyl is selected from one of methyl, ethyl and propyl.

The invention provides a plant component moistening type anti-decoloration lipstick as well as a preparation method and a use method of the plant component moistening type anti-decoloration lipstick. The plant component moistening type anti-decoloration lipstick is prepared from the following raw materials in parts by weight: 10 to 20 parts of ethylhexyl palmitate, 5 to 10 parts of polydimethylsiloxane, 1 to 6 parts of pure ozocerite, 2 to 5 parts of polydimethylsiloxane cross-linked polymer, 1 to 4 parts of modified mica, 1 to 3 parts of microcrystalline wax, 1 to 2 parts of polyethylene, 1 to 3 parts of isododecane and 1 to 2 parts of bis-PEG-15 polydimethylsiloxane/IPDI copolymer. The lipstick disclosed by the invention has the effects of moistening, decoloring prevention and cup sticking prevention, the use effect of the lipstick can be improved by proportioning and selecting the raw materials, the modified mica is added into the lipstick, the active performance of the mica is enhanced by active treatment of the mica, and then thermal contraction and cold contraction treatment is adopted, so that the shrinkage degree of the mica is improved, and the shrinkage efficiency of a mica sheet layer is improved.

The invention relates to a preparation method of a sulfur-phosphorus-doped carbon material and a product and application thereof, and the method comprises the following steps: contacting a sulfur-doped carbon material with a phosphorus source, and carrying out high-temperature treatment in inert gas to obtain the sulfur-phosphorus-doped carbon material. The platinum-carbon catalyst prepared by taking the sulfur-phosphorus doped carbon material as a carrier has excellent catalytic performance.

The invention relates to a phosphorus-boron-doped carbon material, a platinum-carbon catalyst and a preparation method and application of the phosphorus-boron-doped carbon material and the platinum-carbon catalyst, and the phosphorus-boron-doped carbon material has a characteristic peak at 190.5 +/-0.5 eV in a B1s spectrum peak of XPS analysis of the phosphorus-boron-doped carbon material. A platinum-carbon catalyst taking the phosphorus-boron doped carbon material as a carrier has good mass ratio activity, ECSA and excellent ECSA stability.