33results about How to "Craft is easy to get" patented technology

The invention relates to a preparation method of boehmite, particularly a preparation method of ultralow-sodium boehmite. In the preparation process, aluminum hydroxide is used as the raw material. The preparation method is characterized by comprising the following steps: adding water into the raw material aluminum hydroxide to obtain a pulp, and carrying out hydrothermal treatment, wherein in the hydrothermal treatment process, boehmite and the like are added as seed crystals to control the granular form of the boehmite, and acid or acidic electrolyte is added to enable the pulp to be weakly acidic, thereby further reducing the sodium content in the boehmite; and filtering, washing and drying to obtain the boehmite. The method provided by the invention has the advantages of simple production technique, wide material source, low production cost and the like, and is an ideal method for preparing ultralow-sodium boehmite and aluminum oxide.

The invention discloses an improved method for preparing superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using a hydrothermal process and belongs to the technical field of preparation of inorganic chemical materials. The improved method for preparing the superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using the hydrothermal process takes calcium sulphate dihydrate as the raw material and comprises the following steps: firstly activating and roasting at the low temperature to prepare active calcium sulfate hemihydrates, subsequently doping, acidizing, hydrating and drying to prepare a quick-soluble calcium sulfate hemihydrates precursor with the structure defects; then adding the precursor into a saturated calcium sulphate liquid containing a chaotropic agent and a polar solvent, carrying out hydrothermal reaction at 100-200 DEG C for 2-20 minutes, cooling, filtering, washing and drying to prepare superfine high length-diameter-ratio calcium sulfate hemihydrate crystal whiskers with diameter of 0.005-10 microns, length of 10-5000 microns, length-diameter-ratio of 100-10000, and main content of greater than 95%; then mixing the calcium sulfate hemihydrates crystal whiskers with a trace solvent, roasting at 600-800 DEG C for 1-6 hours, cooling, filtering, washing and drying to prepare the superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers with appearance which is as same as that of the calcium sulfate hemihydrates crystal whiskers and main content of greater than 95wt%. The improved method for preparing the superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using the hydrothermal process is rapid and simple in process and low in costs; and the prepared superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers can be used as reinforcement materials.

The invention relates to a traditional Chinese preparation for treating fatty liver and process for preparation, characterized by that, the constituent percentage by weight of the raw material are, alisol 12-30%, radix salvia miltiorrhiza 10-25%, haw 12-30%, cassia seed 10-25%, prepared fleece-flower root 5-20%, bupleurum root 5-20%. And the making process comprises the steps of, (1) extracting by ethanol backflow, (2) combination of extract, filtering, depression reclaiming, condensation into clear plaster, (3) watering and immersing, vacuum drying, (4) filling starch into plaster powder, blending, then filling ethanol to obtain the finished product. Clinical application of the invention has proved its substantial curative effect and no side effect.

The invention discloses a white-leg shrimp compound feed with partial fish meal replaced with corn protein powder. Metered by the total weight of the feed, the white-leg shrimp compound feed comprises the following components in percentage by weight: 20-26% of white fish meal, 10-13% of soybean meal, 4-10% of peanut meal, 4-7% of yeast, 5-10% of corn protein powder, 7-11% of meat meal, 0.5-1.5% of squid liver paste, 26-31% of flour, 0-2% of rice bran and the like. The invention simultaneously discloses a preparation method and application of the white-leg shrimp compound feed. The corn protein powder is prepared by the steps of: mixing corn steep liquor obtained from the corn starch production with waste liquid generated after the production of lysine and glutamic acid according to a certain proportion, and refining through the processes of enzymolysis, concentration, drying and the like. The use of the corn protein powder is not only beneficial to environmental protection but also beneficial to the reduction of fish meal consumption. In the invention, the used raw materials are easy to obtain, the production process is simple and the quality is stable.

The invention discloses moisture-proof phenolic molding plastic prepared from cardanol-modified thermoplastic phenolic resin, solid melamine resin, hydrophobic cellulose, active mineral filler, a urotropin curing agent, a curing accelerator and a mold release. The moisture-proof phenolic molding plastic has better moisture-proofness and heat resistance. The phenolic molding plastic is prepared by taking the cardanol-modified thermoplastic phenolic resin and the solid melamine resin as binders, the hydrophobic cellulose and the active mineral powder as filler and urotropin as a curing agent and matching with the curing accelerator, so that the moisture-proof phenolic molding plastic has better moisture-proofness as comparison with universal phenolic molding plastic; in addition, the production process is simple, and the production cost is relatively low.

The invention provides a special catalyst for removing hydrogen sulfide through selective catalytic oxidation and a preparation method for the special catalyst, and belongs to the technical field of catalyst. A catalyst DXY-1 comprises the following components in percentage by mass: 25 percent of titantium oxide, 15 percent of aluminum oxide, 10 percent of iron oxide, 8 percent of boehmite powder, 5 percent of ferric citrate ammonium, 30 percent of silicon oxide, 5 percent of triamine citrate, 1 percent of sodium aluminate and 1 percent of aluminum sulfate; and A catalyst DXY-2 comprises the following components in percentage by mass: 32 percent of titanium oxide, 18 percent of aluminum oxide, 5 percent of palladium oxide, 3 percent of boehmite powder, 10 percent of ferric citrate ammonium, 25 percent of silicon oxide, 1 percent of lemon chrome, 1 percent of triamine citrate, 3 percent of sodium silicate and 2 percent of aluminum sulfate. The invention further provides a preparation method for catalysts DXY-1 and DXY-2. The catalyst provided by the invention is high in selection, gives priority to hydrogen sulfide removal, is wide in adaption, can be suitable for gas desulfuration with smallest hydrogen sulfide content being 3000ppm, and biggest hydrogen sulfide content being 100000ppm, and has relatively high catalytic efficiency.

The invention discloses a preparation method of traditional Chinese medicine body lotion. The raw materials are: deionized water, sericin, burnet, windproof, stearyl alcohol, scorpion, angelica, pearl hydrolyzate, wild ginseng, glycerol, benzene Oxyethyl alcohol, sodium lauryl sulfate, glucosamine phosphate, cucumber extract and essence; overcome skin discomfort and allergic reactions caused by simple use of chemical or physical sunscreens; product quality is stable and can quickly penetrate into the inner layer of the skin , has good stability and safety; promotes the absorption of nutrients, promotes skin metabolism, has a moisturizing effect and strengthens the water retention capacity of the skin's moisturizing layer, makes the skin naturally white, smooth and tender, mild, safe and non-irritating to the skin; use The effect is remarkable, and the synergistic effect of each component can regulate the skin's acid-base balance, improve skin immunity, thoroughly improve skin quality, and nourish and moisturize the skin.

The invention discloses a dilute sulfuric acid and graphene oxide co-doped modified titanium dioxide composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding tetrabutyl titanate into ethanol to form a solution A, (2) preparing an ethanol-sulfuric acid solution to form a solution B, dropwise adding the solution B into thesolution A, and uniformly stirring to obtain a mixed solution, (3) reacting at constant temperature to obtain slurry, (4) centrifugally separating the slurry, and washing, drying and grinding to obtain powder, (5) calcining to obtain sulfuric acid-titanium dioxide, (6) preparing a graphene oxide dispersion liquid, (7) adding sulfuric acid-titanium dioxide into the graphene oxide dispersion liquidfor a reaction to form a suspension liquid, (8) carrying out constant-temperature reaction on the suspension to obtain a crude product, and (9) washing and drying the crude product to obtain the composite material. The preparation method is simple, low in cost and suitable for large-scale production. The prepared composite material is high in purity, can efficiently degrade tetracycline hydrochloride, and has good application value in the aspect of environmental pollution remediation.