46results about How to "Simple granulation process" patented technology

The invention discloses a zinc-containing compound fertilizer and a preparation method thereof, belonging to the technical field of compound fertilizers. The compound fertilizer is prepared by mixing 10-50 weight parts of monoammonium phosphate, 9-30 weight parts of potassium chloride, phosphorus and potassium fertilizer granules prepared by granulating 5-45 weight parts of ammonium chloride and 20-40 weight parts of urea through an amino acid method, and 5-20 weight parts of zinc-containing master batch particles, wherein the source of the zinc-containing master batch particles is prepared by performing high tower granulation on 30-50 weight parts of urea, 10-65 weight parts of ammonium chloride and 5-25 weight parts of zinc sulfate. According to the compound fertilizer, the zinc sulfate is coated by the urea and ammonium chloride and is physically isolated by phosphorus, so that a chemical reaction between phosphorus and zinc is avoided. Meanwhile, a ratio of zinc to the nitrogen is scientifically prepared, the compound fertilizer is easily absorbed by crops compared with a singly applied zinc fertilizer, the two kinds of particles respectively adopt different granulation methods, the allocation principle of the raw materials in the two kinds of particles refers to allocation according to needs of physical granulation properties, and the zinc-containing compound fertilizer is simple in granulation and good in granulation effect.

The invention relates to a magnetic abrasive and a preparation method thereof and belongs to the technical field of abrasives. The magnetic abrasive includes, by weight, 1-15 parts of an abrasive shaping agent, 0.1-20 parts of a magnetic material, 0.1-10 parts of abrasive granules, and 0.3-15 parts of metal salts being water soluble salts of Na, K, Ca, Al, Cu, Fe, Pb, Zn, Ba or Ni. Besides the magnetic material, abrasive granules and shaping agent, the magnetic abrasive also contains the metal salts that can prevent deformation of the abrasive granules due to adhesion effect among the magneticabrasive granules.

The present invention discloses a water-soluble granule formulation of 2,4-D salt, comprising components in the following weight percent: 5-80% 2,4-D salt (calculated as 2,4-D acid), and a water-soluble filler as the balance. The water-soluble granule formulation of 2,4-D salt has an outstanding control efficiency on annual or perennial Poaceae weeds and some broadleaf weeds in fields of soybean and other Fabaceae plants, for example, such weeds as amaranth, knotweed, lamb's-quarters night shade, siberian cocklebur, barnyard grass, foxtail grass, digitaria sanguinalis, broomcorn millet and the like. The formulation is environment-friendly, and has the advantages of being free of organic solvents and dusts and being easy to measure in comparison to conventional emulsifiable formulation, wettable powder formulation and suspension formulation. The present invention also discloses the preparation method of the formulation. The production process is simple, economical and safe. The whole production process, without the use of dangerous chemicals, is easy to control and operate and has a high safety factor.

The invention relates to the field of starch production, in particular to a method for preparing soluble starch. The method is characterized in that a bio-enzyme enzymolysis secondary acidification technical route is adopted to produce the soluble starch and comprises the following steps of: adding alpha-amylase to 40 percent corn starch milk; degrading with bio-enzyme and then removing liquid; then dispersing chain scission corn starch into an aqueous solution; carrying out secondary acid denaturation; and neutralizing, removing liquid and dynamically drying to obtain a finished product.

The invention discloses an organosilane crosslinked polyethylene cable material, wherein the mass ratio of vinyl trimethoxy silane serving as a cross-linking agent, dicumyl peroxide serving as a cross-linking agent initiator, and butyltin dilaurate serving as a catalyst is (2.5-4): (0.2-1): 0.2. The preparation process is a one-step method, comprising the following steps of: mixing pre-mix materials and then directly granulating to obtain particles in a semi-cross-linking state, wherein the mixing temperature is 100-120 DEG C and the mixing speed is 960 rpm; and discharging at the mixing temperature of 140-145 DEG C by using a dual-screw machine at the speed of 300-400 RPM. The organosilane crosslinked polyethylene cable material and the preparation method thereof disclosed by the invention have the following advantages that: with adoption of the components, the organosilane crosslinked polyethylene cable material is prepared by using the one-step method, the granulating process of the cable material and the cable molding process are simplified.

The invention provides a pharmaceutical composition containing repaglinide and a preparation method thereof. The preparation method of the repaglinide pharmaceutical composition includes: firstly co-micropowdering repaglinide and meglumine, and then dry granulating to obtain repaglinide-containing granules. The invention improves the water solubility of the poorly soluble drug repaglinide, and the prepared composition has uniform content of active components and good dissolution stability, avoids the use of surfactants, reduces the toxic and side effects of the preparation, and does not cause any problems in the preparation process. There will be the problem of sticking and pressing rollers. The co-micron powder and dry granulation process is simple and easy to control, and is suitable for industrial production.