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478 results about "Anticaking agent" patented technology

An anticaking agent is an additive placed in powdered or granulated materials, such as table salt or confectioneries, to prevent the formation of lumps (caking) and for easing packaging, transport, flowability, and consumption. Caking mechanisms depend on the nature of the material. Crystalline solids often cake by formation of liquid bridge and subsequent fusion of microcrystals. Amorphous materials can cake by glass transitions and changes in viscosity. Polymorphic phase transitions can also induce caking.

Acrylic acid series nucleocapsid polymer emulsion and re-dispersible emulsion powder, and method for producing thereof

InactiveCN101173021AImprove performanceMeet the redispersion performanceAnticaking agentPolymer chemistry
The invention relates to a crylic acid nucleocapsid polymer emulsion and subdividable emulsion powder and the preparation method thereof. The emulsion is prepared by methacrylic acid alkyl ester, crylic acid alkyl ester, hydroxyalkyl ester, methacrylic acid, N-methylol acrylamide, an emulsifying agent and an initiator through the method of emulsion polymerization. The subdividable emulsion powder is prepared by the crylic acid nucleocapsid polymer emulsion, a protective colloid, and an anticaking agent through the spray method of emulsion. The subdividable emulsion powder of the invention has high fixed content (approximating 100 percent) and can reduce the difficulty of transportation and storage, and can be packed by using paper to reduce the packing cost, moreover, the storage stability is good and the storage period is long, and the subdividable emulsion powder of the invention can not go bad due to the water freezing or volatilization; the invention has the important thing that the subdividable emulsion powder can be rapidly dissolved in water and evenly distributed to repeatedly form the emulsion having the same performance as the primary matrix polymer emulsion, thereby being widely applied to zero VOC dry powder paint, terrace patch mortar, artesian flow flat plateau mortar, wall and floor tile bonding agent, sealed mortar, construction luting powder, plastering material, plastering gypsum, heat insulation and heated board bonding material, concrete interface agent, powder binding agent, powder paint, etc.
Owner:SHANGHAI UNIV +1

Anticaking agent for powdery compound fertilizer as well as preparation method and application thereof

The invention discloses an anticaking agent for a powdery compound fertilizer as well as a preparation method and application thereof. The anticaking agent comprises the following components in percentage by weight: 75-95 percent of inorganic powder and 5-25 percent of modifier, wherein the inorganic powder is one or a mixture of some of talc powder, white carbon black, diatomaceous earth or calcined kaolin; and the modifier is one or a mixture of some of alkylamine with 4-25 carbon atoms, acetate or hydrochloride and the like of the alkylamine, fatty acid with 4-25 carbon atoms, stearate with 4-25 carbon atoms, alkylbenzene sulfonate with 4-25 carbon atoms, alkyl sulfate with 4-25 carbon atoms, paraffin wax or alkanol with 4-25 carbon atoms. The preparation method of the anticaking agent for the compound fertilizer comprises the following steps of: grinding the inorganic powder to 500-2,000 meshes; adding the ground inorganic powder and the modifier into a powder modification machine; controlling the temperature between 75 DEG C and 85 DEG C; stirring for 20-30 minutes; and modifying and cooling to obtain the anticaking agent for the powdery compound fertilizer. The anticaking agent for the powdery compound fertilizer has the advantages of low cost, convenience of adding and using, benefits to popularization and use as well as environmental protection, biodegradability of the modifier, no pollution to lands, good anticaking effect and capability of ensuring that the fertilizer is not caked within 3-6 months.
Owner:BEIJING FURUIXUE SCI & TECH DEV

Method for preparing white carbon black and manganese fertilizer from manganese leaching residue

The invention discloses a method for preparing white carbon black and manganese fertilizer from manganese leaching residue. The method comprises the following steps: 1, washing the manganese leaching residue with dilute sulphuric acid solution and running water in turn to obtain the residue; 2, conducting reaction between the residue and 25 to 40% strong base solution by mass at 90 to 120 DEG C for 2 to 5 h, and filtering to obtain filtrate; 3, decoloring the filtrate with active carbon and then carboxyl-terminated hyperbranched polyester at 100 to 120 DEG C to obtain the aqueous solution of silicate; 4, adding water and then inorganic acid and carboxyl-terminated hyperbranched polyester for reaction at 40 to 90 DEG C for 0.5 to 2 h to obtain the white carbon black; and 5, drying and dehydrating the residue obtained in step 2 and adding into a high-speed mixer, adding phosphoric acid, anticaking agent and manganese sulfate into the high-speed mixer, and mixing at room temperature for 10 to 20 min to obtain the manganese fertilizer. The method is simple in process and low in cost and is suitable for industrial production; and the silicon dioxide content of the prepared white carbonblack is more than 95% by mass, the specific area is more than 270 m<2> / g and the particle size is less than 50 nm.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES

Nucleating additive formulations of bicyclo[2.2.1]heptane dicarboxylate salts

Milled, small particle size, solid bicyclo[2.2.1]heptane dicarboxylate salt-containing thermoplastic nucleating additive formulations further comprising at least one anticaking agent for improved haze reduction, improved nucleation performance, and prevention of potential cementation (via agglomeration) of the salt component present therein are provided. Such small particle size dicarboxylate salts provide desirable properties within thermoplastic articles, particularly as nucleating agents, but apparently suffer from certain clarity issues and agglomeration problems (due to the flat and thin plate structures of such compounds and the propensity they exhibit to cohere to each other during storage), making utilization thereof less desirable for certain applications. Thus, an improvement has been provided to permit full benefit of the excellent crystallization temperatures, stiffness, and calcium stearate compatibility such dicarboxylate salts accord within target low haze thermoplastics. Furthermore, unexpected improvements in dusting reduction have been found upon the utilization of such anticaking additives in combination with the aforementioned nucleating salts. Thermoplastic additive compositions and methods of producing thermoplastics with such nucleator / anticaking additive combinations are also contemplated within this invention.
Owner:MILLIKEN & CO

Water-soluble composite fertilizer with high phosphorus and calcium, and preparation method thereof

The invention provides a water-soluble composite fertilizer with high phosphorus and calcium. The composite material comprises, by weight, 10-60 parts of a potash fertilizer, 10-60 parts of a phosphate fertilizer, 10-30 parts of a calcium fertilizer, 2-20 parts of urea and 0.1-5 parts of an anti-caking agent. The invention also provides a preparation method of the water-soluble composite fertilizer with high phosphorus and calcium. The composite fertilizer has the characteristics of high content of total nutrients, stable physical and chemical properties, good powder fluidity, no caking, precipitation or gas bloating at high temperature, low temperature or normal temperature, and good solubility. Phosphoric acid or phosphate is added to a solution obtained by dissolving the composite fertilizer in water to provide an acidic condition in order to make phosphate radicals and calcium ions simultaneously stably coexist in a liquid phase and avoid the generation of calcium phosphate and other insoluble precipitates. The water-soluble composite fertilizer effectively improves the fertilizer utilization rate, has highly concentrated nutrients, is suitable for large-area automatic fertilization, can obviously improve the fertilizing efficiency, and also has the advantages of time saving, labor saving, fertilizer saving and fast fertilizer efficiency.
Owner:GUANGZHOU YIXIANG AGRI TECH
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