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778results about How to "Easy to produce" patented technology

Method for producing potassium chloride by steel enterprise sintering electro-precipitating dust

ActiveCN101234766AEasy to produceSimple processAlkali metal chloridesNaCl - Sodium chlorideMagnesium
The invention relates to a method for producing potassium chloride by using electric precipitator dust of a sintering process of a steel plant, which belongs to a production technology of potassium salt. Under room temperature, tap water is adopted and is leached by adding appropriate SDD under the condition that liquid-solid ratio is 2/1 to 1/1; the leaching rate can be up to 95 to 99.5 percent. Filter residue after filtration is returned to the sintering process after drying; leaching liquid is heated and concentrated to 3/5 to 4/5 of original volume; product of the potassium chloride and sodium chloride is slowly cooled and fractionally crystallized; purity can be up to 95 to 98 percent; total concentration of calcium and magnesium is 0.4 to 3 percent. Crystallization mother liquor is returned for leaching the precipitator dust. The method for producing the potassium chloride by using the electric precipitator dust has simple and easy process, little energy consumption, without wastewater discharged; at the same time, the method makes up current situation of shortage of potassium recourse in our country to a great extend and avoids that vicious circle of alkali metal affects normal proceeding of the sintering process of steel industry.
Owner:唐山汇鑫嘉德节能减排科技股份有限公司 +1

Wood plastic composite dalle and preparation method thereof

InactiveCN102140213AEasy to produceReduce manufacturing costPlastic bagAzodicarbonamide
The invention relates to a wood plastic composite, in particular relating to a wood plastic composite dalle and a preparation method thereof. The preparation method comprises the following steps: mixing polrvinyl chloride particles, nano attapulgite, calcium carbonate powder, short glass fibers, terpene resin, chlorinated polyethylene, tribasic lead sulfate and stearate, extruding and pelleting, so as to obtain a modified plastic particle; evenly mixing the modified plastic particle with wood poader and azodicarbonamide and pelleting so as to obtain a wood plastic particle; and finally, extruding the wood plastic particle, foaming and forming so as to obtain the wood plastic composite dalle. The wood plastic composite dalle can be manufactured conveniently, and has the advantages of high production mechanization degree and less required labor. Compared with the common plastic dalle, the wood plastic composite dalle provided by the invention has the following advantages: the plastic dosage of the wood plastic composite dalle is reduced, and wood plastic composite dalle is environment-friendly, and has the characteristics of high modulus, low density, creepage resistance and low product cost. Compared with the gypsum boards, aluminum plates and the like, the wood plastic composite dalle provided by the invention has the following advantages: the cost is lower, the density is smaller, the installation and maintenance are more convenient, and the wood plastic composite dalle has an air purification function. The wood plastic composite dalle can be widely applied to various scenes such as buildings and houses, home offices and the like.
Owner:扬州润友复合材料有限公司

Antimony floatation working condition recognition method and system

ActiveCN103839057AOvercome the shortcomings of lack and low recognition rateEasy to produceCharacter and pattern recognitionAntimonyExtension theory
The invention provides an antimony floatation working condition recognition method and system. The antimony floatation working condition recognition method includes the steps of preprocessing recorded antimony floatation foam image characteristic data, extracting key foam characteristics which are highly sensitive to working condition changes and have no relations or have weak relations with one another from the processed foam image characteristic data, fusing various key foam characteristics based on the matter-element extension theory, setting up the relational degree matrix between the key foam characteristics of working conditions to be recognized and types of preset working conditions through a correlation function, combining the subjective weighting method with the objective weighting method through the game theory method and by means of the optimization theory to obtain the comprehensive weight of the key foam characteristics, calculating the comprehensive relational degree between the working conditions to be recognized and the types of the preset working conditions based on the relational degree matrix and the comprehensive weight, determining the types of the working conditions to be recognized according to the maximum relational degree principle, and forecasting the level change tendency of the working conditions.
Owner:CENT SOUTH UNIV
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