35results about How to "Low cost and energy consumption" patented technology

The invention provides a cleaning preparation method of laminated composite metal hydroxide, wherein a general formula of chemical composition of the laminated composite metal hydroxide is M2+1-xM3+x(OH)2(An-)x / n.mH2O. The method uses hydroxide of divalent metal, basic carbonate or carbonate and the hydroxide of trivalent metal as raw materials to directly synthesize and prepare the laminated composite metal hydroxide with a regular structure by one step, wherein all the materials take part in the reaction to generate the target product without a by-product; the drying treatment can be carried out directly and the water resource is greatly saved. The method has the advantages of simple technological process, little device investment, low cost and energy consumption and no environmental pollution, and belongs to an environment-friendly technique.

The invention discloses a coloring masterbatch for improving the vividness and tinting strength of polyester fiber, which comprises 20-30% of pigment, 5-10% of ethylene acrylate copolymer, 2-5% of dispersant, and the balance is carrier resin. The present invention relates to a kind of coloring masterbatch that improves the brightness and coloring strength of polyester, which uses pigments and ethylene acrylate copolymers, so that the brightness and coloring strength of polyester fibers using the coloring masterbatch can be improved, so that The brightness of polyester fiber is increased by 20%, while the spinning stability is improved, the pressure is stable, the spinning cycle is increased by 20%, and in the process of cleaning components, there are less residues, cleaning is more convenient, and cost and energy consumption are significantly reduced.

The invention discloses a preparation method of potassium aspartate crystals. The method comprises the following steps of (1) adding pure water being 0.25 times the mass of aspartic acid into a reaction container; in the stirring state, adding the aspartic acid and potassium carbonate; preparing a potassium aspartate aqueous solution; (2) after reaction clarification, regulating the pH value to 6.5 to 6.8 by potassium carbonate; (3) adding medical active carbon into the obtained solution for decoloration filtering; (4) adding organic solvents into filter liquid; (5) controlling the crystal separation temperature at 0 to 20 DEG C; performing cooling crystal separation for separating the crystals for 8 to 12 hours; performing vacuum drying on filter cake to obtain a product. The 0.25 times of pure water (relative to the mass of the aspartic acid) is used as the reaction solvents; the discharge of a great amount of waste water is reduced; then, the energy consumption is reduced by controlling the crystallization temperature; the solvents such as isopropanol, n-butyl alcohol and methylisobutylketone are reasonably used for obtaining a potassium aspartate finished product capable of being more stably stored; the operation in the whole crystal preparation process is simple; the cost and the energy consumption are low; the product can be easily stored; the method is very suitable forindustrialized production.

The invention discloses a production technology of plasterboard modified starch, comprising the following steps of mixing, degeneration reaction, neutralization reaction, physical synergism, screening, weighing and packaging. The invention combines the advantages of various modified starches, has the advantages of strong size film strength, transparency, good water absorption, good dispersion, good gliding property, low gelatinization temperature, strong paste liquid bond force, good adsorbability, easy dissolution, good film forming ability, weak retrogradation, good elasticity, smoothness, flexibility, tough and elastic size film, nontoxicity, tastelessness, safe use, convenient operation, large production scale, little investment, low energy consumption, less pollution, high productionefficiency, stable and reliable product quality and the like and is widely applied to gypsum products.

The invention discloses a method for improving brilliance and tinting strength of polyester fiber. The method comprises the following step: S1, preparing coloring master batch, wherein the prepared coloring master batch is prepared from 20 to 30% of pigment, 5 to 10% of ethylene acrylate copolymer, 2 to 5% of dispersing agent and the balance of carrier resin; S2, mixing the coloring master batch with PET slices and drying, wherein the weight proportion of the coloring master batch is 5 to 20%; S3, putting the coloring master batch and the PET slices which are evenly mixed into a spinning machine to be molten and extruding into silk by a spinneret plate to form polyester fiber. According to the method for improving brilliance and tinting strength of the polyester fiber disclosed by the invention, the coloring master batch containing pigment and the ethylene acrylate copolymer is used, so that brilliance and the tinting strength of the prepared polyester fiber is improved, and the brilliance of the polyester fiber is improved by 20%; meanwhile, spinning stability is improved, pressure is stable, and a spinning period is improved by 20%; furthermore, in an assembly cleaning process, residues are less, more convenience is brought to cleaning, and cost and energy consumption are obviously reduced.

The invention provides a clean preparation method of layered composite metal hydroxides (LDHs), which uses metal hydroxides, metal soluble salts and metal basic carbonates as reaction raw materials, and directly synthesizes high-purity, Regularly structured layered composite metal hydroxides. Since only metal hydroxides, metal soluble salts and metal basic carbonates are used as reaction raw materials in the reaction process, NaOH or NaOH or NaOH commonly used in traditional processes are not used. 2 CO 3 Alkaline raw materials can greatly reduce the alkalinity of the reaction product, avoid multiple washings with a large amount of water, save a lot of water resources, and protect the environment; The method is a clean preparation method in which a substance or an oxide is used as a reaction raw material, the reaction temperature of the method is lowered, the reaction time is shortened, the reaction condition is mild, the production cost and energy consumption are low, the requirements for the reaction device are low, the equipment investment is small, the process flow is simple, and basically no Environmental pollution is an environmentally friendly process.

The invention relates to a composite material injection molding forming technology. An existing injection molding forming technology is optimized and improved, metal powder of Ti, Mg, Al, Ni, Mo and other components and matrix resin are utilized as composite material raw materials, the multi-sprayer intermittent injection molding manner is adopted, under the technology conditions of the injectionmolding pressure, the temperature, the time and the like obtained through repeated tests, finally-obtained plastic products have good mechanical performance, and the technical characteristics that fewsurface defects exist, the glossiness at 60 DEG C is larger than 80%, and cost and energy consumption are low are achieved.

The invention provides an oil displacement composition, a multi-element thermal fluid oil displacement composition containing the same and a displacement method. The oil displacement composition comprises the following components in percentage by weight: 10-45% of ammonium hydrogen carbonate, 0.3-10% of high-temperature foaming agent, 0.2-5% of high-temperature oil displacement agent and the balance of water. The multi-element thermal fluid oil displacement composition provided by the invention comprises the oil displacement composition and water vapor, wherein the mass ratio of the oil displacement composition to the water vapor is 1:(20-100). The multi-element thermal fluid displacement method provided by the invention comprises the following step of: injecting the multi-element thermal fluid oil displacement composition into a heavy oil reservoir through an injection well in an injection-production well group. The multi-element thermal fluid oil displacement composition provided by the invention has low preparation cost and lower energy consumption; a replacing technology after vapor injection into the heavy oil reservoir is formed by combining the displacement technology; and the replacing technology has synergistic effects such as displacement control, quick supplement of stratum energy, improvement of underground seepage capability of fluid and the like so as to improve the crude oil recovery rate.