38results about How to "The process is simple and environmentally friendly" patented technology

Positive active material and negative active material separated by lead wires are coated on two sides of composite slab lattice so as to constitute bipolar plate. The said lead wires can be cut into certainshape to become positive pole plate or negative pole plate with single pole. Single adjacent batteries separated by lead wires can be connected in series. Positive pole plate, diaphragm, and negative pole plate of single battery are winded on same core axle. Winded pole plates and diaphragm fixed by plastic fixture becomes battery core. Dried battery core is installed inside cylindrical battery box so as to complete electrochemical procedure. Then, firming agent is filled into the box. The invention combines advantages of both of quasi-bipolar battery and cylindrical winded battery, possessing features of low internal resistance, high specific energy, high specific power, and long service life.

The invention relates to a two-half type splicing water meter casing, which comprises a left cavity, a right cavity and a water separation plate, wherein the left cavity and the right cavity are mutually matched; each of the left cavity and the right cavity comprises a middle case, a water inlet end and a water outlet end which are integrally formed; a water separation plate positioning grooves are formed in the inner walls of the left cavity and the right cavity; when the left cavity, the right cavity and the water separation plate are assembled; the edges of the water separation plate are totally clamped in the positioning grooves of the water separation plate, so that the water separation plate is arranged in the casing in a sealed way. The invention also relates to a processing methodof the water meter casing. The method also comprises the steps of assembly punching shaping, blank assembling, welding and shaping and numerical control machine processing. The water separation platepositioning groove is formed in the left and right cavities; during the assembly, a braze welding material welding process is used as an auxiliary process to solve the problems of casing assembly positioning and sealing. The two-half type splicing water meter casing has the advantages that no pollution is caused during the processing; the process is simple and convenient, and achieves the environment-friendly effects; the production efficiency is high; the period is short; the product qualification rate is obviously improved. Meanwhile, the product surface is smooth and like a mirror surface;the appearance is novel and bright.

The invention discloses a neck nursing composition and a preparation method and application thereof. The composition is prepared from the following components in parts by weight: 0.1-3 parts of actinidia chinensis seed powder, 0.01-1 part of camellia-seed oil, 0.01-1 part of peony seed oil, 0.01-1 part of plukenetia volubilis seed oil, 0.001-1 part of citrus amara oil and 0.1-3 parts of walnut shell powder. A mild formula provided for skin characteristics of the neck can soften cutin and clean pores effectively and remove waste on the surface of the skin and meanwhile, promotes the skin to absorb nutrient, nourishes and whitens the skin of the neck, desalts melanin deposition, plays roles of moisturizing and supplementing moisture and is very good in skin type adaptability.

The invention provides a composite reinforced textile and a production method thereof. The composite reinforced textile comprises high-hardness thermoplastic elastomeric yarn and low-hardness thermoplastic elastomeric yarn, and the surface of the low-hardness thermoplastic elastomeric yarn is attached to that of the high-hardness thermoplastic elastomeric yarn after being micro-melted. The production method of the composite reinforced textile comprises the steps that the high-hardness thermoplastic elastomeric yarn and the low-hardness thermoplastic elastomeric yarn are woven into a textile body, wherein the melting point of the low-hardness thermoplastic elastomeric yarn is between 50 DEG C and 150 DEG C; at a hot-press temperature, the textile body is hot-pressed to obtain the composite reinforced textile, wherein the hot-press temperature is larger than or equal to the melting point of the low-hardness thermoplastic elastomeric yarn and smaller than the melting point of the high-hardness thermoplastic elastomeric yarn. Through above technical means, the composite reinforced textile with high tensile strength and high impact strength can be obtained through a simple convenient environmentally-friendly technology.

A preparation method of a washing-free mask comprises following steps: at first, preparing carbon nanotubes; then modifying carbon nanotubes by polyethylene glycol; loading chitosan on polyethylene glycol modified carbon nanotubes; preparing collagen by boiling fish skin and pig skin; and finally loading collagen on the chitosan composite material to obtain the washing-free mask. The preparation method is simple and environmentally friendly. Moreover, the composite membrane has good biocompatibility, the degradation speed can be controlled effectively, the nutrients can be better absorbed by skin, and the time for nutrient absorption is prolonged.

The invention discloses a corrosion inhibitor for pickling of copper and alloys thereof and a preparation method of the corrosion inhibitor and belongs to the corrosion protection technologies of chemical cleaning processes of metals. The corrosion inhibitor is prepared by the following steps: taking phenylhydrazone derivatives of acetophenone and 2-hydroxy-1-naphthaldehyde condensation compoundsas core corrosion inhibition components, and compounding with ethanol or organic acids and surfactants to prepare an aqueous solution, so as to obtain the product. The corrosion inhibitor for pickling, disclosed by the invention, is simple in formula, simple and convenient in preparation and safe in operation and is a low-toxicity and high-efficiency environmental-friendly corrosion inhibitor.

The invention discloses a method for producing calcium fluoride by utilizing high-fluorine-content industrial wastewater, and belongs to the technical field of fluorine-containing wastewater treatment. The method comprises the following steps: introducing fluorine-containing wastewater into a 1 # reaction tank, adding calcium hydroxide to adjust the pH value to 9-11, stirring for 30 minutes, introducing upper-layer wastewater into a 2 # reaction tank, adding calcium chloride to adjust the chloride ion concentration to 300-400 mg/L, stirring for 30 minutes, introducing the upper-layer wastewater into an inclined plate sedimentation tank, introducing supernate of the inclined plate sedimentation tank into a buffer tank, and filtering to obtain the fluorine-containing wastewater. Sludge generated by the inclined plate sedimentation tank is discharged into a sludge concentration tank; pumping the sludge in the concentration tank into a solid-liquid separator to obtain a mixture solid product with the calcium fluoride content of 30-35% for recycling; and pumping the wastewater in the buffer pool into a precision filter, removing suspended matters in the wastewater, feeding the wastewater into a defluorination filtering tank filled with a special adsorption material, filtering the effluent with the fluoride concentration not higher than 1.5 mg/L, adjusting the pH value of the effluent to 6-9, and discharging the effluent. The problems that in an existing fluorine-containing wastewater treatment technology, material consumption and energy consumption are large, products cannot be recycled, and secondary pollution of different degrees is derived are solved.

The invention discloses a preparation method of flurogestone acetate. The preparation method comprises the following steps: using 9a-cortisone bifluoride as a raw material, dissolving 9a-cortisone bifluoride into an organic solvent, and reacting with acyl chloride under the existence of an acid-binding agent to obtain a 9a-cortisone bifluoride-21-O-ester; then reacting the ester with sodium iodide and a sulfur-containing reducing agent in the organic solvent for deesterification, and synthesizing flugestone; and finally reacting the flugestone with acetylchloride or acetic anhydride in the organic solvent, and synthesizing flurogestone acetate. According to the preparation method, 9a-cortisone bifluoride is used as the raw material, flurogestone acetate is synthesized through three-step reaction of 21-site esterification, then reduction and de-esterification and finally 17-site ethyl esterification, and compared with a traditional synthetic method for using a mold removal object acquired through diosgenin processing as a raw material, the preparation method has the advantages such as wide raw material source, short synthetic route, simple, convenient and environmentally-friendly process, few invested equipment and high product yield, and the production cost in the method is reduced by 25% to 30% as compared with a traditional method; and a solvent used in the production can be recycled and circularly used, and is easy for industrial production.

The invention provides a method for preparing metandienone, the method comprises firstly using a nutrient medium and one or more microbial strains, performing microbial fermentation on phytosterol toprepare 1,4-androstenedione, namely IDD, then using the IDD as the raw material, introducing alpha-CH3 and beta-OH into a 17 site with the existence of methyl magnesium halide, an organic solvent andan acid, and preparing the metandienone. The method uses the IDD as the raw material to prepare the metandienone, compared with the traditional method taking diosgenin as the raw material, the sourceof the raw material is wide, the process is economical and environmentally friendly, and the production cost is greatly reduced. Compared with the traditional production method, the synthesis route isshort, the process is simple, convenient and environmentally friendly, the yield of a product is high, the quality is high, and the cost of the raw material for production is reduced by 40-45% according to the current price of the raw material.