32results about How to "No new pollution" patented technology

The invention discloses a waterproof glue for external wall ceramic tile, which is formed by formulating acrylic emulsion, ethylene glycol, film forming auxiliary (dodecyl ester), alkali swelling thickener, antiseptic and defoaming agent, the waterproof glue has the advantages of being waterproof, joint-filling, transparent, rich in elasticity, environmentally-friendly, bright and clean, simple and convenient in applying, etc., and is free from toxicity, odor and new pollution even in case of the long-term use thereof and is also age resisting, therefore, the waterproof glue for external wall ceramic tile is an ideal product for environmental protection.

The present invention belongs to the field of building material technology, in the concrete, it relates to a waste rubber powder flexible acrylic acid water-base joint-filling material and its preparation method. It is made up by using rubber powder obtained by processing waste tyre as aggregate, and mixing it with the chemical raw materials of acrylic acid elastic emulsion, sodium hexametaphosphate, sodium benzoate, ethylene glycol, propylene glycol, polydimethylsiloxane, methyl cellulose, calcium carbonate and colouring agent according to a certain mixing ratio.

The present invention belongs to the field of building material technology, in the concrete, it relates to a flexible acrylic acid waste polyurethane water-base composite joint-filling material and its preparation method. It is made up by using powder obtained by processing waste polyurethane material as aggregate and mixing it with the chemical raw materials of acrylic acid elastic emulsion, sodium hexametaphosphate, sodium benzoate, ethylene glycol, propylene glycol, polydimethylsiloxane, methyl cellulose, calcium carbonate and colouring agent according to a certain mixing ratio.

The invention discloses a Pd / TOC photocatalyst, a Pd / CdS / TOC photocatalyst, a preparation method and an application thereof. The Pd / TOC photocatalyst is prepared by taking TOC as a load object and loading Pd on TOC. The Pd / CdS / TOC photocatalyst is prepared by further loading CdS on the basis of the Pd / TOC photocatalyst. Various photocatalysts prepared according to the invention are all green and environment-friendly materials; no new pollution is generated after degradation of the photocatalysts; degradation efficiency is high; applicable environment is extensive; the photocatalysts can be used for treating wastewater; the efficiency of degrading 2,4-dichlorophenol is high; the popularization and application of photocatalysts have huge advantages.

The invention provides a comprehensive utilization method for Bayer red mud, belonging to the technical field of metallurgy and chemical engineering. The method comprises the following steps: firstly,mixing the Bayer red mud with concentrated sulfuric acid, and conducting complete salinization under a low-temperature condition to obtain sulfated red mud; then, roasting the prepared sulfated red at a temperature of 600-900 DEG C, subjecting a roasted product to water leaching, and then conducting solid-liquid separation to obtain a sodium-rich low-iron leachate and high-iron red mud oxidized clinker; and finally, adding sodium carbonate into the leachate, carrying out solid-liquid separation, and carrying out evaporative crystallization on a filtrate to obtain sodium sulfate crystals. Thehigh-iron red mud oxidation clinker can be used for extracting aluminum. According to the method, high-purity sodium sulfate can be prepared, and aluminum can be extracted, so the waste is turned intowealth, and harm caused by direct accumulation of the red mud is eliminated.

The invention discloses a method for recovering lithium and potassium from high-lithium-potassium anode carbon residues or high-lithium-potassium electrolytes. The method comprises the following stepsthat (1) the high-lithium-potassium anode carbon residues or the high-lithium-potassium electrolytes are finely ground as raw materials, mixed with a concentrated sulfuric acid solution, and heated to 280-500 DEG C for reacting; (2) water is added into the reacted materials for leaching, and primary filtrate is filtered and separated out; (3) the pH value is adjusted to be equal to 6-8 when the temperature of the primary filtrate is less than or equal to 30 DEG C, and secondary filtrate is obtained through filtering and separating; (4) the secondary filtrate is cooled to minus 5 DEG C to-minus 10 DEG C, and Na2SO4 is separated out; third filtrate is filtered and separated out; (5) after the third filtrate is heated to 90-100 DEG C or boiled, Na2CO3 is added and Li2CO3 is precipitated andseparated out, and the Li2CO3 and fourth filtrate are filtered and separated out; and (6) the fourth filtrate is cooled to minus 5 DEG C to-minus 10 DEG C, and Na2SO4 is precipitated out, a K2SO4 solution is filtered to separated out, and a K2SO4.xH2O product or a K2SO4 product is obtained by concentrating or dehydrating. The method is low in process flow cost and convenient to operate, almost does not generate new pollution while the waste is fully recovered, and has a good popularization prospect.

The invention provides soft pellet aquatic feed which is convenient to use and can replace alive small trash fishes. The soft pellet aquatic feed is mainly prepared from fishmeal, seaweed meal, beer yeast powder, fermented soybean meal, poly-phycocolloid, lysine, methionine, arginine, monopotassium phosphate, choline chloride and the like; the moisture content is more than or equal to 20% and less than or equal to 40%. The soft pellet aquatic feed can be produced in a large scale in a factory-like manner; meanwhile, the soft pellet aquatic feed can be preserved at a room temperature for more than 30 days and does not go bad.

The invention is a kind of dual environmental protection building surface ornamenting material produced by using brick powders of grinded waste construction clay bricks as main materials and its producing method. The invention makes clay brick powders as main materials, and is compounded from such chemical industry materials as acrylic acid emulsion, sodium hexametaphosphate, sodium benzoate, glycol, trimethylene glycol, polydimethyl siloxanes, methylcellulose and titanium oxide powder as per certain proportion. The invention has simple technics, convenient and sanitary construction, and can be used both in upscale wall surface and surfaces of column, tablet and board. After ornamented, it has elegant and vivid brick wall style, especially suitably used for outer ornament and repair of building wall surfaces whose outer walls need brick wall structures.

The invention belongs to the technical field of nonferrous metal extraction. The invention provides a method for efficiently extracting lithium from lithium-rich aluminum electrolyte waste residues and preparing anhydrous aluminum fluoride. According to the method, HF gas generated by curing and volatilizing concentrated sulfuric acid is subjected to dust removal and impurity removal and then directly makes contact with an aluminum-loaded organic phase to prepare anhydrous AlF3, the purity of the synthesized anhydrous AlF3 is high, the prepared anhydrous AlF3 can be returned to the aluminum electrolysis process to serve as a cosolvent, and cyclic utilization of aluminum and fluorine is achieved. According to the method, the lithium resource in the lithium-rich aluminum electrolyte waste residues is recycled in the form of Li2CO3, the recycling rate is high, the product purity is high, and high economic benefits are achieved. According to the method, sodium dimethyl dithiocarbamate solution is used as a precipitator to deeply purify and remove calcium, magnesium and aluminum, the impurity element removal effect is thorough, and raw materials are prepared for the step of precipitating lithium in sodium carbonate. In the treatment process of the lithium-rich aluminum electrolyte waste residues, various components can be efficiently recycled, and new pollution is not generated while waste materials are fully recycled.

The invention relates to a luminous disinsection multifunctional surface material and a corresponding preparation method, belonging to construction material technical field, which uses permethrin, SrAI2O4:Eu2+ as main materials and adds styrene-acrylic emulsion, sepiolite and other materials. The invention has simple process, easy operation, clearness and wide application in hospital, canteen, company and channel or the like. Via the luminous property, the invention can be used as indication and decorative material, particularly as aqueous environment-friendly material, without toxicity, smell and pollution in production, construction and application.

The invention discloses a method for preparing vanadium trioxide by recycling anode electrolyte of an invalid vanadium battery. The method comprises the following steps: a, measuring tetravalent vanadium ion concentration and pentavalent vanadium ion concentration of the anode electrolyte of the invalid vanadium battery; b, adding a carbon-based adsorbent into the electrolyte in the step a, adsorbing, filtering and drying to obtain a vanadium-containing adsorbent; and c, roasting the vanadium-containing adsorbent obtained in the step b under the protection of an inert atmosphere to obtain a vanadium trioxide product. According to the method for preparing the vanadium trioxide by recycling the anode electrolyte of the invalid vanadium battery, the problem of disposal of the electrolyte of the existing invalid vanadium battery can be solved, a high-added-value vanadium trioxide product can be obtained, and the method is simple in process, free of pollution, environmentally friendly and good in application prospect.

The invention relates to a technology of industrial waste liquid treatment, and provides a treatment technology of acid washing and alkaline washing waste liquid of aluminum substrate. The treatment technology is mainly characterized in that oil removal, iron removal and phosphorus and silica removal pretreatments are respectively carried out on acid washing waste liquid and alkaline washing waste liquid, and the acid washing waste liquid and the alkaline washing waste liquid are mixed, neutralized and separated, oily filter residue can be used as fuel, filter cakes can be recycled, and the waste water discharged reaches the standard. The treatment technology can perform smooth treatment to a large amount of acid washing and caustic washing waste liquid of aluminum substrate, can not cause additional pollution, can recycle side products, and solves the technical problem in the field at home and abroad for a long time, and a pilot-scale test shows that the design is reasonable, the technology is easy to be implemented, and the technology has great social, environmental protection and economic benefits.

The invention relates to the technical field of road asphalt, in particular to a bio-based deodorant as well as a preparation method and application thereof. The bio-based deodorant is prepared from 40-60 parts of 3, 4-dilinoleyloxy-a-methyl benzene acrolein, 40-60 parts of nano white carbon black, 0.3-0.5 part of an antioxidant and 1-3 parts of polyethylene wax. In the use process, the bio-based deodorant can form a ficus base substance with amino in asphalt; and hydrogen sulfide, mercaptan and the like generated in a stabilizer development process form stable thioacetal, so that toxic gas does not overflow any more, and the use pollution is reduced. The synthesis raw materials are all from natural substances, for example, 3, 4-dihydroxybenzaldehyde is extracted from roots of labiatae plant salvia miltiorrhiza, and linoleic acid can be extracted from various oil crops. The synthesis method is green, environment-friendly and pollution-free; and the synthetic product is degradable and can be degraded by bacterial microorganisms after the pavement reaches the service life. The synthetic raw materials have special plant fragrance, and can relieve the discomfort of operators caused by peculiar smell generated in the asphalt mixing process.