60results about How to "Low ecotoxicity" patented technology

In this invention, fatly acid and ethanolamine are proportioned and under ester-aminated, then reacting with dimethyl carbonate to produce ester-amine type quaternary ammonium salt. Said invention p rocess of synthesis has high transforming rate, excellent selectivity, high content of active matter in said product, utilizing no pollution type raw material of dimethyl carbonate, so, no remaining of poison in product, lowering quaternary ammonium salt pollution to environment and to human health.

The present invention is a method for making a class of molecules synthesized from unsaturated plant oils, and the synthesized class of molecules, such that when compounded with saturated plant oils they improve the physical properties such as low temperature behavior, measured as cold filter plug point and cloud point for biodiesel fuels and pour point for oils and lubricants, as well as other physical properties including viscosity and viscosity index, so that the physical properties of the combined materials approach the physical properties of unsaturated plant oils and find use as base material feed stocks for “Green” fuel, oil, and lubricant products.

The invention discloses a use of attapulgite in a soil heavy metal pollution restoration agent. A preparation method of the attapulgite-based soil heavy metal pollution restoration agent comprises the following steps of 1, raw ore treatment: crushing attapulgite ore, 2, acidification treatment: slowly adding 2mol/L of dilute sulphuric acid into the attapulgite ore, carrying out acidification treatment and then carrying out activation, 3, drying in the sun and screening: transporting the acidified attapulgite clay to a cement place, carrying out drying in the sun until water content is less than 14%, carrying out crushing and carrying out screening by a vibrating screen, and 4, roasting and packaging: inputting the screened powder into a roasting furnace, carrying out roasting and carrying out cooling and packaging so that the attapulgite-based soil heavy metal pollution restoration agent is prepared. The attapulgite clay subjected to sulfuric acid acidification has the characteristics of large specific surface area and high amount of porosity, has high activity and adsorptivity, can reduce a ratio of liquid heavy metal in the soil and realizes soil heavy metal passivation and heavy metal-polluted soil restoration.

The present invention is continuous solvent-free process of synthesizing ester-base quaternary ammonium salt, and features that at certain temperature, long chain tert amine carboxylate and alkylating agent as materials are mixed and reacted to produce ester-base quaternary ammonium salt in the structure as shown. The synthesis process of the present invention has continuous production, short reaction period, low power consumption, high conversion rate and high selectivity and the product with high active component content may be used as fabric softening agent, leather softening agent, disinfectant, etc.

The invention relates to the technical field of sewage treatment, in particular to a sewage flocculant. The flocculant consists of the following components in parts by weight: 12-25 parts of poly-aluminum calcium chloride, 5-15 parts of ferric chloride, 2-10 parts of aluminum potassium sulfate, 2-8 parts of sodium carboxymethylcellulose, 1-6 parts of sodium hypochlorite, 10-30 parts of poly-molybdenum chloride, 10-20 parts of diatomite, 10-20 parts of zeolite and 0.01-0.05 part of additives. The sewage flocculant has the beneficial effects that the obtained flocculant is good in degradability, low in ecotoxicity, free of stimulation on human bodies, obvious in flocculation effect on the treatment of various complex sewage and high in cost performance for dehydration of sludge; the sewage flocculant has the characteristics of no toxicity and residue for human bodies, good flocculation effect and wide application range.

The invention belongs to the technical field of biomass resource recycling and new environmental functional materials, discloses a magnetic ferromanganese oxide-loaded mesoporous cellulose biochar composite, a preparation method thereof and application of the mesoporous cellulose biochar composite in environmental governance and remediation, and is particularly applicable to the field of adsorption of anionic pollutants. The preparation method comprises preparing mesoporous cellulose biochar, compositing MnFe2O4 in one step according to a solvothermal method, and loading the MnFe2O4 onto the mesoporous cellulose biochar to obtain the magnetic ferromanganese oxide-loaded mesoporous cellulose biochar composite. The mesoporous cellulose biochar composite prepared according to the method has the characteristics of strong magnetism, capability of being charged positively under acidic conditions, high dispersion stability, high adsorptive property and the like, can be widely applied to the field of environmental governance and remediation, is particularly applicable to pollution remediation of the anionic pollutants, such as adsorption of heavy metal and organophosphorus pesticides, andhas the glyphosate adsorption capacity as high as 167.2mg/g.

The invention discloses a foam oil and smoke cleaning agent and a preparation method thereof. The foam oil and smoke cleaning agent comprises the following components in percentage by mass: 0.03 to 14.5% of surfactant, 0.2 to 15% of alkaline aid, 0.1 to 15.5% of solvent, 0.1 to 2% of corrosion inhibitor, 5 to 40% of propellant, 0.5 to 2% of humectant, and the balance of water, wherein the surfactant is one or two of sodium sec-alkane sulfonate, fatty acid methyl ester sulfonate and fatty acid methyl ester ethoxylates; and the propellant is one or two of liquefied petroleum gas and dimethyl ether. The foam oil and smoke cleaning agent is sprayed in form of foam so as not to be absorbed into body through nose holes and irritate body like common oil and smoke cleaning agent; therefore, the agent is good for the environment and body health of users. In addition, the agent can effectively attach onto vertical surfaces or bottom surface of a hood, so material liquid waste is avoided and the cleaning is more completely.

The invention discloses a heavy metal passivation material of nano zero-valent iron composite attapulgite, wherein the heavy metal passivation material comprises the following substances in percentageby weight: 70-80% of attapulgite and 20-30% of nano iron; and meanwhile, the invention discloses a preparation method and application of the heavy metal passivation material. The prepared heavy metalpassivation material can change the chemical form of heavy metals in soil by adsorbing, fixing and passivating the heavy metals in the soil, so that the ecological toxicity of the heavy metals is greatly reduced, the bioavailability of the heavy metals is reduced, and a good effect of repairing heavy metal pollution of the soil is achieved.

The invention discloses a method for preparing fabric softening agent. The method is characterized in that: long-chain fatty alcohol and unsaturated acid undergo esterification reaction, then the esterification product and alcohol amine undergo addition reaction to form secondary amine, the secondary amine and halogenated hydrocarbon undergo substitution reaction to form tertiary amine, and the tertiary amine and a quaternization reagent are reacted to form the fabric softening agent; and the fabric softening agent has the following structure, wherein R1 is alkyl of C1 to C4 or -CH2CH(OH)CH3, R2 is straight-chain or branch-chain alkyl of C1 to C3, R3 is saturated alkyl with 12 to 22 carbon atoms, x and y are 2 to 6, and X represents negative ions combined with positive ions. The product prepared by the method is a double-ester Gemini quaternary ammonium salt softening agent; by using the Gemini structure and introducing the alcohol ethyl, the problems of poor dissolubility, strong greasy feeling and poor wetting property and air permeability of the conventional softening agent (D1821) are solved; and the softening agent has more excellent softening performance and antistatic performance compared with common ester-based quaternary ammonium salts.

The invention provides a trace element type amino acid-containing liquid water soluble fertilizer comprising the following components: cottonseed meal, corn cob, wheat bran, edible mushroom bran, silkworm chrysalis, cicada slough, waste animal fur, ferrous sulfate heptahydrate, copper sulfate pentahydrate, zinc sulfate heptahydrate, manganese sulfate monohydrate, sodium borate decahydrate, ammonium molybdate tetrahydrate, complex inoculants A and B, earthworm feces, citric acid, a pH regulator and water. Modern biotechnology is used to inoculate the compound inoculants A and B, and a two-stageaerobic fermentation production process is used to decompose plant proteins contained in agricultural waste and the edible mushroom bran and animal proteins contained in the waste animal fur into small molecule free amino acids and natural active substances and nutrients to provide comprehensive protection for the healthy growth of plants. Through chelation with trace element components, the trace element type amino acid-containing liquid water soluble fertilizer is prepared. The trace element type amino acid-containing liquid water soluble fertilizer makes full use of the agricultural waste,the edible mushroom bran and the waste animal fur to realize the reuse of resources, and is environmental-friendly and non-pollution.

A provided biodegradable hydraulic oil composition is composed of the following compositions in percent by weight: 0.1-5% of a phenol type or amine anti-oxidant type anti-oxidant , 0.1-5% of a P type or S-P type nonmetal extreme-pressure anti-wear reagent, 0.01-1% of an ashless clean dispersant, 0.01-1% of an ester or calcium sulfonate antirust agent, 0.01-1% of an organic metal passivator, and the balance ester base oil. The beneficial effects comprise that compared with common hydraulic oil, the product possesses protrude biodegradable characteristic (with biodegradation rate greater than 80%, OECD301B) and excellent oxidation stability (with the time longer than 6500 h when the acid value is 2.0 mg KOH/g, ASTMD943(dry)).

The invention belongs to the technical field of environmental pollution improvement, and particularly relates to a repair agent for soil polluted due to preparing heavy metal via utilizing attapulgite. An attapulgite-based soil heavy metal repair agent is prepared through multiple steps of raw ore breaking, acidizing, drying and sieving, roasting and soil heavy metal repair and the like. Accordingto the attapulgite-based soil heavy metal repair agent subjected to acidification and thermal modification, attapulgite clay is subjected to sulphuric acid acidizing and has the characteristics of large specific surface area and high porosity, both the activity and adsorptive property of the repair agent are relatively greatly improved, the proportion of soluble heavy metal in soil can be effectively lowered, the effect of passivating soil heavy metal is achieved, and the soil heavy metal pollution is repaired.

The invention relates to a method for repairing DDTs contaminated soil by using a composite lotion, and application thereof, and belongs to the technical field of environmental chemistry. According to the invention, the absorption of plants to DDTs and the degradation of the plants in rhizosphere soil are improved by utilizing the solubilizing effect of the synergistic composite lotion compounded by the surfactant Tween80 and the green organic solvent ethyl lactate on strong-hydrophobicity DDTs in a manner of promoting the plants to repair the DDTs polluted soil through the synergistic composite lotion; and the synergistic composite lotion is regularly applied to soil in a spraying mode, meanwhile, the moisture content of the soil is strictly controlled, the percolation phenomenon is avoided, plant growth is facilitated, mixing, conveying and uniform distribution of effective components in the synergistic composite lotion are facilitated, the risk of secondary pollution is reduced, and the remediation efficiency is improved. The method has the advantages of being economical, efficient, easy to operate, wide in applicable soil type, capable of achieving in-situ remediation, small in influence on the original environment, capable of reducing the risk of secondary pollution and beneficial to soil recycling.

The invention concerns novel 1-benzoxepin derivatives, methods for preparing them, their use as fungicides, in particular in the form of fungicidal compositions, as well as methods for controlling phytopathogenic fungi of crops using said compounds or said compositions.

The invention discloses a compound quaternary ammonium salt disinfectant and a preparation method and a use method thereof, the compound quaternary ammonium salt disinfectant comprises 16 wt%-20 wt% of a quaternary ammonium salt bactericide, 0.5 wt%-3 wt% of a metal ion chelating agent, 0.5 wt%-10 wt% of a water-soluble ampholytic surfactant and a strong alkali solution for adjusting the pH value of a mixed solution to 8-10, the compound quaternary ammonium salt disinfectant further comprises 0.5 wt%-1.5 wt% of benzotriazole, 1 wt%-5 wt% of polyglycerol ether and the balance of water, and the molar ratio of ethyoxyl to glyceryl in the polyglycerol ether is 26: 1, and the balance is water. The compound quaternary ammonium salt disinfectant provided by the invention is low in ecological toxicity, good in environmental compatibility, good in bactericidal activity at low concentration after being diluted, has a corrosion inhibition effect on metal aluminum, can be used for surface disinfection of aluminum products, is wide in application range, can be used in a low-temperature environment in cooperation with a diluent, and is good in practicability.