37results about How to "Wide range of PH value" patented technology

A composite water biocide consists of polyol phosphate 20-30wt%, isothiazolinone 30-50wt% and dodecyl dimethyl benzyl 30-50wt%. It has better broad-spectrum bacterial, inhibition and corrosion-resistant performances and is convenient to store.

The invention relates to a method for preparing a surfactant by taking a lignin thermo-chemically degraded product as a raw material. The method comprises the following steps of: mixing lignin in a pulping waste liquid or lignin obtained from a waste liquid produced in wood hydrolyzing and biomass smelting processes with high-boiling-point alcohol in the liquid-solid ratio of 3:1-5:1; in the presence of an acid metal salt catalyst, performing liquefying treatment at the temperature of 150-350 DEG C to obtain a liquefied product in which phenols are taken as main materials; and purifying the liquefied product and adding various etherification, esterification, graft copolymerization or crosslinking modification reagents at the temperature of 40-90 DEG C to obtain the surfactant. The surfactant with the method has high water solubility, a wide application range and high surface activity; and the lignin which is subjected to liquefying treatment has the characteristics of suitability for various chemical modifications, low cost and wide application range.

The invention relates to a technology for purifying and reusing beneficiation wastewater of lead-zinc sulfide ore by coupling of hydrodynamic cavitation and H2O2. The technology comprises treatment steps as follows: (1), industrial-grade H2O2 is added to a buffer pool of lead-zinc sulfide ore beneficiation mixed wastewater through a pipeline; (2), the mixed wastewater treated in the step (1) is pumped and elevated from the buffer pool by a centrifugal pump and is conveyed by a conveying pipeline, the conveying pipeline comprises a main pipeline, and a flow meter, a pressure gauge and a hydrodynamic cavitation generation device are connected onto the main pipeline; (3), when the wastewater in the main pipeline passes the hydrodynamic cavitation generation device, pressure of the liquid during passing through a perforated plate is plunged under the flow resisting action of the perforated plate, a large quantity of cavitation bubbles are produced, and degradation of residual chemicals inthe beneficiation wastewater can be accelerated; (4), residual chemicals affecting reuse in the wastewater are purified under the actions of cavitation effect, strong oxidation effect of H2O2 and thecoupling effect; (5), the wastewater treated in the step (4) is totally returned to a beneficiation production system for reuse without influence on beneficiation indexes.

The invention discloses anti-aging repair cream and relates to the technical field of skin care products. The anti-aging repair cream comprises following components in percentage by mass: 5%-8% of glycerin, 3%-6% of polyethylene glycol-400, 0.1%-0.3% of xanthan gum, 0.1%-0.5% of sodium hyaluronate, 0.3%-0.5% of an ammonium acryloyldimethyltaurate / vp copolymer, 5%-8% of caprylic / capric triglyceride, 6%-10% of ethylhexyl palmitate, 1%-3% of polydimethylsiloxane, 2%-4% of shea butter, 1%-3% of cetyl alcohol, 2%-4% of stearyl alcohol, 2%-4% of an emulsifier, 1%-5% of anti-aging repair composition,1%-5% of antiallergic composition, 0.3%-1% of antibacterial composition and the balance of water. The invention further discloses a preparation method of the anti-aging repair cream. The preparationmethod comprises following steps: A, weighing; B, preparation of an aqueous phase material; C, preparation of an oil phase material; D, blending; E, adding; F, disinfecting and packaging. The anti-aging repair composition is added to a mixture of water and oil phases, so that the anti-aging repair effect is realized, and the skin is moistened.

The invention relates to a microbial agent capable of degrading polycyclic aromatic hydrocarbons as well as a preparation method and an application of the microbial agent. The microbial agent comprises the following effective components: mycobacterium gilvum CP13, trichoderma viride and rhamnolipid. The preparation method comprises the following steps: mixing bacterial solutions obtained by respectively culturing mycobacterium gilvum CP13 and trichoderma viride, simultaneously adding a composite carrier of diatomaceous earth and modified peanut shells and rhamnolipid and carrying out microbial immobilization to prepare the microbial agent. The microbial agent has super strong polycyclic aromatic hydrocarbons removal capability and meanwhile has the advantages of low cost and long shelf life; and by virtue of the microbial agent, over 90% of polycyclic aromatic hydrocarbons, such as high-concentration (50mg / kg) pyrene contained in the vegetable garden soil can be removed under conditions of room temperature (20 + / -5 DEG C) and pH of 4-9 within 36 days.

The invention provides a hydrated titanium dioxide-persimmon tannin acrylic resin compound sorbent, a preparation method thereof and the application thereof, wherein, the preparation method of the compound sorbent comprises the steps as follows: silane coupling agents are added in water and is stirred for dissolution, then hydrated titanium dioxide is added and stirred, reaction is performed for 12 hours, and then centrifugation, washing and drying are carried out so as to obtain the modified hydrated titanium dioxide; mixed solution containing sodium acrylate is prepared by mixing N,N'-methylene-bisacrylamide, ammonium persulfate and persimmon tannin solution; n-hexane, anionic surface active agents and the hydrated titanium dioxide that is modified through the silane coupling agents are added in a reaction kettle, reaction is performed for 10 to 20 minutes under the conditions that nitrogen is pumped in and stirring is carried out, then mixed solution is added, stirring is performed, the temperature increases to 75 DEG C, and reaction is performed for 1.5 hours under the stirring condition; and n-hexane is removed through filtration, and vacuum drying is carried out, so as to obtain the hydrated titanium dioxide-persimmon tannin acrylic resin compound sorbent. The compound sorbent with low cost has the compound inorganic-organic advantages, achieves a good pb2 plus adsorption effect, and achieves simple synthesis technological process and high polymerization speed, and is easy to dry.

The invention discloses production equipment and technology of plastic-free tableware packaging paper, and belong to the technical field of papermaking. The technology comprises the following processsteps: mixing and pulping softwood pulp, hardwood pulp and bleached bamboo pulp, blending pulp, adding auxiliary materials, making wet paper sheets, pre-drying, coating and sizing (PVA), post-drying and the like. The qualified plastic-free tableware packaging paper is manufactured by researching pulp selection, pulp proportioning, a pulping process, functional chemical additives added into pulp and the like and adopting in-machine film transfer surface sizing treatment. The one-time formed plastic-free tableware packaging paper has the advantages of being low in comprehensive cost, high in competitiveness, environmentally friendly, easy to recycle and the like, trial-produced products are put into the market to be highly evaluated by users, and economic, environmental and social benefits are quite remarkable.

The invention relates to a solid active bromine bactericidal algicide. The bactericidal algicide comprises, by weight, 30-40% of 2-bromine-4,5-dimethoxy phenyl propionitrile, 5-15% of 3-bromine-1-chlorine-5,5-dimethyl hydantoin, 5-15% of dibromo nitrilopropionamide, 15-25% of diquaternary ammonium activating agents, 10-20% of dibromo-2-cyanoacetamide and 5-15% of bronopol. The solid active bromine bactericidal algicide is advantageous in that, first, the bactericidal performances are strong and the bactericidal speed is fast; second, the application range of the pH value is wide; third, the bactericidal algicide is a bactericidal algicide with oxidizability and is effective to all kinds of microorganisms; fourth, the usage concentration is economical, and the bactericidal algicide with low dosage has strong bactericidal activity; fifth, the bactericidal algicide is suitable for ammonia-containing and nitrogen-containing water systems, and the bactericidal efficiency is not lowered with existence of ammonia; sixth, the bactericidal algicide has good intermiscibility and does not affect the using effects of corrosion and scale inhibitors; seventh, the bactericidal algicide has strong exfoliation; eighth, the bactericidal algicide has small impacts on the environment.

The invention discloses a method for preparing a paper making wet end chemical addition agent by using cassava residue as a raw material; the method comprises the following steps: the cassava residue is beaten and then is washed and dispersed by clean water; after suspended cassava barks and crude fibers are removed, sedimental cassava residues and fine fibers are dehydrated for standby application, are mixed with the crude fibers obtained through winnowing and separation of the removed cassava barks and the crude fibers and are diluted into slag pulp; then the slag pulp is jointly processed by sodium hypochlorite and hydrogen peroxide; the processed slag pulp is ball-milled into powder; a modified liquid reagent is used for carrying out chemical modification on the powder, a modified synthesis mixture is washed and filtrated by an organic solvent and finally filter cakes are dried and powdered so as to obtain the modified cassava residue product. In the method, the process is simple,devices are matured, and simultaneously as a multiple-effect paper making wet end chemical addition agent, the prepared modified cassava residue product is used for reinforcing paper pulp and helpingretention and filtration, has higher economic value and provides a positive approach for effectively solving environmental pollution caused by the abandon of cassava residues.

The invention relates to a method for preparing a surfactant by using lignin thermochemically degraded phenolic products as raw materials. After lignin and high-boiling point alcohol are mixed at a liquid-solid ratio of 3:1 to 5:1, they are liquefied at 150°C to 350°C in the presence of an acidic metal salt catalyst to obtain liquefied phenolic substances. The product is purified and liquefied. After the product is purified, various modification reagents for etherification, esterification, graft copolymerization or crosslinking are added, and the surfactant is modified at 40°C to 90°C to obtain a surfactant. The surfactant prepared by the invention has good water solubility, wide application range and strong surface activity, and the liquefied lignin is suitable for various chemical modifications, and has the characteristics of low cost and wide application range.

The invention discloses a combined organic sodium sulfonate salt flotation agent, which consists of the following components in percentage by weight: 50-90 percent of alkyl sodium sulfonate, 7-30 percent of sodium dodecyl benzene sulfonate and 3-20 percent of butyl sodium naphthalenesulfonic acid. The combined organic sodium sulfonate salt flotation agent can contribute to remarkably enhancing the quality of a low-grade mixed salt, and has short floatation time and high floatation efficiency.

The invention discloses a composite powered calcium sulfate sewage treatment agent and a method for preparing the same. The sewage treatment agent comprises the following materials in weight portion:5 to 10 portions of tartaric acid, 3 to 5 portions of malic acid, 60 to 70 portions of calcium sulfate, 10 to 15 portions of magnesium carbonate, 10 to 20 positions of calcium carbonate, 10 to 20 portions of ferric chloride, 10 to 20 portions of calcium oxide and 2 to 3 portions of polyacrylamide. The method is to mix the materials. Compared with the prior art, the sewage treatment agent and the method have the advantages of multifunction, high efficiency, environment protection, quick sewage treatment speed, short treatment time, broad-spectrum and high-efficiency removal of various pollutants and harmful substances and strong adaptively to the sewage muddiness, wide pH value range and wide water temperature change of the sewage. The sewage treatment agent and the method have high alkalization degree, small corrosion, convenient production and no pollution in the production process, simple product package, convenient transportation and low composite cost.

The invention particularly relates to a technology for removing proteins and heparin-like materials in sodium heparin crude extract liquid. The technology which is a method for recycling the proteins in sodium heparin extraction waste liquid includes adding aluminum salt solution into the sodium heparin extraction waste liquid and stirring the aluminum salt solution and the sodium heparin extraction waste liquid to obtain first solution; adding flocculating agent solution into the uniformly stirred first solution and stirring the flocculating agent solution and the first solution to obtain second solution; allowing the second solution to stand still when a large quantity of flocculated precipitates appear in the second solution; sucking off supernatant and collecting the precipitates; drying the precipitates to obtain the proteins. The technology has the advantages that polyaluminum chloride is high in bridging and adsorption performance, and physical and chemical procedures such as coagulation, adsorption and precipitation can be carried out in an accompany manner in hydrolysis procedures; the polyaluminum chloride structurally comprises morphology-changeable poly-carboxyl complex compounds, is high in flocculation and precipitation speed and wide in pH (potential of hydrogen) value application range and is free of corrosion for pipeline equipment; polyacrylamide with a high molecular weight can be 'bridged' between adsorbed particles to generate floccules and is favorable for settling the particles, low in usage and high in efficiency, and after-treatment can be facilitated.

The invention discloses a high-efficiency corrosion and scale inhibitor. The high-efficiency corrosion and scale inhibitor comprises the following components by mass: 22 to 26% of polyol phosphate, 28 to 32% of organophosphorus, 20 to 24% of copolymer and 21 to 25% of zinc chloride. The pH value application scope of the high-efficiency corrosion and scale inhibitor is 3 to 12. Raw materials used for preparation of the organophosphorus comprise 250 to 300 parts of distilled water, 380 to 420 parts of maleic anhydride, 480 to 500 parts of sodium hypophosphate, 380 to 420 parts of ammonium persulfate and 80 to 100 parts of an additive. The preparation method for the high-efficiency corrosion and scale inhibitor comprises the following steps: preparation of the organophosphorus; and preparation of the corrosion and scale inhibitor. Thus, the high-efficiency corrosion and scale inhibitor has the characteristics of resistance to high hardness and a wide pH value application scope; and the preparation method is simple and has low production cost.