44results about How to "Less chemical raw materials" patented technology

The invention discloses an inorganic multifunctional paint taking potassium silicate as the film-forming substance, and a preparation method thereof. The paint is composed of nano TiO2, tourmaline powder, meerschaum, laubanite, China hemp fiber powder, diatomite, titanium dioxide, talcum powder, calcium ash powder, calcium carbonate, kaolin, cellulose ether, and potassium silicate. The inorganic multifunctional paint taking potassium silicate as the film-forming substance does not contain any chemical auxiliary agent, which exists in the conventional emulsion paint; moreover, takes inorganic potassium silicate as the film-forming substance, thus does not contain any organic compound, saves the chemical raw materials used in the conventional emulsion paint, avoids to generate the volatile organic compounds (VOC), which pollutes the environment, at the same time; integrates the functions of low carbon, saving energy, decomposing formaldehyde, purifying the air, releasing the negative ions, modulating the air humidity, preventing fire, insulating the sound, killing the bacteria, and the like; and can be widely applied to the decoration of outer walls of buildings.

The invention relates to wastewater treatment, in particular to an application of modified fly ash zeolites in the treatment of paper making wastewater. Firstly, fly ash zeolites which are synthesized in low cost undergo the modified treatment by modifying agent; secondly, the modified fly ash zeolites are put in a reactor to fully contact the paper making wastewater; thirdly the paper making wastewater is treated; the removal rates of COD and chrominance are used to check the treatment effect of the fly ash zeolites on the paper making wastewater. The application has the advantages that the modifying agent is low in price and easily bought, and the modification process and the treatment process of the paper making wastewater are simple, and simultaneously the environmental pollution caused by fly ash solid wastes is solved, and the application range of the fly ash zeolites is widened, so that the application has the active use value.

The invention discloses novel sludge coal-water slurry and a preparation method thereof. The method comprises the following steps: (1) mixing civil sludge and a sludge modifier to obtain a mixture, and adding water into the mixture to obtain mixed liquor, wherein the mass of the mixed liquor is twice that of the mixture; (2) inputting the mixed liquor into a fluid shock wave treatment device, and performing high-pressure treatment to obtain modified sludge; (3) crushing raw material coal into coal dust with particle sizes of smaller than 3mm, delivering the coal dust and the modified sludge to a grinding machine, adding a dispersing agent, and grinding to obtain the sludge coal-water slurry. According to the novel sludge coal-water slurry and the preparation method thereof, alkaline papermaking black liquid is used for modifying the sludge, and in other words, waste is treated by waste, and alkaline substances in the black liquid are fully utilized, so that a chemical raw material serving as a modifying agent is saved; in addition, lignin in the black liquid can be used as a water-coal slurry additive, and can partially or completely replace the water-coal slurry additive, so that the cost of a pulping additive is lowered.

The invention provides a compound process for preparing ammonium, methanol and carbon monoxide. The current processes for preparing ammonium, methanol and carbon monoxide are independent, which means large investment and waste of chemical raw material. The invention provides a compound process for preparing said three products, which is characterized by smaller investment and saved raw material.

The invention discloses a method for preparing billet yarns into color yarns, aiming at providing a color yarn preparing method which can obviously reduce consumption of heat and water in the color yarn manufacturing process and reduce pollution to the environment in the production process. The method comprises the following sequential formulas and processes of: a degreasing and bleaching formulaand process, a washing process, a neutralizing formula and process, a washing process, a dyeing formula and process, a cooling and washing process, a neutralizing formula and process, a soaping formula and process, a color fixing formula and process, a dehydrating process and a drying process. The main point of the technical scheme of the method is that the ultrasonic effect is added in the yarn degreasing, bleaching and dip-dyeing process according to the characteristic that ultrasonic waves with high strength and high power can generate a lot of ultramicro bubbles and instant high temperature and high pressure in a solution. Compared with the traditional method, by means of the method for preparing billet yarns into color yarns, heat, water and organic dye for producing color yarns withsame quantity can be obviously reduced; and most importantly the pollution to the environment in the production process is greatly reduced.

The invention relates to a method for producing water-insoluble organic acid by bipolar membrane electrodialysis. The method comprises the steps that a sodium sulfate aqueous solution is pumped into a bipolar membrane electrodialysis device to produce sulfuric acid and sodium hydroxide, the produced sulfuric acid is used for acidifying water-insoluble organic acid sodium salt to produce the water-insoluble organic acid and sodium sulfate, the produced water-insoluble organic acid solid is filtered and collected to obtain the required product, and the sodium sulfate aqueous solution used as a filtrate is used as a feed liquid to form a closed production loop. By the adoption of the method for producing the water-insoluble organic acid by the bipolar membrane electrodialysis, the full-closed and cycled clean production of the water-insoluble organic acid such as phenylglycine can be realized, so that chemical materials can be saved and a large number of high salinity wastewater can be avoided, the environmental pollution is reduced, and industrial application values and environmental benefits are obvious.

Provided is a method for manufacturing recycled paper by adding loofah sponge fiber. The method comprises the steps that loofah sponge undergoes dry-smashing treatment; degumming treatment is performed; paper products are recovered, and coarse cutting, shake-screening, centrifugal classification and fine cutting treatment is performed; classified recovered paper chippings are soaked, stirred, filtered and stirred to produce pulp; degummed loofah sponge fiber chippings and the recovered paper pulp material are mixed and stirred according to the ratio of 1:9 to 1:1; a dye, a dye-fixing agent and starch are added or visible loofah sponge fiber chippings are supplemented for mixing and stirring treatment; pulp taking for papermaking, press mold water absorption, hot-air constant-temperature drying, paper taking through scrapers and press-polishing and paper rolling are performed to obtain a dyed loofah sponge recycled paper finished product. The fiber content of the recycled paper is supplemented by adding the loofah sponge fiber, and the adsorption and coloring properties of the recycled paper can be improved while the paper is flexible. In addition, in the mode of classified pulping of the recycled paper, the high-quality recycled paper output rate can be greatly improved, added economic benefits can be brought to enterprises by combining with natural texture of the loofah sponge, and meanwhile the method has the special significance on environmental protection.

The invention discloses a battery shell discharge disc barrel plating device. The device comprises a frame body and hangers; a degreasing tank, a water washing tank, an acid washing tank, a water washing tank, an electroplating tank, a bleaching tank, a neutralizing tank, a rust preventing tank, a drying tank and a cooling tank are formed in the middle part of the frame body in sequence; an ultrasonic processing device is arranged in the degreasing tank; external circulating filter devices are respectively arranged out of the degreasing tank and the electroplating tank; a roller is arranged on the frame body, adopts a mechanics symmetry structure, and is fixed with multiple net baskets; and the net basket s are connected with the hangers for placing battery shells. A battery shell discharge disc barrel plating process comprises the flows of: feeding-degreasing 1-degreasing 2-degreasing 3-water washing-acid washing-water washing-electroplating 1-electroplating 2-electroplating 3-bleaching-neutralizing-rust preventing-drying 1-drying 2-drying 3-cooling-discharge. The device improves the product quality when reducing the cost, reduces the sorting efficiency and the arrangement and container loading labors, and greatly improves the productivity.

The invention provides a preparation method of 4, 4-bi(4-aminophenoxy) biphenyl, aiming at solving the problems that the existing method for preparing 4, 4-bi(4-aminophenoxy) biphenyl costs a long time and is complex in process. The method specifically comprises the following steps of: adding 4, 4-bi(4-nitrophenoxy) biphenyl and a palladium/carbon catalyst to an alcohols solvent; transferring into a reaction kettle; filling nitrogen to replace air; filling hydrogen; reacting for 3 to 4 hours at 60 to 70 DEG C; replacing with N2 gas; filtering again; collecting a liquid phase substance; cooling until reaching room temperature; filtering again to obtain a solid phase; and drying in a vacuum manner at room temperature, thus obtaining the 4, 4-bi(4-aminophenoxy) biphenyl. The method costs a little time for reaction, is obvious in energy conservationsaving and consumption reductionreducing, and simple in operation; a small amount of chemical raw materials related are used; the product yield is high and reaches 85%; and the purity reaches more than 99%.

The invention relates to a method for conditioning municipal rest sludge with industrial epoxy resin wastewater, which belongs to the technical field of environment engineering. The essentials of the method are as follows: a certain amount of industrial epoxy resin wastewater is added into sludge with 99 percent of water content; the volume ratio of the sludge to the high-salinity industrial epoxy resin wastewater which serves as the conditioner is 1:1 to 1:2, so that the water content of the sludge is reduced when the sludge is changed from a free water form to a sludge floc form so as to meet the pre-treatment requirement before sludge treatment, i.e. meet and satisfy the requirement on the 80 percent of pre-treatment water content of municipal sludge, and then carry out landfill, burning or other agricultural treatment. The method for conditioning municipal rest sludge with industrial epoxy resin wastewater has the advantages of simple process and convenient and feasible operation.

The invention discloses a rex rabbit fur cleaning production tanning process, and relates to rex rabbit fur cleaning production tanning processes. The process sequentially comprises the following steps of (1) carrying out soaking, (2) removing meat, (3) carrying out degreasing, (4) carrying out pickling and softening, (5) carrying out re-pickling, (6) carrying out tanning, (7) carrying out fur discharging and water controlling, and then carrying out neutralization and fat adding as well as subsequent drying finishing operation. In the degreasing step, a degreasing solution is used as a solution for soaking treatment; and treatment solutions of the soaking and softening step, the re-pickling step and the tanning step can be repeatedly reused. Compared with traditional fur chrome tanning andaldehyde tanning technologies, a formaldehyde-free chrome-free tanning technology is adopted, the method that the treatment solutions are repeatedly used is adopted, therefore, the fur tanning process can save chemical raw materials by 60% or more, and the water consumption can be reduced; the emission of harmful substances can be reduced, and no formaldehyde and chromium elements are contained in the sewage; and moreover, a fur white board of a fur treated by adopting the process is white, and better conditions are provided for dyeing.