Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1020 results about "Octanol" patented technology

Octanols are alcohols with the formula C₈H₁₇OH. A simple and important member is 1-octanol, with an unbranched chain of carbons. Other commercially important octanols are 2-octanol and 2-ethylhexanol.

Method for producing mixed butanol and coarse octanol by using waste liquid discharged from octanol device as raw material

The invention discloses a method for producing mixed butanol and coarse octanol by using waste liquid discharged from an octanol device as a raw material, which belongs to a method for preparing acyclic monohydric alcohols, and is characterized by using a raw material fractionation unit, a hydrogenation synthesis unit and a product distillation unit, wherein the raw material fractionation unit comprises three fractionation devices: a butyraldehyde fractionation tower, a butanol fractionation tower and a C8 fractionation tower; the hydrogenation synthesis unit and the product distillation unit are suitable for hydrogenating and distilling a butyraldehyde fraction and a C8 fraction from the raw material fractionation unit alternately; and the product distillation unit comprises a light component removing tower device and a heavy component removing tower device. The method for producing the mixed butanol and coarse octanol by using the waste liquid discharged from the octanol device as the raw material, which is energy-saving and environmentally-friendly, can realize the recycling of the waste liquid discharged from the octanol device, reduce the waste water treatment cost of the octanol device and improves the technical indexes of treated water.
Owner:淄博诺奥化工有限公司

Treatment process of 2-ethyl hexanol liquid waste

The invention discloses a treatment process of 2-ethyl hexanol liquid waste. The treatment process is suitable for processing the 2-ethyl hexanol liquid waste discharged by a 2-ethyl hexanol device. The treatment process comprises the following steps: heating the 2-ethyl hexanol liquid waste to 60-100 DEG C and then leading to a middle section of a first rectifying tower; removing moisture and light components from the top of the first rectifying tower under the effect of an entrainer; enabling tower kettle liquid of the first rectifying tower to enter the middle section of a second rectifying tower, so as to obtain a butanol product of which the purity is greater than 98% from the top of the second rectifying tower; enabling the tower kettle liquid of the second rectifying tower to enter the middle section of a third rectifying tower; removing C5-C7 and an octenal component from the top of the third rectifying tower; and enabling the tower kettle liquid of the third rectifying tower to enter the middle section of a fourth rectifying tower, so as to obtain an octanol product of which the purity is greater than 98% from the top of the fourth rectifying tower. The treatment process does not need any fuel; butanol and octanol, of which the purity is greater than 98%, can be effectively recovered, so that the useful components in the 2-ethyl hexanol liquid waste can be fully utilized; the resources are saved; the environmental pollution is also reduced; the treatment process has good economical benefits and social benefits.
Owner:SHANGHAI DONGHUA ENVIRONMENT ENG

Water-based paint for iron casting through lost foam casting die

InactiveCN102921880AHigh temperature strengthSuitable for high temperature breathabilityFoundry mouldsFoundry coresSODIUM METAPHOSPHATECellulose
The invention discloses a water-based paint for an iron casting through a lost foam casting die. The paint comprises refractory aggregate, binders, a suspending agent, additives and a dispersing agent, wherein the refractory aggregate comprises high aluminum powder, zircon powder and pyrophyllite; the binders comprise silica sol or white emulsion, polyvinyl acetate emulsion, bentonite and sodium hexametaphosphate; the suspending agent comprises sodium carboxymethylcellulose; the additives comprise Tween, octanol, sodium carbonate, cryolite and iron oxide powder; and the dispersing agent is water. According to the paint, suitable ingredients are chosen, the content is adjusted, a suitable mixing process is adopted, and therefore performances such as normal temperature and high-temperature strength, suitable high-temperature permeability and good leveling property, suspension property and painting performance of a coating can be satisfied completely. The paint is suitable for gray iron castings with different trademarks and enables the expendable casting die to be stripped with the iron casting easily, particularly for stripping in flakiness of a sintered coating during cleaning, and the possibilities for diverse defect generation on the surface of the iron casting are reduced; and simultaneously, pollution of coating components to the environment is reduced greatly due to the selection of phosphate assistant.
Owner:XUZHOU PENGJU SNAPDRAGON ARTS & CRAFTS

Octanol hydrorefining catalyst and preparation method thereof

InactiveCN101791556AHigh surface active sitesIncreased surface active sitesOrganic compound preparationPreparation by hydrogenationRare-earth elementNickel salt
The invention discloses an octanol hydrorefining catalyst, which belongs to the field of hydrorefining catalytic materials. The prepared catalyst is used for modifying a carrier by using a rare earth element, reducing the amount of an active component of a nickel ion entering a carrier framework and improving the content of surface nickel species; the active component is loaded by adopting a hydrothermal deposition method, the dispersion of nickel salts on the surface of a carrier pore canal by using hydrothermal high-temperature and high-pressure conditions and forming nickel precipitation with proper size at the loading initial period of the active component by using a deposition reaction, so the invention can effectively control the amount of the nickel ions entering the carrier, improve the content of the surface nickel species and simultaneously can avoid the growth of nickel oxide particles; and the catalyst greatly increases the surface nickel active site, effectively improves the utilization rate of the active component of nickel and has higher catalytic reaction activity during hydrorefining the octanol at higher airspeed. The result shows that the hydrogenation rate of an unsaturated substance in crude octanol reaches over 90 percent when the temperature is 120DEG c, the pressure is 2.5MPa, the ratio of hydrogen to liquid for feeding is 8:1 and the airspeed is 30<-1>hour.
Owner:UNIV OF SCI & TECH BEIJING

Production technology for cracking butyl octanol residual liquid into C4 and C8 by means of alkaline liquid cracking agent

The invention relates to production technology for cracking butyl octanol residual liquid into C4 and C8 by means of an alkaline liquid cracking agent. The technology is characterized by comprising the following steps of: preparing the alkaline liquid cracking agent, wherein the alkaline liquid cracking agent consists of sodium hydroxide, potassium hydroxide, water, isopropanol, ethylene glycol, potassium permanganate, ethanol, barium nitrate and diboron trioxide; preheating the alkaline liquid cracking agent and the butyl octanol residual liquid through a preheater and adding into a distilling still, wherein the tower bottom temperature of the distilling still is between 200 and 280 DEG C, the tower top temperature is between 130 and 190 DEG C, and the tower top pressure is between 0.08 and 0.1Mpa below zero; and extracting the C4 and C8 generated by cracking from the tower top of the distilling still, pumping the C4 and C8 into a fractionating column at the downstream for fractionation, and extracting a small amount of uncracked heavy components from a tower bottom pump. The production technology has the advantages of high production capacity, high cracking selectivity, high content of the cracked useful components, low cost, simple process, and batch distillation or continuous distillation.
Owner:山东瑞利尔石油装备有限责任公司

Method for producing mixed butanol and coarse octanol by using waste liquid discharged from octanol device as raw material

The invention discloses a method for producing mixed butanol and coarse octanol by using waste liquid discharged from an octanol device as a raw material, which belongs to a method for preparing acyclic monohydric alcohols, and is characterized by using a raw material fractionation unit, a hydrogenation synthesis unit and a product distillation unit, wherein the raw material fractionation unit comprises three fractionation devices: a butyraldehyde fractionation tower, a butanol fractionation tower and a C8 fractionation tower; the hydrogenation synthesis unit and the product distillation unitare suitable for hydrogenating and distilling a butyraldehyde fraction and a C8 fraction from the raw material fractionation unit alternately; and the product distillation unit comprises a light component removing tower device and a heavy component removing tower device. The method for producing the mixed butanol and coarse octanol by using the waste liquid discharged from the octanol device as the raw material, which is energy-saving and environmentally-friendly, can realize the recycling of the waste liquid discharged from the octanol device, reduce the waste water treatment cost of the octanol device and improves the technical indexes of treated water.
Owner:淄博诺奥化工有限公司

Microencapsulated water-based fire retardant coating and preparation method thereof

ActiveCN105925168AImprove the problem of hydrophilic migrationGood compatibilityFireproof paintsAnti-corrosive paintsEnvironmental resistanceWater based
The invention discloses a microencapsulated water-based fire retardant coating. The coating is prepared from an epoxy-modified water-based polyurethane emulsion, melamino-formaldehyde resin microencapsulated ammonium polyphosphate, polyurethane microencapsulated inorganic particles, hydroxyethyl cellulose, a dispersing agent, a defoaming agent, a mildewproof agent, n-octanol and water. According to the microencapsulated water-based fire retardant coating, a carbon source and an air source are subjected to resinification, the total adding amount of fire retardant is reduced, and due to that fact that too much fire retardant is added, physical damage to obtained materials is reduced; microencapsulation treatment is conducted on ammonium polyphosphate, hygroscopicity and water solubility of hydrophilic fire retardant are reduced, migration of APP is blocked, and the durability of the coating is increased; microencapsulation to inorganic filler is achieved, compatibility of the inorganic filler and a high polymer material is enhanced, the defects of being prone to agglomeration and migration are overcome, and the mechanical property of fire retardant composite material is improved; the obtained coating has the advantages of being green, environmentally friendly, efficiency, durable, stable, attractive and the like, and a related preparation method is simple and suitable for application and popularization.
Owner:湖北合聚高分子材料有限公司

Method for removing chlorine from solution of zinc sulfate

InactiveCN101818262AGood dechlorination effectSatisfy volume balanceElectrolysisKerosene
The invention discloses a method for chlorine from solution of zinc sulfate, which mainly comprises the following: 1, a step of extraction, in which tributylamine is used as an extractant, kerosene or para-octanol is used as diluent, clear liquid of zinc sulfate is mixed with an organic phase for extraction, and chlorine in a water phase is transferred to an organic phase; 2, a step of back extraction, in which back extraction is performed by using ammonia water or solution of sodium hydroxide, chlorine in the organic phase is retransferred to the water phase, and the organic phase is recycled; 3, a step of organic phase regeneration, in which 5 to 10 percent solution of sodium hydroxide is mixed with the organic phase which ages after being used for a certain period of time in a ratio of 1:0.9 to 1:2.5, and the mixture is stirred by an electromagnetic siterr at a high speed for 8 to 15 minutes for regenerating the organic phase; and 4, a step of deoiling, in which raffinate is subjected to active carbon absorption or ultrasonic demulsification so as to remove the organic phase in the raffinate. In the invention, the organic phase and the raffinate can be used circularly, the dechlorination rate is over 85 percent, the electrolytic operation environment is improved, the process flow is simple, and the method can be used for dechlorinating solution of zinc sulfate from wet-method zinc smelting plants and can also be used for dechlorinating wastewater.
Owner:ZHUZHOU SMELTER GRP

Extraction process for preparing electronic-grade cobalt sulfate from cobalt-containing waste material

The invention discloses an extraction process for preparing electronic-grade cobalt sulfate from a cobalt-containing waste material, and relates to an extraction method for cobalt salt. The process comprises the following steps of: performing acidolysis; filtering and separating; removing iron and copper; preparing rough Co material liquid; removing impurities by P204 extraction; and separating Co and Ni by P507 extraction; and the process is characterized in that an N235 extracting agent is prepared from 8 to 12 volume percent of N235, 8 to 12 volume percent of 2-octanol and 76 to 84 volume percent of 206 solution oil; and the prepared N235 extracting agent is added into raffinate of the P204 extraction and is subjected to six stages of extraction, two stages of hydrochloric acid washing, six stages of washing, three stages of ammonia water washing and one stage of sulfuric acid washing. The process has good impurity removal effect; compared with the prior art, the process has the advantages that: one order of magnitude is reduced, particularly, impurities such as cadmium, lead and the like which are difficult to remove are removed by P204 extraction and the P507 extraction, and the impurities reach an extremely low degree. The process has short flow, the comprehensive recovery rate of cobalt is high and the production cost is lower than the average cost of the same domestic industry.
Owner:HUNAN JINYUAN NEW MATERIALS CO LTD

Method for preparing environment-friendly plasticizer by recycling waste resources

The invention relates to a method for preparing an environment-friendly plasticizer by recycling waste resources. The method comprises the following steps of transferring alkali-reduction wastewater containing sodium terephthalate into an acid precipitation tank with a stirring device and adding sulfuric acid to further precipitate terephthalic acid (PTA) solids; carrying out plate-frame filtration on the mixed solution to obtain a crude PTA material; adding the recovered crude PTA material into an esterification reactor with an alcohol-water separation device, adding iso-octanol, heating and dehydrating, adding tetrabutyl titanate as a catalyst and carrying out esterification reaction; after water is no longer produced, stopping reaction and dealcoholizing to obtain a crude DOTP (Dioctyl Terephthalate) product; rectifying the prepared crude DOTP product in a packing-type rectifying tower to obtain a rectified product, adding the rectified product into a neutralization reaction kettle, adding sodium hydroxide lye, stirring and washing with alkali; standing, precipitating and discharging the aqueous solution in the lower layer, adding hot water, stirring and washing with water, standing, precipitating and discharging the moisture in the lower layer, carrying out temperature-raising dehydration, adding an inorganic filter aid and filtering to obtain the pure DOTP product. By the method, the recycling of the waste resources is achieved.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products