75results about How to "Raw materials are renewable" patented technology

The invention relates to a method for preparing aromatic hydrocarbon by carrying out catalytic hydrodeoxygenation on lignin. A catalyst used in the method provided by the invention comprises two active components, namely an acid site being one or combination of more than one of transition metal elements niobium, tantalum, zirconium, molybdenum, tungsten and rhenium and a hydrogenation or hydrogen transfer active site being one or more than one of ruthenium, platinum, palladium, iridium, iron, cobalt, nickel and copper. According to the method provided by the invention, a phenol group, a guaiacol group, a syringa phenolic group compound, natural lignin and industrial lignin are taken as raw materials, water is taken as a solvent, high selectivity catalytic hydrodeoxygenation is carried out at the temperature of 180-350 DEG C and hydrogen pressure of 0.1-5MPa or with methyl alcohol, isopropyl alcohol and formic acid as hydrogen sources, so that C6-C9 aromatic hydrocarbon is obtained, the highest mass yield of aromatic hydrocarbon is 10%, and content of aromatic hydrocarbon in product oil can be up to more than 75%. The method provided by the invention has the advantages that reproducible natural biomass can be used as a raw material, and the raw material is cheap and available; the water is taken as the solvent, so that a reaction process is environment-friendly; and content of aromatic hydrocarbon in the product is high, and reaction conditions are mild.

The invention discloses a green environment-friendly soluble stamping and drawing oil and a preparation method thereof. The preparation method comprises the following steps: with sulfonic acid ionic liquid as a catalyst and waste grease, non-edible vegetable oil or fatty acid methyl ester/fatty acid ethyl ester as a raw material, adding hydrogen peroxide and carrying out heating and stirring for a reaction so as to prepare epoxidized modified grease, wherein the molar ratio of the raw material to hydrogen peroxide is 1: 1 to 1: 5; with trimethylol propane and fatty acid or fatty acid methyl ester/fatty acid ethyl ester as raw materials and sulfonic acid ionic liquid as a catalyst, carrying out heating and stirring for a reaction so as to prepare hydroxyalkylated fatty acid ester, wherein the molar ratio of trimethylol propane to fatty acid or fatty acid methyl ester and fatty acid ethyl ester is 1: 1.5 to 1: 5, and the molar ratio of trimethylol propane to ionic liquid is 1: 0.001 to 1: 0.2; uniformly mixing epoxidized modified grease, hydroxyalkylated fatty acid ester and an extreme pressure agent under stirring to obtain the mixture component A; uniformly mixing a surfactant andan osmotic agent at a normal temperature and a normal pressure under stirring so as to obtain the mixture component B; and adding the component A, the component B, an antirust agent and other additives into a reaction kettle and carrying out stirring at a temperature of 40 to 80 DEG C for 10 min to 1 h so as to obtain a final product.

The invention relates to a method for production of a diesel oil fraction and an aviation fuel fraction by use of animal and plant oils and fats, and the method comprises the following steps: a) performing refining processing on the animal and plant oils and fats; b) performing catalytic hydrogenation and deoxidation to obtain saturated linear alkanes and propane; c) performing hydroisomerization and hydrocracking processing to obtain an alkane material flow with higher branched chain degree; d) separating to obtain liquid hydrocarbons and gaseous hydrocarbons with the boiling point within the boiling point range of diesel oil, aviation fuels and naphtha; e) directly collecting the diesel oil fraction as a product, or cycling in whole or in part to continue isomerization and cracking reaction to increase production of the aviation fuel fraction; and f) mixing propane gaseous hydrocarbon and naphtha for steam reforming hydrogen production reaction, separating and purifying the obtained hydrogen to enter into a circulating hydrogen system; the method is used in the production of the renewable diesel oil and aviation fuels with excellent combustion performance and cold flow performance, and meanwhile efficient utilization of by-products and in-system supplement of hydrogen consumption can be realized.

The invention discloses a method for dyeing silk broadcloth by using the pollen of lily as a natural dye and belongs to the technical field of textile dyeing and finishing. The method comprises the following steps of: soaking fresh or dried dark-red lily pistil, heating and performing suction-filtration to obtain a dye solution; adding silk broadcloth fabric which is refined, and dyeing the silk broadcloth fabric; and adding different mordants for mordanting and thus obtaining silk fabric with different colors. The method has the advantages of low cost, simple process, high performance, high additional value, non-allergic and non-carcinogenic to skin, and the like; raw materials are inexpensive, easy to get, and reproducible; and taking of dyeing products is safe. Particularly, by taking plant ash as a mordant, pollution is avoided. The method is environment-friendly and energy-saving, and clothes which are made of fabric dyed by using the method are natural, environment-friendly and nonirritating to the skin.

The invention discloses a preparation method of a polylactic acid/modified nanocellulose composite barrier material. The preparation method comprises the following steps: (1) modifying the nanocellulose through a carboxylic acid esterification method; (2) preparing the polylactic acid/modified nanocellulose composite barrier material through a Pickering emulsion method. According to the preparation method disclosed by the invention, chemical modification is carried out on the surface of the nanocellulose by adopting a carboxylic acid type substance; the carboxylic acid type substance can be used as a reactant and also has the effect of a solvent medium; a great use amount of an organic solvent is avoided by the method and the carboxylic acid type substance can be recycled and purified, andcyclically utilized, so that real environment-friendly and sustainable development is realized. The composite material is prepared by adopting the Pickering emulsion method; in a process of forming emulsion, the two materials are uniformly dispersed and a subsequent high-pressure homogenization process is not needed. The high-barrier composite material disclosed by the invention has good barrierperformance and mechanical properties and is a relatively ideal composite barrier material.

The invention relates to a method for preparation of a benzene ring phenol compound from alkali lignin. At a reaction temperature of 150DEG C-300DEG C, under a hydrogen pressure of 0.1MPa-13Mpa, under the action of a metal catalyst, in a solvent containing choline ionic liquid, alkali lignin is taken as the reaction raw material, hydrogenation degradation of alkali lignin is carried out to prepare the benzene ring phenol compound. Specifically, the solvent containing choline ionic liquid can be one of a solvent only containing choline ionic liquid, a mixed solvent composed of choline ionic liquid and an inorganic solvent, or a mixed solvent composed of choline ionic liquid and an organic solvent; and the metal catalyst is raney nickel and/or loaded metal catalyst. The method provided by the invention has the significant advantages of cheap and easily available raw materials, simple catalyst preparation process, easy recovery, easy separation of product and the like.

The invention discloses a preparation method of novel biological matrix non-soap type core-shell structure water-based acrylic acid emulsion. The preparation method comprises the following steps: 1) adding fatty acid, monobasic acid and polyol with natural source according to a certain proportion to prepare an alcohol acid intermediate; 2) adding a certain amount of polybasic acid and anhydride into the alcohol acid intermediate prepared in the step 1 according to a certain proportion and dissolving into water to prepare an alcohol acid aqueous solution; and 3) adding an acrylic acid comonomerin the alcohol acid aqueous solution in the step 2 at a time or in batches, adding an initiator, a reducing agent, a catalyst, a molecular weight regulator, reacting at 30 to 95 DEG C for 10 to 90 minutes, adding aids such as a crosslinking agent, a sterilizing agent, preservative, a stabilizer and a defoaming agent as required, and finally obtaining the novel biological matrix non-soap type core-shell structure water-based acrylic acid emulsion. The emulsion has the advantages of environmental friendliness, reproducible raw materials, low cost, high drying speed, wide and adjustable film-forming temperature and hardness and the like, and is favorable for application and popularization of biological matrix concept products.

A thermosetting bamboo sand composite pressure pipe comprises a inner liner layer (1), an inner reinforcement layer (2), a sand adhesive layer (3), an outer reinforcement layer (4) and an outer protection layer (5) arranged respectively from an inside to an outside in a radial direction thereof. The inner reinforcement layer (2) formed by winding bamboo, a thickening layer (3) formed by stirred ore and adhesive, and the outer reinforcement layer (4) formed by winding bamboo are arranged sequentially from an inside to an outside between the inner liner layer (1) and the outer protection layer (5). The composite pressure pipe is energy-saving and environmental-friendly, raw production materials are recyclable, and a price is low.

The invention discloses a tung oil-based polyol and a preparation method thereof. The preparation method comprises following steps: tung oil, an organic metal complex catalyst, and a hydroxylation reagent are mixed at a certain ratio, and are heated to 50 to 70 DEG C; under violent stirring, a hydrogen peroxide solution is added dropwise, adding speed is controlled so as to maintain the reaction temperature to be 70 to 90 DEG C, after adding of the hydrogen peroxide solution, reaction temperature is maintained for 3 to 5, and reaction is stopped; an obtained reaction system is subjected to filtering so as to separate the solid catalyst, is allowed to stand for layering so as to separate a water phase, and is subjected to reduced pressure distillation so as to obtain the tung oil-based polyol. The yield of the tung oil-based polyol is higher than 92%; product hydroxyl value ranges from 120 to 270mgKOH/g; acid value is lower than 1.0mgKOH/g; water content is lower than 0.1wt%; and the tung oil-based polyol can be used for preparing polyurethane materials.

The invention discloses a preparation method of novel monohydroxy biology-based epoxy resin, which belongs to the technical field of chemical industry. The method comprises the following steps of: reacting cardanol glycidyl ether with unsaturated fatty acid or cardanol to generate monohydroxy unsaturated biology-based resin A; and performing epoxidation on unsaturated double bonds on an aliphatic chain of the resin A to obtain monohydroxy epoxy resin with high biology content. The novel epoxy resin has the characteristics of environment-friendly and reproducible raw materials, simple synthesis process, high stability, high heat resistance and high electric insulating property after curing, and the like; the biology content is over 90 percent, and the epoxy value is up to 0.28-0.51eq/100g; and the method is suitable for the fields of coatings, composite materials, casting materials, electronic electrical appliance materials, bonding agents, resists and the like.

The invention provides application of a hydrotalcite-based catalyst in conversion of high-concentration sugar into 1,2-propylene glycol, and belongs to the technical field of energy and chemical engineering. A hydrotalcite precursor is prepared by adopting a coprecipitation method, then metal is introduced by utilizing dipping, adsorption and exchange methods, a metal-promoted metal-composite oxide catalyst is obtained by roasting and reduction, and the catalyst shows relatively high selectivity in a reaction of catalytically converting high-concentration sugar into 1,2-propylene glycol. The catalyst provided by the invention has the advantages of simple synthesis, high catalyst activity, good stability and the like, and the reaction has the characteristics that the raw materials are renewable resources and the atom economy is high. Besides, compared with other technologies for preparing 1,2-propylene glycol by taking biomass as a raw material, the process has the advantages of simplereaction process, high space-time yield, convenience in industrial production and the like.

The invention discloses a degradable and environment-friendly anti-seepage film for an oil field and a preparation method of the degradable and environment-friendly anti-seepage film. The degradable and environment-friendly anti-seepage film is prepared from the components by weight as follows: polylactic acid, poly (butyleneadipate-co-terephthalate), plant fibers, glycerin or epoxidized soybean oil and inorganic filler. The preparation method comprises specific preparation steps as follows: weighing the polylactic acid, poly (butyleneadipate-co-terephthalate), the plant fibers, glycerin or the epoxidized soybean oil and the inorganic filler; adding the raw materials to a high-speed mixer for uniform mixing; adding the mixture to a hopper of a twin-screw extruder, and obtaining modified resin after brace granulating; placing the modified resin in a drying machine for full drying, and putting the dried modified resin in a cast sheet machine to obtain the degradable, environment-friendly and anti-seepage film for the oil field. The film can be completely biodegraded in the nature after used, degradation products meet EN13432 standards for compostable and are non-toxic and harmless to soil, and the technical standard for environment requirements is high. The preparation method is simple in process, easy to control and suitable for industrial mass production.

The invention discloses a bio-based alkylthiophosphoric acid or a derivative thereof, a preparation method and an application thereof. This bio-based alkyl phosphorothioate has a structure shown in formula (I): where R ¹ , R ² , at least one of X, Y, Z, W, M from bio-based raw materials; R ¹ , R ² Independently be a hydrocarbon group, a hydroxyl group, a carbonyl group or a heteroatom; and at least one of X, Y, Z, W contains a sulfur atom, and the rest are arbitrarily selected from O, S atoms; and M is H or another one having the formula (I) Derivative groups of molecules of the shown structure. In the synthesis process of the bio-based thiophosphoric acid or its derivatives of the present invention, at least one raw material is derived from bio-based raw materials, that is, natural and renewable raw materials, which have the advantages of greenness, environmental friendliness, renewable raw materials, and energy saving. It can be widely used in the fields of lubricating oil, grease, mine flotation agent, pesticide, flame retardant and rubber accelerator.

The invention discloses a preparation method of bacterial-cellulose-based composite for flocculating decolorization of printing-dyeing wastewater. The method is characterized in that bacteria are dynamically fermented and cultured to obtain bacterial cellulose secreted in a medium, and a porous absorbing material is supported in the purified bacterial cellulose to obtain the bacterial-cellulose-based composite for flocculating decolorization of printing-dyeing wastewater. The preparation method is simple to perform and low in production cost; the composite prepared herein is effectively applicable to the flocculating decolorization of printing-dyeing wastewater and the like, and the composite itself is green and biodegradable and has important applicable value in the field of flocculating decolorization.

The invention discloses a degradable high-barrier composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: dissolving 6.0 gof tapioca starch in 100 ml of distilled water, and keeping in a water bath at 80 DEG C for stirring in for 30 min to obtain a tapioca starch solution; dissolving 9.0 g of polyvinyl alcohol in 100 mlof distilled water, and keeping in a water bath at 95 DEG C for stirring for 30 min to obtain a polyvinyl alcohol solution; dissolving 3.0 g of chitosan in 100 ml of a 5% acetic acid solution, and ultrasonically dispersing in an ultrasonic cleaner for 30 min to obtain a chitosan solution; adding the polyvinyl alcohol solution and the chitosan solution to the tapioca starch solution, adding 10mL ofan absolute ethanol solution for defoaming treatment, adjusting the pH of the solution to 4.0, stirring in a water bath at 90 DEG C for 30 min, adding a certain amount of plasticizer and cross-linking agent, after the stirring reaction is finished, performing vaccum degassing on a film solution, and finishing the vaccum degassing until no bubble is produced in the solution to obtain a tapioca starch/polyvinyl alcohol/chitosan thin composite material. The high barrier composite material has the advantages of good barrier property, degradability and the like, and is an ideal composite material.

The invention discloses a preparation method based on citric acid for copolycarbonate. The method comprises the following steps: performing a reaction on citric acid and concentrated sulfuric acid toprepare dimethyl acetone dicarboxylate, performing a Weiss-Cook condensation reaction on the dimethyl acetone dicarboxylate and methylglyoxal to prepare an intermediate disodium salt, performing decarboxylation on the intermediate disodium salt by using a mixed solution of glacial acetic acid and hydrochloric acid to prepare 3a-methyltetrahydropenten-2,5(1H,3H)-dione, performing reduction on the 3a-methyltetrahydropenten-2,5(1H,3H)-dione by using sodium borohydride, performing extraction by using trichloromethane, performing methanol recrystallization to obtain 3a-methyloctahydropenten-2,5-diol, and performing bulk polymerization on the 3a-methyloctahydropenten-2,5-diol, diphenyl carbonate and aliphatic diol by using lithium acetylacetonate as a catalyst to obtain the 3a-methyloctahydropenten-2,5-diol copolycarbonate. The synthetic method provided by the invention has a simple process and mild reaction conditions, and the raw materials are environmentally friendly, cheap and easy to obtain.

The invention relates to a preparation method for tung oil polyhydric alcohol with high hydroxyl value. The method comprises the following steps: (1) mixing tung oil, carboxylic acid, an acid catalyst, a hydroxylation reagent and deionized water, heating to 35-45 DEG C, dropwise adding a hydrogen peroxide solution while stirring while maintaining the temperature at 40-65 DEG C, and maintaining the reaction temperature for 2-8h after the ending of the dropwise adding, standing for layering after the ending of the reaction, and separating a water phase, thereby acquiring an oil phase; (2) mixing the oil phase with hydroxy-containing amine agents, adding ethyl alcohol and an inorganic acid catalyst, heating to 30-40 DEG C under nitrogen protection, dropwise adding an aldehyde agent while stirring, heating to 50-90 DEG C while violently stirring and continuously reacting for 1-5h after the ending of the dropwise adding, standing for layering after the ending of the reaction, neutralizing the oil phase, washing with water and performing reduced pressure distillation, thereby acquiring the tung oil polyhydric alcohol with high hydroxyl value. According to the invention, the hydroxylation agent is added in the epoxidation process, so that a cross-linking side reaction can be effectively avoided, a tung oil conjugated triene bond after loop opening is replaced, the cross-linking can be effectively avoided in the amine methylation process and the tung oil polyhydric alcohol with high hydroxyl value is acquired.