322results about "Natural resin purification" patented technology

A process for producing light color rosins ester resin, preferably based on tall rosin, is described. The process is conducted in the presence of less than 10 weight % of an acid functional organic compound and avoids the need for use of a stoichiometric excess of rosin acid, or a stoichiometric excess of polyol hydroxyl groups. The process allows for the use of lower colored or darker tall oil rosin in the production of low color rosin esters.

A one component adhesive composition is provided, which can be formulated from substantially or totally bio-based, renewable raw materials. Such adhesives can be formulated to have high strength and/or low or substantially no VOC emissions. This can be achieved by utilizing polymers that are derived or extracted from renewable plant materials such as soybeans, corn, sunflowers, wheat, etc. Adhesive compositions in accordance with the invention can include oils. The composition preferably contains bio-based oils only, but need not be completely free of fossil fuel or synthetic based oils. It should also include drying oils and/or similarly acting polymers, co-polymers, and fatty acids. Plasticizers, such as hydrogen oxide, derived from renewable sources are utilized to impart performance properties to the formulated adhesive. Metal napthanates can be used to catalyze the drying and/or curing speed when the adhesive composition is applied to a substrate.

Rosin esters having suitable color, color stability and/or odor to make them useful for non-woven applications, to non-woven products made from and/or comprising rosin esters, and to methods of making and using such rosin esters and products.

The present invention relates to terpene derivative compounds and rosins and sizing compositions comprising such compounds. Compounds of Formula (I) are disclosed in addition to rosins and sizing compositions comprising compounds of Formula (I). Fiber glass strands comprising a plurality of glass fibers at least partially coated with sizing compositions comprising compounds of Formula (I) are also disclosed.

A process for preparing plant extracts is provided. Plant materials, including tropolones, lignins and polar molecules, are mixed with a liquid polar solvent to form an extraction mixture, which is maintained under extraction conditions effective to extract lignins, polar molecules and at least 50% of the tropolones into the polar solvent to form a pregnant polar solvent liquid phase. The pregnant polar solvent phase is separated from the solid plant materials, and mixed with a substantially immiscible nonpolar solvent under conditions effective to partition the tropolones and lignins substantially into the nonpolar solvent and to partition the polar molecules substantially into the polar solvent to form a partitioned nonpolar solvent phase comprising lignins and tropolones, and a partitioned polar solvent phase comprising the polar molecules, and separating the polar solvent phase from the nonpolar solvent phase to obtain a polar plant extract and a nonpolar plant extract.

A method for refining capsicum oleoresins uses a capsicum oleoresin with a low capsaicinoid content. The method includes selecting 6% to 9% of potassium hydroxide as a saponifying agent, and subjecting the mixture to saponifying processing at a temperature between 40 DEG C and 55 DEG C for 4 hours to 5 hours; preparing hexyl hydride and 85% to 95% of ethanol into a mixed solvent, subjecting saponifying matter to multiple extraction, concentrating the extracted capsicum oleoresin under the vacuum and warming condition, respectively recycling the hexyl hydride and the ethanol, dissolving the capsicum oleoresin through ethanol, subjecting the capsicum oleoresin to secondary extraction, stirring the extracted capsicum oleoresin evenly, separating a pigment phase and a capsaicin phase, separately heating the concentrated capsaicin phase and the pigment phase, and respectively recycling the ethanol and ethyl acetate. The method for refining capsicum oleoresin increases the content of capsaicin in the capsicum oleoresin, reduces the residual amount of capsochrome in the capsicum oleoresin, enables the color to be light, improves the product quality, expands the applied range, increases the additional value of products and, enhances the market competitiveness.

The invention provides a method of preparing rosin ester or modified rosin ester from rosin. The method comprises a preparation step and an esterification step for modified rosin. The invention is characterized by further comprising a refining process for rosin carried out before the esterification step for modified rosin, and the refining process comprises a step of distillation. According to the step of distillation, rosin is placed into a distilling still and heated under vacuum, distilled fractions boiling in a range of 180 to 220 DEG C are collected separately, then main fractions are collected, and refined rosin is obtained after the temperature of rosin reaches 270 DEG C.

The invention provides a method for producing rosin by turpentine, which comprises the following steps of melting, clarifying and distilling. The melted turpentine liquid is pressed in at least two higher-placed furnaces by vapor pressure in the melting process. The subsequent clarifying process is performed after the melted turpentine liquid is stayed in the higher-placed furnaces. The rosin product obtained by the method of the present invention can reach the grade of national superfine standard.

The invention relates to a biochemical engineering separating method of natural active products, and especially relates to a method for simultaneously extracting and separating ginger essential oil and ginger oil resin enriched in gingerol in ginger by a supercritical carbon dioxide fluid. The method is characterized in that the pressure and temperature of an extraction kettle is changed, the ginger essential oil containing little 6-gingerol and 6-gingerol-enriched ginger oil resin with large appearance and property difference can be obtained in a separation kettle in different extraction and separation phases. The method uses a separation kettle, the process flow is simple, two important extraction products such as ginger essential oil and ginger oil resin in ginger can be used in the fields of food, cosmetic, medicine and the like and clearly obtained at a time, the investment for equipments and workshops is small, and the large scale production can be carried out.

The invention relates to a method for efficiently, circularly and continuously extracting eucommia gum, eucommia seed oil, eucommia extractum and eucommia resin from eucommia seeds. According to the separation principle of different polarities and different solubility parameters of four substances, the eucommia seed oil, eucommia extractum, eucommia resin and eucommia gum are sequentially extracted by adopting corresponding solvent, the extracts of the four substances are rectified to recover solvents, and the extracts are dried to respectively obtain products, namely the eucommia seed oil, eucommia extractum, eucommia resin and eucommia gum. The method has the characteristics that the shortcoming of resource waste because only one or two components can be extracted from the eucommia seeds in the traditional extraction process is overcome, the maximal resource utilization is realized, the whole process is circular and repeated, the extraction solvent can be circularly utilized, the energy consumption and substance consumption are greatly reduced and the discharge of three wastes does not exist basically.

The invention relates to a processing method of pine resin and belongs to the field of rosin production. The processing method of pine resin comprises the following steps of: a, dissolving, namely dissolving the pine resin by adopting a dissolving solution, wherein the dissolving solution comprises the following components in percentage by weight: 55-82% of turpentine oil, 17.5-44.5% of water and 0.1-0.5% of oxalic acid; b, clarifying and colating, namely placing the dissolved pine resin liquid in a transition pot to be clarified and then colating to obtain colature; c, acid washing, namely adding the oxalic acid for washing; d, washing, namely adding hot water for washing; e, clarifying and carrying out refined filtration, namely placing the pine resin liquid into the transition pot to be clarified and then carrying out refined filtration; and f, heating and distilling, namely placing the pine resin liquid in a rectifying tower to be subjected to the heating and distilling, so that rosin and turpentine oil finished products are respectively obtained. The processing method of rosin provided by the invention has the beneficial effect that the qualities of the rosin and turpentine oil obtained by processing pine resin are excellent, so that demand of downstream industries is met.

The present invention relates to the field of site directed therapy. More specifically it relates to site directed radio therapy. It provides a method for production of radioimmuno conjugates and an apparatus for radioimmuno therapy. The method, conjugates and apparatus can be practicalized without the need for radioactive shielding and/or airtight facilities. Without these restrictions the invention provides a simple and efficient means of therapy at the bed-side of the patient.

Transparent hydroabietyl is produced by: first rinsing turpentine with sterilized water containing low oxygen to remove the colloid chorophyl, suger and protein; then dissolving turpentine to hydrotrect in the accelerating agent of nicke or Pd/C, at 140-200deg.C and 4.0-15.0MPa, reactingfor 0.5-3.0h, finally, filtrating and vacuum distilling to get the product.

The invention relates to a production method of natural resin, and particularly relates to a preparation method of dewaxed and decolorized shellac. The preparation method comprises the following steps: by taking shellac particles as a raw material, adding a 95% ethanol solvent to the shellac particles to obtain a shellac ethanol solution; fully precipitating shellac wax and impurities in the shellac ethanol solution, separating supernatant which accounts for two thirds of the total volume of the solution, performing centrifugal filtration of sediment which accounts for one third of the total volume of the solution to obtain clear liquid, and mixing the clear liquid and the supernatant, wherein the wax content of shellac in the supernatant is less than 0.5%; cooling the shellac ethanol solution obtained by mixing the clear liquid and the supernatant to 10DEG C, performing filtration under reduced pressure to obtain a dewaxed shellac ethanol solution in which the shellac contains less than 0.2% of wax, and performing decolorization of the dewaxed shellac ethanol solution thrice to obtain a dewaxed and decolorized shellac sheet. The method provided by the invention is simple to operate, moderate in decolorization condition and high in product quality and can be used for large-scale production of dewaxed and decolorized shellac.

The present invention relates to a process for the purification of biological feed material and to a process for catalytically converting the purified biological feed material into hydrocarbons suitable as biofuel components. The purified feed material is treated in a reactor system including a catalytically active guard bed phase and a catalytically active main reaction phase. At least one of the phases includes a catalyst bed with a combination of hydrodeoxygenating (HDO) and hydrodewaxing (HDW) catalysts. The process provides biofuel with acceptable ignition and cold flow properties.

A method for producing de-colored shellac by dissolving colored shellac in an aqueous solution comprising an alkaline agent; contacting the colored shellac in the aqueous solution with a sufficient amount of a chlorite salt to achieve de-coloration of the shellac; precipitating the de-colored shellac by neutralizing the aqueous solution with an acid; and recovering the precipitated de-colored shellac from said aqueous solution. The de-colored shellac produced is non-toxic and suitable for human use. Dental compositions comprising the de-colored shellac are disclosed, as well as uses of the de-colored shellac as a food product coating, a nail polish or varnish, and a wood varnish.

The invention discloses a high-efficiency energy-saving low-cost high-quality rosin production process, which comprises the steps of: firstly carrying out turpentine impurity removal and liquification working procedure: firstly adding a little dissolving oil (5-10%) to turpentine, carrying out pressure filtration with a spiral filter press to remove main mechanical impurities in turpentine, heating refined turpentine at 50-70 DEG C, carrying out pressure filtration with a chamber filter press to further separate the mechanical impurities of turpentine, and inputting the purified turpentine liquid to a turpentine liquid storage tank; and then carrying out turpentine liquid distillation working procedure: inputting the purified turpentine liquid to a distillation tank, separating out rosin and turpentine oil, inputting the turpentine liquid with turpentine oil separated into a reaction kettle, carrying out reduced-pressure distillation to distill heavy turpentine oil, then keeping on heating to gasify the rosin liquid, condensing the rosin vapor into rosin liquid, and inputting to a rosin finished product storage tank. The production line equipment comprises the filter press, the turpentine liquid storage tank, the distillation tank, the reaction kettle, the rosin finished product storage tank, a heavy oil storage tank, a turpentine oil storage tank and a heavy turpentine oil storage tank.

The invention provides a degumming process of a capsicum extract, which belongs to the technical field of natural product extraction and separation. The process comprises the following steps of: deseeding, pulverizing and pressing dried capsicums to obtain capsicum particles; mixing and leaching the capsicum particles and a solvent; decompressing and concentrating a leaching liquor to obtain a red capsicum extract; mixing and stirring the red capsicum extract and a composite degumming agent so as to obtain a mixed liquor; and then centrifugally separating the mixed liquor so as to respectively collect a light-phase degummed red capsicum extract and a heavy-phase colloid; and the composite degumming agent is aqueous solution of H3PO4 and NaCl; and the degummed red capsicum extract and low alcohols are mixed, centrifugally extracted from hot and separated so as to obtain a capsicum coat red pigment and a capsicum oleoresin. According to the invention, the obtained capsicum coat red pigment has the advantages of good liquidity, no solidification and caking in low temperature preservation, no layering and no precipitate and contains less than 2% centrifugal precipitate and less than 1% acetone-insoluble material. The hot degree of the obtained sub product capsicum oleoresin is increased by 63% and the color value of the capsicum oleoresin is reduced to less than E10. The degumming process of the capsicum extract, provided by the invention, has the advantages of simplicity, convenience in operation, low cost, safety, environment friendliness and easiness for industrial production.

This process for producing a modified rosin ester resin composition for use in a lithographic ink reacts rosin (A), an acid modified rosin (B) which is obtained by denaturating rosin (A) with an α,β-unsaturated dicarboxylic acid and/or anhydride thereof (d), an oil modified rosin (C) which is obtained by denaturating rosin (A) with a vegetable oil (c) having an iodine value of 140 or more, with a polyol (D) of trihydric or more.