443 results about "Solid base" patented technology

Methods are presented to induce a screenout during a subterranean formation fracturing or combined fracturing and gravel packing treatment having a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble material, injecting proppant slurry, and causing hydrolysis and dissolution of the solid base-soluble material by adding base so that leak-off increases, the concentration of proppant in the fracture increases, and the proppant screens out. A method of gravel packing with a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble material, injecting gravel, and causing hydrolysis and dissolution of the solid base-soluble material by adding base. Methods of slowing or accelerating the hydrolysis and dissolution are given, and addition of bridging-promoting materials is included.

The invention discloses a composite type artificial algal reef comprising a mature algal reef and a seedling reef. The mature algal reef comprises a solid base. The upper surface of the solid base is embedded with a metal frame, wherein the shape of the metal frame is identical to that of the upper surface of the solid base and the size of the metal frame is identical to that of the upper surface of the solid base. A conch net bag is arranged in the metal frame. The center of the upper surface is embedded with a metal stand column. A steel ring is welded to the upper end of the stand column. A plurality of seedling ropes are fixed between the metal frame and the steel ring. The seedling reef is fixed to the side face of the solid base of the mature algal reef, and algal seedlings are attached to the seedling reef. By the adoption of the composite type artificial algal reef, the attaching effect of alga is guaranteed, the repair period of an algae field is shortened, the success rate of repair and reconstruction of the algae field is improved, the adhesive rate of the seedlings is increased, and the seedling reef is firm, durable, small in size, light, and convenient to carry; the net bag made of waste conches is placed in the metal frame, and a biophile reef can be composed through diffusion and attachment of spores of fronds on the seedling ropes; resource utilization of the waste conches is achieved, and composite type artificial algal reef has the advantages of being economical and easy and convenient to use.

A solid state fermentation (SSF) method is provided which is effective for both small- and large-scale fungal cultivation. Also provided is SSF media for fungal cultivation. The media preferably contains a carbon source and nitrogen source to provide a carbon to nitrogen ratio of about 5:1 to about 25:1 by weight. The media may also contain a vitamin and an inorganic substance. A preferred SSF medium contains malt extract, yeast extract, peptone, glucose, water, solid base, and calcium carbonate or gypsum. Before propagating fungal mycelia in the SSF medium, the mycelia may be pre-cultivated in a solid culture medium and then in a liquid medium. Although the SSF method can be used in growing most fungi, preferred fungi include Cordyceps sinensis, Ganoderma lucidum, Antrodia camphorata, Trametes versicolor, and Agaricus blazei. The SSF method not only produces high yield of fungi, but also stimulates the production of fungal metabolites, particularly the kinds with pharmaceutical and medicinal activities. Cordyceps sinensis is preferably grown to produce the active compound H1A which is a derivative of ergosterol.

The invention discloses a solid base catalyst for preparing bio-diesel, characterized in that porous material with the same cubage is dipped in alkali metal or alkaline earth metal soluble salt solution and transition metal element or thulium soluble salt solution, whose weight proportion is that porous material: alkali metal or alkaline earth metal soluble salt: transition metal element of thulium soluble salt is 1: 0.02-1: 0.001-0.2; it is dried, baked, rubbed and screened to be obtained. The invention is provided with good catalytic performance, easy treatment after transesterification, no waste liquid generated and easy separation. It can be used repeatedly and it is easy to be used in industry.

Improved composite microarray slides for use in micro-analytical diagnostic applications are disclosed. Specifically, composite microarray slides useful for carrying a microarray of biological polymers on the surface thereof including composite microarray slides having a porous membrane formed by a phase inversion process effectively attached by covalent bonding through chemical agents that comprise anchor/linker moieties to a substrate that prepares the substrate to sufficiently bond to the porous membrane formed by a phase inversion process such that the combination produced thereby is useful in microarray applications and wherein the composite microarray slides are covalently bonded to a solid base member, such as, for example, a glass or Mylar microscope slide, such that the combination produced thereby is useful in microarray applications. Apparatus and methods for fabricating the composite microarray slides are also disclosed.

A cooking apparatus and method is provided which includes a rotatable food support member for supporting a food item thereon. A drive mechanism is connected to the food support member for rotating the food support member. The cooking apparatus further includes upper and lower housings disposed above and beneath a portion of the food support member. The upper and lower housings include an upper and lower heating member respectively with each of the upper and lower heating members providing a heat output which varies from a first end adjacent to an outer edge of the food support member to a second end adjacent to an inner center portion of the food support member, wherein the heat output is greater at the first end than at the second end. The drive mechanism rotates the food support member with the upper and lower heating members applying heat to the food support member to cook the food item contained thereon. Preferably, the food support member includes a solid base portion for supporting the food item.

A yoga block in the preferred embodiment of the present invention is a prism-shaped triangular block that provides a stable and solid base on all sides, horizontally and vertically, and is equipped with ergonomically placed hand grooves and multiple level hand slots for tailored use. A yoga block that is prism-shaped and triangular can benefit beginners and advanced yoga practitioners alike in the journey to refine their practice through safe and proper alignment various yoga postures. Furthermore, the present invention in the preferred embodiment is enhanced with large slots at differing height levels, which allows for easy and accurate tracking of improvement and personal goals, creating a truly multi-functional, cost-efficient item for manufacture. A yoga block in the preferred embodiment is preferably composed of lightweight yet sturdy materials such as: foam, cork, or natural wood, but is in no way limited to these suggested materials.

A lubricant in the form of a water or oil insoluble solvent in oil emulsion is described where a base (soluble or dispersible in said oil-insoluble solvent or water) is present in the dispersed phase. These lubricants are beneficial in various applications such as internal combustion engines where the oil needs enough basicity to neutralize any inorganic acids generated by sulfur present in the fuel.

The invention relates to the technical field of the inorganic nanometer material, and relates to a method for preparing the ordered mesoporous carbon with an organic template method. Segmented copolymer is adopted as the structural guiding agent, and the resin is adopted as the precursor of the carbon, and the solid base is adopted as the catalyst, organic/organic compound film is assembled in the insoluble agent through the sol-gel technique, and then the film is charred to be the ordered mesoporous carbon. The organic/organic compound that is obtained by assembling the segmented copolymer and the resin in the alkaline insoluble agent has more stable tri-dimensional cross-linked network structure than the synthesized product in the acid body system; the direct charring volume retraction and collapse is small, and the ordered mesoporous carbon is easier to be obtained.

The invention discloses a solid base catalyst for synthetizing carbonic acid glyceride by a transesterification method. The solid base catalyst is a supported solid catalyst formed by an R2O/MexOy molecule, wherein R is an alkali metal element; MexOy is a metallic oxide carrier; O is an oxygen element; x and y are quantities of metal and oxygen atoms in the metallic oxide carrier molecule, and the content of alkali metal oxide in the catalyst is 0.1-15wt%. The solid base catalyst has the advantages that the solid base catalyst is easy to prepare; the product and the catalyst are simply separated; the catalyst can be recycled; and the carbonic acid glyceride is high in productivity, and the environment is not polluted.

The invention discloses a making method of biological diesel catalyzed by solid alkaline, which comprises the following steps: adding alcohol into reactor; adding one or more of Mg (OCH3)2, Ca (OCH3)2 and Sr (OCH3)2 as solid alkaline catalyst; adopting alumina, silica or honeycomb ceramics as carrier to prepare solid alkaline catalyst; or reacting primer of catalyst and corresponding alcohol to make catalyst; or adding consolute agent and alcohol material into reactor; adding fat into reactor; heating; starting catalytic reaction; decompressing; filtering; laminating; obtaining the product and rough glycerine.

This invention involves magnetic solid base catalyst, its components including magnetic material and metal oxide or magnetic vector with a mixture of metal salt as a catalyst, activity group is alkali metal salts. Their preparation methods: magnetic material and metal oxide or metal salts fully mixed grinding and dispersed evenly to join the binder, and then roasted and insulation, get a magnetic catalyst carrier; put active component into deionized water prepared impregnating solution; Magnetic catalyst carrier parked in the above impregnated solution to response, static aging, drying, calcination and insulation, then get a magnetic solid base catalyst. The invention magnetic solid base catalyst production process is simple, low cost, used for the preparation of the bio-diesel in transesterification reaction, catalytic function is superior, separation and recovery is convenient after transesterification reaction.

The invention relates to a self-polishing antifouling paint and a preparation method thereof. Every 100 parts by mass of the antifouling paint is composed of 18-24 parts of solid-based resin, 50-55 parts of antifouling compound, 0.5-1.5 parts of graphene microchip, 3-6 parts of pigment and filler, 1-2 parts of dispersing agent, 1-2 parts of organobentonite and the balance of organic solvent. The resin is composed of a hydroxy acrylic resin, a zinc acrylate resin and rosin. The antifouling compound is composed of zinc pyrithione, 4,5-dichloro-2-n-octyl-4-isothiazolinyl-3-one, cuprous oxide and zinc oxide. The preparation method comprises the following steps: respectively preparing the graphene microchip-zinc oxide-hydroxy acrylic resin slurry and cuprous oxide-rosin-zinc acrylate slurry, and mixing to obtain the self-polishing antifouling paint. The obtained self-polishing antifouling paint product has the advantages of stable quality, long antifouling period, favorable polishing effect, high strength, cracking resistance and low VOC (volatile organic compound).

Processes for producing a low acid biomass-derived pyrolysis oil are provided that include pre-treating a biomass-derived pyrolysis oil to form a treated acid-containing biomass-derived pyrolysis oil. The processes also include esterifying the treated acid-containing biomass-derived pyrolysis oil in the presence of supercritical alcohol and a catalyst composition to form the low-acid biomass-derived pyrolysis oil, the catalyst composition comprising a material selected from the group consisting of an unsupported solid acid catalyst, an unsupported solid base catalyst, and a catalytic metal dispersed on a metal oxide support.

The invention relates to a solid base catalyst for synthesis of glycerol carbonate. The catalyst is composed of 0.66%-28.77% by mass of a base metal oxide and the balance Mg-Al hydrotalcite, with the base metal oxide loaded on the Mg-Al hydrotalcite. Specifically, in the Mg-Al hydrotalcite, Mg and Al are in a mole ratio of 1-5:1. The solid base catalyst provided in the invention has the advantages of good stability, no pollution, and high activity.

The invention relates to an acid-base two-step process system which comprises a preprocessing system and is used for preparing fatty acid methyl ester and glycerol from kitchen waste oil. The system comprises a kitchen waste oil preprocessing unit, an acid-base two-step esterlysis reaction unit, a glycerol separation and recovery unit, a rinsing and dehydrating unit and a decoloration filtering unit and the like. The processes are as follows: step I: after impurity removal, dehydration and deodorization are carried out on the kitchen waste oil, 40% concentrated sulfuric acid the weight of which is 1-5% of that of the waste oil is added, absolute methanol is added based on the alcohol-oil ratio of (6:1)-(9:1), heating is carried out until the temperature is 60-65 DEG C, the mixture is stirred for 1-3 hours at a revolving speed of 200-400r/min, and then rinsing separation and dehydration are carried out, thus obtaining the fatty acid methyl ester and crude glycerol; and step II: solid base catalyst the mass percent concentration of which is 0.5-5% is added in the rinsed fatty acid methyl ester mixture, absolute methanol is added based on the alcohol-oil ratio of (3:1)-(6:1), reaction is carried out for 1-3 hours at 20-50 DEG C, and then distillation is carried out under reduced pressure, thus obtaining the fatty acid methyl ester.

The invention relates to a hydrotalcite preparation method. Hydrotalcite is prepared in one step by adopting mechano-chemical process, the method includes uniformly mixing trivalent metal compound, divalent metal compound, solid base and carbonate, ball milling by a ball miller for 1-5 minutes, washing, and drying to obtain the required hydrotalcite. The invention has simple technological flow, less equipment investment, available main raw materials and low cost. The hydrotalcite obtained by the method has wide application for example, the hydrotalcite may be used as catalyst, catalyst precursor, ion exchanger or absorbent, medicine carrier, fire retardant and PVC heat stabilizer.

The present invention relates to a method for preparing a hydrophobic organic framework solid base catalyst. A functional monomer of 4-vinylpyridine or 1-vinylimidazole, a crosslinking agent monomer of divinylbenzene and an initiator of azodiisobutyronitrile are added into an organic solvent for a thermal polymerization reaction, and the hydrophobic organic framework solid base catalyst is obtained after evaporating and drying the solid at room temperature. In the thermal polymerization reaction, the ratio of the total amount of the functional monomer and the crosslinking agent monomer to the organic solvent is 0.67-2.0 (mL/mmol). The ratio of the functional monomer and the crosslinking agent monomer is 0.2-1.0 (mL/mL). The temperature of the solvent thermal polymerization reaction is 80-140 DEG C, and the reaction pressure is 0.5-5 MPa. The method provides the organic framework solid base catalyst which is swellable, large in specific surface area, large in pore volume, stable, and super-hydrophobic.

The solid alkali catalyst process of preparing biodiesel oil includes the following steps: mixing vegetable oil and methanol or ethanol in the molar ratio of 4-20 mechanically in a reactor; adding solid alkali catalyst in 0.5-5 wt% of the vegetable oil and cosolvent in 5-20 wt% of the vegetable oil; performing ester exchange reaction at 60-85 deg.c via stirring for 1-4 hr; suction filtering while the reacted product is hot to separate out solid alkali catalyst; distilling the liquid phase to recover methanol; separating the liquid phase in a separating funnel into crude biodiesel oil in the upper layer and glycerin in the lower layer; and decompression distilling the crude biodiesel oil to obtain purified biodiesel oil product. Thus prepared biodiesel oil has simple post-treatment, and needs no neutralization and washing.