32results about How to "Deactivation" patented technology

The invention provides a method for recovering gold, antimony and lead from floatation tailings, and belongs to the technical field of resource comprehensive utilization. The method comprises the steps of first removing slime in the floatation tailings through gravity separation, then grinding gravity concentrates and carrying out gold, antimony and lead bulk flotation, re-grinding the concentrates obtained through bulk floatation to suppress antimony and float gold and lead, carrying out gold and lead separating flotation on the obtained concentrates, carrying out activated antimony separation on the obtained floatation tailings, and finally obtaining gold concentrates, lead concentrates and antimony concentrates. According to the method, coarse particle minerals are enriched in advance through the open path flow of gravity concentration, a large amount of slime in the floatation tailings is got rid of, and the negative influence of the slime on the follow-up flotation is avoided; the full open path flow of bulk flotation is favorable for making coenobia to enter the concentrates, the recovery rate of gold, antimony and lead is greatly increased, and secondary slime formed by re-grinding is prevented from entering the concentrates. The method has important economic value and environment benefits to reuse of the floatation tailings.

The invention provides a flotation composite inhibitor for inhibiting pyrite under low alkalinity and a using method thereof. The flotation composite inhibitor comprises, by weight, 75-85% of CaO, 15-25% of NaClO and 2-5% of sodium humate. According to the flotation composite inhibitor for inhibiting the pyrite under low alkalinity and the using method thereof, the pyrite activated by Cu2+ is inhibited by the composite inhibitor under low alkalinity, and the recycling rate of concomitant gold minerals in ores is improved; in the process of separation of copper and sulphur, activation on the pyrite of the Cu2+ generated by secondary copper minerals containing in ores is obviously relieved, so that the copper and gold in ores can be effectively recycled; in the flotation technology of gold-copper ores, the recycling rate of concomitant gold can be increased by about 2.5%, and gold in copper concentrate is a valuable element; the higher gold grade is, the higher the valuation coefficient is; the higher copper grade is, the higher the sale price is; and the economic benefit of an industry is improved, and the effective use ratio of ore resources is improved.

The invention relates to a method for preparing liquid sodium silicate through copper and sulfide tailings. The liquid sodium silicate product is prepared with the step that the copper and sulfide tailings are graded through a whirlcone. Raw materials are wide in source, the technology is simple, energy consumption is low, practicability is high, the problem that the copper and sulfide tailings are large in emission load is relieved, waste is turned into valuable things, the purposes of reclamation and reduction of the tailings are achieved, and the method has good social benefits and economic benefits.

The invention relates to a mineral processing process for multi-metal sulfide minerals containing secondary copper, and belongs to the technical field of mineral processing. According to the method of the mineral processing process for multi-metal sulfide minerals containing the secondary copper, iron powder with the particle size of 1 mm to 150 mm is selected for preparing suspension liquid with the concentration of 1 percent to 10 percent; iron powder with the amount of 0.1 to 1 percent of the mass of solid ore in the ore pulp is added to a mill or an agitator tank, and subsequently conventional flotation method is carried out to obtain final concentrate products; the iron power added into the mill and ore particles form primary batteries, dissociative copper ions in the ore pulp are replaced, excitation of the dissociative copper ions on blende and pyrite is reduced, the floatability difference among the minerals is enlarged, the phenomenon that concentrate products containing one another is reduced, and therefore the index of mineral separation products is improved. The method has the advantages of being good in flotation index, saving chemical, and simplifying mineral processing flow.

The invention belongs to the field of tumor treatment and molecular immunology, and relates to an anti-VEGFA-anti-PD-1 bispecific antibody and an application thereof. Specifically, the anti-VEGFA-anti-PD-1 bispecific antibody comprises a PD-1-targeting first protein functional region and a VEGFA-targeting second protein functional region, according to an EU numbering system, a heavy chain constant region of immune globulin contained in the bispecific antibody mutates at two sites of 234 and 235, and after mutation, the affinity constant of the bispecific antibody is reduced compared to the affinity constant of Fc [gamma] RI, Fc [gamma] RIIa, Fc [gamma] RIIIa and / or C1q before mutation. The bispecific antibody disclosed by the invention can be specifically combined with VEGFA and PD-1, specifically relieve immunosuppression of VEGFA and PD-1 on an organism and inhibit angiogenesis caused by tumors at the same time, and has a good application prospect.

The invention discloses a Chinese medicinal composition for treating prostate gland diseases, wherein the constituents include epimedium 40-50g, morinda root 10-12g, wolfberry fruit 30-35g, broomrape 12-15g, curculigo rhizome 8-12g, yellow corktree bark 10-12g, doddor seed 12-15g, ginseng 8-10g, prepared rehmannia root 30-32g and bamboo leaf 50-55g.

The invention discloses a calcium carbonate inhibitor for fluorite ore flotation. The inhibitor is composed of the following raw materials in parts by weight: 40-50 parts of water glass, 15-25 parts of sulfuric acid, 8-15 parts of sodium hexametaphosphate, 8-15 parts of sodium sulfate and 5-10 parts of alums. The inhibitor disclosed by the invention has the advantages of small dosage, low cost, stable performance and wide application range, can effectively improve the floatation rate of fluorite ores, can effectively eliminate coagulated and activated fluorite ores by adding the water glass, the sulfuric acid, the sodium hexametaphosphate, the sodium sulfate and the alums, and can inhibit silicon dioxide and carbonate in the ores, so that the concentrate output grade and quality of the ores can be improved, and the CaF2 recovery rate is obviously improved.

The invention discloses a planting method capable of improving rice quality. The planting method includes the steps of seed soaking seedling raising and transplanting, and fertilization, water drainage, irrigation, prevention and control of plant diseases and pests and the like of an active tillering stage, a tillering last stage, a booting stage, a pustulation stage and other rice growth stages. Ecological organic fertilizer and biological reen manure serve as base fertilizer, plant probiotics and a water and fertilizer integration form are scientifically utilized, less fertilization and frequent fertilization are kept, and enough organic matter, soft acid bacteria and overall nutrient elements are provided for soil and plants continuously in order to improve the stress resistance and disease resistance of the plants and guarantee healthy growth of crops. A good use effect is achieved on the aspects of soil improvement, land fertilization and combination of land use and land maintenance. The plant diseases and pests of rice planted through the method are obviously reduced, the yield is obviously increased, and the quality is obviously improved.

The invention relates to a beneficiation process for polymetallic sulfide ores containing secondary copper, belonging to the technical field of mineral processing. The method of the present invention is as follows: take iron powder with a particle size of 10-150 μm and prepare a 1%-10% suspension; add iron powder to the mill or stirring tank according to 0.1%-1% of the ore solid mass in the pulp Suspension, followed by the conventional flotation method to obtain the final concentrate product; the iron powder added to the mill and the mineral particles form a primary battery, so that the free copper ions in the slurry are replaced, reducing the impact of free copper ions on sphalerite The activation of pyrite and pyrite makes the difference in buoyancy between minerals larger, and the intercontainment phenomenon of concentrate products is small, thereby improving the index of mineral processing products. The method of the invention has the advantages of good flotation index, saving chemicals, simplifying the ore dressing process and the like.

The invention discloses a low-alkali separation method for high-sulfur copper-zinc ore. The low-alkali separation method comprises the following steps: grinding of raw ore; copper roughing, wherein dry calcium oxide powder, a zinc inhibitor, namely solid sodium pyrosulfite powder and an efficient copper collecting agent are added in the process of copper roughing, and rough copper concentrate andcopper roughing tailings are obtained; multi-stage copper scavenging, wherein the dry calcium oxide powder, the zinc inhibitor solid sodium metabisulfite powder and the efficient copper collecting agent are added in each stage of scavenging operation; regrinding of the rough copper concentrate; and copper concentration, wherein the reground rough copper concentrate is subjected to multi-section concentration operation, and the dry calcium oxide powder and the zinc inhibitor solid sodium metabisulfite powder are added in each section of concentration operation. The method can overcome the defects of existing high-alkali copper-zinc separation processes for the high-sulfur copper-zinc ore and solve the problem of low recovery rate of associated noble metals.

This invention relates to a hydroprocessing process for the improvement of catalyst life. Such inventive process is carried out with intermittent or discontinuous addition of a co-feed stream when hydroprocessing petroleum based feedstock or an oxygen containing feedstock. More specifically, it has been found that intermittent or discontinuous addition of the co-feed stream such as carbon monoxide, carbon dioxide, or their precursors to the hydrogen stream can reduce the long term deactivation, extend the life and increase run length of a cobalt / molybdenum hydrotreating catalyst.

The invention discloses a method for eliminating copper ions in secondary copper sulphide multi-metal ore pulp solutions and belongs to the technical field of mineral processing. The method is characterized in that the beneficiation process of the method sequentially comprises the steps that raw ore is ground till monomer separation is conducted, and the ground raw ore is fed into a stirring groove; copper powder is added into the stirring groove, added with hydrochloric acid, heated and stirred; and pulp conditioning and dosing are conducted, common floatation is carried out, and concentrate products are obtained. According to the method for eliminating the copper ions in the secondary copper sulphide multi-metal ore pulp solutions, the hydrochloric acid and the copper powder react with Cu2+; a coordination compound [CuCl2]-, capable of stably staying in a water solution, of Cu(I) can be generated; and the Cu2+ is removed before floatation operation is conducted, sphalerites, pyrites, magnetic pyrites and other sulfide minerals are prevented from being activated through the ion Cu2+, and good beneficiation indexes can be acquired through the common floatation process. The method for eliminating the copper ions in the secondary copper sulphide multi-metal ore pulp solutions has the advantages of being good in beneficiation index, capable of saving medicaments and the like.

The invention discloses a method for machining pyrrhotite containing nickel ore. The method comprises the steps that (1) the pyrrhotite containing nickel ore is subjected to smashing treatment so thatsmashed ore can be obtained; (2) the smashed ore is subjected to wet grinding treatment through a ball grinder so that ore pulp can be obtained, wherein a lining plate and balls of the ball grinder are all made of stainless steel; and (3) the ore pulp, sodium n-butylxanthate and methyl isobutyl carbinol are mixed and stirred and then subjected to floatation treatment so that nickel concentrate and pyrrhotite can be obtained separately. According to the method, no inhibitor needs to be added, the environment-friendly effect is achieved, moreover, the cost is low, operation is convenient, the grade and the recovery rate of the nickel concentrate are remarkably improved, and remarkable economical benefits are achieved.

The invention discloses a medicine composition for therapy of allergic rhinitis, which includes Helikaurolide A and homoharringtonine as active components, wherein the Helikaurolide A and the homoharringtonine have excellent effects on therapy of the allergic rhinitis.

The invention relates to a method for preparing liquid sodium silicate through copper and sulfide tailings. The liquid sodium silicate product is prepared with the step that the copper and sulfide tailings are graded through a whirlcone. Raw materials are wide in source, the technology is simple, energy consumption is low, practicability is high, the problem that the copper and sulfide tailings are large in emission load is relieved, waste is turned into valuable things, the purposes of reclamation and reduction of the tailings are achieved, and the method has good social benefits and economic benefits.

The invention discloses a method for eliminating copper ions in secondary copper sulphide multi-metal ore pulp solutions and belongs to the technical field of mineral processing. The method is characterized in that the beneficiation process of the method sequentially comprises the steps that raw ore is ground till monomer separation is conducted, and the ground raw ore is fed into a stirring groove; copper powder is added into the stirring groove, added with hydrochloric acid, heated and stirred; and pulp conditioning and dosing are conducted, common floatation is carried out, and concentrate products are obtained. According to the method for eliminating the copper ions in the secondary copper sulphide multi-metal ore pulp solutions, the hydrochloric acid and the copper powder react with Cu2+; a coordination compound [CuCl2]-, capable of stably staying in a water solution, of Cu(I) can be generated; and the Cu2+ is removed before floatation operation is conducted, sphalerites, pyrites, magnetic pyrites and other sulfide minerals are prevented from being activated through the ion Cu2+, and good beneficiation indexes can be acquired through the common floatation process. The method for eliminating the copper ions in the secondary copper sulphide multi-metal ore pulp solutions has the advantages of being good in beneficiation index, capable of saving medicaments and the like.

The invention discloses a combined inhibitor for separating kaolin-containing copper sulphide ore and a separation method. The combined inhibitor is prepared from sodium percarbonate and lignin xanthate according to the mass ratio of (70.0 to 95.0) to (5.0 to 30.0). According to the separation method, for the kaolin-containing copper sulfide ore, kaolin is inhibited in two stages by adding polyacrylate, and copper-sulfur bulk concentrate is obtained through copper-sulfur bulk flotation; and the combined inhibitor and lime are combined for copper-sulfur bulk concentrate to inhibit pyrite flotation copper minerals, copper-sulfur separation under low alkalinity is achieved, and good technical indexes are obtained.

Process for the production of a synthesis gas, in which a gas mixture comprising carbon dioxide and hydrogen is brought into contact with a catalyst in order to produce carbon monoxide, the process being characterized in that the catalyst comprises iron and silver in a weight of silver / weight of iron ratio which is from 0.05 to 0.95.Catalytic reactor intended for the implementation of the process for the production of a synthesis gas.

The invention is designed according to the structural theory of a human body, the pharmacology and the occurrence mechanism of cervical spondylosis. The neck bolster performs a function of supporting the neck and can enable the head to naturally tip back slightly, and the gravity of the head is backward and downward; especially, in a sleeping state, the muscle groups of the neck are slack to form a certain traction force and can widen the clearances of cervical vertebrae, and the matched medicines act on an organism by skin infiltration and the suction of the respiratory tract according to the monarch, the minister and the assistance to generate an effect, stimulate the skin receptors, the blood vessels and the nerves of the head and the neck, and regulate the excitement and the balance of the head and the neck, thereby achieving the aim of treating the superficiality and the origin. The neck bolster has wide application range and suitable crowd, is suitable for all the people, does not have any side effect, does not take time on treatment, is economical and practical and has high effective rate.

The invention discloses a power grid information processing device based on 5G communication, relates to the technical field of power grid information processing, and solves the problem that a fixed structure between a communication display machine and a connection type movable mechanism enables the whole communication display machine to be overhauled very complicatedly and is not beneficial to rapid operation of maintenance personnel. A power grid information processing device based on 5G communication comprises a rotating door, side end plates are arranged on the two sides of the rear end of the rotating door, fixed end plates are fixedly arranged at the upper ends and the lower ends of the two side end plates, and a containing cavity is fixedly formed in the interior between the side end plates and the fixed end plates; three connecting type movable mechanisms are vertically and evenly arranged in the containing cavity, and supporting columns are fixedly welded to the two sides of the front portion of the upper end face of each connecting type movable mechanism. The T-shaped slots are formed in the two sides of the upper end of the connection type movable mechanism in a front-back penetrating mode, so that the T-shaped long plates can be transversely and movably arranged in the T-shaped slots.

The invention provides a fertilizing method which can improve the manurial effect of a trace element, in particular relates to furrowing (or holing) fertilization, comprising the following steps: half of acid medium is put in every dressing furrow (or hole), trace element fertilizer is put inside, and then the other half of acid medium is put inside. The acid medium is red loam, or peat bog or fertilizer, such as decomposed pig manure, chicken manure, etc. The application ratio of the trace element fertilizer and the acid medium is determined by climate, soil and plant. By adopting the method, root field soil pH can be decreased to lead the trace element fertilizer to be effective steadily for a long time, and over-high local concentration of the trace element can be effectively avoided; microbial activity of the soil is improved, which is favourable for the absorption of micro-nutrient by a root system and transportation in a tree, the physiological passivation of the trace element is eliminated, and the activity thereof is improved; growing conditions of the tree is improved, nutritive equilibrium is promoted, and tree vigor is strengthened; and trace element nutrient deficiencysymptom of the tree can be controlled, and quality fruit with relatively high content of the trace element can be produced. The method can be applied to the control of calcareous soil woody plants which lack the trace element.

The invention provides a method for comprehensively recovering gold, antimony and lead from flotation tailings, belonging to the technical field of resource comprehensive utilization. The method first removes the slime in the flotation tailings by gravity, then grinds the gravity concentrate and carries out mixed flotation of gold, antimony and lead, and then grinds the concentrate of mixed flotation to suppress antimony and float gold and lead The obtained concentrate is subjected to gold-lead separation flotation, and the obtained tailings are subjected to activated antimony separation to finally obtain gold concentrate, lead concentrate and antimony concentrate. This method pre-enriches coarse-grained minerals through the gravity-selection open-circuit process, throws away a large amount of slime in the flotation tailings, and avoids the adverse effect of the sludge on the subsequent flotation; the mixed flotation full-open-circuit process is beneficial to The continuous body enters the concentrate, which greatly improves the recovery rate of gold, antimony and lead, and at the same time prevents the secondary slime formed by grinding from entering the concentrate. This method has important economic value and environmental protection for the reuse of flotation tailings. benefit.

The present invention relates to compositions of low-activation concretes and use thereof. Specifically, the invention relates to a low-activation concrete comprising high-purity limestone aggregate and white cement, or high-purity limestone aggregate and aluminous cement. The low-activation concrete reduces the content of Europium, Cobalt and Cesium, as well as the content of elements such as Aluminium, Sodium, and Magnesium, when compared to standard concrete compositions and compositions for low-activation concrete already known in the art. The use of the low-activation concrete for formingan interior wall of a particle accelerator vault is provided as well.

The invention relates to a compound solid propellant with a low burning rate, high energy and high mechanical property. The compound solid propellant is prepared from components in parts by weight asfollows: 6-7 parts of an adhesive, 17-19 parts of a plasticizer, 10-15 parts of an oxidizing agent, 42-47 parts of energy-containing explosive, 15-18 parts of metal fuel, 0.15-0.25 parts of a curing agent, 0.05 parts of a curing catalyst, 0.3 parts of a stabilizing agent and 0.2 parts of a bonding agent. The minimum burning rate under the pressure of 6.686 MPa can reach 7 mm / s, the standard specific impulse is stably larger than 255 s according to actual testing, the technical problems that the burning rate of a high-energy propellant is further reduced and the energy of the propellant is substantially reduced are solved, and the technical requirements of existing propellants for weapon models for high energy, lower burning rate and high mechanical property are met.

The invention discloses a medicine composition for preventing and treating presbycusis. The effective components comprise Trefolane A and antide acetate. By weight, the ratio of the Trefolane A to the antide acetate is 1:1-20:1. The medicine composition for preventing and treating the presbycusis has a good effect on prevention and treatment of the presbycusis.

One for SO removal at higher temperature 2 The preparation method of the catalyst is to formulate metal salts into a 1-20wt% aqueous solution, mix 1g of activated carbon fiber with 2ml of the aforementioned aqueous solution, leave it at room temperature for 12 hours, and take out the activated carbon fiber loaded with salts. After drying at room temperature, dry overnight at 120°C. Put 0.1g-2g of activated carbon fibers loaded with metal salts in the reaction furnace, and then raise the temperature of the furnace to 50-80°C, the SO 2 , O 2 and water vapor N 2 into the reaction furnace for SO 2 removal. The invention is simple to prepare and easy to operate, and the loaded metal salts can remove SO in the flue gas with high activity at a relatively high temperature such as 50-80°C without any treatment 2 , which has the advantage of low preparation cost.