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 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 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 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.

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 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.