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42 results about "Sodium thioglycollate" patented technology
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Process for the separation of molybdenum-bismuth mineral
The invention discloses a separation method of koechlinite mineral, which adopts BK510 reagent as inhibitor; wherein, the BK510 reagent comprises a component of sodium thioglycolate; BK510 reagent, econolite and coal oil are added to the koechlinite bulk concentrate and stirred; roughing of one time, choiceness of three times and scavenging of two times are processed and the molybdenum concentrate with molybdenum above 45% and bismuth below 0.70% is acquired; the BK510 reagent has the advantages of resolving the problems of large amount of sodium sulfide, abominable operating environment and serious pollution, convenient addition and safe use. The separation method of koechlinite mineral has the advantages of low amount of inhibitor, reducing pollution, and improving the production condition.
Owner:BEIJING GENERAL RES INST OF MINING & METALLURGY
Efficient inhibitor composition for copper-sulfur separation and copper-sulfur separation flotation method by applying same
The invention discloses an efficient inhibitor composition for copper-sulfur separation and a copper-sulfur separation flotation method by applying the same. The inhibitor composition (XKY-03) comprises, by mass percentage, 55-70% of sodium humate, 20-35% of potassium permanganate and 5-10% of sodium thioglycollate; and a preparation method of the inhibitor composition (XKY-03) comprises the stepsof taking a beaker as a container at normal temperature and normal pressure, and stirring for 40-50 minutes by a magnetic stirrer. According to the inhibitor composition (XKY-03) prepared by the preparation method, the copper-sulfur separation can be effectively realized, the sulfur-iron ore which is activated by Cu2+ can be inhibited, the grade and the recovery rate of copper in the copper concentrate can be improved, meanwhile, the complexation reaction can occur between the inhibitor composition (XKY-03) and unavoidable ions in the ore pulp such as Cu2+, Pb3+, Fe3+ and the like, so that the concentration of the unavoidable ions in the ore pulp is reduced, and the activation effect of the unavoidable ions on the pyrite ore is reduced; and additionally, the inhibitor composition (XKY-03)further has the characteristics of less use amount, low toxicity and the like, and is suitable for popularization and application.
Owner:WESTERN MINING CO LTD +3
Method for reverse flotation of enriched zinc silicate mineral in acidic condition
A method for reverse floatation of an enriched zinc silicate mineral in an acidic condition comprises the following steps: using sulfuric acid as a pH value regulator, using acidified sodium silicate and sodium thioglycollate as an inhibitor for the zinc silicate mineral, and using oxidized paraffin soap and sodium dodecyl sulfate as a collector for the zinc silicate mineral. By the adoption of the method, the zinc silicate mineral can be effectively recycled, and under the condition that the feeding zinc grade is 11.27-17.80%, the zinc silicate concentrate with the grade being 39.24-44.90% and the recycling rate being 82.55-88.20% can be obtained after three-time reverse floatation.
Owner:GUANGXI UNIV
Anaerobic enrichment medium and preparation method thereof
ActiveCN104419744APromote growthPromote reproductionMicrobiological testing/measurementBiotechnologyAnaerobic bacteria
The invention belongs to the technical field of microbial culture, and concretely relates to an anaerobic enrichment medium and a preparation method thereof. The medium includes peptone, yeast extract powder, a brain and heart infusion broth, glucose, sodium thioglycolate, hemin, vitamin K1, an anticoagulant, an anaerobic indicator and distilled water; and the medium for promoting mass propagation of anaerobic bacteria can be prepared through a special ratio of the above components. The medium is used to clinically culture anaerobic pathogens in order to improve the positive detection rate of the anaerobic pathogens.
Owner:SHANDONG XINKE BIOLOGICAL TECH
Culture medium of anaerobic toxin production in use for producing vaccine of treating disease of sheep clostridium
InactiveCN1696282ALow costQuality improvementBacteriaBacteria material medical ingredientsVaccine ProductionSulfite salt
Owner:新疆维吾尔自治区畜牧科学院兽医研究所
Culture medium for culturing Chlamydomonas reinhardtii by urea plant wastewater and culture method of Chlamydomonas reinhardtii
ActiveCN103966102AReduce outputIncrease productionUnicellular algaeMicroorganism based processesChlamydomonas reinhardtiiArginine
The invention discloses a method for culturing Chlamydomonas reinhardtii by urea plant wastewater. According to the method, urea plant wastewater can be treated in low cost, Chlamydomonas reinhardtii with important economic value can also be obtained, the waste is changed into treasures, harm is turned into a good and many things are achieved at one stroke. A traditional method for culturing Chlamydomonas reinhardtii comprises the step of culturing Chlamydomonas reinhardtii in an open concrete runway pool by virtue of a TAP culture medium, and has the disadvantages of low growth speed, low output, great investment, easy pollution and low efficiency. According to the invention, Chlamydomonas reinhardtii is cultured in a household mineral water bucket to achieve the advantages of low cost, small possibility of pollution, convenience in cleaning, reutilization and convenience in operation; since nutritional ingredients, such as urea plant wastewater, yeast extract powder, sodium deoxycholate, sorbitol, mannitol, sodium thioglycolate, soil extract liquid, sheep manure leachate, chicken manure leachate, L-arginine, potassium dihydrogen phosphate, yeast extract, and diatomite powder are added into the culture medium, and an organic fertilizer is used in combination with an inorganic fertilizer, nutrition is more comprehensive and balanced, the growth rate and yield of Chlamydomonas reinhardtii are substantially increased and the yield is increased by 280%.
Owner:江西赣兴气体有限公司
Culture medium and culture method for culturing amphora ovalis by using wastewater in canning plant
InactiveCN104017730ALow costReduce outputUnicellular algaeMicroorganism based processesPhosphateArginine
The invention discloses a culture medium and a culture method for culturing amphora ovalis by using wastewater in a canning plant, and the culture medium and the culture method can be used for treating the wastewater in the canning plant with low cost, utilizing wastes and obtaining microalgae with important bait value. The amphora ovalis traditionally cultured by adopting a Liao's improved culture solution and an open runway pool is slow in growth, low in yield, easy to contaminate and low in benefit, whereas aerated culture with transparent 1.5cm<3> cylindrical food-grade plastic drums is capable of realizing low cost and quick growth, avoiding pollution contamination and is easy to operate; the wastewater in the canning plant, sodium silicate, ammonium ferric citrate, ammonium molybdate, potassium chromate, fish meal, sodium carboxymethyl cellulose, L-arginine, potassium dihydrogen phosphate, medical stone meal, 920-type plant growth substance, vitamin S-3 solution, M-F trace element solution, sodium thioglycollate and the like are added in the culture medium, namely organic fertilizers and inorganic fertilizers are used together, so that the nutrition is more comprehensive and balanced, the growth rate of the amphora ovalis is greatly improved, and the yield is improved by 420%.
Owner:LINYI UNIVERSITY
High-ductility modified hard asphalt and preparation method thereof
InactiveCN106977965AImprove ductilityImprove high temperature stabilityBuilding insulationsPolymer scienceAlkylphenol
The invention discloses high-ductility modified hard asphalt, which is prepared from the following raw materials in parts by weight: 130 to 140 parts of petroleum asphalt, 10 to 14 parts of methyl silicone rubber powder, 18 to 22 parts of methyl vinyl silicone rubber powder, 11 to 15 parts of modified kaolin, 5 to 9 parts of barium metaborate, 12 to 15 parts of sulfated castor oil, 5 to 8 parts of trimellitic anhydride, 2 to 5 parts of alkylphenol ethoxylate, 3 to 6 parts of allyl methacrylate and 4 to 8 parts of sodium thioglycollate. The invention also discloses a preparation method of the high-ductility modified hard asphalt. The prepared modified hard asphalt has high ductility, and has good high-temperature stability and low-temperature anti-cracking performance; important market values and social values are realized.
Owner:詹澍
Preparation method of sub-micron cellulose
InactiveCN106046179AAvoid lossSimple processPharmaceutical non-active ingredientsSodium acetateFiber
The invention discloses a preparation method of sub-micron cellulose. The method comprises the steps: adding common plant fiber dissolving pulp into a mixed solution composed of two solvents of methanol, glycerol, dimethyl sulfoxide, ethanol, N-N dimethyl acetamide and water, continually stirring the mixed solution, then adding NaOH or KOH for reacting for 10-100min, then adding one or two of sodium acetate, sodium monochloroacetate, sodium valproate and sodium thioglycolate for reacting for 1-10h, then carrying out washing with water, and carrying out filtering to obtain a sub-micron cellulose solution. The technology has no need of mechanical treatment and avoids massive energy loss. The preparation method of sub-micron cellulose adopts a fully chemical means for treatment and has the characteristics of simple process, low energy consumption, environment friendliness, low cost and the like, and simultaneously, the reaction solution can be reused through recovery equipment.
Owner:SOUTH CHINA UNIV OF TECH
Energy storage lead-acid battery life-extension liquid and preparation method thereof
ActiveCN108923078AImprove cycle lifeReduce the speed of capacity decayLead-acid accumulatorsAcid electrolytesSebacic acidClelands Reagent
The invention discloses an energy storage lead-acid battery life-extension liquid and a preparation method thereof. The energy storage lead-acid battery life-extension liquid comprises the following parts of raw materials by weight: 10-16 parts of fosetyl-aluminum, 16-27 parts of dithiothreitol, 6-14 parts of diallyl dimethyl ammonium chloride, 11-15 parts of sodium thioglycolate, 6-12 parts of chromium chloride, 5-10 parts of azelaic acid, and 45-60 parts of water. The energy storage lead-acid battery life-extension liquid of the present invention is compounded by fosetyl-aluminum, dithiothreitol, diallyl dimethyl ammonium chloride, sodium thioglycolate, chromium chloride, sebacic acid and water. The battery prepared by using the energy storage lead-acid battery life-extension liquid hasthe advantages of high cycle life, low capacity decay speed, strong charging acceptance, and the like, and has good social value and economic value; and the preparation method is simple and beneficialto realize industrial production.
Owner:GUANGDONG YINGYEDA ELECTRONICS CO LTD
Method for preparing methyl mercury removal agent
ActiveCN110152615AFully adsorbedImprove adsorption capacityOther chemical processesWater contaminantsIminodiacetic acidSodium thioglycollate
The invention discloses a method for preparing a methyl mercury removal agent. The method comprises the following steps: (1) respectively weighing tuff powder, aluminum powder, sodium hydroxide and sodium dodecyl sulfate, uniformly mixing to obtain inorganic carrier mixed powder, adding the inorganic carrier mixed powder into water, uniformly stirring, putting in a mold, curing and demolding to obtain an inorganic carrier test block, and crushing, grinding and screening the inorganic carrier test block to obtain inorganic carrier powder; (2) weighing iminodiacetic acid and sodium thioglycollate to be dissolved into water so as to obtain enhanced modification liquid; and (3) adding the inorganic carrier powder into the enhanced modification liquid, uniformly stirring, standing, air-drying and grinding, thereby obtaining the methyl mercury removal agent. According to the method disclosed by the invention, the preparation process is simple, the preparation cost is low, methyl mercury canbe fully adsorbed by the removal agent, and the problem in the prior art that the methyl mercury dissociates from the surface of the removal agent is solved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY
Culture medium and culture method for cultivating Botry coccus braunii by utilizing monosodium glutamate plant wastewater
ActiveCN103981098ALow costReduce outputUnicellular algaeMicroorganism based processesMonosodium glutamateArginine
The invention discloses a culture medium and culture method for cultivating Botry coccus braunii by utilizing monosodium glutamate plant wastewater. The technique can treat monosodium glutamate plant wastewater at low cost, utilize waste, change wastes into valuable substances and obtain the Botry coccus braunii with important economic value, thereby implementing multiple purposes. The traditional culture medium for Botry coccus braunii is the Zhu's No.13 culture solution which has the defects of low growth speed, low yield, high investment, high tendency to pollution and low benefits. In the invention, a closed circular cement track tank, which has the advantages of low cost and low tendency to pollution and is easy to operate, is utilized for culture; the monosodium glutamate plant wastewater, sodium fluoride, soil extract, sea mud extract, cattle manure extract, chicken manure extract, L-arginine, potassium dihydrogen phosphate, sorbitol, mannitol, sodium thioglycolate and the like are added to the culture medium, and the organic fertilizers and inorganic fertilizers are mixed; and thus, the nutrients are more comprehensive and balanced, the growth speed of the Botry coccus braunii is greatly enhanced, and the yield is enhanced by 320%.
Owner:江西赣兴气体有限公司
LED ceramic base cleaning agent
InactiveCN104560423AAvoid cleaningEasy to useInorganic/elemental detergent compounding agentsCationic surface-active compoundsPhosphoric acidAlkylphenol
The invention discloses an LED ceramic base cleaning agent which is prepared by mixing the following components: 60-80 parts of phosphoric acid, 15-20 parts of glycolic acid, 12-15 parts of alkylphenol ethyoxyl ammonium salt, 8-10 parts of ethylene tetraacetic acid tetrasodium, 5-8 parts of iso-propyl xanthogen disulfide, 3-5 parts of sodium thioglycollate, 5-8 parts of dipropylene glycol methyl ether and 100-120 parts of deionized water. The LED ceramic base cleaning agent can effectively achieve a cleaning effect which cannot be achieved by a general cleaning agent, can completely clean the base, has the characteristics of convenience in use, safety, reliability and obvious effect and is particularly used for cleaning the ceramic base used for LED.
Owner:GUANGDONG HHH OPTOELECTRONICS TECH CO LTD
A kind of copper-sulfur separation flotation method
The invention discloses an efficient inhibitor composition for copper-sulfur separation and a copper-sulfur separation flotation method by applying the same. The inhibitor composition (XKY-03) comprises, by mass percentage, 55-70% of sodium humate, 20-35% of potassium permanganate and 5-10% of sodium thioglycollate; and a preparation method of the inhibitor composition (XKY-03) comprises the stepsof taking a beaker as a container at normal temperature and normal pressure, and stirring for 40-50 minutes by a magnetic stirrer. According to the inhibitor composition (XKY-03) prepared by the preparation method, the copper-sulfur separation can be effectively realized, the sulfur-iron ore which is activated by Cu2+ can be inhibited, the grade and the recovery rate of copper in the copper concentrate can be improved, meanwhile, the complexation reaction can occur between the inhibitor composition (XKY-03) and unavoidable ions in the ore pulp such as Cu2+, Pb3+, Fe3+ and the like, so that the concentration of the unavoidable ions in the ore pulp is reduced, and the activation effect of the unavoidable ions on the pyrite ore is reduced; and additionally, the inhibitor composition (XKY-03)further has the characteristics of less use amount, low toxicity and the like, and is suitable for popularization and application.
Owner:WESTERN MINING CO LTD +3
Combination medicine capable of treating pneumonia and upper respiratory tract infection and preparation method thereof
InactiveCN101507723AImprove stabilitySimple processOrganic active ingredientsInorganic non-active ingredientsSurvivabilityFreeze-drying
The invention relates to a composite drug for treating pneumonia and upper respiratory tract infection and a method for preparing the same. According to certain blending ratio, potassium dehydroandrographolide succinate, hydrochloric acid lincomycin, disodium hydrogen phosphate, sodium thioglycollate, EDTA-Ca and water for injection are processed to prepare the composition. The preparation method comprises that: the EDTA-Ca is dissolved in the water for injection and added with the sodium thioglycollate, the pH value is measured and adjusted, and a solution for standby is obtained; the disodium hydrogen phosphate is dissolved in the water for injection, the pH value is measured, and the mixed solution is added with potassium dehydroandrographolide succinate for dissolution until the mixed solution is clarified, the pH value is measured, and a solution for standby is obtained; the hydrochloric acid lincomycin is dissolved in the water for injection, the pH value is measured, and a solution for standby is obtained; the solutions for standby are mixed to prepare a mixed material solution and filled with nitrogen gas, the pH value is measured, the mixed solution is added with the water for injection to prepare a new solution for standby, and the new solution for standby is filtered, filled with nitrogen gas and sterilized to prepare a liquid injection preparation; and the new solution for standby is sterilized and filtered to prepare a freeze-drying powder and injection preparation. The composite drug prepared by the method has the advantages of good stability, simple and convenient process, low cost, good economical efficiency, good effect of drug combination, good survivability and huge economic and social benefits.
Owner:南阳普康药业有限公司 +1
Copper-molybdenum separation method for low-grade copper-molybdenum ore with consideration of backwater utilization
The invention provides a low-grade copper-molybdenum ore copper-molybdenum separation method giving consideration to backwater utilization, which comprises the following steps: carrying out copper-molybdenum bulk flotation on copper-molybdenum ore to obtain copper-molybdenum bulk concentrate and tailings; the tailings are subjected to concentration and filter pressing, and low-water-content tailings are obtained; and the copper-molybdenum bulk concentrate is concentrated, pulp mixing is conducted, then copper-molybdenum separation operation is conducted, and molybdenum concentrate and copper concentrate are obtained. According to the invention, sodium hydrosulfide and sodium thioglycollate are combined for use, so that the use amount of sodium hydrosulfide is greatly reduced; a pulp mixing and stirring barrel is arranged before the copper-molybdenum separation operation, the concentration of floating pulp is stabilized, meanwhile, sodium hydrosulfide is adopted for adjusting the potential of the pulp, and through the modes of sodium hydrosulfide reagent removal, high-concentration concentration reagent removal, aeration reagent removal, stirring friction washing and the like, residual reagents in the copper-molybdenum mixing operation in the pulp are reduced. According to the method provided by the invention, copper and molybdenum can be well separated.
Owner:TIBET HUATAILONG MINING DEV
Method for preparing uranium ion trapping agent
ActiveCN110152616AQuick removalLarge adsorption capacityOther chemical processesRadioactive decontaminationLow temperature plasmaIron(III) sulfate
The invention discloses a method for preparing a uranium ion trapping agent. The method comprises the following steps: (1) dissolving ferric sulfate and ferrous sulfate into water, sealing and stirring to obtain an iron-based solution; dissolving sodium hydroxide and sodium thioglycolate into water, sealing and stirring to obtain a basic thiol solution; mixing the iron-based solution and the basicthiol solution, sealing and stirring, separating, filtering, drying and grinding to obtain thiol green-rust doped powder; (2) adding the thiol green-rust doped powder into a low temperature plasma apparatus to perform glow discharge treatment so as to obtain thiol green-rust doped powder subjected to plasma treatment; and (3) adding the thiol green-rust doped powder subjected to plasma treatmentinto a test tube filled with a chelating agent solution, sealing and carrying out a grafting reaction to obtain a chelating agent enhanced thiol green-rust doped mixture, separating, filtering, dryingand grinding, thereby obtaining the uranium ion trapping agent. According to the method disclosed by the invention, uranium ions in uranium-containing waste liquor can be rapidly removed, and the adsorbed uranium ions can be stabilized inside particles.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY
Copper molybdenum separation flotation agent and copper molybdenum separation method
The invention provides a copper molybdenum separation flotation agent and a copper molybdenum separation method, and relates to the technical field of beneficiation. The copper molybdenum separation flotation agent comprises the following components in parts by weight: 10-15 parts of sodium sulfide, 1-1.5 parts of sodium thioglycollate, 0.1-0.15 part of kerosene, and 1.5-2.5 parts of water glass. The copper molybdenum separation flotation agent prepared through reasonable components and ratios thereof can exert the best separation effect to improve the problems of weak copper molybdenum separation effect and low molybdenum recovery rate. The copper molybdenum separation flotation agent realizes the copper molybdenum separation through flotation to reduce the energy consumption, and facilitates the copper molybdenum separation operation in energy shortage regions.
Owner:TIBET HUATAILONG MINING DEV
Bacteria culture medium, culture method and application of both
InactiveCN107858320AHigh activityGrowth inhibitionBacteriaChemical cell growth stimulationBacteroidesDissolution
The invention relates to the technical field of bacterial strain culture and specifically provides a bacteria culture medium, a culture method and application of both. The bacteria culture medium disclosed by the invention is prepared from a basal culture medium and an additive, wherein the additive is prepared from L-cysteine and sodium thioglycolate. The culture medium can provide a nitrogen source, vitamins, growth factors, fermentable saccharides and the like required by lactic acid bacteria growth and meanwhile can inhibit growth of other infectious microbes; addition of the L-cysteine and sodium thioglycolate additive can slow down dissolution of cell walls of the lactic acid bacteria, so that the amount of dead bacteria in a later fermentation period is reduced, the lactic acid bacteria can keep high-density growth and high activity at the same time, and quick growth and massive proliferation of the lactic acid bacteria are promoted. The lactic acid bacteria culture method disclosed by the invention has the advantages of simpleness, high efficiency, low cost, ability in massively proliferating high-activity and high-density lactic acid bacteria in a short period and significance in industrial culture of the lactic acid bacteria.
Owner:浙江同创越诚健康科技有限公司
Production method of high-grade sodium thioglycollate powder
ActiveCN105218417AAirtight packagingNot easily oxidizedThiol preparationSodium chloroacetateChloroacetic acids
The invention provides a production method of high-grade sodium thioglycollate powder. The production method comprises the following steps of firstly, uniformly mixing chloroacetic acid and deionized water according to the mass ratio to obtain a chloroacetic acid solution, then adding sodium carbonate into the chloroacetic acid solution, and uniformly mixing to obtain a sodium chloroacetate solution; secondly, adding sodium thiosulfate into the sodium chloroacetate solution, uniformly mixing and then carrying out temperature-rise condensation to obtain a condensation compound; thirdly, adding sodium hydroxide into the condensation compound, uniformly mixing and then carrying out temperature-reduced mercaptoethylation to obtain a mercaptoethylation product; fourthly, carrying out vacuum drying treatment on the mercaptoethylation product to obtain the high-grade sodium thioglycollate powder. According to the production method provided by the invention, the problems about low grade of products, high transportation expenses, high packing expenses, easiness in oxidation and the like existing the prior art are solved; sodium thioglycollate produced by the production method provided by the invention is in a powder shape and does not generate three wastes; the grade of the product is over 35 percent; the high-grade sodium thioglycollate powder belongs to a green environment-friendly product.
Owner:SHAANXI HUAGUANG IND
Medium for the isolation and enumeration of Clostridium butyricum
ActiveCN111763652BAchieve separationGrowth inhibitionBacteriaMicrobiological testing/measurementBacteroidesBromothymol blue
The invention relates to a culture medium for isolating and counting Clostridium butyricum, belonging to the field of microorganism separation and counting. Including tryptone 15.0g, beef extract powder 3.0g, yeast extract powder 1.0g, sodium chloride 5.0g, L-cysteine hydrochloride 0.5g, sodium thioglycolate 0.5g, xylose 10.0g, Bromothymol blue 0.04g, agar powder 15.0g, purified water 900ml, D-cycloserine 0.25g, kanamycin sulfate 0.012g, egg yolk 25ml. Compared with the prior art, the beneficial effects of the present invention are: first, the culture medium of the present invention can make Clostridium butyricum It can be clearly distinguished from other bacteria by visual observation, thereby achieving the purpose of isolating and counting Clostridium butyricum. Second, the effect is remarkable, direct and effective, and low in cost.
Owner:山东拓普生物工程有限公司
Anaerobic indicator
InactiveCN103451261AEasy to useGood indicationMicrobiological testing/measurementBuffering agentSodium thioglycollate
The invention discloses an anaerobic indicator. The anaerobic indicator consists of the following components in parts by weight: 100-1000 parts of sodium thioglycolate, 10-100 parts of methylene blue, 100-500 parts of a buffering agent, 5-10 parts of phenol red and 100-500 parts of agar. The anaerobic indicator disclosed by the invention has low cost and convenience in use, and is spilled out. Moreover, the color of the anaerobic indicator is easy to judge.
Owner:青岛高科技工业园海博生物技术有限公司
A kind of method of reverse flotation zinc silicate
The invention relates to a reverse flotation method for zinc silicate. The method includes the following steps that sulfuric acid serves as a pH value adjusting agent; acidified sodium silicate and sodium thioglycollate serve as a zinc silicate inhibiting agent; diethyl phthalate serves as a foaming agent; sodium stearate serves as a collecting agent of gangue minerals; in the flotation process, after sulfuric acid is added into ore pulp with monomers separated to adjust the pH value to 4.5 to 5.0, acidified sodium silicate and sodium thioglycollate are added to inhibit zinc silicate; then, diethyl phthalate is added to serve as the foaming agent; sodium stearate is added to serve as the collecting agent of gangue minerals; flotation froth serves as tailings; and zinc silicate concentrate exists in a flotation tank. By means of the reverse flotation method, zinc silicate minerals can be effectively recycled, and zinc silicate concentrate with the zinc concentrate grade being 41-46% and the recycling rate being 90% or higher can be obtained through rough floatation and sweeping flotation under the condition that the grade of feeding ore zinc is 10-18%.
Owner:HUBEI FORBON TECH
Culture medium for separating and counting clostridium butyricum
ActiveCN111763652AAchieve separationTo achieve the purpose of countingBacteriaMicrobiological testing/measurementBiotechnologyThio-
The invention relates to a culture medium for separating and counting clostridium butyricum, and belongs to the field of microbial separation and counting. The culture medium comprises 15.0 g of casein tryptone, 3.0 g of beef extract powder, 1.0 g of yeast extract powder, 5.0 g of sodium chloride, 0.5 g of L-cysteine hydrochloride, 0.5 g of sodium thioglycolate, 10.0 g of xylose, 0.04 g of bromothymol blue, 15.0 g of agar powder, 900ml of purified water, 0.25 g of D-cycloserine, 0.012 g of kanamycin sulfate and 25 ml of yolk. Compared with the prior art, the culture medium has the beneficial effects that firstly, the culture medium provided by the invention can obviously distinguish clostridium butyricum from other bacteria through visual inspection by analyzing the specific physiologicalcharacteristics of clostridium butyricum and carrying out formula combination and adjustment in a targeted manner, so that the purposes of separating and counting clostridium butyricum are achieved; and secondly, the effect is remarkable, direct and effective, and the cost is low.
Owner:山东拓普生物工程有限公司
Method for recovering elemental sulfur from oxygen pressure leaching residues
The invention discloses a method for recovering elemental sulfur from oxygen pressure leaching residues, which comprises the following steps: firstly, dissociating elemental sulfur from mineral substances by adopting a grinding process, and then adopting N, N '-diethyldithiocarbamate and neutral oil as collecting agents and sodium thioglycolate as an inhibitor in flotation operation; the N, N-diethyldithiocarbamate and neutral oil synergistic collecting system is adopted in flotation operation, under the organic inhibition effect of bifunctional sodium thioglycollate, the number of times of concentration can be reduced, the grade of the sulfur concentrate can be improved, high-grade sulfur concentrate is successfully obtained through roughing and concentration of the flotation column, the grade can reach 90% or above, and the recovery rate can reach 80% or above. In addition, the method does not need heating or roasting, the used medicament is acid-resistant, the filtrate can be recycled, and the method has the advantages of simple process, low energy consumption, high resource recovery rate and the like, is suitable for efficient recovery of elemental sulfur in the oxygen pressure leaching process waste residues of zinc, copper, nickel and the like, and has a wide application prospect.
Owner:DANXIA SMELTER OF SHENZHEN ZHONGJIN LINGNAN NONFEMET CO LTD +1
Method and system for preparing ammonium thioglycolate from thionocarbamate production waste liquid
PendingCN121717742AThiol preparationOrganic compound preparationSodium acetateAmmonium thioglycolate
The invention discloses a method for preparing ammonium thioglycolate from thionocarbamate production waste liquid, which comprises the following steps: 1) adding acid into the thionocarbamate production waste liquid to obtain a solution containing thioglycolic acid; (2) extracting the solution containing mercaptoacetic acid by adopting an extracting agent to obtain an extracting solution containing mercaptoacetic acid; the extraction agent comprises an amine extraction agent; and (3) carrying out back extraction on the extracting solution containing mercaptoacetic acid by adopting ammonia water, so as to obtain a back extraction solution containing ammonium mercaptoacetate. According to the method, ammonium thioglycolate is prepared from the thionocarbamate waste liquid, so that the problem of recycling the sodium thioglycolate waste water generated in the thionocarbamate production process is solved, and ammonium thioglycolate with relatively high economic value is obtained. In addition, the extraction process in the method can also realize separation of sodium salt and other organic impurities in the wastewater containing sodium thioglycollate.
Owner:ZHENGZHOU TIANYI EXTRACTION TECH
A Flotation Separation Agent System of Copper-Molybdenum Mixed Concentrate and Its Application
ActiveCN110548600BReduce mutual inclusionExcellent separation indexFlotationPharmacySodium thioglycollate
The invention discloses a copper-molybdenum mixed concentrate flotation separation agent system and its application; the copper-molybdenum mixed concentrate flotation separation agent system includes a copper mineral inhibitor and a molybdenum mineral collector in the copper-molybdenum flotation separation process and foaming agents. Wherein, the copper mineral inhibitor includes by weight: 3-7 parts of sodium hydroxide, 3-6 parts of hydrogen peroxide, 15-25 parts of sodium thioglycolate, 2 parts of pentasodium diethylenetriaminepentaacetate -5 parts, an appropriate amount of water; the molybdenum mineral collector includes by weight parts: 20-30 parts of kerosene, 5-10 parts of tert-dodecylmercaptan; the foaming agent is 2-hexanol. The inhibitor and collector of the invention have strong selective adsorption capacity, excellent synergistic performance, strong foaming agent group activity, brittle and dense foam formed, and good mineralization effect. The copper-molybdenum flotation separation agent system of the present invention can greatly improve the difference in floatability between molybdenum minerals and copper minerals in complex and difficult-to-separate copper-molybdenum mixed concentrates, effectively reduce the mutual inclusion of copper and molybdenum, and the separation index is excellent. It is harmless and has little impact on the environment.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
Preparation of ZnO/ ZnS/ Ag nano-rod array in microchannel
InactiveCN102060263BRealize continuous constructionEasy to operateNanostructure manufactureDecorative surface effectsChemical synthesisNano structuring
The invention relates to a preparation method of a ZnO / ZnS / Ag nano-rod array in a microchannel, which comprises the steps: preparing a ZnO nano-rod array on the inner surface in the microchannel by a wet chemical method, sequentially conveying a thioacetamide solution, a sodium thioglycollate solution and a prepared fresh Ag sol into the microchannel preset with the ZnO nano-rod array, and continuously constructing a multilayer-structure nano-rod array of ZnO, ZnS and Ag on the inner surface in the microchannel. As the wet chemical synthesis method is utilized to be combined with continuous flow of microfluid, the multilayer nano-structure can be continuously constructed on the inner surface in the microchannel of a capillary tube, and the operation is simple; and the special nano-structure constructed on the inner surface in the microchannel solves the problem that the conventional micro-machining method can not be operated deeply in the closed microchannel, and is good in application prospect.
Owner:DONGHUA UNIV
Method for enriching zinc silicate minerals by reverse flotation under acidic conditions
A method for reverse floatation of an enriched zinc silicate mineral in an acidic condition comprises the following steps: using sulfuric acid as a pH value regulator, using acidified sodium silicate and sodium thioglycollate as an inhibitor for the zinc silicate mineral, and using oxidized paraffin soap and sodium dodecyl sulfate as a collector for the zinc silicate mineral. By the adoption of the method, the zinc silicate mineral can be effectively recycled, and under the condition that the feeding zinc grade is 11.27-17.80%, the zinc silicate concentrate with the grade being 39.24-44.90% and the recycling rate being 82.55-88.20% can be obtained after three-time reverse floatation.
Owner:GUANGXI UNIV
A kind of production method of high-grade sodium thioglycolate powder
ActiveCN105218417BAirtight packagingNot easily oxidizedThiol preparationSodium chloroacetateChloroacetic acids
Owner:SHAANXI HUAGUANG IND