85results about How to "Stable process flow" patented technology

The invention discloses a method for separating copper-molybdenum mixed concentrate high in secondary copper content. The method includes the steps of concentrating and filtering, water returning and size mixing, floatation separation, concentrate filtering and the like. The method abides by floatability property difference between copper molybdenum minerals, adopts sodium hydrosulfide to effectively inhibit primary copper and secondary copper and realizes high-efficiency separation of the copper-molybdenum mixed concentrate according to an idea of 'light pressing and slow selecting'. Copper concentrate going through dense overflow water can be used for size mixing of the copper-molybdenum mixed concentrate after concentrating and filtering, so that water resources are saved, and pollution caused by discharging of medicament is reduced. The method has the advantages of simplicity in medicament system and flowage structure, easiness in management operation, stability in technical process and production index and the like.

The invention relates to a making method of organic selenium pine pollen belonging in biotechnological field with the purpose of providing the making method that can amplify utility of the pine pollen and improve nutrition and medicinal value of the organic selenium pine pollen, which is characterized by the following: converting inorganic selenium to be the organic selenium; using straw of agronomic crop as base material to add absorbent and water-loss agent to produce the organic selenium agent; getting the organic selenium pine pollen with 10-50mg Se / kg selenium through reasonable cultivating and biotransformation. In comparison with the general, the organic selenium pine pollen improves the nutrition and medicinal values greatly with selenium that is 100-500 times as high as the general, which can be adopted in fields of food, health products, drug and medical treatment extensively because of the selenium being organic state with more stable and secure. In addition, the technique can be controlled to operate easily and the raw material can be purchasing easily with the low production cost and high added value of the product.

The invention discloses a method of strip still temperature technology transition, which can realize automatic control even when the aim temperature of strip goals is greater than 20deg.C. During the strip still temperature technology transition, it uses the principle of high temperature priority when the original aim temperature is different, and when facing the hypothermia step, it omits hypothermia. When the strip still transits from low to high temperature, it warms the still in advance according to specification and speed of subasembly.

The present invention is cell DNA staining kit for use in life science and medicine, especially the sole staining of cell nucleus, and its preparation process. The kit includes DNA staining solution, DNA fixing solution and DNA rinsing liquid in the volume ratio of 1.05 to 2 to 1. It is prepared through the following steps: preparing DNA staining solution, preparing DNA fixing solution, preparing DNA rinsing liquid, preparing cell preserving solution, and setting slide glass, the DNA staining solution, the DNA fixing solution, the DNA rinsing liquid and the cell preserving solution into a box to constitute the cell DNA staining kit. The present invention facilitates cell DNA staining and raises the accuracy.

The invention provides a melting method for HIC (Hydrogen Induced Crack)-resistant pipeline steel. The melting method comprises the following steps: performing pretreatment on molten iron, melting ina converter, performing primary LF refining, performing RH vacuum treatment, performing secondary LF refining, performing VD vacuum treatment and performing continuous casting. The invention providesa stable control process for melting molten steel with ultra-low carbon, ultra-low sulphur, ultra-low phosphorus and high cleanliness; in the molten steel, C is less than or equal to 0.04, S is less than or equal to 0.001, P is less than or equal to 0.006, Ca is between 0.002 and 0.003, and the ratio of acid soluble aluminium to all aluminium is greater than or equal to 0.95; the component controlrequirements of the HIS-resistant pipeline steel on the ultra-low carbon, the ultra-low sulphur, the ultra-low phosphorus and the high cleanliness are met.

Provided is a method for enriching and preparing pure gold from an antimony-gold alloy through potential control. The method for enriching and preparing the pure gold from the antimony-gold alloy through potential control comprises the following steps that after the antimony-gold alloy is crushed and levigated to a required particle size, hydrogen peroxide is added into a pure hydrochloric acid system to conduct potential controlling and oxidizing leaching, slurry after being leached is added into copper powder to conduct potential controlling and displacing, raw gold powder is obtained after displacement residue is soaked and digested in concentrated sulfuric acid, the hydrogen peroxide is added into a hydrochloric acid solution containing the raw gold powder to conduct potential controlling and gold leaching by chlorination, gold leaching liquid is added into sodium hydroxide and sodium sulfite to conduct potential controlling and reduction, and gold powder is obtained, and pure gold powder is obtained after the gold powder is washed. According to the method for enriching and preparing the pure gold from the antimony-gold alloy through potential control, a potential control mode is adopted to achieve the purpose that the processes of oxidation leaching, displacement, gold leaching by chlorination, reduction and the like are adjustable and controllable, and the direct recovery rates of gold and silver reach to over 99.9% and 99.0% correspondingly. The method has the advantages of being good in metal separation effect, stable in technical index, short in technological process and the like.

The invention discloses a technological process of nine-steamed and nine-processed radix rehmanniae preparata. Specifically, the technological process comprises the following steps: S1, fetching materials; S2, selecting the materials; S3, washing the drugs (the materials); S4, soaking the drugs in wine; S5, conducting steaming for the first time; S6, conducting drying for the first time; S7, conducting blending and wetting for the first time; S8, conducting steaming for the second time; S9, conducting drying for the second time; S10, conducting blending and wetting for the second time; S11, conducting steaming for the third time; S12, conducting drying for the third time; S13, conducting blending and wetting for the third time; S14, conducting steaming for the fourth time; S15, conductingdrying for the fourth time; S16, conducting blending and wetting for the fourth time; S17, conducting steaming for the fifth time; S18, conducting drying for the fifth time; S19, conducting blending and wetting for the fifth time; S20, conducting steaming for the sixth time; S21, conducting drying for the sixth time; S22, conducting blending and wetting for the sixth time; S23, conducting steamingfor the seventh time; S24, conducting drying for the seventh time; S25, conducting blending and wetting for the seventh time; S26, conducting steaming for the eighth time; S27, conducting drying forthe eighth time; S28, conducting blending and wetting for the eighth time; S29, conducting steaming for the ninth time; S30, conducting drying for the ninth time; S31, conducting slicing; S32, conducting drying for the tenth time; and S33, implementing packaging. The technological process provided by the invention conforms to practical production and management requirements of GMP.

The invention discloses a monitor system of resource utilization of wet method rare earth smelting high ammonia-nitrogen wastewater, and the monitoring system comprises the following modules: a wastewater flow control module used to control flow of flowing-in wastewater; an ammonia distillation tower control module used for monitoring the ammonia distillation tower liquid level, temperature and pressure; a discharge control module using ammonia nitrogen detection units arranged at the ammonia distillation tower bottom and a comprehensive treatment tank to detect ammonia nitrogen concentration in wastewater and controlling a lift pump to discharge the wastewater; a cold source circulating module used for real-time monitoring of cooler wastewater temperature and cooler liquid level and control of discharge value of two outlet of a cooler; and a computer workstation which is respectively connected with the wastewater flow control module, the ammonia distillation tower control module, the discharge control module and the cold source circulating module for acquisition and display of process data and process information; when the process data and process information cannot be acquired or exceed thresholds, an information alarm is generated. The monitor system can strengthen the wastewater discharge and cold source circulation control and realize the monitoring of the whole process of recovery.

The invention discloses a high-purity lithium chloride production technology. An apparatus in the production technology comprises a filter press, a blending pot for acid adjusting treatment, an extraction system, a washing system and a back-extraction system connected by the multistage centrifugation extraction machines in series respectively, an iron-removal system and an oil removing system which are connected in order through the pipelines, wherein, an output terminal of a back extraction solution of the back-extraction system is connected with the washing system, an organic phase output terminal of the back-extraction system is connected with a saponification system, the saponification system is connected with the extraction system; and the extraction system, the washing system, the back-extraction system and the saponification system form a circulation loop. The apparatus also comprises a data analysis system capable of switching an abnormal centrifugation extraction machine station to a backup centrifugation extraction machine. A frequency-conversion closed loop flow control system is arranged at a material input of each system of the circulation loop, and the accurate flowing and input phase ratio can be obtained by appropriate adjusting. The apparatus has the advantages of high extraction efficiency, fast establishing time for phase equilibrium, small solvent required amount, small consumption of a solvent, and continuous and reliable processes.

The invention provides a method for preparing large-area graphene paper by utilizing hydroiodic acid. The method comprises the following steps: (1) preparing oxidized graphene by utilizing an improved Hummers method; (2) dispersing the oxidized graphene prepared in the step (1) in deionized water with ultrasonic to form uniformly dispersed oxidized graphene solution, and drying the oxidized graphene solution to obtain oxidized graphene paper; (3) putting the oxidized graphene paper obtained in the step (2) in a glass-substrate container; and (4) washing the reactant with deionized water after the reducing reaction is completed, and drying to obtain the large-area graphene paper. The method can be used for simply and quickly preparing graphene paper by utilizing hydroiodic acid reducing culture dish and other glass-substrate oxidized graphene paper, has simple, efficient, stable and controllable process flow, has the cost far lower than those of conventional graphene paper preparation methods, and has a wide application value in supercapacitors, electrodes, optoelectronic devices and the like.

The invention discloses a process method for the application of ceramic particle filter material in the iron and steel industry wastewater treatment. In the filter tank of the iron and steel industry wastewater treatment device, the ceramic particle filter material is filled, and the ceramic particle filter material includes ceramsite filter material, porcelain sand The filter material and the ceramic ball filter material are filled in the filter tank in layers from top to bottom. The wastewater from the iron and steel industry enters from the upper end of the filter tank after the first sedimentation and the second advection sedimentation. Through the interception and adsorption of the ceramic particle filter material, the water Separation from suspended pollutants to discharge clear water. Using ceramic particle filter material instead of cobblestone, quartz sand and anthracite filter material in the past not only simplifies the process flow, reduces the cost of production, improves the processing efficiency, and improves the working environment; but also has a good filtration and purification effect, and the filtered water quality is clear without turbidity. Although the one-time filling cost is high, the service life of the filter material is increased by at least 6 times, the annual cost of the filter material is 40-50% lower than the annual cost of the traditional filter material, and the wastewater treatment and filtration interception capacity is increased by more than 30%. Zero discharge of waste water can be realized.

The invention relates to an oily sewage all-in-one processing apparatus. The apparatus is arranged on an integrated pedestal and contains a water inlet, a demulsifier dosing device, a flocculating agent dosing device, a dosing device control cabinet, a CPI degreaser, an air floatation inflow lift pump, a DAF dissolved air flotation, a middle water tank, a walnut shell filter, an activated carbon filter and a water outlet. The CPI degreaser, the DAF dissolved air flotation, the walnut shell filter and the activated carbon filter are connected successively. The water inlet is communicated to the CPI degreaser through a pipeline which is provided with the demulsifier dosing device. The CPI degreaser is communicated to the DAF dissolved air flotation, an inlet of which is provided with the flocculating agent dosing device. The oily sewage all-in-one processing apparatus has advantages of compact structure, good degreasing effect, small floor area, convenient usage and stable operation.

The invention discloses a manufacturing method of a germanium-silicon heterojunction bipolar triode device. The method includes that a current collecting area is prepared by a low-doping N-type epitaxial process, a heavy N-type doped low-resistance buried layer passage is arranged at the bottom, and high-dose middle-energy N-type ions are injected in a current collecting electrode active area to form a current collecting electrode leading-out end; after an isolation area is formed, surface cleaning and growing of a germanium-silicon epitaxial layer of a thick buffering layer are performed, the germanium-silicon epitaxial layer outside a base area and an outer base area is defined by photoetching and removed by dry-etching; an emitting electrode window medium is deposited, an emitting electrode window and the whole current collecting electrode active area are opened by photoetching, dry-etching and wet-etching, N-type heavily-doped emitting electrode polysilicon is deposited, and an N-type emitting electrode-base electrode junction and a lower-resistance passage are formed. Polysilicon thickness of the outer base area is increased by adjusting thickness of the germanium-silicon buffering layer, so that resistance performance of the base area is guaranteed, process cost is lowered, and more stable technological process and higher product yield are acquired.