34results about How to "Unavailable solution" patented technology

The invention discloses a method for preparing chemical alumina by using andalusite as a raw material. The preparation of chemical alumina is from the tailings of andalusite ore dressing through ball making, roasting, multi-stage separation, adding additives and granulation. The chemical alumina with a purity of 99.5-99.999% is extracted from the ore as a raw material, so that the andalusite resource can be comprehensively utilized, which not only saves resources, but also protects the environment.

The invention provides a preparation method of chloramphenicol compounds. The preparation method comprises the following steps: adding a chloramphenicol intermediate product to a buffer solution; then, adding ketoreductase to the solution so as to obtain a mixed solution; and conducting a reaction on the mixed solution at 25-35 DEG C, so that the chloramphenicol compounds are obtained. The preparation method of the chloramphenicol compounds provided by the invention not only reduces raw material cost but also improves economy of raw materials and improves yield; and the problems of the prior art that isomer by-products, obtained from the preparation of chloramphenicol, cannot be used, raw material cost is high and yield is low are solved.

The present invention relates to a manned diving instrument position measurement time-delaying processing method. It is characterized by that it makes the currently-obtained over-time ultrashort baseline position measured value be compromised into manned diving instrument position culculation by means of Kallman filtering algorithm so as to implement optimum treatment of current manned diving instrument position information.

The invention discloses a method for industrially preparing aluminum hydroxide, alumina and aluminum fluoride from andalusite sericite phyllite as a raw material, which comprises the steps of: extracting aluminum hydroxide with the purity of 96-98.5 percent from the andalusite sericite phyllite as the raw material in a mode of ball production, calcinations, multistage separation and auxiliary agent addition; then calcinating the raw material to obtain the alumina; and reacting fluorine hydride gas with wet hydrogen alumina and dehydrating and drying to obtain the aluminum fluoride. The method solves the problem that pseudo andalusite-sericite phyllite ore in Qingliu County, Sanming City, Fujian Province cannot be utilized; and the prepared aluminum hydroxide, alumina and aluminum fluoride accord with national standard.

The invention discloses an organic fertilizer prepared from red mud and a production process of the organic fertilizer. The organic fertilizer includes animal excrements, straw, distillers' grains, saw dust, red mud, humic acid, low-molecular-weight organic acid, edible mushroom waste, bone meal, an antiviral agent and a microbial agent. The organic fertilizer has the advantages that the animal excrements, red mud, saw dust and straw are adopted as the raw materials, waste utilization is realized, environmental pollution is reduced, and the problem that the red mud cannot be utilized and pollutes the environment is solved. The low-molecular-weight organic acid and aluminum ions in the organic fertilizer cannot be absorbed by plants and fail after being exchanged and complexed, and nutrients in the red mud and other raw materials interact and can provide calcium, silicone and corresponding trace elements for crops; iron, silicone, calcium, magnesium and other nutrient elements are addedon the basis of an original organic fertilizer, the growth of the crops is promoted, diseases and insect pests can be reduced, an iron fertilizer is replaced, and a certain improvement effect on soilis realized.

The invention discloses chemical co-production equipment and a method for phosphorus and coal. The equipment is characterized in that high-temperature crude synthesis gas produced in a coal gasifyingreaction is taken as a heat source for producing yellow phosphorus, so that the problem that heat at a high-temperature segment of the crude synthesis gas produced in the coal gasifying reaction cannot be used is solved; moreover, heat can be supplied to yellow phosphorus production, and the energy utilization rate is high; meanwhile, a reaction product CO produced during yellow phosphorus production and the crude synthesis gas are taken as raw materials of synthesis ammonia, so that the yield of liquid ammonia is increased, and a production process is efficient and contributes to energy saving and environment protection. The chemical co-production equipment for the phosphorus and coal comprises a raw material storing-transporting unit, a grinding unit, a pelletizing-drying unit, a reducing reaction unit, a slag cooling unit, a separating-washing unit, an air separating unit, a gasifying unit, a converting unit, a purifying unit and a synthesizing unit. The chemical co-production equipment and method have the advantages of simplified process flow, technically mature in units, energy saving, environmental friendliness and low application risk, and a beneficial technical option is provided for phosphorus and coal chemical complementation in various fields.

The invention discloses a method of simultaneously producing crystallized sorbitol and daily chemical sorbitol. According to the method disclosed by the invention, the crystallized sorbitol and the daily chemical sorbitol are simultaneously obtained by taking starch as a raw material and through size mixing of the starch, liquefying, saccharifying, impurity removal, deacidification and desalination, evaporation and concentration, hydrogenation, sedimentation and decoloration, desalination, as well as washing, filtering and purifying. The method disclosed by the invention has the advantages of high efficiency, high raw material utilization rate, high additional value of products, short process flow, low production cost, low energy consumption, energy saving and water saving, and a prepared crystallized sorbitol product is high in purity and capable of meeting the requirements of applying to the field of industries, such as medicines, food and Vc; in the meantime, the obtained daily chemical sorbitol as a side product has good physical and chemical properties and can meet the requirements of preparing the daily chemical products, such as toothpaste, cosmetics and cigarettes.

The invention provides an omarigliptin intermediate preparation method. The omarigliptin intermediate preparation method comprises the step of mixing a compound I with a catalyzing enzyme, and reacting to obtain an omarigliptin intermediate. The omarigliptin intermediate preparation method has the beneficial effects that the cost of raw materials is reduced; the problem in the prior art that isomer byproducts are generated during preparation of the omarigliptin intermediate and cannot be utilized is effectively solved; the yield and atom economy are increased; and the omarigliptin intermediate preparation method is simple in operation, mild in conditions, environment-friendly and suitable for industrial production.

The invention belongs to the field of masks, and particularly relates to an acne and freckle removing essence mask and a preparation method. Components of a mask essence, a preparation method of a spray mask and a cosmetic bottle for the spray mask are involved. The components of the mask essence have the good effects of cleaning and moisturizing the skin, resisting oil and whitening the skin, removing freckles and acne, and nursing the skin mildly without irritation. By adopting the preparation method, the active ingredients in the spray mask are ensured to the maximum, and the skin is better nursed; the spray mask needs to be used in cooperation with the cosmetic bottle for the spray mask, the function of assisting in spraying the mask can be achieved, and the effect of making the essence fully absorbed is achieved.

The invention discloses a cement caking waste grinding device. The cement caking waste grinding device comprises a double-gate type circulating screening and feeding device, a stepped continuous layered grinding device and an independent detachable material collecting device, the stepped continuous layered grinding device is arranged on the double-gate type circulating screening and feeding device, and the independent detachable material collecting device is arranged on the double-gate type circulating screening and feeding device. The invention belongs to the technical field of building material waste recovery, and particularly relates to the cement caking waste grinding device and a using method thereof. Blanking, screening and secondary grinding of large particles which are not completely ground are orderly controlled through the double-gate type circulating screening and feeding device, a grinding part is designed to be the stepped continuous layered grinding device, the effect of continuous grinding in a relatively closed space is achieved, during grinding, a grinding base and cement powder on the base are heated through an electric heating plate, and the problems that in the prior art, cement recycling treatment is difficult, and in the prior art, moisture is not easy to control, and grinding efficiency is low are effectively solved.

The invention discloses a method for red mud reduction by adopting a gas-based shaft furnace. The method comprises the following steps: preparing red mud powder; mixing the red mud powder, CaO and water to prepare a first pellet; drying the first pellet, and roasting the dried first pellet into an oxidization pellet; feeding the oxidization pellet in the gas-based shaft furnace for reduction to obtain a metallized pellet; cooling, crushing and wet-grinding the metallized pellet, and then magnetic separation is carried out to obtain a magnetic substance and magnetic separation slag; and adopting the magnetic substance for steelmaking. According to the invention, the gas-based shaft furnace is adopted for red mud reduction without metallurgical coke, coking coal is not consumed, the technological processes are few, the coking step is eliminated, energy consumption of a system is reduced, and emission of pollutant is also reduced. The technology is simple and suitable for large-scale industrial production.

The invention discloses a heat preservation water tank capable of efficiently storing and utilizing solar energy heat through automatic separation and combination manners. The heat preservation water tank is composed of an outer tank, a heat preservation layer, a first level water storing tank, a second water storing tank, a cold water inlet, an overflow hole which is utilized as an exhaust hole, an auxiliary electrical heating device, a hot water outlet, the exhaust hole, a U-shaped pipe sewage draining hole, a temperature controlled switch, a U-shaped pipe and an extending pipe, wherein two convection holes are formed between the two water tanks and are respectively provided with a convection temperature controlled switch, so that heat use ratio of solar energy is improved when the sunlight is not good, and heat storage volume of solar energy is improved when the sunlight intensity is high; one end of the U-shaped pipe is provided with a small temperature controlled switch and the extending pipe, a condition that water in the two water tanks is not mixed when the water tanks are electrically heated in rainy days is guaranteed, when the hot water is used, cold water can not enter the water tank, and the water in the two water tanks is used up in sunny day, so that the problem that abundant time and electricity are consumed during electric heating by the one-tank solar water heater is solved, and the problems that when a common two-tank solar water heater is used, cold water enters while hot water is used, so that the hot water can not be completely utilized, and the energy utilization rate is low are also solved.

The invention discloses an all-weather wind power generation system comprising a wind power collector in a trumpet shape, a settling chamber used for settling sands and dusts, a transmission pipe, a one-way valve, a pressure storage chamber, turbo generator units and diversion pipes used for distributing air flow into a plurality of turbo generator units. The wind power collector in the trumpet shape is arranged on a prevailing wind flue and a big mouth of the wind power collector in the trumpet shape faces towards the wind. The settling chamber is placed at the rear end of the wind power collector in the trumpet shape. The transmission pipe is arranged in front of the settling chamber and is communicated with a pipe at the tail portion of the wind power collector. The one-way valve is installed in the transmission pipe. One side of the pressure storage chamber is connected with the transmission pipe, and the other side of the pressure storage chamber is connected with the turbo generator units through a plurality of diversion pipes. The all-weather wind power generation system has a spot energy effect. Due to the adoption of a turbo generator unit power generation device which is mature in technique and high in efficiency, the utilization rate of wind power is high. The wind power can directly become energy which can be transmitted remotely.

Disclosed are a network device and a resource allocation method. In the present invention, after a node device in a first PLC network receives common dormancy time information sent by a node device in a second PLC network, information is transmitted by using a timeslot that is corresponding to the common dormancy time and is scheduled by the second PLC network, so that the problem is solved that a time resource corresponding to the second PLC network is idle and cannot be used when the node device in the second PLC network enters dormancy, thereby improving the utilization rate of the time resource.