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51results about How to "Reduce decomposition loss" patented technology

Purification method of 3-methyl-3-butene-1-ol

The invention discloses a purification method of 3-methyl-3-butene-1-ol. According to the method, a solvent is added, and an extractive distillation technology is adopted for separation, wherein the added solvent is high-boiling-point fatty alkane or fatty alkane containing fatty alcohol; the solvent is added from the middle upper area of a rectifying column, and raw materials containing 3-methyl-3-butene-1-ol and isoamyl alcohol are added from the middle area of the rectifying column; a part of a column bottom liquid is gasified by a heater, and obtained gas is returned into the column from agas phase inlet of the column bottom; gas at the column top is totally condensed into a liquid by a condenser and then sent into a column top return tank, and a part of liquid is sent into the columnfrom a return port at the column top by a return pump. The rectifying column is operated under the condition of reduced pressure, a pure product of 3-methyl-3-butene-1-ol is obtained at the column top, and a mixture of isoamyl alcohol and the solvent exists at the column bottom. The method has the advantages that the adopted solvent is relatively stable at the high temperature, and the product of3-methyl-3-butene-1-ol obtained from the column top is favorable for avoiding self-polymerization loss of the product.
Owner:山东成泰新材料有限公司

Hollow packaging box made of high-concentration ozone ice crystals

The invention discloses a hollow packaging box made of high-concentration ozone ice crystals, aiming to overcome defects that normal ice can only cool and suppress breeding of microorganisms and viruses and bacteria attached on surfaces of storages but cannot sterilize the same, and storages are short in preservation period, high in loss and poor in quality due to the fact that the ozone component in ozone ice is easy to decompose. The hollow packaging box made of the high-concentration ozone ice crystals comprises an ice-crystal made packaging box body, an ice-crystal made packaging box cover and an ozone and water solution pouring inlet. By utilizing double functions of bacterium inhibition and sterilization of the ozone component in the hollow ice crystals and an aseptic environment in a closed semi-vacuum state, the design purposes of prolonging the preservation period of the storages and improving green quality thereof are achieved. The hollow packaging box made of the high-concentration ozone ice crystals has the advantages of providing a proper environment capable of killing the microorganisms, viruses and moulds, decomposing harmful components, such as hormone, antibiotics, additives, pesticide residues, heavy metal, containing in the storages, and leading to the dormancy state of the storages within a short time, shortening the precooling time, prolonging the preservation period without any preservatives, improving green quality and being recycled.
Owner:辽宁自然冰科技有限公司

Method for purifying 1, 4-dihydroxy anthraquinone by sublimation under high vacuum

The invention discloses a method for purifying 1, 4-dihydroxy anthraquinone by sublimation under high vacuum. The method comprises the following preparation steps: feeding; dehydrating and fusing; purifying by sublimation; cooling and condensing; opening a tank, collecting and weighing after cooling is finished; and producing a next batch of 1, 4-dihydroxy anthraquinone. By the method provided by the invention, other chemical raw materials are not added, chemical reaction does not exist, waste water does not exist either, a small amount of waste gas can be adsorbed and removed by activated carbon, waste residues are incinerated by qualified units, and therefore, emission of the waste gas, the waste water and the waste residues is avoided basically. Compared with purification by a chemical method and a solvent method, the method has the advantages that the purity of the product is high (greater than or equal to 99%, the yield is high (greater than or equal to 97%), and is environmentally friendly; and secondary pollution is avoided. In addition, the invention further discloses a honeycomb sublimator which is designed according to the principle of infinitesimal. Compared with a reaction kettle type sublimator, the honeycomb sublimator has the features that sublimation time is shortened by more than 5 times, and energy is saved by 70%.
Owner:马骋

Energy plaster for neck, shoulder, waist and legs and preparation method of energy plaster

The invention discloses an energy plaster for neck, shoulder, waist and legs. The energy plaster is prepared from the following active pharmaceutical ingredients: radix aconiti kusenzoffii, radix aconite, rhizoma zingiberis, centipede, frankincense, myrrh, asarum, impatiens balsamina, radix angelicae pubescentis, rheum officinale, radix clematidis, flowers carthami, berba aristolochiae mollissimae, cassia twig, fennel, clove, pseudo-ginseng, dried body of ground beetle, tea root, mulberry bark, angelica sinensis, large-leaved gentian, ligusticum wallichii, radix aconiti carmichaeli slices, camphor, the fruit of medicinal cornel, ephedra, fructus forsythiae, the fruits of Chinese wolfberry, rhizoma cibotii, sesame oil and yellow lead. The energy plaster has a good effect in treating pains on the neck, the shoulder, the waist and the legs, can fundamentally treat pain diseases on the neck, the shoulder, the waist and the legs, and is good in curative effect, free of toxic or side effect, free of dependency, and free of relapse after healing. The energy plaster is mainly used for treating the pains on the neck, the shoulder and the legs, the osteoarthrosis, the rheumatism arthralgia, various inflammations and the like, is good in curative effect, can fundamentally treat pain diseases on the neck, the shoulder, the waist and the legs, and is good in curative effect, free of toxic or side effect, free of dependency, and free of relapse after healing.
Owner:王倩莹

Method for purifying coarse trichloroacetaldehyde

The invention discloses a method for purifying coarse trichloroacetaldehyde. The method comprises the following steps that: the coarse trichloroacetaldehyde is fully mixed with dilute sulphuric acid in a primary microstructure mixer; trichloroacetaldehyde obtained by a primary demixer is fully mixed with concentrated sulfuric acid in a secondary microstructure mixer; trichloroacetaldehyde obtained after being demixed by a secondary demixer is continuously and fully mixed with concentrated sulfuric acid in a third microstructure mixer; trichloroacetaldehyde containing a small amount of sulfuric acid obtained after being demixed by a third demixer is rectified to obtain anhydrous trichloroacetaldehyde; after sulfuric acid demixed by the secondary demixer and the third demixer is mixed, a part of sulfuric acid is used as the dilute sulphuric acid for the primary microstructure mixer, and the residual sulfuric acid is mixed with the sulfuric acid demixed by the primary microstructure mixer and the residual sulfuric acid of a refining distillation kettle to distill and recycle the residual trichloroacetaldehyde; and the recycled trichloroacetaldehyde is mixed with the trichloroacetaldehyde demixed by the primary demixer to enter the secondary microstructure mixer. By the method, the coarse trichloroacetaldehyde is purified, the consumption of steam and the sulfuric acid can be reduced, and the refining yield of the trichloroacetaldehyde is improved.
Owner:XIANGTAN UNIV

Closed-pile ecological restoration method for gold ore dump leaching field

PendingCN112058882AGood decyanation effectEfficient ecological governanceWater contaminantsContaminated soil reclamationPollutantGold ore
The invention relates to a closed-pile ecological restoration method for a gold ore dump leaching field, and belongs to pollutant treatment and ecological restoration methods in the field of environmental protection. The method comprises the following steps of heap leaching heap surface layer earthing, spraying system installation, cyanide-reducing plant planting, leachate treatment and spraying liquid preparation and spraying, and has the advantages that heap leaching heap cyanide-containing leachate treatment, heap leaching residue residual gold leaching and decyanation treatment and heap leaching heap ecological restoration treatment are fused together, efficient decyanation treatment of cyanide-containing leachate and dump leaching residues in the gold ore cyaniding dump leaching process can be achieved, recovery of gold, silver and other valuable metal elements in the leachate and the dump leaching residues can be achieved, ecological restoration and treatment of dump leaching heap can be achieved, the dump leaching field decyanation treatment and ecological restoration period is shortened, a very efficient practical method is provided for environmental governance of gold orecyaniding dump leaching process enterprises, and good application prospects are achieved.
Owner:CHANGCHUN GOLD RES INST

Melt slime granulating composite fertilizer and its production method

A melt slurry tower granulation compound fertilizer and a manufacturing method thereof. A melt slurry tower granulation compound fertilizer is composed of the following components by weight ratio: urea: 45-50 parts; potassium chloride or Potassium sulfate: 20-25 parts; ammonium phosphate: 20-30 parts; filler: 1-5 parts. The invention discloses a method for manufacturing compound fertilizer with melted slurry tower granulation. In the manufacturing process, high-temperature molten urea is used as a carrier, the raw materials are evenly fused, and then sprayed and cooled at the top of the tower to form granules. The height of the tower is 60-120 meters, and the diameter of the tower is 8-20 meters. During the preparation process, no moisture is introduced into the system to bond and granulate, which can prevent agglomeration due to excess moisture. The advantages of the present invention are: the melt method compound fertilizer prepared by the present invention adopts high tower spraying natural cooling and one-time granulation molding technology in the preparation process. This technology does not have returning materials, so that the production capacity is greatly improved. It avoids the problems of low granulation rate and many returning materials due to the traditional method, saves energy and improves equipment utilization. At the same time, because there is almost no dust pollution from returned materials, the working environment is cleaner and the discharge of three wastes is avoided.
Owner:STANLEY AGRI GRP CO LTD

Blueberry juice product on-line clarification technique and blueberry juice pectization agent

InactiveCN103385523BRealize online centrifugal clarificationHigh yieldFood scienceSolubilityFruit juice
The invention discloses a blueberry juice product on-line clarification technique and a blueberry juice pectization agent. The technique comprises the following steps successively: a) cleaning blueberry fruits; b) squeezing; c) preserving heat for enzymolysis; d) preparing a sol; e) mixing; f) fast-cooling; g) centrifugating; and h) producing finished products, etc. The complex pectization agent can coagulate with suspensions in juice rapidly and form denser coagulation products under the coordination of fast-cooling technology, so that the juice is clarified by on-line centrifugation. Residues separated from the blueberry juice by a centrifuge only account for about 1% of the total juice by weight, which means that the yield rate of the juice is largely improved and waste of resources is reduced. The amount of the pectization agent used is minimized, as it only accounts for 0.01 to 0.03% of the total juice, and thus the pectization agent cost is reduced. EDTA-2Na is combined in the formulation of the pectization agent, so that the water-solubility of gels in the pectization agent is improved, and the use of the gels is decreased. Meanwhile, some of the heavy metals in the juice are bound through complexation during pectization, and thus decomposition and loss of anthocyanins are significantly reduced, and nutritional values of the blueberry juice is guaranteed.
Owner:ZHEJIANG LANMEI AGRI +1

Compound ammonium bicarbonate additive and production method thereof

The invention provides a compound ammonium bicarbonate additive and a production method thereof. The ammonium bicarbonate additive is compounded with the following materials: ammonia with mass concentration of 4 to 8 percent, ammonium dodecylbenzenesulfonate, 1-pentadecanesulfonyl chloride and Tween 80. The weight portion ratio of the compounded materials is 45-55:13-15:28-32:3-6. The compounding method comprises the following steps: preparing materials according to the weight portion ratio; adding the ammonia into a reaction kettle, and adding the ammonium dodecylbenzenesulfonate when the ammonia temperature in the kettle is between 58 and 62 DEG C; stirring the mixture of the two, adding the 1-pentadecanesulfonyl chloride when the temperature in the kettle is between 70 and 78 DEG C, stirring for 60 minutes, and slowly reducing temperature; and adding the Tween 80 when the temperature in the kettle is between 58 and 62 DEG C, evenly stirring, cooling to normal temperature, and obtaining a finished product. The ammonium bicarbonate additive prepared by the invention reduces the moisture content of the ammonium bicarbonate finished product to below 3 percent, improves the nitrogen content to over 17 percent, increases crystalline particles, reduces decomposition loss, is not easy to cake, facilitates the storage and transportation of ammonium bicarbonate, and reduces the production cost of the ammonium bicarbonate.
Owner:JIANGSU HEYOU CHEM
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