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1346 results about "Tributyl phosphate" patented technology

Tributyl phosphate, known commonly as TBP, is an organophosphorus compound with the chemical formula (CH₃CH₂CH₂CH₂O)₃PO. This colourless, odorless liquid finds some applications as an extractant and a plasticizer. It is an ester of phosphoric acid with n-butanol.

Nitrogen-containing graphitized carbon material adopting double-metal MOFs (metal organic frameworks)

The invention provides a nitrogen-containing graphitized carbon material adopting double-metal MOFs (metal organic frameworks). The material is prepared with a method as follows: S1, 2-methylimidazole is dissolved to form a solution A, cobalt salt and zinc salt are mixed to form a solution B, the solution A and the solution B are mixed, left to stand, centrifugalized, washed and dried, and double-metal MOF precursors are obtained; S2, the double-metal MOF precursors formed in S1 are calcined in an inert gas atmosphere, and the calcined double-metal MOF precursors are obtained; S3, the calcined double-metal MOF precursors formed in S2 are mixed with triphenylphosphine or tributyl phosphate in a solution, the mixture is calcined in an inert gas atmosphere, washed and dried, and the nitrogen-containing graphitized carbon material adopting the double-metal MOFs is obtained. The invention provides a highly-graphitized porous carbon material which is high in specific surface area and hierarchically porous, realizes uniform nitrogen doping and contains rich metal-nitrogen structures, the activity of the product in oxygen evolution through water electrolysis is more excellent than that of commercial ruthenium oxide, and the material has great application prospects in energy storage materials.
Owner:SUN YAT SEN UNIV

Far infrared negative ion functional non-woven fabric and preparation method thereof

The invention discloses a far infrared negative ion functional non-woven fabric. The far infrared negative ion functional non-woven fabric consists of a top surface layer, a back face layer and a fiber cotton layer clamped between the top surface layer and the back face layer, wherein the top surface layer and the back face layer are made of a non-woven fabric material. The non-woven fabric is prepared from the following raw materials in parts by weight through a melt blowing method: 100 parts of isotactic polypropylene, 3-4 parts of tourmaline, 2-3 parts of aluminum oxide, 1-2 parts of zinc oxide, 12-15 parts of tributyl phosphate, 1-2 parts of titanium dioxide, 6-8 parts of dibutyl maleate, 2-3 parts of 3-aminopropyltrimethoxysilane, 2-3 parts of polyethylene glycol, 3-4 parts of urea, 2-3 parts of grassleaf sweelflag rhizome, 1-2 parts of lily, 2-3 parts of kudzuvine root and 4-5 parts of aid. The non-woven fabric has far infrared, negative ions, antibacterial and deodorization functions. Due to the adoption of the isotactic polypropylene, the non-woven fabric has the characteristics of heat resistance, corrosion resistance, nontoxicity and no odor, is high in tensile strength and bonding property, does not produce dust or scrap, and has the functions of perfuming and health care.
Owner:芜湖跃飞新型吸音材料股份有限公司

Ecological synthetic utilization method of fly ash

The invention relates to an ecological synthetic utilization method of fly ash, and the method has the following steps: (1) selecting fly ash which contains aluminum oxide, iron oxide and silicon oxide as a raw material, wherein the mass content of aluminum oxide, iron oxide and silicon oxide are respectively 20-45%, 10-40% and 30-50%, performing a fine grinding and then leaching; (2) filtering and separating to obtain a leaching solution and leaching residue; adding tributyl phosphate and a diluent in the leaching solution to extract, wherein aluminum enters in raffinate phase to form an aluminum chloride solution as well as iron enters in raffinate phase; (3) performing a liquid atomizing pyrolysis to aluminum chloride to obtain aluminum oxide; (4) using water as a re-extraction preparation in raffinate phase for carrying out a re-extraction, wherein iron enters in the re-extraction preparation to form an iron chloride solution; performing a liquid atomizing pyrolysis to iron chloride to obtain iron red. According to the invention, the valuable elements of aluminum, iron, silicon and the like in fly ash are synthetically utilized, the process flow is short and the operation is simple, so that the ecological synthetic utilization method realizes the synthetic utilization of all the valuable elements of aluminum, iron, silicon and the like in fly ash.
Owner:DONGDA NONFERROUS SOLID WASTE TECH RES INST LIAOLING CO LTD

Multi-metal recycling method of electric furnace tin-smelting dust

The invention discloses a multi-metal recycling method of electric furnace tin-smelting dust. The method comprises the following steps: electric furnace tin-smelting dust is placed in a reaction kettle, sulfuric acid or / and raffinate are added to perform neutral leaching so that metals such as zinc are leached in the neutral solution and indium, tin and lead are left in residues; the neutral residues are placed in a reaction kettle, concentrated sulfuric acid is added for cure leaching, cleaning solution is added after the reaction to ensure that indium and a part of tin are leached in the solution and most of tin and lead are left in residues; extractant P204 is used to extract the indium and tin of the leachate and separate indium and tin from zinc, hydrochloric acid is used to perform backextraction to the extract so that tin and indium can be separated from the organic phase through backextraction and high concentration indium-tin mixed backextraction solution can be obtained; tributyl phosphate (TBP) extractant is used to extract tin to obtain material solution with indium and material solution with tin; and the material solution with indium is replaced by using a zinc plate and casted to obtain crude indium, the crude indium is electrolyzed and purified to obtain a refined indium product. The method combines the mature concentrated acid curing technology, extraction technology and other technologies into a whole, solves the separation problem of indium and tin and ensures that various high-value metals in the electric furnace dust can be recycled efficiently, continuously and largely; and the actual indium yield is more than 80% and the purity of the refined indium is more than 99.93%.
Owner:刘辉 +1

Method for manufacturing industrial phosphoric acid, industrial ammonium phosphate and food-grade phosphoric acid from medium and low-grade phosphorite by one-step extraction of hydrochloric acid method

The invention discloses a method for manufacturing industrial phosphoric acid, industrial ammonium phosphate and food-grade phosphoric acid from medium and low-grade phosphorite by one-step extraction of a hydrochloric acid method. The method is characterized by comprising the following steps of: decomposing any phosphorite (the P2O5 of which is more than or equal to 6 weight percent) by using hydrochloric acid, preparing calcium chloride dihydrogen phosphate CaClH2PO4.H2O (P-01 for short), adding dilute phosphoric acid, pulping, filtering and purifying the P-01, pulping and dissolving the P-01 with hydrochloric acid, performing extraction by using tributyl phosphate, performing concentration and decolorization to obtain the industrial phosphoric acid, adding ammonia into the industrial phosphoric acid to obtain the industrial ammonium phosphate, or adding P2S5 into the concentrated industrial phosphoric acid to remove arsenic and heavy metal, performing decolorization by using active carbon and hydrogen peroxide and removing easily oxidized substances to reach the index requirement of the food-grade phosphoric acid.
Owner:上海协达精细化工研发有限公司
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