CAS: 7775-27-1; Sodium Persulfate

专利信息

专利号:US-2020087149-A1
优先权日:2015-07-22
标 题 :Method for the synthesis of nanofluids
发明人：TALAEI ZEINAB; RASHIDI ALIMORAD; AMROLLAHI BIYOUKI AZADEH; MAHJOUB ALLREZA; LOTFI ROGHAYYEH; RASHTCHI MARYAM
权利人:RES INSTITUTE OF PETROLEUM INDUSTRY
摘要:The present invention relates to a method for the synthesis of nanofluids including functionalization of carbon nanostructures through a new method comprising the addition of carbon nanostructures to water; ultrasonication of the solution; addition of persulfate salt and one or several metal hydroxides of the first column of the periodic table to the aqueous solution containing carbon nanostructure; re-exposing the solution to ultrasonic waves; and then, the separation of the functionalized carbon nanostructures from the solution and washing the carbon nanostructures with water to neutralize them and mixing the nanoparticles obtained from the previous step with the fluid. By presenting a new method for the synthesis of the functionalized carbon nanostructures with specific amount of functional groups and their application in the synthesis of nanofluids, an increase in the stability and thermal conductivity of nanofluids takes place.

专利号:US-9011694-B2
优先权日:2010-09-28
标 题 :Method for the synthesis of tetravalent manganese feroxyhite for arsenic removal from water
发明人：MITRAKAS MANASSIS; SYMEONIDIS KONSTANTINOS; TRESINTSI SOFIA
权利人:MITRAKAS MANASSIS; SYMEONIDIS KONSTANTINOS; TRESINTSI SOFIA; LOUFAKIS CHEMICALS S A
摘要:The present invention refers to a method for the synthesis of an adsorbing material consisting of a single-phase tetravalent manganese feroxyhite (Å?-Fe (1-x) Mn x OOH), in which a percentage of 0.05 to 25% of iron atoms has been isomorphically substituted by Mn(IV) atoms. Its production takes place in a continuous two-stage flow reactor at weakly acidic conditions (pH 4-7) and high redox (300-800 mV). The material can be used for the removal of both pentavalent and trivalent arsenic as well as other heavy metals form water. More specifically, its adsorption capacity and selectivity depending on the trivalent and pentavalent arsenic water content, are determined by the manganese percentage and the compact or hollow morphology of its structural unit which can be both controlled by the parameters of the synthesis procedure.

专利号:US-6514432-B1
优先权日:2001-05-31
标 题:Chemical synthesis of water-soluble, chiral conducting-polymer complexes
发明人：WANG HSING-LIN; MCCARTHY PATRICK A; YANG SZE CHENG
权利人:UNIV CALIFORNIA
摘要:The template-guided synthesis of water-soluble, chiral conducting polymer complexes is described. Synthesis of water-soluble polyaniline complexes is achieved by carefully controlling the experimental parameters such as; acid concentration, ionic strength, monomer/template ratio, total reagent concentration, and order of reagent addition. Chiral (helical) polyaniline complexes can be synthesized by addition of a chiral inducing agent (chiral acid) prior to polymerization, and the polyaniline helix can be controlled by the addition of the (+) or (−) form of the chiral acid. Moreover the quantity of chiral acid and the salt content has a significant impact on the degree of chirality in the final polymer complexes. The polyaniline and the template have been found to be mixed at the molecular level which results in chiral complexes that are robust through repeated doping and dedoping cycles.

专利号:US-12410140-B2
优先权日:2020-06-19
标题:Method for synthesis of roxadustat and intermediate thereof, and intermediate thereof
发明人：ZHANG YONG; WANG GUO; YANG FEI; LIU FENGWEI; ZHOU CHUNDONG; ZHANG ZITONG
权利人:JUMPCAN SHANGHAI MEDICAL TECH CO LTD
摘要:Disclosed are a method for the synthesis of roxadustat and an intermediate thereof, and an intermediate thereof. In particular, disclosed is a method for the synthesis of compound M1, the method comprising the following steps: carrying out a reaction as shown below between compound SM and compound SM-A under the action of an oxidizing agent. The method of the present invention uses cheap and easily available raw materials, has short reaction steps, produces a high yield, has simple and convenient post-treatment procedures, and is suitable for industrial production.

专利号:US-9969823-B1
优先权日:2011-09-01
标题 :Synthesis and polymerization of vinyl triazolium ionic liquids
发明人：LUEBKE DAVID; NULWALA HUNAID; MATYJASZEWSKI KRZYSZTOF; ADZIMA BRIAN
权利人:US ENERGY; THE US DEPARTMENT OF ENERGY
摘要:Herein, we describe polymerized ionic liquids, demonstrate the synthesis of polymerized ionic liquids, and demonstrate the polymerization of triazolium monomers. One embodiment shows the polymeriazation of the triazolium monomers with bis(trifluoromethanesulfonyl)imide anions. In another embodiment we show the feasibility of copolymerizing with commodity monomers such as styrene using free radical polymerization techniques.

专利号:US-10941231-B2
优先权日:2015-10-02
标 题 :Method for the synthesis of acrylic (co)polymers from oligomers of acrylic acid
发明人：SUAU JEAN-MARC; CHAMPAGNE CLEMENTINE
权利人:ARKEMA FRANCE
摘要:The present invention relates to the synthesis of an associative acrylic (co)polymer by aqueous emulsion radical polymerization. The (co)polymer contains at least one oligomer of acrylic acid represented by the formula (I): n nwhere n is an integer ranging from 1 to 10. The oligomer is prepared from acrylic acid at a temperature of between 50° C. and 200° C. in the presence of a basic or acid catalyst, water, and polymerization inhibitors. The present invention also relates to the associative acrylic (co)polymer obtained from the method and also to the use of this (co)polymer as a thickener in various formulations.