CAS: 140-95-4; N,N'-Bis(Hydroxymethyl)Urea

相似化合物

141-07-1 6620-41-3 1000-82-4

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CAS号50-00-0 甲醛 | CAS号57-13-6 尿素 | CAS号13547-17-6 N,N-亚甲基二脲 | CAS号100-97-0 乌洛托品 | CAS号1000-82-4 羟甲基脲 | CAS号7732-18-5 水 | CAS号598-94-7 N,N-二甲基脲 | CAS号141-07-1 N,N’-双(甲氧基甲基)脲 | CAS号1910-89-0 5-methyl-1,3,5-... | CAS号2580-58-7 1,3,5-Triazin-2... | CAS号96-31-1 1,3-二甲基脲 | CAS号13201-92-8 Urea,N,N'-bis(e... | CAS号13329-70-9 tris(hydroxymet... | CAS号15499-91-9 1,3-bis[(carbam... | CAS号50-00-0 甲醛 | CAS号1000-82-4 羟甲基脲

尿素,聚合甲醛置于三乙醇胺体系中,用 水 用作溶剂,化学反应 1.0H,反应生成1'3-双羟甲基脲
参考文献:三种酚类化合物对木质素基pickering Hipes模板衍生的亲水性脲醛大孔泡沫的竞争性吸附†
标题:三种酚类化合物对木质素基pickering Hipes模板衍生的亲水性脲醛大孔泡沫的竞争性吸附†
摘要:亲水性脲醛大孔泡沫(ufmf)的制备方法是:简单地模板化由木质素颗粒稳定的水包油pickering高内相乳液(hipe).通过改变pickering Hipe的实验组成和聚合时间,可以轻松地调整ufmf的形态和结构.由于其多孔基体,亲水性表面和高含量的结合基团(例如羟基和羰基),因此采用制备的ufmf从水溶液中去除三种酚类化合物(pc).Ph,溶液温度,接触时间和2,4,5-三氯苯酚(2,4,5-Tcp),2,4,6-三氯苯酚(2,4,6-Tcp)和4的初始浓度的影响研究了硝基硝基苯酚(4-Np)对多pcs的吸附能力和竞争性吸附通过批处理模式实验 吸附动力学和吸附等温线分别通过拟二阶模型和langmuir模型很好地拟合.在25oc2,4,5-Tcp,2,4,6-Tcp和4-Np的最大吸附容量是116.3毫克克-1,78.74毫克克-1,29.41毫克克-1,分别与它们的吸附速率遵循2,4,5-Tcp>
Doi:10.1039/c6Ra20919J

专利信息

专利号:US-2024424490-A1
优先权日:2021-01-25
标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles
发明人：WNUK PAWEL; LEWERA ADAM; JURCZAKOWSKI RAFAL; POWALA FILIP; KOLODZIEJCZYK JAN
权利人:UNIV WARSZAWSKI
摘要:The presented invention relates to a method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles, which comprises the following steps:n adsorbing on carbon support complexes of a platinum group metal with a urea complexing agent selected from a group comprising urea, urea derivative, a mixture of urea with at least one urea derivative, and a mixture of at least two urea derivatives; and reducing the complexes adsorbed on the carbon support to metal nanoparticles, forming a product of carbon-supported metal nanoparticles. nn The invention also provides the use of the carbon-supported platinum group metal or metal alloy nanoparticles obtained by the method of the invention as catalyst. n The present invention further relates to a method of adsorption of precursors of platinum group metals on the surface of a carbon support and use of complexes of platinum group metals with urea complexing agent for adsorption of platinum group metal precursors on carbon support.

专利号:US-10280189-B2
优先权日:2012-07-17
标题:Method for the synthesis of aminoalkylenephosphonic acid
发明人：BURCK SEBASTIAN; LECLERCQ CEDRIC NICOLAS; NOTTE PATRICK
权利人:MONSANTO TECHNOLOGY LLC
摘要:A method for the synthesis of an aminoalkylenephosphonic acid or its phosphonate esters including the following steps: a) forming, in the presence of an aldehyde or ketone and an acid catalyst, a reaction mixture by mixing a compound having at least one HNR 1 R 2 moiety or a salt thereof, with a compound having one or more P—O—P anhydride moieties, the moieties having one P atom at the oxidation state (+III) and one P atom at the oxidation state (+III) or (+V), wherein the ratio of moles of aldehyde or ketone to N—H moieties is 1 or more and wherein the ratio of N—H moieties to P—O—P anhydride moieties is 0.3 or more, and b) recovering the resulting aminoalkylenephosphonic acid having compound or its phosphonate esters.

专利号:US-4209466-A
优先权日:1973-07-10
标题 :Manufacture of formaldehyde
发明人：DIEM HANS; GRABOWSKY OTTO; MATTHIAS GUENTHER; WOLF DIETER
权利人:BASF AG
摘要:Manufacture of formaldehyde by oxidative dehydrogenation of methanol in the presence of a silver catalyst using methanol obtained from a condensate derived from the evaporation of aqueous reaction mixtures in the synthesis of urea resins and then treated with caustic soda solution under specific conditions of temperature, pressure, residence time and initial formaldehyde concentration. The formaldehyde obtained is a disinfectant, tanning agent, reducing agent and starting material for the manufacture of synthetic resins, adhesives and plastics.

专利号:US-3850978-A
优先权日:1973-11-28
标 题 :Synthesis of n,n-bis(2-fluoro-2,2-dinitroethyl)carbamates
发明人：GILLIGAN W; KAMLET M
权利人:US NAVY
摘要:1. A COMPOUND OF THE FORMULA (O2N-C(-R1)(-R2)-(CH2)M)2-N-CO-Z-(CH2)N-C(-R3)(-R4)-NO2 WHEREIN R1, R2, R3 AND R4 VARY INDEPENDENTLY AND ARE SELECTED FROM THE GROUP CONSISTING OF F AND NO2, Z IS SELECTED FROM THE GROUP CONSISTING OF O AND NH, AND M AND N VARY INDEPENDENTLY AND ARE INTEGERS OF FROM 1 TO 2.

专利号:US-4547590-A
优先权日:1984-07-06
标题 :Carbon monoxide process for the production of alpha amino acids
发明人：LOVE RICHARD A; ZEHNER LEE R
权利人:GRACE W R & CO
摘要:A process is disclosed for the synthesis of alpha-amino acid by first contacting the condensation product of an aldehyde or ketone and an amine or amide with a protic or Lewis acid solvent and carbon monoxide to form an intermediate reaction product, and then hydrolyzing the intermediate to yield a product comprising the alpha-amino acid. The reaction rate and product yield can be increased by the addition of a Group 1B metal oxide catalyst in the first step.

专利号:WO-2022158990-A1
优先权日:2021-01-25
标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles