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    • 2. 发明授权
    • Production of 2-phenyl-ethylene phosphonic acid
    • 2-苯基 - 乙烯膦酸的制备
    • US3931294A
    • 1976-01-06
    • US481813
    • 1974-06-21
    • Theodor AuelGero HeymerHans-Werner Stephan
    • Theodor AuelGero HeymerHans-Werner Stephan
    • C07F9/38C07F9/40C07F9/42
    • C07F9/3826C07F9/42
    • Production of 2-phenyl-ethylene phosphonic acid by reacting styrene with phosphorus pentachloride in a molar ratio of about 1 : 2 in liquid phase and hydrolyzing the resulting complex 2-phenyl-ethylene phosphonic acid tetrachloride with water. The reaction is more particularly started with the use as the liquid phase of the equimolar mixture of 2-phenyl-ethylene phosphonic acid dichloride and phosphorus oxychloride obtained as an intermediary product; styrene and phosphorus pentachloride are introduced thereinto with continuous agitation; resulting complex 2-phenyl-ethylene phosphonic acid tetrachloride is partially hydrolyzed by adding a predetermined quantity of water to an equimolar mixture of 2-phenyl-ethylene phosphonic acid dichloride and phosphorus oxychloride; a portion of the resulting clear solution is continuously used as the liquid phase and phosphorus oxychloride is continuously distilled off under reduced pressure from the balance portion of the solution; remaining 2-phenyl-ethylene phosphonic acid dichloride is hydrolyzed by continuous addition of overstoichiometric proportions of water to an aqueous solution of 2-phenyl-ethylene phosphonic acid; the aqueous solution is cooled and crystalline phosphonic acid is precipitated therefrom.
    • 通过苯乙烯与五氯化磷在液相中以约1:2的摩尔比反应制备2-苯基 - 乙烯膦酸,并用水将所得的络合物2-苯基 - 乙烯膦酸四氯化物水解。 反应更特别地以作为中间产物获得的2-苯基 - 乙烯膦酸二氯化物和磷酰氯的等摩尔混合物的液相的用途开始; 连续搅拌引入苯乙烯和五氯化磷; 通过向2-苯基 - 乙烯膦酰氯和磷酰氯的等摩尔混合物中加入预定量的水,使得2-苯基 - 乙烯膦酸四氯化物的复合物部分水解; 所得澄清溶液的一部分连续地用作液相,并且在减压下从溶液的平衡部分连续蒸馏除去三氯氧磷; 剩余的2-苯基 - 乙烯膦酸二氯化物通过将过度化学计量比例的水连续加入到2-苯基 - 乙烯膦酸的水溶液中来水解; 将水溶液冷却并从其中沉淀出结晶的膦酸。
    • 3. 发明授权
    • Process for the production of crystalline alkali metal aluminum phosphate
    • 生产结晶性碱金属磷酸铝的方法
    • US4704211A
    • 1987-11-03
    • US880061
    • 1986-06-30
    • Theodor AuelHans Mueller-StarkeErwin Stoffel
    • Theodor AuelHans Mueller-StarkeErwin Stoffel
    • C01B25/45C01B25/26
    • C01B25/45
    • A process for the production of crystalline alkali metal aluminum phosphate represented by the formulaNa.sub.a K.sub.b H.sub.c Al.sub.d (PO.sub.4).sub.e.xH.sub.2 Owherein a has a value of from 0.5 to 1.5, b has a value of from 0 to 0.5, c has a value of from 12 to 16, d has a value of from 2.7 to 3.3, e has a value of from 7 to 9 and x has a value of from 3 to 6, and wherein a+b+c+3d=3e, comprises mixing phosphoric acid, sodium hydroxide or sodium carbonate and potassium hydroxide or potassium carbonate in aqueous solution with aluminum hydroxide, potassium oxide or aluminum oxide hydrate in amounts defined by the above formula, with a content of free water in solution ranging from 5 to 44%. The reaction mixture is then heated at a temperature of from 80.degree. to 200.degree. C. (if necessary, under elevated pressure) such that partial crystallization takes place. The free water is thereafter completely removed, if necessary under reduced pressure, at a temperature between about 60.degree. to 130.degree. C., and the crystallization is completed.
    • 制备由式NaaKbHcAld(PO4)e·xH2O表示的结晶性碱金属磷酸铝的方法,其中a具有0.5至1.5的值,b具有0至0.5的值,c的值为12 至16,d具有2.7至3.3的值,e具有7至9的值,x具有3至6的值,并且其中a + b + c + 3d = 3e包括将磷酸, 氢氧化钠或碳酸钠,氢氧化钾或碳酸钾在水溶液中与氢氧化铝,氧化钾或氧化铝水合物以上式定义,溶液中游离水的含量为5至44%。 然后将反应混合物在80℃至200℃的温度下加热(如果需要,在升高的压力下),使得发生部分结晶。 然后,如果需要,在约60-130℃的温度下,在减压下完全除去游离水,结晶完成。
    • 4. 发明授权
    • Process for the manufacture of 1-aminoalkane-1,1-diphosphonic acids
    • 制备1-氨基链烷-1,1-二膦酸的方法
    • US4418019A
    • 1983-11-29
    • US327888
    • 1981-12-07
    • Werner KloseTheodor Auel
    • Werner KloseTheodor Auel
    • C07F9/38C07F9/40
    • C07F9/3873
    • The invention relates to a process for making 1-aminoalkane-1,1-diphosphonic acids of the general formula (I): ##STR1## in which R stands for an aliphatic hydrocarbon radical having from 1 to 12 carbon atoms.To this end, the invention provides:(a) for tetraphosphorus hexoxide to be reacted with at least one compound of the general formula (II) ##STR2## in which R has the meaning given above and X stands for an --ONH.sub.4 or NH.sub.2 -radical, in inert gas atmosphere at elevated temperature, the molar ratio of tetraphosphorus hexoxide to the compound of general formula (II) being about 1 to 2-6; and(b) for 1-aminoalkane-1,1-diphosphonic acid to be crystallized from the reaction mixture.
    • 本发明涉及制备通式(I)的1-氨基烷烃-1,1-二膦酸的方法:其中R代表具有1至12个碳原子的脂族烃基。 为此,本发明提供:(a)与至少一种通式(II)的化合物(II)反应的四氧化二鏻,其中R具有上述含义,X代表-ONH 4 或NH 2 - 自由基,在高温下在惰性气体气氛中,六
      氧化四磷与通式(II)化合物的摩尔比为约1〜2-6; 和(b)从反应混合物中结晶的1-氨基烷烃-1,1-二膦酸。
    • 5. 发明授权
    • Xylose and xylitol separately purified in same ion exchanger
    • 在相同离子交换剂中分别纯化木糖和木糖醇
    • US4239922A
    • 1980-12-16
    • US48074
    • 1979-06-13
    • Theodor RiehmTheodor AuelWilhelm Spatz
    • Theodor RiehmTheodor AuelWilhelm Spatz
    • C07C29/132C07C27/00C07C29/141C07C29/88C07C31/18C07C67/00C13K13/00
    • C13K13/002C07C29/88C07C31/18C07B2200/07
    • A process for producing polyalcohols such as xylite from deciduous wood wherein the wood is hydrolyzed with dilute mineral acid to produce a sugar solution which is deionized and decolorized in an ion exchanger and hydrogenated to produce a polyalcohol solution which is also decolorized and deionized by ion exchange and from which pure polyalcohol is thereafter separated by crystallization, further comprising dispensing with neutralization of the acid in the sugar solution after hydrolysis, deionizing and decolorizing both the sugar solution and the polyalcohol solution in the same ion exchanger, eluting acetic acid taken up by the ion exchanger from the polyalcohol solution and displacing polyalcohol solution from the exchanger with the acid containing sugar solution, washing the ion exchanger with water only after ion exchange of the sugar solution, removing the bulk of the acetic acid from the sugar solution by evaporating the sugar solution to a higher concentration than the concentration customarily utilized for hydrogenation, and rediluting the sugar solution prior to hydrogenation with the exchanger wash water.
    • 从落叶木材生产多元醇如木yl石的方法,其中木材用稀无机酸水解,以产生在离子交换剂中去离子并脱色的糖溶液,并氢化生成也通过离子交换脱色和去离子的多元醇溶液 然后通过结晶从中分离纯多元醇,还包括在同一离子交换剂中水解,去离子和脱色糖溶液和多元醇溶液之后,在糖溶液中分配酸中和,洗脱出乙酸 离子交换剂,并用含酸的糖溶液从交换器置换多元醇溶液,仅在离子交换糖溶液后才用水洗涤离子交换剂,通过蒸发糖从糖溶液中除去大部分乙酸 溶液浓度比浓度高 通常用于氢化和在用交换器洗涤水氢化之前将糖溶液重新稀释。