利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.02 秒)

    Process for making long-chain ammonium polyphosphate
    1.
    发明授权
    Process for making long-chain ammonium polyphosphate 失效
    制造长链多磷酸铵的方法

    公开(公告)号：US4396586A

    公开(公告)日：1983-08-02

    申请号：US309902

    申请日：1981-10-09

    申请人： Alexander Maurer ,  Jurgen Stenzel ,  Gero Heymer

    发明人： Alexander Maurer ,  Jurgen Stenzel ,  Gero Heymer

    IPC分类号： C09K21/02 ,  C01B25/40 ,  C09K21/12 ,  C01B25/28

    CPC分类号： C01B25/405

    摘要： The invention relates to a process for making long chain ammonium polyphosphate consisting essentially of crystalline modification II. To this end, a mixture of phosphorus pentoxide and ammonium orthophosphate in a molar ratio of 1:0.9 to 1:1.1 is reacted with 0.1 to 15 mol % of melamine or its condensation products selected from melam, melem or mellon, calculated as melamine, at a temperature within the range 50.degree. to 150.degree. C. in the presence of an excess of ammonia and the reaction product is heat-treated at temperatures within the range 200.degree. to 400.degree. C.

    摘要翻译： 本发明涉及一种制备基本上由结晶改性II组成的长链多磷酸铵的方法。 为此，以摩尔比1:0.9至1:1.1的五氧化二磷和正磷酸铵的混合物与0.1至15mol％的三聚氰胺或其选自蜜胺，蜜胺或梅隆的缩合产物以三聚氰胺计算， 在过量氨的存在下，在50〜150℃的温度范围内，将反应产物在200〜400℃的温度范围内进行热处理。

    Process for the manufacture of finely dispersed sparingly soluble salts of oxyacids of phosphorus
    2.
    发明授权
    Process for the manufacture of finely dispersed sparingly soluble salts of oxyacids of phosphorus 失效
    用于制造磷的含氧酸的微细分散的微溶盐的方法

    公开(公告)号：US4346065A

    公开(公告)日：1982-08-24

    申请号：US222079

    申请日：1981-01-02

    申请人： Alexander Maurer ,  Renate Adrian ,  Gero Heymer

    发明人： Alexander Maurer ,  Renate Adrian ,  Gero Heymer

    IPC分类号： C01B25/16 ,  C01B25/163 ,  C01B25/26 ,  C01B25/32 ,  C01B25/34 ,  C01B25/37 ,  C01B25/42 ,  C09D5/08 ,  C01B15/16 ,  C04B11/22

    CPC分类号： C01B25/322 ,  C01B25/16 ,  C01B25/163 ,  C01B25/265 ,  C01B25/34 ,  C01B25/37 ,  C01B25/377 ,  C01B25/42 ,  C09D5/084

    摘要： The invention relates to a process for making a finely dispersed, sparingly soluble salt of an oxyacid of phosphorus, having a maximum particle size of 20 .mu.m, by reacting a compound of a divalent metal with the oxyacid of phosphorus or an alkali metal or ammonium salt thereof. More particularly, finely dispersed salt consisting to an extent of at least 90% of particles with a size between 0.05 and 7 .mu.m is made. To this end, an at least 5% by weight aqueous solution or suspension of a compound of a divalent metal selected from the group Mg, Ca, Sr, Ba, Mn, Zn, Cu, Cd, Pb, Sn, Co and Ni is reacted, while maintaining a pH range of between 3 and 9 and while stirring, with an at least 2 mol % solution of at least one trivalent metal selected from the group Al, Fe and Cr in the oxyacid of phosphorus and, optionally, with an aqueous solution of an alkali metal or ammonium salt of the oxyacid of phosphorus, and the precipitated salt is separated off and dried.

    摘要翻译： 本发明涉及通过使二价金属的化合物与磷或碱金属或铵的含氧酸反应来制造磷的含氧酸的微细分散，微溶的最大粒度为20μm的盐的方法 的盐。 更具体地说，制备了至少90％粒度在0.05和7μm之间的颗粒的程度的精细分散的盐。 为此，选自Mg，Ca，Sr，Ba，Mn，Zn，Cu，Cd，Pb，Sn，Co和Ni中的二价金属的化合物的至少5重量％的水溶液或悬浮液是 反应，同时保持pH范围在3和9之间并在搅拌的同时，使用至少2mol％的选自Al，Fe和Cr中的至少一种选自Al，Fe和Cr的三价金属的溶液在磷的含氧酸中，并且任选地与 将磷酸的含氧酸的碱金属或铵盐的水溶液分离出来并干燥。

    Process for freeing phosphoric acid from organic contaminants
    3.
    发明授权
    Process for freeing phosphoric acid from organic contaminants 失效
    从有机污染物中释放磷酸的方法

    公开(公告)号：US4279878A

    公开(公告)日：1981-07-21

    申请号：US131234

    申请日：1980-03-17

    申请人： Alexander Maurer ,  Klaus Schrodter ,  Gero Heymer

    发明人： Alexander Maurer ,  Klaus Schrodter ,  Gero Heymer

    IPC分类号： C01B25/237 ,  B01J23/00 ,  C01B25/235 ,  C01B25/16

    CPC分类号： C01B25/235

    摘要： The invention relates to a process for freeing aqueous phosphoric acid solutions from organic contaminants. To this end, the solutions are admixed and reacted with hydrogen peroxide in the presence of a catalyst consisting of a noble metal or metal oxide being inert with respect to phosphoric acid or of a mixture of said noble metal and metal oxide.

    摘要翻译： 本发明涉及从有机污染物中释放磷酸水溶液的方法。 为此，在由相对于磷酸或所述贵金属和金属氧化物的混合物呈惰性的贵金属或金属氧化物组成的催化剂存在下，将溶液混合并与过氧化氢反应。

    Process for the dearsenification of polyphosphoric acid
    4.
    发明授权
    Process for the dearsenification of polyphosphoric acid 失效
    多磷酸脱砷方法

    公开(公告)号：US4399114A

    公开(公告)日：1983-08-16

    申请号：US402941

    申请日：1982-07-29

    申请人： Alexander Maurer ,  Gero Heymer ,  Markus Erpenbach

    发明人： Alexander Maurer ,  Gero Heymer ,  Markus Erpenbach

    IPC分类号： C01B25/24 ,  C01B25/16

    CPC分类号： C01B25/24

    摘要： The disclosure relates to a process for the continuous dearsenification of polyphosphoric acid with the aid of hydrogen sulfide in a gas admission zone. To this end, the disclosure provides for the acid to be dearsenified in a gas admission zone subdivided so as to comprise at least two separate liquid matter-receiving zones, each zone being separated from the other by means of a separate gas zone; for the liquid in each of the liquid matter-receiving zones to be maintained at a level 0.1 up to 10 cm high, without admission of gas; for hydrogen sulfide which remained unreacted in the individual liquid matter-receiving zones to be collected in the respective gas zone and for it to be finely redispersed in the liquid matter-receiving zone directly upstream of the respective gas zone by allowing the hydrogen sulfide to flow through a plurality of openings into the acid, the latter being delivered from the respective liquid-matter-receiving zone into the next downstream liquid-matter-receiving zone, and introduced thereinto directly below the liquid matter level therein; for precipitated arsenic sulfide to be separated from the acid coming from the lower end of the gas admission zone, and for the filtrate obtained to be freed from gaseous hydrogen sulfide in excess.

    摘要翻译： 本公开涉及在气体入口区借助硫化氢连续脱砷多磷酸的方法。 为此，本公开内容提供了在气体进入区域中进行脱砷的酸，其被细分为包括至少两个分离的液体物质接收区域，每个区域通过单独的气体区域与另一个区域分离; 使每个液体物质接收区域中的液体保持在0.1至10厘米高的水平，而不允许气体; 对于在各个液体物质接收区中保持未反应的硫化氢，其被收集在各个气体区中，并且通过允许硫化氢流动直接在各个气体区的上游被精细地再分散在液体物质接收区中 通过多个开口进入酸，后者从相应的液体接收区输送到下一个下游液体接收区，并直接在其中引入液体物质的下方; 使沉淀的硫化砷与气体入口区的下端的酸分离，得到的过滤得到的无水硫化氢的滤液。

    Production of granular alkali metal diphosphates or triphosphates
    5.
    发明授权
    Production of granular alkali metal diphosphates or triphosphates 失效
    生产颗粒状碱金属二磷酸盐或三磷酸盐

    公开(公告)号：US4394358A

    公开(公告)日：1983-07-19

    申请号：US303100

    申请日：1981-09-17

    申请人： Alexander Maurer ,  Renate Adrian ,  Herbert Panter ,  Gero Heymer ,  Dieter Nolker

    发明人： Alexander Maurer ,  Renate Adrian ,  Herbert Panter ,  Gero Heymer ,  Dieter Nolker

    IPC分类号： C01B25/41 ,  C01B25/42 ,  C11D3/06 ,  C01B25/30

    CPC分类号： C01B25/418 ,  C01B25/425 ,  C11D3/062

    摘要： The invention relates to a process for making granulated, partially or completely hydrated alkali metal diphosphates or triphosphates. To this end, the invention provides for alkali metal diphosphates or triphosphates which consist to an extent of at least 20% of particles with a size of less than 0.045 mm and are hydrated to an extent of less than 90%, based on the phosphates' theoretical content of water of hydration, to be intensively mixed and granulated in the presence of water and an ammonium polyphosphate, this latter being used in a proportion of about 0.5 to 50 weight %, based on the quantity of water used.

    摘要翻译： 本发明涉及制备颗粒状，部分或完全水合的碱金属二磷酸盐或三磷酸盐的方法。 为此，本发明提供碱金属二磷酸盐或三磷酸盐，其碱度至少为20％，其尺寸小于0.045mm，并且基于磷酸盐的水合物水合至小于90％的程度， 在水和多磷酸铵的存在下，水合的水的理论含量将被浓缩混合和造粒，后者基于所用的水量以约0.5至50重量％的比例使用。

    Production of an anticorrosive pigment on phosphate basis
    7.
    发明授权
    Production of an anticorrosive pigment on phosphate basis 失效
    以磷酸盐为基础生产防腐颜料

    公开(公告)号：US4294621A

    公开(公告)日：1981-10-13

    申请号：US141135

    申请日：1980-04-16

    申请人： Alexander Maurer ,  Renate Adrian ,  Klaus Hestermann ,  Gero Heymer

    发明人： Alexander Maurer ,  Renate Adrian ,  Klaus Hestermann ,  Gero Heymer

    IPC分类号： C09D5/08 ,  C01B25/32 ,  C09C1/00 ,  C09C1/02 ,  C08K3/10

    CPC分类号： C01B25/322 ,  C01B25/325 ,  C09C1/02 ,  C01P2004/61 ,  C01P2006/12

    摘要： The invention relates to the production of phosphorus-containing anticorrosive pigments with a particle size of at most 20 microns by reacting one or more calcium or magnesium compounds with phosphoric acid or acid alkali metal or ammonium phosphates by intimately mixing an aqueous suspension or solution of the reactants inside a dispersing means rotating at a speed of 3000 to 10,000 rpm. More particularly, fine pulverulent calcium and magnesium compounds are converted, with agitation, together with water and, if desired, a water-soluble alkanol to a homogeneous suspension or solution. The suspension or solution is intimately mixed, inside the dispersing means at 0.degree. to 40.degree. C. and in an approximately stoichiometric ratio, with the phosphoric acid or acid phosphate solution. Resulting and precipitated pigment is separated and dried under mild conditions while maintaining its content of water of crystallization. The anticorrosive pigment is comprised of a homogeneous mixture and/or mixed crystals of which 10 to 95 mol % is calcium hydrogen phosphate dihydrate, the balance being magnesium hydrogen phosphate trihydrate. An at least 55 weight % proportion consists of particles with a size of up to 5 microns with a BET-surface of at least 1 m.sup.2 /g.

    摘要翻译： 本发明涉及通过使一种或多种钙或镁化合物与磷酸或酸性碱金属或铵磷酸盐反应，通过将下列物质的水性悬浮液或溶液紧密混合，从而生产粒径至多为20微米的含磷防腐颜料 分散装置内的反应物以3000至10,000rpm的速度旋转。 更具体地，精细的粉末状钙和镁化合物在搅拌下与水一起转化，如果需要，将水溶性链烷醇转化成均匀的悬浮液或溶液。 悬浮液或溶液在分散装置内在0℃至40℃下以大约化学计量比与磷酸或酸式磷酸盐溶液紧密混合。 将所得沉淀的颜料分离并在温和条件下干燥，同时保持其结晶水含量。 防腐颜料由均匀的混合物和/或其中10〜95摩尔％为磷酸氢钙二水合物的混合晶体组成，余量为磷酸氢二氢钙三水合物。 至少55重量％的比例由尺寸高达5微米，BET表面至少为1m 2 / g的颗粒组成。

    Process for making granulated alkali metal orthophosphates
    8.
    发明授权
    Process for making granulated alkali metal orthophosphates 失效
    制造造粒的碱金属正磷酸盐的方法

    公开(公告)号：US4385040A

    公开(公告)日：1983-05-24

    申请号：US344481

    申请日：1982-02-01

    申请人： Alexander Maurer ,  Renate Adrian

    发明人： Alexander Maurer ,  Renate Adrian

    IPC分类号： C11D3/06 ,  B01J2/28 ,  C01B25/30 ,  C05B19/00 ,  C01B15/16 ,  C01B25/26

    CPC分类号： C01B25/308

    摘要： The disclosure relates to a process for making granulated, hydrated alkali metal orthophosphates. To this end, the disclosure provides for one or more anhydrous or partially hydrated alkali metal orthophosphates presenting a degree of hydration of less than 90%, based on the theoretically possible degree of hydration, and containing an at least 20% proportion of particles with a size of less than 0.045 mm, to be intensively mixed and granulated with water and an ammonium polyphosphate.

    摘要翻译： 本公开涉及制备颗粒状，水合的碱金属正磷酸盐的方法。 为此，本发明基于理论上可能的水合度，提供一种或多种无水或部分水合的碱金属正磷酸盐，其具有小于90％的水合度，并且含有至少20％比例的颗粒与 尺寸小于0.045mm，将被浓缩混合并用水和多磷酸铵制粒。