Method of preparing porous calcium phosphate morsels and granules via gelatin processing
    3.
    发明申请
    Method of preparing porous calcium phosphate morsels and granules via gelatin processing 审中-公开
    通过明胶加工制备多孔磷酸钙微粒和颗粒的方法

    公开(公告)号:US20040076685A1

    公开(公告)日:2004-04-22

    申请号:US10617133

    申请日:2003-07-11

    申请人: Merck Patent GmbH

    发明人: Ahmet Cuneyt Tas

    摘要: The invention describes a method of preparing alpha- or beta-tricalcium phosphate, brushite (CaHPO4.2H2O), calcium pyrophosphate (Ca2P2O7) or hydroxyapatite (Ca5(PO4)3(OH)) or mixtures thereof in the form of morsels or granules via gelatin processing. These morsels or granules can be used as bone or tooth fillers or bone substitutes in applications, especially when higher rates of resorption or taking part in the bone remodelling processes of the implanted material are desired.

    摘要翻译: 本发明描述了一种制备磷酸三钙或β-磷酸三钙,钙磷酸钙(CaHPO 4·2H 2 O),焦磷酸钙(Ca2P2O7)或羟基磷灰石(Ca5(PO4)3(OH))的混合物或其混合物,其形式为颗粒或颗粒通过 明胶加工。 这些小块或颗粒可以用作骨或牙齿填充物或骨代用品,特别是当需要更高吸收率或参与植入材料的骨重塑过程时。

    PROCESS FOR UTILIZING LIQUID MANURE MATERIAL
    5.
    发明申请
    PROCESS FOR UTILIZING LIQUID MANURE MATERIAL 失效
    使用液体物料的方法

    公开(公告)号:US20010043900A1

    公开(公告)日:2001-11-22

    申请号:US09347928

    申请日:1999-07-06

    IPC分类号: C05B001/00 C01B025/26

    摘要: A process for utilizing the material of ammonium-containing effluent which contains further soluble constituents and, possible additional solids, comprising: a) optionally separating off the solids, b) concentrating the substantially solids-free ammonium-containing effluent to give an aqueous concentrate having an increased content of ammonium and additional soluble constituents, with simultaneous recovery of substantially ammonium-free pure water, c) precipitating ammonium as magnesium ammonium phosphate from the ammonium-containing aqueous concentrate, and d) separating off precipitated magnesium ammonium phosphate with recovery of substantially ammonium-free residual concentrate which at least partially contains the further soluble constituents.

    摘要翻译: 一种利用含有进一步可溶性成分的含铵流出物的材料,以及可能的附加固体,包括:a)任选分离出固体,b)浓缩基本上无固体的含铵流出物,得到含有浓缩物的含水浓缩物, 铵和附加的可溶成分的增加的含量,同时回收基本上不含铵的纯水,c)从含铵的含水浓缩物中沉淀出作为磷酸铵铵的铵,以及d)分离析出的沉淀的磷酸镁铵, 至少部分含有其他可溶性成分的无铵残余浓缩物。

    Process for upgrading raw phosphate ore
    6.
    发明申请
    Process for upgrading raw phosphate ore 失效
    磷酸盐矿石原矿改造工艺

    公开(公告)号:US20040067187A1

    公开(公告)日:2004-04-08

    申请号:US10265485

    申请日:2002-10-07

    发明人: James C. Barber

    IPC分类号: C01B025/26

    CPC分类号: C01B25/01

    摘要: Fluorapatite mineral deposits in middle Tennessee were formerly beneficiated by washing out most of the clay, but some of the clay remained in the beneficiated ore. The ore was agglomerated by heating to temperatures high enough to melt clay remaining in the ore thereby obtaining a fluid phase for agglomeration in rotary kilns. The agglomerated phosphatic material was mixed with silica rock and metallurgical coke and the mixture was smelted in electric furnaces to produce elemental phosphorus. The feedstock had a percent P O in the phosphate-plus-silica of about 25.7. Phosphate ore deposits amenable tp beneficiation by washing were used up. Furthermore, mud ponds containing the washed-out clay polluted ground water and water courses. An endeavor was made to smelt feedstock prepared from raw phosphate ore but the percent P O in the feedstock was too low for smelting. The present invention is a process for upgrading feedstock prepared from raw phosphate ore. Phosphorus sludge is burned to produce impure phosphoric acid and the acid is combined with beneficiated phosphate ore to prepare anhydrous monocalcium phosphate. Feedstock prepared from raw phosphate ore is blended with anhydrous monocalcium phosphate to upgrade the feedstock.

    摘要翻译: 以前通过洗涤大多数粘土来选择田纳西州中部的氟磷灰石矿床,但是一些粘土仍然留在精矿中。 矿石通过加热至足以熔化留在矿石中的粘土的温度而凝聚,从而获得用于回转窑中附聚的流体相。 将凝聚的磷酸盐材料与二氧化硅岩石和冶金焦混合,并将混合物在电炉中熔炼以产生元素磷。 原料在磷酸盐 - 二氧化硅中的P O百分比约为25.7。 用磷酸盐矿选择洗涤后的tp选矿用尽。 此外,含有洗出的粘土的泥池污染地下水和水道。 对原料磷酸盐矿石制备的原料进行熔炼,但原料中的P O百分比太低,无法进行冶炼。 本发明是一种用于提炼由原料磷矿石制备的原料的方法。 磷污泥被燃烧以产生不纯的磷酸,并且将酸与精选磷酸盐矿石混合以制备无水磷酸一钙。 由原磷矿石制备的原料与无水磷酸一钙混合,以提炼原料。

    Method of preparing alpha-and-beta-tricalcium phosphate powders
    7.
    发明申请
    Method of preparing alpha-and-beta-tricalcium phosphate powders 审中-公开
    制备α-磷酸三钙磷酸盐粉末的方法

    公开(公告)号:US20030235622A1

    公开(公告)日:2003-12-25

    申请号:US10465595

    申请日:2003-06-20

    申请人: Merck Patent GmbH

    发明人: Ahmet Cuneyt Tas

    CPC分类号: C01B25/324

    摘要: The invention describes a wet-chemical process for the preparation of alpha- and beta-tricalcium phosphate (TCP) powders. The procedure simply comprises immediate addition of di-ammonium hydrogen phosphate to an aqueous solution of calcium nitrate tetrahydrate, or vice versa. Calcination of the recovered precursor powders at 800null C. in air produces beta-TCP, whereas the calcination of the same at 1200null C., followed by rapid cooling to room temperature yields submicron-particulated alpha-TCP powders. These powders can be the raw materials for bioceramics, such as artificial bones, artificial joints, artificial tooth roots, and calcium phosphate-based self-setting, self-hardening cements.

    摘要翻译: 本发明描述了用于制备α-磷酸三钙和磷酸三钙(TCP)粉末的湿化学方法。 该方法简单地包括立即向二水合硝酸钙水溶液中加入磷酸氢二铵,反之亦然。 在800℃下在空气中煅烧回收的前体粉末产生β-TCP,而在1200℃下煅烧,然后迅速冷却至室温,得到亚微米级的α-TCP粉末。 这些粉末可以是生物陶瓷的原料,如人造骨,人造关节,人造牙根,磷酸钙基自固化,自硬化水泥等。

    Phosphate powder compositions and methods for forming particles with complex anions
    8.
    发明申请
    Phosphate powder compositions and methods for forming particles with complex anions 审中-公开
    磷酸盐粉末组合物和用复合阴离子形成颗粒的方法

    公开(公告)号:US20020192137A1

    公开(公告)日:2002-12-19

    申请号:US09845985

    申请日:2001-04-30

    IPC分类号: H01M004/58 C01B025/26

    摘要: Nanoscale and submicron particles have been produced with polyatomic anions. The particles can be crystalline or amorphous. The particles are synthesized in a flowing reactor, preferably with an intense light beam driving the reaction. In preferred embodiments, the particles are highly uniform. Batteries can be formed from submicron and nanoscale lithium metal phosphates. Coatings also can be formed from the particles.

    摘要翻译: 已经用多原子阴离子制备了纳米级和亚微米颗粒。 颗粒可以是结晶或无定形的。 颗粒在流动的反应器中合成,优选用驱动反应的强光束。 在优选的实施方案中,颗粒是高度均匀的。 电池可以由亚微米和纳米尺寸的锂金属磷酸盐形成。 也可以从颗粒形成涂层。

    Synthesis of aluminophosphates and silicoaluminophosphates
    9.
    发明申请
    Synthesis of aluminophosphates and silicoaluminophosphates 有权
    铝磷酸盐和硅铝磷酸盐的合成

    公开(公告)号:US20040253163A1

    公开(公告)日:2004-12-16

    申请号:US10459204

    申请日:2003-06-11

    IPC分类号: B01J027/14 C01B025/26

    摘要: The invention is directed to a method of synthesising silicoaluminophosphate and aluminophosphate molecular sieves using synthesis templates that contain at least one template of general formula R1R2NnullR3, wherein R1 and R2 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R3 is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms, and 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S. In particular, the present invention relates to the synthesis of silicoaluminophosphate molecular sieves of the CHA framework type having a low silicon to aluminium atomic ratio.

    摘要翻译: 本发明涉及使用含有至少一个通式R 1 R 2 NR 3的模板的合成模板来合成硅铝磷酸盐和磷酸铝分子筛的方法,其中R 1和R 2是 独立地选自具有1至3个碳原子的烷基和具有1至3个碳原子的羟烷基; R 3选自任选被1至3个具有1至3个碳原子的烷基取代的4至8元环烷基和具有1至3个的4-至8-元杂环基 杂原子,所述杂环基团任选被1至3个具有1至3个碳原子的烷基取代,所述杂环基中的杂原子选自O,N和S.特别地,本发明涉及 合成具有低硅铝原子比的CHA骨架类型的硅铝磷酸盐分子筛。

    Calcium phosphate cement precursors
    10.
    发明申请
    Calcium phosphate cement precursors 审中-公开
    磷酸钙水泥前体

    公开(公告)号:US20040141903A1

    公开(公告)日:2004-07-22

    申请号:US10346873

    申请日:2003-01-17

    IPC分类号: C01B025/26

    摘要: A mixture of two or more calcium phosphate compositions are combined with an aqueous solution and are useful as bone fillers on bone cements such as orthopedic and dental cements and remineralizers. The mixtures self-harden to substantially form hydroxyapatite, the mineral phase of bone and tooth enamel. The at least one or more of precursors is prepared in a manner resulting in its having an extremely low moisture level. The use of low moisture components results in an improved shelf life to the mixture.

    摘要翻译: 将两种或更多种磷酸钙组合物的混合物与水溶液组合,并且可用作骨水泥上的骨填料,例如矫形和牙科粘固剂和再矿化剂。 混合物自硬化以基本形成羟基磷灰石,骨和牙釉质的矿物相。 所述至少一种或多种前体以导致其具有非常低的水分含量的方式制备。 使用低水分组分可以改善混合物的保质期。