SELF-HEALING MACROMOLECULAR CRYSTAL MATERIALS

    公开(公告)号:US20240286113A1

    公开(公告)日:2024-08-29

    申请号:US18655056

    申请日:2024-05-03

    Abstract: Hybrid materials are disclosed including molecular/protein crystals integrated with synthetic polymers. The disclosed materials combine the structural order and periodicity of crystals, the adaptiveness and tunable mechanical properties of polymeric networks, and the chemical versatility of protein building blocks. Some of the properties of the disclosed materials include the following: 1) allows crystals-which are typically rigid and brittle—to expand and contract reversibly; 2) incorporates polymers to increase the mechanical toughness of the crystals and allow self-healing; 3) reversibly expand/contract crystal lattices and mobilize the protein components therein may provide a new means to improve X-ray diffraction quality and explore otherwise inaccessible protein structural states using 3D protein crystallography; 4) creation of chemically and mechanically differentiated domains within single crystals. Some example embodiments combine the properties of hydrogels (flexibility, adaptability, elasticity, self-healing), crystals (structural order) and proteins (chemical and genetic tailorability).

    Methods of re-using a spent FCC Catalyst
    7.
    发明授权
    Methods of re-using a spent FCC Catalyst 有权
    重新使用废FCC催化剂的方法

    公开(公告)号:US08614159B2

    公开(公告)日:2013-12-24

    申请号:US13572957

    申请日:2012-08-13

    Abstract: A method of re-using a spent fluid catalytic cracking (FCC) catalyst, previously used in an FCC process, in an additional FCC process, where the method includes the steps of: providing FCC catalyst that has been utilized in an FCC process, defined as spent FCC catalyst, wherein the spent FCC catalyst includes both aluminum and at least one rare earth element therein; and reacting the spent FCC catalyst with an extracting agent to extract at least a portion of the at least one rare earth element from the spent FCC catalyst, while extracting no more than half of the aluminum from the spent FCC catalyst. After performing the reacting step, the reacted spent FCC catalyst can be used in an additional FCC process.

    Abstract translation: 在另外的FCC方法中重新使用先前用于FCC方法的废流化催化裂化(FCC)催化剂的方法,其中所述方法包括以下步骤:提供已经在FCC方法中使用的FCC催化剂,所述FCC催化剂定义为 作为废FCC催化剂,其中废FCC催化剂包括铝和至少一种稀土元素; 以及使用过的FCC催化剂与萃取剂反应以从废FCC催化剂中提取至少一部分所述至少一种稀土元素,同时从废FCC催化剂中提取不超过一半的铝。 在进行反应步骤后,反应后的废FCC催化剂可以用于额外的FCC方法。

    Nanoporous Silica Polyamine Composites with Surface-Bound Zirconium (IV) and Methods of Use
    10.
    发明申请
    Nanoporous Silica Polyamine Composites with Surface-Bound Zirconium (IV) and Methods of Use 审中-公开
    纳米多孔二氧化硅多胺复合材料与表面结合锆(IV)及使用方法

    公开(公告)号:US20110226699A1

    公开(公告)日:2011-09-22

    申请号:US13069238

    申请日:2011-03-22

    Abstract: Silica polyamine composites (SPC) made from silanized amorphous nano-porous silica gel and poly(allylamine) (BP-1) were functionalized with phosphorus acid using the Mannich reaction, resulting in a phosphonic acid modified composite (BPAP). Zirconium (IV) was immobilized on BPAP. Arsenate anions strongly adsorbed on the ZrBPAP composite in the pH range 2 to 8, while arsenite only adsorbed well at pH 10. Regeneration of the resin was carried out successfully for As(V) and As(III) using 2M-H2SO4. Four adsorption/desorption cycles were performed for As(V) at pH 4 without significant decrease in the uptake performance. ZrBPAP capture capacity and kinetics for arsenate were tested for longevity over 1000 cycles with only a marginal loss of performance.

    Abstract translation: 使用曼尼希反应,用硅酸官能化硅烷化无定形纳米多孔硅胶和聚(烯丙胺)(BP-1)制备的二氧化硅多胺复合材料(SPC),得到膦酸改性复合材料(BPAP)。 将锆(IV)固定在BPAP上。 砷酸盐阴离子在2〜8的pH范围内强烈地吸附在ZrBPAP复合物上,而亚砷酸盐仅在pH10下吸附良好。使用2M-H 2 SO 4对As(V)和As(III)成功地进行树脂的再生。 在pH 4下对As(V)进行四次吸附/解吸循环,而吸收性能没有显着降低。 在1000次循环中测试了对于砷酸盐的ZrBPAP捕获能力和动力学,仅具有边际性能损失。

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