Method for the production of glyceric acid
    31.
    发明授权
    Method for the production of glyceric acid 失效
    生产甘油酸的方法

    公开(公告)号:US06844467B2

    公开(公告)日:2005-01-18

    申请号:US10469929

    申请日:2002-03-05

    摘要: Glyceric acid compounds of the formula (I) R1R2C(OH)—CR3(OH)—COOX  (I) where R1, R2 and R3 are independently hydrogen, C1-12-alkyl, C6-12-aryl, C7-13-alkaryl or C7-13-aralkyl and X is hydrogen, an alkali metal, an alkaline earth metal/2 or NH4, are prepared by saponification of glycidic acid compounds of the formula (II) where Y is NH2 or OR4 in which R4 is C1-12-alkyl or C7-13-aralkyl, with ring-opening addition of water onto the epoxide ring. Preferably, Y is NH2 and the glycidamide of the formula (II) which is used is prepared by reacting acrylonitriles of the formula (III) R1R2C═CR3CN  (III) with hydrogen peroxide.

    摘要翻译: 式(I)的甘油酸化合物,其中R 1,R 2和R 3独立地是氢,C 1-12 - 烷基,C 6-12 - 芳基,C 7-13 - 烷芳基或C 7-13 - 芳烷基和X是氢,碱金属,碱土金属/ 2或NH 4是通过皂化式(II)的缩水甘油酸化合物制备的,其中Y是NH 2或OR 4,其中R 4是C1- 12位烷基或C 7-13芳烷基,在环氧化物环上开环加水。优选地,Y是NH 2,所用式(II)的缩水甘油酰胺是通过使式(III)的丙烯腈与式 与过氧化氢。

    Process for the copolymerization of alkylene oxides and carbon dioxide using suspensions of multi-metal cyanide compounds
    32.
    发明授权
    Process for the copolymerization of alkylene oxides and carbon dioxide using suspensions of multi-metal cyanide compounds 有权
    使用多金属氰化物化合物的悬浮液进行环氧烷和二氧化碳的共聚方法

    公开(公告)号:US06762278B2

    公开(公告)日:2004-07-13

    申请号:US10066855

    申请日:2002-02-04

    IPC分类号: C08G6434

    摘要: A method of forming a polyethercarbonate polyol using a multimetal cyanide compound is disclosed. The method includes providing a multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the weight of the multimetal cyanide compound and further including at least two of the following components: an organic complexing agent, water, a polyether, and a surface-active substance. Then an alcohol initiator is reacted with at least one alkylene oxide and carbon dioxide under a positive pressure in the presence of the multimetal cyanide compound, thereby forming the polyethercarbonate polyol.

    摘要翻译: 公开了使用多金属氰化合物形成聚醚碳酸酯多元醇的方法。 该方法包括提供具有基于多金属氰化合物的重量至少30重量%的晶体结构和片状颗粒的含量的多金属氰化合物,并且还包括以下组分中的至少两种:有机 络合剂,水,聚醚和表面活性物质。 然后在多金属氰化合物的存在下,在正压下使醇引发剂与至少一种烯化氧和二氧化碳反应,从而形成聚醚碳酸酯多元醇。

    Method for regenerating a zeolitic catalyst
    33.
    发明授权
    Method for regenerating a zeolitic catalyst 有权
    再生沸石催化剂的方法

    公开(公告)号:US06710002B2

    公开(公告)日:2004-03-23

    申请号:US10061282

    申请日:2002-02-04

    IPC分类号: B01L2990

    摘要: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

    摘要翻译: 再生沸石催化剂的方法包括以下步骤:(I)在含有少于2体积%氧气的气氛中将部分或完全失活的催化剂加热至250-600℃,(II)将催化剂处理 250至800℃,优选350至600℃,含有0.1至4体积%的供氧物质或氧气或其两种或多种的混合物的气流和 (III)在250至800℃,优选350至600℃下处理催化剂,其中气流含有超过4至100体积%的供氧物质或氧气或 其两种或更多种的混合物。

    One-step synthesis of double metal cyanides
    38.
    发明授权
    One-step synthesis of double metal cyanides 失效
    双金属氰化物的一步合成

    公开(公告)号:US06436867B1

    公开(公告)日:2002-08-20

    申请号:US09629692

    申请日:2000-08-01

    IPC分类号: B01J2726

    CPC分类号: B01J27/26 C08G65/2663

    摘要: An improved method for synthesizing a double metal cyanide (DMC) catalyst is disclosed. The method combines an aqueous solution of a first metal salt, such as ZnCl2, with an aqueous solution of a second metal salt, such as CoCl2, and with an aqueous solution of an alkali metal cyanide, such as KCN, in a single step to synthesize the DMC catalyst, Zn3[Co(CN)6]2.

    摘要翻译: 公开了一种合成双金属氰化物(DMC)催化剂的改进方法。 该方法将第一金属盐如ZnCl 2的水溶液与第二金属盐如CoCl 2的水溶液和碱金属氰化物如KCN的水溶液在一个步骤中结合, 合成DMC催化剂,Zn3 [Co(CN)6] 2。

    Multi-metal cyanide complexes as catalysts and their use in preparing polyetherpolyols
    39.
    发明授权
    Multi-metal cyanide complexes as catalysts and their use in preparing polyetherpolyols 有权
    多金属氰化物络合物作为催化剂及其在制备聚醚多元醇中的应用

    公开(公告)号:US06303833B1

    公开(公告)日:2001-10-16

    申请号:US09509515

    申请日:2000-03-29

    IPC分类号: C07C4311

    CPC分类号: B01J27/26 C08G65/2663

    摘要: A crystalline multimetal cyanide complex of the formula (I) M1a[M2(CN)bL1c]d*e(M1fXg)*hL2′iH2O  (I) where M1 is at least one element from the group consisting of Zn(II), Fe(II), Co(III), Ni(II), Mn(II), Co(II), Sn(II). Pb(II), Fe(III), Mo(IV), Mo(VI), Al(III), V(IV), V(V), Sr(II, W(IV), W(VI), Cu(II), and Cr(III), M2 is at least one element from the group consisting of Fe(II), Fe(III), Co(III), Cr(III), Mn(II), Mn(III), Ir(III), Rh(III), Ru(II), V(IV), V(V), Co(II) and Cr(II), L1 is at least one ligand from the group consisting of cyanide, carbonyl, cyanate, isocyanate, nitrile, thiocyanate and nitrosyl, X is a formate anion, an acetate anion or propionate anion, L2 is at least one water-miscible ligand from the group consisting of alcohols, aldehydes, ketones, ethers, polyethers, esters, urea derivatives, amides, nitriles and sulfides, a, b, c, d, e, f, g, h, i are integers, with a, b, c and d being chosen so that the electrical neutrality condition is satisfied, and f and g being chosen so that the electrical neutrality condition is satisfied, the X-ray diffiactogram of which shows reflections at particular d values, can be employed as catalyst.

    摘要翻译: 式(I)的结晶多金属氰化物络合物,其中M 1是由Zn(II),Fe(II),Co(III),Ni(II),Mn(II),Co(II)组成的组中的至少一种元素 ),Sn(II)。 Pb(II),Fe(III),Mo(IV),Mo(VI),Al(III),V(IV),V(V) (II),Fe(Ⅲ),Co(Ⅲ),Cr(Ⅲ),Mn(Ⅱ),Mn(Ⅲ)等元素中的至少一种元素, ,Ir(III),Rh(III),Ru(II),V(IV),V(V),Co(II)和Cr(II),L1是至少一种由氰化物,羰基 ,氰酸酯,异氰酸酯,腈,硫氰酸酯和亚硝酰基,X是甲酸根阴离子,乙酸根阴离子或丙酸根阴离子,L2是至少一种与醇,醛,酮,醚,聚醚,酯, 尿素衍生物,酰胺,腈和硫化物,a,b,c,d,e,f,g,h,i是整数,其中选择a,b,c和d,使得满足电中性条件, 被选择为使得电中性条件满足,其X射线衍射图示出特定d值的反射可用作催化剂。