公开(公告)号：US5009878A

公开(公告)日：1991-04-23

申请号：US531412

申请日：1990-05-31

Applicant: Helmut Scharf

Inventor： Helmut Scharf

IPC: C04B35/48 ,  C01G25/02

CPC classification number: B82Y30/00 ,  C01G25/02 ,  C01P2002/60 ,  C01P2004/50 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/17 ,  Y10S423/12

Abstract: 1. Unstablized or stablized zirconium dioxide powder and processes for its preparation.2.1 The use of aqueous solutions and the isolation of precipitates are substantial disadvantages of conventional processes for the preparation of zirconium dioxide powders. Furthermore, the products often do not have the desired flow properties, compression properties and sinter properties owing to the lack of microcrystallinity.2.2 By melting zirconyl chloride optionally with a stabilizer or with a precursor of a stabilizer in the presence of a diol of the general formula HO--X--OH, in which X represents a saturated hydrocarbon radical having 2 to 5 carbon atoms, evaporating off water and hydrogen chloride, calcining the reaction product at elevated temperature in an oxygen-containing gas and optionally milling the calcined residue, an unstabilized or stabilized zirconium dioxide powder having good properties can be prepared without the use of disadvantageous process measures.2.3 The unstabilized or stabilized zirconium dioxide powder is suitable for the production of sintered articles which can be subjected to high mechanical and/or thermal stresses.

Abstract translation: 1.不稳定或稳定的二氧化锆粉末及其制备方法。 2.1使用水溶液和沉淀物的分离是制备二氧化锆粉末的常规方法的实际缺点。 此外，由于缺乏微结晶性，产品通常不具有所需的流动性能，压缩性能和烧结性质。 2.2通过在通式为HO-X-OH的二醇（其中X代表具有2-5个碳原子的饱和烃基）的存在下，任选地与稳定剂或稳定剂前体熔融氧化锆，蒸发掉水 和氯化氢，在含氧气体中在升高的温度下煅烧反应产物，并任选研磨煅烧的残余物，可以制备具有良好性能的未稳定或稳定的二氧化锆粉末，而不使用不利的工艺措施。 2.3不稳定或稳定的二氧化锆粉末适用于生产可承受较高机械和/或热应力的烧结制品。

公开(公告)号：US4867763A

公开(公告)日：1989-09-19

申请号：US228170

申请日：1988-08-04

Applicant: Helmut Scharf

Inventor： Helmut Scharf

IPC: B01D7/00 ,  B01D7/02 ,  C07C51/43 ,  C07C51/573 ,  C07D493/04

CPC classification number: C07C51/43 ,  B01D7/02 ,  C07C51/573

Abstract: Solids are fractionally desublimed in vapor form from a gas/vapor mixture by providing a nozzle through which a gas/vapor mixture containing a solid is accelerated, the nozzle being provided with a concentric opening which allows a cooling gas flowing laterally at a high velocity to impinge upon and mix with the gas/vapor mixture flowing through the nozzle in the mixing zone of the nozzle thereby forming a gas/solid mixture, passing the gas/vapor mixture through the nozzle and the cooling gas through the concentric opening such that the angle at which the cooling gas emerges from the concentric opening into the flow of the gas/vapor mixture to the direction of flow of the gas/vapor mixture ranges from 0.17 pi rad to 0.75 pi rad, the temperature of the resulting gas/solid mixture in the mixing zone being adjusted by the flow rate of the cooling gas in such a way that the temperature is below the sublimation temperature of the desired product solid but above the sublimation temperature of the by-products in the gas/vapor mixture, and allowing the gas/solid mixture to exit the nozzle in the direction of flow of the gas/vapor mixture through the nozzle.

Abstract translation: 通过提供一个喷嘴将气体/蒸汽混合物中的固体分散地蒸发成固体，其中包含固体的气体/蒸汽混合物通过喷嘴被加速，喷嘴设有同心的开口，允许冷却气体以高速度横向流动 撞击并与在喷嘴的混合区中流过喷嘴的气体/蒸汽混合物混合，从而形成气体/固体混合物，使气体/蒸汽混合物通过喷嘴和冷却气体通过同心开口，使得角度 其中冷却气体从同心开口排出到气体/蒸气混合物的流动中，气体/蒸汽混合物的流动方向为0.17pirad至0.75pirad，所得气体/固体混合物的温度 混合区域以冷却气体的流速调节，使得温度低于所需产物固体的升华温度但高于升华温度o f气体/蒸气混合物中的副产物，并允许气体/固体混合物沿气体/蒸气混合物流过喷嘴的方向离开喷嘴。

公开(公告)号：US4598157A

公开(公告)日：1986-07-01

申请号：US716924

申请日：1985-03-28

Applicant: Helmut Scharf

Inventor： Helmut Scharf

IPC: C07D493/04 ,  C07C51/265 ,  C07C63/313 ,  C07D307/91

CPC classification number: C07C51/265

Abstract: A method of separating pyromellitic acid dianhydride from the reaction gas obtained from the gas phase oxidation of 1,2,4,5-tetraalkylbenzene with an oxygen bearing gas in a closed gas circulatory system, comprising, (a) desublimating pyromellitic acid dianhydride by contacting the product gas obtained from said gas phase oxidation reaction with a cold, oxygen bearing gas, (b) catalytically burning the byproducts in the waste gas obtained from the desublimation step, and (c) recirculating a proportionate amount of the byproduct free waste gas to the oxidation reactor for the gas phase oxidation reaction.

Abstract translation: 从闭合气体循环系统中的带有氧气的气体从1,2,4,5-四烷基苯的气相氧化得到的反应气体中分离均苯四酸二酐的方法，包括：（a）通过接触将苯均苯二酸二酐， 从所述气相氧化反应中获得的产物气体具有冷的含氧气体，（b）催化燃烧从所述制冷步骤获得的废气中的副产物，和（c）将相应量的无副产物废气再循环到 用于气相氧化反应的氧化反应器。

公开(公告)号：US4773923A

公开(公告)日：1988-09-27

申请号：US13184

申请日：1987-02-09

Applicant: Helmut Scharf

Inventor： Helmut Scharf

IPC: B01D7/02 ,  F25J5/00

CPC classification number: B01D7/02 ,  Y10S62/91

Abstract: For the non-clogging, fractional desublimation of vapor-phase solids contained in a gas-vapor mixture, the gas-vapor mixture, exiting at high velocity from a nozzle, is mixed with a cooling gas, likewise exiting at high velocity from another nozzle. The gas-vapor mixture and the cooling gas flow toward each other, the axes of the two gaseous streams being a straight line. Fractional desublimation of the solids is attained by adjustment of flows leading to the regulation of the temperature and residence time of the cooled gas-vapor mixture. This desublimation system is capable of degrees of efficiency and solids purities higher than 99%.

Abstract translation: 对于非阻塞，包含在气体 - 蒸汽混合物中的气相固体的分级抽出，从喷嘴以高速离开的气体 - 蒸气混合物与冷却气体混合，同样从高速度从另一个喷嘴 。 气体 - 蒸气混合物和冷却气体朝向彼此流动，两个气流的轴线是直线。 通过调节导致调节冷却的气体 - 蒸气混合物的温度和停留时间的流量来获得固体的分数分布。 这种desublimation系统的效率和固体纯度达99％以上。

公开(公告)号：US4085240A

公开(公告)日：1978-04-18

申请号：US717461

申请日：1976-08-24

Applicant: Helmut Scharf

Inventor： Helmut Scharf

IPC: B05D7/02 ,  B29C55/00 ,  B29C65/00 ,  C08J5/12 ,  C08J7/12 ,  B05D1/36

CPC classification number: C08J7/12 ,  C08J2323/16

Abstract: A process for improving the adhesion of isocyanate-crosslinked polyester coatings on vulcanized articles of ethylene-.alpha.-olefin-diene terpolymers, characterized in that the vulcanized articles, which contain at least 30 parts by weight of carbon black per 100 parts by weight of the ethylene-.alpha.-olefin-diene terpolymer, are treated with a compound having a functional group reactive with isocyanates and a carbon structure with at least 4 carbon atoms.

Abstract translation: 一种用于改善异氰酸酯交联的聚酯涂层对乙烯-α-烯烃 - 二烯三元共聚物硫化制品的粘合性的方法，其特征在于硫化制品，其含有至少30重量份的炭黑/ 100重量份 乙烯-α-烯烃 - 二烯三元共聚物用具有与异氰酸酯反应的官能团的化合物和具有至少4个碳原子的碳结构进行处理。

公开(公告)号：US4681046A

公开(公告)日：1987-07-21

申请号：US873549

申请日：1986-06-12

Applicant: Helmut Scharf ,  Wilfried Krix

Inventor： Helmut Scharf ,  Wilfried Krix

IPC: C01B3/32 ,  C07C51/573 ,  C07D307/60 ,  C07D307/89 ,  C10J3/00 ,  F23G5/02

CPC classification number: C07C51/573

Abstract: A method for utilizing distillation residues of phthalic anhydride or maleic anhydride, which comprises: (a) cooling hot, liquid distillation residues of said phthalic anhydride or maleic anhydride while flowing as a stream in a first organic liquid; (b) comminuting said distillation residues solidifying in said first organic liquid by means of a cutting edge rotating at high rpm to produce a granulate; (c) suspending said granulate in a second organic liquid; and (d) incinerating the suspension or converting the suspension into synthesis gas.

Abstract translation: 一种利用邻苯二甲酸酐或马来酸酐的蒸馏残余物的方法，该方法包括：（a）冷却所述邻苯二甲酸酐或马来酸酐的热液体蒸馏残余物，同时以第一有机液体中的物流流动; （b）通过以高转速旋转的切削刃粉碎在所述第一有机液体中固化的所述蒸馏残渣以产生颗粒; （c）将所述颗粒悬浮在第二有机液体中; 和（d）焚化悬浮液或将悬浮液转化为合成气。

公开(公告)号：US4250119A

公开(公告)日：1981-02-10

申请号：US931665

申请日：1978-08-07

Applicant: Helmut Scharf ,  Gerhard Franz ,  HoGunther

Inventor： Helmut Scharf ,  Gerhard Franz ,  HoGunther

IPC: C07C49/08 ,  B01J23/00 ,  B01J23/06 ,  B01J23/80 ,  C07B61/00 ,  C07C45/00 ,  C07C45/33 ,  C07C67/00 ,  C07C45/32

CPC classification number: B01J23/80 ,  B01J23/06 ,  C07C45/33

Abstract: Isobutyraldehyde is produced by the oxo process and converted to acetone in the gas phase by oxidative decarbonylation on a zinc oxide supported copper oxide catalyst. The conversion is improved by adding about 2.5 to 25 percent by weight graphite to the catalyst, based on the total weight of catalyst.

Abstract translation: 异丁醛通过氧代工艺生产，并在氧相氧化催化剂上通过氧化脱羰作用在气相中转化为丙酮。 基于催化剂的总重量，通过向催化剂中加入约2.5至25重量％的石墨来改善转化率。

公开(公告)号：US4200589A

公开(公告)日：1980-04-29

申请号：US973579

申请日：1978-12-27

Applicant: Helmut Scharf

Inventor： Helmut Scharf

IPC: C07C49/08 ,  B01J23/00 ,  C07C45/00 ,  C07C45/33 ,  C07C67/00

CPC classification number: C07C45/33

Abstract: This is an improvement in the process for preparing acetone by the catalytic, oxidative decarbonylation of isobutyraldehyde in the gaseous phase by passing a mixture consisting of isobutyraldehyde, oxygen and an inert diluent, when desired, at higher temperatures and at contact-times from 0.1 to 10 seconds over a carrier catalyst where the novel catalyst contains a mixture of copper oxide or manganese oxide, or a mixture thereof, with zinc oxide.A mixture comprising about 1 to 4.5 vol. % of isobutyraldehyde, about 1.2 to 99 vol. % of oxygen and an inert diluent, when desired, is passed over a catalyst at a temperature of about 130.degree. to 180.degree. C., consisting of about 0.1 to 6% by weight of Cu or Mn, or a mixture thereof, in the form of their oxides and of about 1 to 10% by weight of Zn in the form of zinc oxide on aluminum oxide as the carrier.

Abstract translation: 这是通过在气相中通过异丁醛，氧气和惰性稀释剂组成的混合物在较高温度和接触时间从0.1至 其中新催化剂含有氧化铜或氧化锰或其混合物与氧化锌的混合物的载体催化剂上10秒钟。 包含约1至4.5体积％ ％的异丁醛，约1.2至99体积％ 当需要时，氧气和惰性稀释剂的百分比在约130-180℃的温度下通过催化剂，由约0.1至6重量％的Cu或Mn或其混合物，在 形式的氧化物和约1至10重量％的氧化锌形式的氧化锌作为载体的Zn。