公开(公告)号：US4337085A

公开(公告)日：1982-06-29

申请号：US192285

申请日：1980-09-30

申请人： Paul Cichy

发明人： Paul Cichy

IPC分类号： C22B7/00 ,  C22B11/02 ,  C22B11/00

CPC分类号： C22B11/026 ,  Y02P10/214

摘要： The invention relates to the recovery of precious metals which is accomplished by melting an alumina-containing spent catalyst having therein a minor amount of a precious metal. The melted alumina containing carrier material is heated to about 2100.degree. C. in an electric furnace. The alumina material is poured from the furnace for utilization in abrasives manufacture. The precious metal collects in the bottom of the furnace and is either poured off and allowed to solidify or allowed to solidify in the furnace. In one embodiment of the invention, the steps of melting spent catalyst and heating to form a molten mixture is repeated a multiplicity of times with pouring off of the molten carrier material. As a multiplicity of meltings and pourings are carried out, gradually there is an appreciable accumulation of the precious metals in the bottom of the furnace.

摘要翻译： 本发明涉及通过熔化其中含有少量贵金属的含氧化铝废催化剂来完成的贵金属的回收。 将熔融的含有氧化铝的载体材料在电炉中加热至约2100℃。 从炉中倒出氧化铝材料，用于制造磨料。 贵金属收集在炉底部，并将其倒出并使其固化或在炉中固化。 在本发明的一个实施方案中，将废催化剂熔化并加热以形成熔融混合物的步骤在倾倒熔融载体材料时重复多次。 随着熔融和倾倒的多次进行，贵金属逐渐积累在炉底部。

公开(公告)号：US4327186A

公开(公告)日：1982-04-27

申请号：US161726

申请日：1980-06-23

申请人： Yorihiro Murata ,  Gary W. Weber

发明人： Yorihiro Murata ,  Gary W. Weber

IPC分类号： C04B35/565 ,  C04B35/58 ,  F02B3/06 ,  C04B35/56

CPC分类号： C04B35/58071 ,  C04B35/565 ,  C04B35/632 ,  C04B2235/656 ,  F02B3/06

摘要： Sintered articles made from binary compositions of silicon carbide and titanium diboride are described. The articles may be prepared by initially mixing finely-divided silicon carbide, carbon or a carbon source material, a densification or sintering aid, and finely-divided titanium diboride, forming the mixture into a desired shape and subsequently heating at temperatures sufficiently high to form a sintered ceramic article of silicon carbide and titanium diboride. When the present sintered ceramic articles contain high amounts of titanium diboride, generally between about 65 and about 95 percent, and more preferably, between about 80 and about 95 percent, by weight, they are quite electrically conductive, generally having less than 0.2 ohm-cm electrical resistivity, and are useful as electrical ignitors. Such articles are also extremely resistant to corrosion by molten aluminum and aluminum alloys; thus, they are aptly suited to use as electrodes in aluminum refining processes. When the present sintered ceramic articles contain high amounts of silicon carbide, generally between about 50 and about 95 percent by weight, they are characterized by high densities and high strengths, typically having MOR above 50,000 psi, and an extraordinary resistance to thermal shock. Such articles are particularly useful in the fabrication of diesel engine precombustion chambers and as honeycomb structures, such as those utilized in automobile emission control units.

摘要翻译： 描述由碳化硅和二硼化钛的二元组成制成的烧结制品。 制品可以通过首先混合细碎的碳化硅，碳或碳源材料，致密化或烧结助剂和细碎的二硼化钛来制备，将混合物形成所需形状，然后在足够高的温度下加热以形成 碳化硅和二硼化钛的烧结陶瓷制品。 当本烧结陶瓷制品含有大量的二硼化钛时，通常在约65％至约95％之间，更优选约80％至约95％重量之间，它们是相当导电的，通常具有小于0.2欧姆 - cm电阻率，并且可用作电子点火器。 这种制品也极其耐受熔融铝和铝合金的腐蚀; 因此，它们适合用作铝精炼工艺中的电极。 当本烧结陶瓷制品含有大量的碳化硅（通常为约50至约95重量％）时，它们的特征在于高密度和高强度，通常具有高于50,000psi的MOR，以及非常耐热冲击性。 这样的制品在制造柴油发动机预燃室和蜂窝结构中是特别有用的，例如在汽车排放控制装置中使用的那些。

公开(公告)号：US4325998A

公开(公告)日：1982-04-20

申请号：US208372

申请日：1980-11-19

申请人： Harry S. Chapman

发明人： Harry S. Chapman

IPC分类号： B29C61/08 ,  B29C51/00 ,  B29C61/06 ,  B29C63/00 ,  B29C63/40 ,  B29C63/42 ,  B29K27/12 ,  B29L31/32 ,  C08J5/12 ,  C08J7/12 ,  D06B23/02 ,  F16C13/00 ,  B32B3/10 ,  B29C17/08 ,  B32B31/00 ,  B44C1/22

CPC分类号： B29C61/0616 ,  B29C63/42 ,  C08J7/12 ,  D06B23/02 ,  F16C13/00 ,  B29C63/00 ,  B29K2027/12 ,  B29K2083/00 ,  B29L2031/324 ,  Y10S174/08 ,  Y10S428/913 ,  Y10T428/1328 ,  Y10T428/24273 ,  Y10T428/24405

摘要： A biaxially heat shrinkable sleeve, a prism which is usually a roller having its lateral area covered with a biaxially heat shrunken sleeve and the method for covering the lateral area of a prism such as a process roller with a biaxially heat shrunken sleeve.

摘要翻译： 双轴热收缩套筒，通常是具有被双轴热收缩套筒覆盖的横向区域的辊子的棱镜以及用双轴向收缩套筒覆盖诸如加工辊的棱镜的横向区域的方法。

公开(公告)号：US4323599A

公开(公告)日：1982-04-06

申请号：US98312

申请日：1979-11-28

申请人： David W. Marshall

发明人： David W. Marshall

IPC分类号： B05D1/28 ,  B05D7/22 ,  C08G59/22 ,  C09D5/16 ,  C09D163/00

CPC分类号： C09D5/1662 ,  B05D1/286 ,  B05D7/222 ,  C08G59/226 ,  C09D163/00 ,  C09D5/1618 ,  Y10S428/907 ,  Y10T428/15 ,  Y10T428/256 ,  Y10T428/31529

摘要： Copper flake is treated to remove oxides and other contaminants from its surface and incorporated into an uncured water-insoluble polymer. When applied to a marine structure such as a boat hull, the coating exhibits outstanding anti-fouling properties. The cleaned copper flake is preferably incorporated into an uncured epoxy resin modified by reaction with a polyol. In one embodiment of the invention, the coating is applied and cured underwater using a strippable carrier.

摘要翻译： 处理铜屑以从其表面除去氧化物和其它污染物并掺入未固化的水不溶性聚合物中。 当应用于诸如船体的海洋结构时，涂层表现出优异的防污性能。 经清洁的铜薄片优选掺入通过与多元醇反应而改性的未固化的环氧树脂。 在本发明的一个实施方案中，使用可剥离的载体将涂层施加和水下固化。

公开(公告)号：US4312954A

公开(公告)日：1982-01-26

申请号：US584226

申请日：1975-06-05

申请人： John A. Coppola ,  Lawrence N. Hailey ,  Carl H. McMurtry

发明人： John A. Coppola ,  Lawrence N. Hailey ,  Carl H. McMurtry

IPC分类号： C04B35/565 ,  C04B35/56

CPC分类号： C04B35/565

摘要： Pressureless sintering of silicon carbide to produce ceramic bodies having 75% and greater theoretical densities, can be accomplished by firing shaped bodies, containing finely divided silicon carbide, boron source such as boron carbide, carbon source such as phenolic resin and a temporary binder, at a sintering temperature of from about 1900.degree. C. to about 2500.degree. C.

摘要翻译： 碳化硅的无压烧结以产生具有75％或更高理论密度的陶瓷体，可以通过将包含细碎碳化硅，硼源如碳化硼，碳源如酚醛树脂和临时粘合剂的成形体烧制在 烧结温度为约1900℃至约2500℃

公开(公告)号：US4309248A

公开(公告)日：1982-01-05

申请号：US134896

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： D01F9/08 ,  B29C67/24 ,  D04H1/42 ,  D04H1/54 ,  H01M2/14 ,  H01M2/16 ,  D21F11/00

CPC分类号： D21H13/40 ,  D21H13/36 ,  D21H5/1272 ,  D21H5/18 ,  H01M2/14

摘要： A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. A web having a combination of structural boron nitride (BN) fibers and interstitial, thermally bondable boron oxide (B.sub.2 O.sub.3) fibers is passed through the nip of a pair of cooperating calender rolls at an appropriate temperature and pressure to soften the boron oxide binder throughout the web to fuse the BN fibers together. The interstitial boron oxide then is heated in an anhydrous ammonia atmosphere to convert it into boron nitride.

摘要翻译： 公开了用于生产适合用作硫化锂电池中的电池隔板的无纺布氮化硼结合氮化硼纤维垫的方法。 具有结构氮化硼（BN）纤维和间隙，可热结合的氧化硼（B2O3）纤维的组合的纤维网在适当的温度和压力下通过一对配合的压延辊的辊隙，以使整个过程中的氧化硼粘合剂软化 将BN纤维熔合在一起。 然后将间隙氧化硼在无水氨气氛中加热，将其转化为氮化硼。

公开(公告)号：US4309245A

公开(公告)日：1982-01-05

申请号：US134903

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： D04H1/42 ,  B29C67/24 ,  D04H1/72 ,  H01M2/14 ,  D21H5/18

CPC分类号： H01M2/14 ,  D21H13/36 ,  D21H5/18

摘要： A process is disclosed for producing a non-woven boron nitride (BN) fiber felt. Boron nitride fibers are blended with a lesser amount of boron oxide fibers and a nondissolving, anhydrous liquid medium to form a homogeneous slurry. The slurry is deposited on the moving screen of a Fourdrinier machine where the liquid content is gradually reduced until sufficient fiber to fiber contact is made to provide internal cohesiveness, to form a felt. The felt may be further treated by heating it in an anhydrous gas atmosphere at a sufficient temperature to soften the boron oxide binder to fuse the BN fibers together, and then converting the interstitial boron oxide into boron nitride. The resulting boron nitride-bonded boron nitride felt may be used as an electric cell separator in a lithium sulfide battery.

摘要翻译： 公开了用于生产无纺布氮化硼（BN）纤维毡的方法。 将氮化硼纤维与较少量的氧化硼纤维和非溶解的无水液体介质共混以形成均匀的浆料。 将浆料沉积在长网机的移动筛上，其中液体含量逐渐降低，直到足够的纤维与纤维接触以提供内部粘结性以形成毡。 可以通过在足够的温度下在无水气体气氛中加热毡来进一步处理毛毡，以软化氧化硼粘合剂以将BN纤维熔合在一起，然后将间隙氧化硼转变成氮化硼。 得到的氮化硼结合氮化硼毡可以用作硫化锂电池中的电池隔膜。

公开(公告)号：US4309244A

公开(公告)日：1982-01-05

申请号：US134765

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： D01F9/08 ,  B29C67/24 ,  C04B35/583 ,  C04B35/622 ,  D04H1/42 ,  D04H1/54 ,  H01M2/14 ,  D21H5/18 ,  D21H5/26

CPC分类号： C04B35/583 ,  C04B35/62227 ,  D21H13/36 ,  D21H5/18 ,  H01M2/14

摘要： A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. Molten boron oxide is centrifugally spun into strands and attenuated by an annular gas stream into fibers which are compacted at a controlled relative humidity into a bundle and heated in an anhydrous ammonia atmosphere to convert boron oxide in the fibers to boron nitride (BN). The BN fibers are blended with a lesser amount of boron oxide fibers and a nonaqueous liquid medium to form a slurry. The slurry is processed through a Fourdrinier machine to form a felt; and, the felt is calendered by passing it through the nip of a pair of calender rolls at an appropriate temperature and pressure to soften the boron oxide binder to fuse the BN fibers together. The interstitial boron oxide then is converted to boron nitride.

摘要翻译： 公开了用于生产适合用作硫化锂电池中的电池隔板的无纺布氮化硼结合氮化硼纤维垫的方法。 将熔融的氧化硼离心旋转成股线，并通过环形气流减压成纤维，将纤维在受控的相对湿度下压成束，并在无水氨气氛中加热，将纤维中的氧化硼转化为氮化硼（BN）。 将BN纤维与较少量的氧化硼纤维和非水液体介质共混以形成浆料。 通过长网机加工浆料以形成毡; 并且通过在适当的温度和压力下将其通过一对压延辊的辊隙来使毡被压延，以软化氧化硼粘合剂以将BN纤维熔合在一起。 然后将间隙氧化硼转化为氮化硼。

公开(公告)号：US4301973A

公开(公告)日：1981-11-24

申请号：US104671

申请日：1979-12-17

申请人： Ralph W. M. Lai

发明人： Ralph W. M. Lai

IPC分类号： B03D1/008 ,  B03D1/02 ,  B03D1/14 ,  B03D1/16 ,  B02C19/00

CPC分类号： B03D1/16 ,  B03D1/008 ,  B03D1/02 ,  B03D1/1493 ,  B03D2203/04

摘要： Isostearic acid, a liquid isomer of stearic acid, is used as an agent in a froth flotation process to concentrate the iron oxide in iron ores. By use of this flotation agent, the iron oxide in the ground ore is directly floated away from the remainder of the ore. The process enables a high amount of iron oxide to be concentrated from low grade ores.

摘要翻译： 异硬脂酸是硬脂酸的液体异构体，用作泡沫浮选方法中的一种试剂，用于将铁氧化物浓缩在铁矿石中。 通过使用这种浮选剂，研磨矿石中的氧化铁直接从矿石的其余部分浮出。 该方法能够将高含量的氧化铁从低等级矿石中浓缩。

公开(公告)号：US4292160A

公开(公告)日：1981-09-29

申请号：US68145

申请日：1979-08-20

申请人： Paul J. Marcantonio

发明人： Paul J. Marcantonio

IPC分类号： C02F1/461 ,  C02F1/463 ,  C02F1/467 ,  C25B1/00 ,  C25B11/12 ,  C25B15/08

CPC分类号： C02F1/463 ,  C02F1/46114 ,  C02F1/4678 ,  C02F2101/22

摘要： A stream containing chromium and other heavy metals is fed through an electrolytic cell having a flow-through anode of lead shot and a flow-through cathode. The stream passes through the lead shot, resulting in the formation of lead chromate at the anode that falls to a trap in the bottom of the cell. Heavy metals such as copper are plated out on the material forming the flow-through cathode.

摘要翻译： 含有铬和其他重金属的物流通过具有铅射流的流通阳极和流通阴极的电解池进料。 流通过铅射流，导致在阳极处形成铬酸铅，其下降到电池底部的陷阱。 重金属如铜被镀在形成流通阴极的材料上。