子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Mesophase pitch using steam cracker tar (CF-6) | US273200 | 1981-06-12 | US4414095A | 1983-11-08 | Ghazi Dickakian |
| A feedstock for carbon artifact manufacture is obtained from a steam cracker tar by heat soaking the steam cracker tar or a vacuum stripped steam cracker tar with a polycondensed aromatic oil thereby providing a pitch suitable for carbon artifact manufacture. | ||||||
| 102 | Starting pitches for carbon fibers | US366917 | 1982-04-09 | US4397830A | 1983-08-09 | Seiichi Uemura; Shunichi Yamamoto; Takao Hirose; Hiroaki Takashima; Osami Kato |
| A starting pitch for carbon fibers, obtained by (A) mixing (1) a heavy fraction oil boiling at not lower than 200.degree. C. obtained at the time of steam cracking of petroleum with (2) a hydrogenated oil selected from aromatic hydrocarbons of 2-10 rings in which the nuclei have been hydrogenated and specific fractions boiling at 160.degree.-650.degree. C. and containing such nuclei-hydrogenated hydrocarbons and then (B) heat treating the resulting mixed oil at 370.degree.-480.degree. C. and 2-50 Kg/cm.sup.2.G to obtain the starting pitch for carbon fibers. | ||||||
| 103 | Continuous process for industrially producing mesocarbon microbeads | US222901 | 1981-01-05 | US4363670A | 1982-12-14 | Kosaku Noguchi; Honami Tanaka; Yukimasa Kumura; Eiji Kitajima; Noriyuki Tsuchiya; Tomonori Sunada |
| Mesocarbon microbeads are continuously produced by the steps of: (1) mixing a matrix pitch, mesophase microspheres, and a solvent in which the pitch will dissolve but the microspheres will not, thereby to prepare a liquid mixture of a solution and dispersion; (2) processing the mixture in at least two stages of liquid cyclones, thereby to separate it into light and medium-weight liquids and a heavy liquid containing most of the microspheres; and (3) evaporating off the solvent from the heavy liquid thus obtained, thereby to obtain the microspheres as mesocarbon microbeads. The solvent is evaporated off from the light liquid to recover the pitch, and the medium-weight liquid is recycled to step (1) and (2). | ||||||
| 104 | Process for the production of high grade carbonaceous binders | US291889 | 1981-08-11 | US4339328A | 1982-07-13 | Jurgen Stadelhofer; Heinz-Gerhard Franck; Helmut Kohler; Heinrich Louis |
| A process is described for the production of high grade carbonaceous binders, wherein an aromatic high grade carbonaceous material is produced from 5-40% by weight of reduced or low ash coal or similar carbon containing raw materials by treatment with 20-80% by weight of high-boiling aromatic solvents, derived from coal, and 15-50% by weight of high-boiling aromatic solvents, derived from mineral oil, at temperatures of 300.degree.-420.degree. C. and for a reaction period of 1-4 hours, at a reaction pressure of up to 50 bar, and is optionally freed from low-boiling components. | ||||||
| 105 | Method for the production of needle coke | US179281 | 1980-08-18 | US4333816A | 1982-06-08 | Georg Kolling; Ingo Romey; Hellmut Kokot |
| Coal tar pitch is liquified at temperature of from about 135.degree. C. to 280.degree. C. The liquid coal tar pitch is filtered through a sieve with apertures from about 100 to 220 .mu.m and with a closed surface area of at least 75 percent of the total sieve surface under pressures of from about 2 to 10 bar until a filter cake of a height of from about 40 to 80 mm forms above the sieve for separating ash, soot and quinoline insoluble particles from the liquid. Then the filtrate obtained is subjected to a coking process.The needle cokes resulting in accordance with the invention provide excellent materials for the production of graphite electrodes. | ||||||
| 106 | Process for producing carbon fibers from heat treated pitch | US123933 | 1980-02-25 | US4331620A | 1982-05-25 | Russell J. Diefendorf; Dennis M. Riggs |
| Heat treated pitches, especially pitches containing either isotropic or anisotropic phases as well as mixtures thereof, are spun by subjecting the pitch at spinning temperatures to shearing forces while simultaneously spinning the pitch. | ||||||
| 107 | Process for the production of a petroleum pitch or coke of a high purity | US150431 | 1980-05-16 | US4312742A | 1982-01-26 | Kiyoshige Hayashi |
| A petroleum pitch or coke of a high purity is produced from a petroleum heavy residue such as distillation and cracked residua, asphalt and pitch by such treatment of the residue prior to a conventional pitching or coking treatment that the residue is treated with hydrogen in the absence of a catalyst under a hydrogen pressure of 20.about.200 Kg/cm.sup.2 under a gradual heating up to a final temperature of 350.degree..about.400.degree. C. so as to heat the residue from 150.degree. C. to 300.degree. C. over 30 to 120 minutes and then from 300.degree. C. to the final temperature over 10 to 60 minutes. The non-catalytic hydrogen treatment is called "hydrogenation refining step", which gives a refined pitching/coking feedstock from which a petroleum pitch or coke of extra high purity is derived. | ||||||
| 108 | Process for preparation of pitch for producing carbon fiber | US49890 | 1979-06-19 | US4243512A | 1981-01-06 | Ikuo Seo |
| A process for preparing a pitch for carbon fiber by filtering a heavy pitch having a softening point of 150.degree.-200.degree. C. at a temperature of 250.degree.-300.degree. C. and further treating at the same temperature under reduced pressure. | ||||||
| 109 | Preparation of petroleum pitch | US556856 | 1975-03-10 | US4039423A | 1977-08-02 | Maurice Moyle; Buenaventura B. Galvez; Eric C. Pease; Alan Logan |
| A process having a particular sequence of steps, each under specified conditions, for preparing a petroleum pitch binder suitable for electrodes used in smelting aluminum is disclosed. In the essential steps of the invention a decant oil petroleum fraction is heat treated under pressure, the treated material is flashed to a lower pressure, and finally the material is oxy-activated under elevated temperature conditions to form a petroleum pitch having the desired properties. | ||||||
| 110 | Process for hydrofining bitumen derived from tar sands | US3480540D | 1967-03-16 | US3480540A | 1969-11-25 | ENG JACKSON; GUGGISBERG WILLIAM R |
| 111 | Electrode pitch binders | US4529560 | 1960-07-26 | US3173851A | 1965-03-16 | KING LAURENCE F; STEELE CLELLIE T |
| 112 | Process for preparing binder pitches | US17788962 | 1962-03-06 | US3140248A | 1964-07-07 | BELL JAMES F; FOLDA JR BERT; TRIMBLE ROBERT A |
| 113 | Method for recovering gilsonite from gilsonite-water mixtures | US63069756 | 1956-12-26 | US2920029A | 1960-01-05 | ELLIOTT LAVERNE P; ROSSI WILLIAM J |
| 114 | Method for recovering asphaltic materials from aqueous mixtures | US60104756 | 1956-07-30 | US2919239A | 1959-12-29 | MILTON LUDWIG |
| 115 | Insulating and coskgsion protective | US2903409D | US2903409A | 1959-09-08 | ||
| 116 | Process for improving properties of asphalts | US58417056 | 1956-05-11 | US2889261A | 1959-06-02 | PITCHFORD ARMIN C |
| 117 | Method for recovering asphaltic products from mixtures thereof with water | US61130456 | 1956-09-21 | US2879222A | 1959-03-24 | GROSSBERG ARNOLD L |
| 118 | Preparation of asphaltic material | US29292352 | 1952-06-11 | US2738312A | 1956-03-13 | HARDMAN HARLEY F |
| 119 | Process for treating bituminous substances | US26586339 | 1939-04-03 | US2348832A | 1944-05-16 | KARL MAUCH; OTHMAR PAUER |
| 120 | Manufacture of paints | US58337822 | 1922-08-21 | US1558082A | 1925-10-20 | DANIEL GARDNER |
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