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 |
|---|---|---|---|---|---|---|
| 221 | Method for the preparation of carbon moldings and activated carbon moulding therefrom | US668202 | 1976-03-18 | USRE29101E | 1977-01-04 | Yasuo Amagi; Yasushi Nishimura; Yasuo Uehara |
| A method for the preparation of a porous carbon molding having a low apparent density, the method comprising the steps of thermally mixing a pitch, which has a softening point of 50.degree. - 350.degree. C, a carbon content of 80 - 97 wt%, a hydrogen/carbon ratio of 0.3-2.5 and a nitrobenzene-insoluble fraction of below 60 wt%, with at least one aromatic hydrocarbon having a boiling point of 200.degree. C or higher, forming the mixture into a suitable shape, immersing the formed material in a solvent, in which the pitch is hardly soluble but the aromatic hydrocarbon is easily soluble, for extracting the aromatic hydrocarbon from the formed material and obtaining a porous pitch material, oxidizing the porous pitch material at a temperature from room temperature to 400.degree. C by the use of an oxidizing agent to form an infusible porous pitch material, and calcining the infusible porous material in an inert atmosphere at a temperature higher than 600.degree. C to obtain a porous carbon material. The porous carbon material or the infusible porous material may be activated by means of steam vapor or air to produce an activated carbon material. | ||||||
| 222 | Process for manufacturing carrier sheets treated with hardenable aminoplast resin preliminary condensates for surface coating | US39554973 | 1973-09-10 | US3888728A | 1975-06-10 | PETRIK BRUNO; RUF ERICH |
| This invention relates to an improvement in the process of making a carrier sheet by saturating said sheet with an aqueous solution of at least one hardenable aminoplast resin preliminary condensate, the improvement comprising including in said saturating solution about 0.05 to 3 percent by weight, based upon solid resin, of a compound selected from the group consisting of an ethylene glycol fatty acid ester and a propylene glycol fatty acid ester. The invention also includes novel carrier sheets produced by the novel process.
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| 223 | Process for treating by-product oils produced in the production of olefins | US3794579D | 1972-12-29 | US3794579A | 1974-02-26 | ENOMOTO S; TAKAHASHI M |
| THERMALLY STABILIZED OIL FRACTIONS AND PITCH FRACTIONS ARE OBTAINED FROM BY-PRODUCT OILS IN THE PRODUCTION OF OLEFINS WHICH COMPRISES HEATING THE BY-PRODUCT OILS AT 400-600*C. FOR 10-1200 SECONDS UNDER A PRESSURE OF 20-2000 KG./CM2 TO FORM THERMALLY STABILIZED OIL FRACTIONS AND RESIDUE FRACTIONS AND THEN TREATING THE RESIDUE FRACTIONS AT 300-480*C., UNDER A PRESSURE OF FROM NORMAL PRESSURE TO 50 KG./CM.2 FOR 1-10 HOURS TO PROVIDE USEFUL PITCH FRACTIONS.
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| 224 | Method for producing bituminous substance such as a coal tar pitch | US3775289D | 1971-11-05 | US3775289A | 1973-11-27 | KISHI C; TATSUTA M; NAGO M; KIBUISHI K; HATAKEYAMA Y; MIYAKAWA K |
| A method for producing bituminous substance such as coal tar pitch which comprises adding sulfuric acid to coal tar produced by a high temperature dry distillation of coal and a bituminous substance produced from the coal tar, then adding petroleum heavy oil to the mixture to precipitate and separate pitch component.
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| 225 | Process for production of gilsonite-like bituminous material | US3661765D | 1970-07-30 | US3661765A | 1972-05-09 | TOYOGUCHI MITSURU; IIJIMA HIROSHI |
| A PROCESS FOR THE PRODUCTION OF A GILSONITE-LIKE BITUMINOUS MATERIAL HAVING A PENETRATION OF 0 TO 1 AND A SOFTENING POINT OF 130*C. TO 180*C. WHICH COMPRISES SOLVENT EXTRACTING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STRAIGHT ASPHALT AND THE VACUUM DISTILLATION RESIDUE OBTAINED IN THE PRODUCTION OF LUBRICATING OILS TO OBTAIN A MATERIAL HAVING A PENETRATION OF 2 TO 30, AND THEN AIR BLOWING SAID MATERIAL HAVING A PENETRATION OF 2 TO 30 AT A TEMPERATURE OF 200* TO 300*C.
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| 226 | Separation of asphaltenes and conversion of black oils | US3607724D | 1969-12-17 | US3607724A | 1971-09-21 | ROGERS EDWARD S; HORVATH EDWARD |
| Removal of asphaltenes from a hydrocarbonaceous black oil is effected through the use of a foam chamber and a foam breaker. In one application, the asphaltene-free material is thermally cracked and the heavier portion of the cracked effluent is recycled to combine with the fresh feed. The foam is created through the use of high-pressure hydrogen, being intimately admixed with the black oil, followed by depressuring into a foam chamber.
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| 227 | High-purity synthetic pitch | US3574653D | 1966-07-26 | US3574653A | 1971-04-13 | EDSTROM THEODORE; LEWIS IRWIN C; MITCHELL CHARLES V |
| A SYNTHETIC PITCH HAVING A SOFTENING POINT IN THE RANGE FROM ABOUT 50*C. TO ABOUT 250*C. AND COMPRISING ACENAPHTHENE AND COMPLEX AROMATIZED PYROLYSIS PRODUCTS OF ACENAPHTHYLENE POLYMERS IS PRODUCED BY HEATING ACENAPHTHYLENE TO FORM A SOLID POLYMERIC MIXTURE, AND THEN FURTHER HEATING THE SOLID MIXTURE SO PRODUCED TO CAUSE IT TO LIWUEFY AND REFLUX TO PRODUCE SAID PITCH BY PYROLYSIS OF THE POLYMERS.
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| 228 | Asphalt shearing process | US3511769D | 1969-05-15 | US3511769A | 1970-05-12 | CORBETT LUKE W; CLARKE GEORGE A JR |
| 229 | Methods for improvement of asphalts | US51269865 | 1965-12-09 | US3344056A | 1967-09-26 | ROSTLER FRITZ S |
| 230 | Radiation of asphalts | US68325057 | 1957-09-11 | US3006831A | 1961-10-31 | ILLMAN JOHN C |
| 231 | Pigment peptizing agent and process | US23426551 | 1951-06-29 | US2730453A | 1956-01-10 | JORDAN MERRILL E; COLE HARVEY M |
| 232 | Light-colored asphalt | US5691135 | 1935-12-31 | US2195536A | 1940-04-02 | LAUGHLIN KENNETH C; CIER HARRY E |
| 233 | Process for treating soda asphalt | US6035236 | 1936-01-22 | US2189379A | 1940-02-06 | SAMUEL KON; MICHEL TOURNADRE |
| 234 | Process of refining oil | US7286836 | 1936-04-06 | US2139161A | 1938-12-06 | HOWARD HUTCHINS GEORGE; HARTIGAN ARTHUR W |
| 235 | Method of modifying properties of asphalts | US1476035 | 1935-04-05 | US2131205A | 1938-09-27 | WELLS ALFRED A; COLLINS JOHN O |
| 236 | Method of treating mineral oil residues | US65316933 | 1933-01-23 | US2026073A | 1935-12-31 | THEODOOR SWERISSEN HERMAN |
| 237 | Method and apparatus fob dehy | US2018377D | US2018377A | 1935-10-22 | ||
| 238 | Petroleum plastic | US55934931 | 1931-08-25 | US1989045A | 1935-01-22 | MERRILL DAVID R |
| 239 | Treatment of hydrocarbon oils | US58035331 | 1931-12-11 | US1972936A | 1934-09-11 | BENJAMIN HEID JACOB |
| 240 | Process for the treatment of coal-tar. | US1910572636 | 1910-07-18 | US1148011A | 1915-07-27 | DAVIES GEORGE LLEWELLYN; RICHARDS WALTER EDWIN WINDSOR |
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