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 |
|---|---|---|---|---|---|---|
| 181 | How to convert aromatic hydrocarbons using a carbon monoxide | JP23062087 | 1987-09-14 | JPH0615479B2 | 1994-03-02 | SAKAKURA TOSHASU; TANAKA MASATO |
| 182 | Production of dimethylnaphthalene | JP3282892 | 1992-01-24 | JPH05201888A | 1993-08-10 | UTAKA WATARU |
| PURPOSE: To obtain the subject new method for producing dimethylnaphthalene including 2,6- and 2,7-dimethylnaphthalenes by using coal tar prepared according to the rapid pyrolysis of coal as a crude raw material. CONSTITUTION: Coal is rapidly pyrolyzed in a pneumatic bed pyrolytic process. In the process, the pyrolytic temperature in a reactional furnace is kept at ≤750°C, preferably 600-650°C and the residence time of the pyrolytic product in the reactional furnace is regulated to ≤5sec. Thereby, a liquid product having many side chains, a low degree of condensation and hardly any aromaticity is obtained, separated and purified to produce dimethylnaphthalene. Coal tar prepared in a large amount at a low cost by the rapid pyrolysis of the coal in the pneumatic bed pyrolytic process can be used a crude raw material to provide 2,6- and 2,7-dimethylnaphthalenes to be a starting raw material for producing polyethylene naphthalate, polybutylene naphthalate, etc., which are highly functional resins and low-cost type liquid crystal polymers, etc., at an economical cost. COPYRIGHT: (C)1993,JPO&Japio | ||||||
| 183 | JPH055815B2 - | JP24772087 | 1987-09-30 | JPH055815B2 | 1993-01-25 | SAKAKURA TOSHASU; TANAKA MASATO |
| 184 | JPH0466217B2 - | JP14659484 | 1984-07-14 | JPH0466217B2 | 1992-10-22 | SHIMIZU ISOO; HIRANO RYOTARO; MATSUMURA YASUO; NOMURA HIDEKI; UCHIDA KAZUMICHI; SATO ATSUSHI |
| 185 | JPH0430934B2 - | JP14659384 | 1984-07-14 | JPH0430934B2 | 1992-05-25 | |
| 186 | JPH021810B2 - | JP18201682 | 1982-10-16 | JPH021810B2 | 1990-01-12 | HOORU II KOTSUPERU; JOZEFU JEI UIRIAMUZU; HAAMAN ENU UOOBUKE |
| 187 | Production of alkylstyrene | JP18300187 | 1987-07-22 | JPS6426524A | 1989-01-27 | SHIMIZU ISOO; TOKUMOTO YUICHI |
| PURPOSE:To obtain the titled substance, by reacting a monoalkylbenzene having an alkyl side chain with a specific number of more of carbon atoms with acetaldehyde in the presence of an HF catalyst and catalytically decomposing the resultant 1,1-bis(p-alkylphenyl)ethane. CONSTITUTION:A monoalkylbenzene having a >=3C alkyl side chain (e.g. isobutylbenzene) is reacted with acetaldehyde at 2-50:1 molar ratio in the presence of an HF catalyst (at 1.7-300 molar ratio to the acetaldehyde) at <=40 deg.C to provide a 1,1-bis(p-alkylphenyl)ethane (A), which is then catalytically decomposed in the presence of an acid catalyst at 200-650 deg.C to afford the aimed alkylstyrene (e.g. p-isobutylstyrene). Since the compound (A) which is an intermediate can be produced at a low cost to readily recover and reuse Hf by distillation, catalyst cost is low and p-regioselectivity of the compound (A) is excellent. | ||||||
| 188 | JPS6247854B2 - | JP3555877 | 1977-03-31 | JPS6247854B2 | 1987-10-09 | CHU CHIN-CHIUN; HAAG WERNER OTTO; OLSON DAVID HAROLD; RODEWALD PAUL GERHARD |
| 189 | P-isobutylstyrene | JP14659384 | 1984-07-14 | JPS6124527A | 1986-02-03 | SHIMIZU ISOO; HIRANO RYOTARO; MATSUMURA YASUO; NOMURA HIDEKI; UCHIDA KAZUMICHI; SATO ATSUSHI |
| PURPOSE: To obtain the titled compound advantageously through a novel intermediate from isobutyl benzene and acetaldehyde, by conducting two-step reaction using a sulfuric acid catalyst and then a protonic acid catalyst, etc. at a specific temperature, accompanied with recycling the starting raw material produced. CONSTITUTION: (i) A compound [isobutylbenzene (IBB)] expressed by formula I is reacted with acetaldehyde in the presence of sulfuric acid catalyst of ≥75wt%, preferably 80W95wt% sulfuric acid concentration at ≤40°C, preferably -20W 20°C under stirring to obtain the novel substance [1,1-bis(p-isobulylphenyl)ethane (BBE)] expressed by formula I. (ii) The resultant substance is reacted at 200W 650°C, preferably 300W650°C especially preferably 350W500°C in the presence of a protonic acid and/or solid acid catalysts to obtain the aimed compound [p-isobutylstyrene (PBS)] expressed by formula III and IBB. The IBB is returned to the process (i) for reuse, and the PBS useful as an intermediate for medicine, etc. is obtained effectively in good yield from inexpensive raw materials through the simple and easily handleable intermediates. COPYRIGHT: (C)1986,JPO&Japio | ||||||
| 190 | Crystalline aluminosilicate zeolite composition | JP598985 | 1985-01-18 | JPS60186414A | 1985-09-21 | CHU CHIN-CHIUN; HAAG WERNER OTTO; OLSON DAVID HAROLD; RODEWALD PAUL GERHARD |
| 191 | JPS5929636B2 - | JP15392575 | 1975-12-23 | JPS5929636B2 | 1984-07-21 | MACHLEDER W H; BOLLINGER J M |
| 192 | Manufacture of methane by hydrogenolysis of hydrocarbon fraction | JP4369282 | 1982-03-17 | JPS57167927A | 1982-10-16 | BERUNAARU JIYUGAN; JIERUMAN MARUTEINO; JIYAN MIKERU |
| 193 | Reclamation of plastic | JP17827880 | 1980-12-16 | JPS57102823A | 1982-06-26 | ISAGAWA MITSUO; MOTOYAMA AKIRA |
| PURPOSE:To reuse industrial waste plastics as an energy source or a raw material of plastics, and to save the resources, by decomposing plastics in an inert gas with electrical arc, and recovering as gaseous product. CONSTITUTION:Waste plastics 5, 8 are put into the vessel 1 filled with inert gas such as He, N2, etc. introduced through the inlet 2, and arc discharge is generated between the electrodes 3 and 4 or 9 and 10. The plastics are exposed to the high temperature generated by the arc 6, and decomposed in the inert gas to produce heat decomposition gas such as acetylene, etc. The decomposition gas is recovered together with the inert gas, and the active gas such as acetylene is separated and recovered as a raw material of synthetic rubbers, synthetic resin, or synthetic fibers, or as fuel for illumination, or welding and cutting of metals, generation of high temperature, etc. The electrical voltage and current for the generation of arc are higher the better. | ||||||
| 194 | JPS5641605B2 - | JP12865073 | 1973-11-15 | JPS5641605B2 | 1981-09-29 | |
| 195 | Manufacture of methaneecontaining gas | JP15833880 | 1980-11-12 | JPS5682888A | 1981-07-06 | BUARUTAA TAKENSU; PIEERU HENRII BOTSUTERUBAAGUSU; JIYON BUIRUHERUMU GEUSU |
| 196 | JPS569132B2 - | JP10574976 | 1976-09-06 | JPS569132B2 | 1981-02-27 | |
| 197 | Production of methane | JP14877079 | 1979-11-16 | JPS5572121A | 1980-05-30 | ROBIZU HOWAIMAN |
| 198 | Catalysts for manufacturing methaneecontaining gas | JP10574976 | 1976-09-06 | JPS5331590A | 1978-03-24 | FUTAMI HIDEO |
| 199 | Nenryotenkazai | JP15392575 | 1975-12-23 | JPS5189505A | 1976-08-05 | MACHLEDER W H; BOLLINGER J M |
| 200 | JPS5077301A - | JP12865073 | 1973-11-15 | JPS5077301A | 1975-06-24 | |
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