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 | JPH0456664B2 - | JP28869885 | 1985-12-21 | JPH0456664B2 | 1992-09-09 | TOMITA KOJI; SAKAKIBARA YASUKURA; YAMADA AKIRA |
| 182 | Production of aromatic carboxylic acids | JP20497190 | 1990-08-03 | JPH0491053A | 1992-03-24 | OKUWAKI AKITSUGU |
| PURPOSE: To efficiently produce an aromatic carboxylic acid in high yield in oxidizing coal tar pitch with O 2 or an O 2-containing gas in an aqueous solution of sodium hydroxide by diluting coal tar pitch with a petroleum-based heavy oil followed by oxidizing. CONSTITUTION: Coal tar pitch is used as a raw material, then diluted with a petroleum-based heavy oil, oxidized with oxygen or an oxygen-containing gas in an aqueous solution of sodium hydroxide to economically give an aromatic carboxylic acid. By this method, difficult preliminary treatment is not required, an expensive potassium hydroxide is not used and retention of unreacted pitch can be prevented. The aromatic carboxylic acid is useful as a synthetic raw material for polymers, plasticizers, dye, etc. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 183 | Method for purifying hexafluoropropylidene group-containing aromatic compound | JP16454790 | 1990-06-22 | JPH0454144A | 1992-02-21 | KAWAI TOSHIKAZU; KATO ETSUKO; YOSHIMURA TAKAAKI |
| PURPOSE: To readily remove extremely toxic hexafluoroacetone from the subject compound useful as a crosslinking agent, etc., for fluoroelastomers by adding a basic substance and water to the subject compound containing the hexafluoroacetone. CONSTITUTION: The subject compound containing a slightly removable hexafluoroacetone taken into the crystal structure of the compound as an impurity is mixed with as basic substance, preferably an inorganic base, especially NaOH or KOH, and water to convert the subject compound into a water-soluble salt and simultaneously convert the impurity into gaseous fluoroform and trifluoroacetate to remove it thereby industrially readily obtaining the subject compound substantially not containing the impurity, readily handled and useful as a raw material for highly heat-resistant fluorinated polymers, electronic materials or structural materials. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 184 | Bis(4-halo-phthalic acid) quatersalts, process for their preparation and their use | JP23596690 | 1990-09-07 | JPH03169834A | 1991-07-23 | ORUGA BEINBAAGU; REONAADO EMU SHIYOAA |
| NEW MATERIAL: Compounds of the formula (M is a alkali metal or ammonium; X is halogen atom). USE: Purification of 4-halo-phthalic acid. PROCESS: An aqueous solution containing 4-halo-phthalic acid and an alkali metal ion or an ammonium ion is prepared, adjusting the pH of the solution at 2-3 (pref. 2.1-2.8) and the precipitated compd. of the formula is recovered. COPYRIGHT: (C)1991,JPO | ||||||
| 185 | Production of aromatic carboxylic acid | JP26319689 | 1989-10-09 | JPH03123755A | 1991-05-27 | IWASAKI HIROSHI; ITO TERUO |
| PURPOSE: To obtain the subject compound by oxidizing an aromatic compound having an alkyl or partially oxidized alkyl group with O 2 in the presence of a water-insoluble metal oxide catalyst and then dissolving the formed aromatic carboxylic acid in an aqueous reaction medium under heated and pressurized conditions, then removing the catalyst and cooling the resultant mother liquor. CONSTITUTION: An aromatic compound having an alkyl or partially oxidized alkyl substituent group is oxidized with molecular oxygen gas in the presence of a water-insoluble metal oxide catalyst in an aqueous reaction medium to provide an aromatic carboxylic acid, which is then dissolved in the aqueous reaction medium under heated and pressurized conditions to separate a solid of the water-insoluble catalyst from a liquid. The resultant mother liquor is subsequently cooled to deposit an aromatic carboxylic acid and afford the objective high purity aromatic carboxylic acid. Thereby, the high purity product is obtained by a simple method. COPYRIGHT: (C)1991,JPO&Japio | ||||||
| 186 | Production of aromatic carboxylic acid | JP14207589 | 1989-06-06 | JPH02231450A | 1990-09-13 | MITAMURA SHUICHI; KADA YOSHIMI; FUJISHIRO KOICHI; TSUTSUMI YASUHISA |
| PURPOSE: To obtain the title compound of industrial value without the need for expensive raw materials and high pressure by heating a mixture of a carboxyl group-free aromatic compound and an aromatic carboxylic acid salt as raw materials under carbon dioxide pressurization in the presence of a specific catalyst. CONSTITUTION: Using as catalyst, at least one compound selected from (A) compounds of group IIb metals and (B) compounds of cesium and groups IIa and IIIa metals, respectively, (1) a carboxyl group-free aromatic compound (e.g. naphthalene) and (2) an aromatic carboxylic acid salt (e.g. a salt of benzenecarboxylic acid such as benzoic acid) are made to react under carbon dioxide pressurization pref. at a pressure of 20-150kg/cm 2.G and temperature of 350-450°C, thus obtaining the objective compound. The compound A is pref. Zn or Cd compound. The amounts of the compounds A and B to be used are pref. each 5-25mol% based on the aromatic carboxylic acid salt. COPYRIGHT: (C)1990,JPO&Japio | ||||||
| 187 | Production of aromatic carboxylic acid | JP31062988 | 1988-12-07 | JPH02157245A | 1990-06-18 | NOMURA MASAKATSU; MIURA MASAHIRO |
| PURPOSE: To obtain the title compound which is used in synthesis of functional pigments, liquid crystals or medicines easily in high catalyst efficiency and in high yield by using an aromatic sulfonyl halide as a starting compound to effect the reaction in the presence of a fatty acid metal salt, CO and Pd catalyst. CONSTITUTION: An aromatic sulfonyl chloride of formula I [Ar is aromatic group which may be substituted; X is halogen; m is 1 or more] such as 1- naphthalenesulfonyl chloride is allowed to react with 0.25 to 3moles, per mole of the compound of formula I, of a fatty acid metal salt of formula II (M is Li, Na, K, B, Al, Ti; R is H, alkyl of 6 or less carbon atoms; n is 1 to 4) or a fatty acid metal alkoxide of formula III and equimolar or more amount of carbon monoxide in the presence of 0.1 to 20wt.% of a Pd catalyst such as tetrakis-triphenylphosphine palladium, at 20 to 200°C for 1 to 24 hours under heating whereby 1-naphthoeic acid which is useful as a monomer for engineering plastics is obtained. COPYRIGHT: (C)1990,JPO&Japio | ||||||
| 188 | JPS6412254B2 - | JP16732381 | 1981-10-21 | JPS6412254B2 | 1989-02-28 | UUDO RUUDORUFU; MANFUREETO SHUMITSUTO; DEIITAA FURAITAAKU; RUUTOITSUHI BOTSUTENBURUUFU |
| 189 | Production of aromatic carboxylic acid | JP22613186 | 1986-09-26 | JPS6383046A | 1988-04-13 | SHIRAKI SHIGEMI; MIZUNO KENICHI |
| PURPOSE: To obtain the titled compound by oxidizing an alkyl aromatic compound in a liquid phase with an oxygen-containing gas, to suppress foaming, to make oxygen partial pressure high and to repress energy loss, by removing a condensable component from taken out vapor and circulating and using the gas. CONSTITUTION: In obtaining the titled compound by oxidizing an alkyl aromatic compound in a liquid phase with an oxygen-containing gas by a reactor 6 in the presence of a heavy metal compound and/or a bromine-containing compound at 150W270°C, preferably 170W220°C, vapor is taken out through a line 1 at the top of the reactor 6, cooled by a heat exchanger 8 and a condensable component is put in a drum 7 and taken out of the system from a line 11. Part of the vapor is circulated by a line 3 to a gas phase part of the reactor. A ratio of an exhaust gas refluxed to the reactor to the gas discharged to the outside of the system is usually 5W400%, preferably 10W200%. COPYRIGHT: (C)1988,JPO&Japio | ||||||
| 190 | Recovering method for catalyst | JP28869885 | 1985-12-21 | JPS62149347A | 1987-07-03 | TOMITA KOJI; SAKAKIBARA YASUZOU; YAMADA AKIRA |
| PURPOSE: To recover a catalytic heavy metal at a high yield by burning the residue after removal of liquid material from the resultant product of oxidation reaction of an aliphat. substd. arom. compd. then treating the same with a hydrohalogenic acid and recovering the heavy metal. CONSTITUTION: The aliphat. substd. arom. compd. is oxidized in a liquid phase by molecular oxygen in the presence of a catalyst contg. the heavy metal to an arom. carboxylic acid and thereafter the resultant reaction product, etc., are removed by an extracting means, etc., to obtain the residue. The residue is burned or calcined by using air, oxygen or oxygen-contg. gas to remove the greater part of the by-product of oxidation in the residue in the form of a roasting gas. The solid material-like roasted matter is thus yielded. Such roasted matter is treated with the hydrohalogenic acid to dissolve the catalytic metallic component, by which the liquid material contg. a small amt. of the solid matter is obtd. The liquid material is subjected to a treatment such as filtration and centrifugal sepn. and the heavy metal is recovered from the separate eluate. COPYRIGHT: (C)1987,JPO&Japio | ||||||
| 191 | Production of hydrophilic group-containing aromatic compound substituted with deuterium | JP19723285 | 1985-09-06 | JPS6256441A | 1987-03-12 | TASHIRO MASASHI; AOKI YUICHI; TAKIGAWA AKIO; MAEDA KOICHI; TAGO IKUO; YOSHIDA MOTOAKI; MASE SHOJI |
| PURPOSE: To produce the titled compound having excellent characteristics such as the improvement of the effect of medicines and agricultural chemicals, from an inexpensive raw material at a low cost, by contacting an aromatic compound having hydrophilic group with a basic heavy water solution in the presence of a catalyst containing plural different metals. CONSTITUTION: The objective compound can be produced economically by contacting (A) an aromatic compound having one or more hydrophilic groups preferably bonded directly to the aromatic ring and especially selected from hydroxyl group, carboxyl group and amino group, especially a phenol derivative with (B) a basic heavy water solution in the presence of (C) a catalyst containing a plurality of different metal atoms, preferably Raney alloy. The process enables the production of the titled compound from an inexpensive raw material such as phenol, at a low cost, without using expensive raw material such as deuterated benzene. Consequently, the weather-resistance of phenolic resin, PET, polycarbonate, etc., can be achieved at a low cost and the modified polymer can be used as a material of optical fiber. COPYRIGHT: (C)1987,JPO&Japio | ||||||
| 192 | Manufacture of carboxylic acid chloride and catalyst therefor | JP17192486 | 1986-07-23 | JPS6222730A | 1987-01-30 | SENE JIYANNPIEERU; GOOTEIE PATORISHIA; MARUFURU TEIERI; URUFU PATORITSUKU |
| 193 | JPS623823B2 - | JP5634079 | 1979-05-10 | JPS623823B2 | 1987-01-27 | KYORA TADAMITSU; OODO NORIO |
| 194 | Benzoic acid intermediate having three substituents | JP4746786 | 1986-03-06 | JPS61207369A | 1986-09-13 | LEE DAVID LOUIS |
| 195 | Manufacture of aromatic carbonyl compound | JP22763185 | 1985-10-11 | JPS6191151A | 1986-05-09 | PATORITSUKU JIEIMUZU HOONAA; BIKUTAAZU JIYANSUNZU; HAINRITSUHI KAARU GORUSU |
| 196 | JPS6056696B2 - | JP574982 | 1982-01-18 | JPS6056696B2 | 1985-12-11 | TANAKA TOORU; HATAYA MASANORI; TANAKA KAZUO; SAKAI YUKIO; HAMADA YASUSHI |
| 197 | Protease inhibitor | JP9271884 | 1984-05-09 | JPS59210046A | 1984-11-28 | RICHIYAADO OOGASUTO MIYUURAA; RICHIYAADO AREN PAATEISU |
| 198 | Treatment of reaction mixture or waste liquor | JP22755782 | 1982-12-28 | JPS59123593A | 1984-07-17 | HASEGAWA RIYOUICHI; HOUJIYOU TADASHI; OOSATO FUMIKI |
| PURPOSE: To remove substantially incorporated irritating substances by adding hexamethylenetetramine to a reaction mixture or waste liquor obtained by liquid-phase oxidation of hydrocarbons with an O 2-contg. gas using a heavy metal compd. and a bromine compd. as a catalyst. CONSTITUTION: The materials to be treated consisting of a reaction mixture obtained by oxidation of hydrocarbons or substituted hydrocarbons with an O 2- contg. gas, its waste liquor or the residue after removing a solvent from the waste liquor or the like, are treated as follows. Namely, 1/3W5 times by wt. as much hexamethylenetetramine as the irritating substances expected to be included is added to the materials to be treated at 50W200°C. The time required for the treatment is 1W10hr, preferably 2W6hr. Consequently, the irritating substances always present only in an extremely dilute concn. are treated with an extremely small amt. of hexamethylenetetramine, and the irritating substances are reduced to the extent that the irritation is insensible to eye and skin. COPYRIGHT: (C)1984,JPO&Japio | ||||||
| 199 | Purification of aromatic carboxylic acid | JP11533282 | 1982-06-30 | JPS595140A | 1984-01-12 | MITA TOSHIHIRO; ITSUSHIKI TOSHIROU; MIKI TETSUO |
| PURPOSE: To purify an aromatic carboxylic acid containing a halogen compound, economically, saving the water consumption, by washing the crude carboxylic acid with water in the presence of a compound free from halogen and having a specific solubility in water, thereby easily and effectively removing the contained halogen compound. CONSTITUTION: An aromatic carboxylic acid containing a halogen compound is washed with water in the presence of a compound free from halogen and having a water-solubility of ≥10g/100g at 25°C (preferably, e.g. a compound of a metal such as alkaline earth metals, iron, manganese, etc., e.g. sodium carbonate) to remove the halogen compound and obtain highly pure titled compound. The above metallic compound is preferably added to the water prior to washing. The amount of the compound is preferably 50W1,000ppm, especially 100W1,000ppm based on the aromatic carboxylic acid to be washed with the water. COPYRIGHT: (C)1984,JPO&Japio | ||||||
| 200 | Preparation of aromatic polycarboxylic acid | JP69282 | 1982-01-06 | JPS58118541A | 1983-07-14 | TANAKA TOORU; HATAYA MASANORI; TANAKA KAZUO; SAKAI YUKIO; HAMADA YASUSHI |
| PURPOSE: To use Zr containing specific amounts of Fe, Sn and Nb as a material of corrosion-resistant reactor for the preparation of the titled substance by the oxidation of an alkyl-substituted aromatic aldehyde, etc. with molecular oxygen in the presence of a catalyst such as bromine ion, etc. CONSTITUTION: In the preparation of an aromatic polycarboxylic acid by the oxidation of the corresponding alkyl-substituted aromatic aldehyde or carboxylic acid with molecular oxygen in an aqueous solvent in the presence of bromine ion or bromine ion and heavy metal ion as catalysts, the reaction is carried out in a reactor made of Zr containing ≤0.12% Fe and ≤0.1% Sn+Nb. When the amount of Fe or the sum of Sn and Nb exceeds the above level, the occurence of the corrosion increases remarkably. It is not necessary to construct the whole reactor with the above Zr material, however, at least its inner wall is to be made of a Zr material having a sufficient thickness to resist the mechanical abrasion. COPYRIGHT: (C)1983,JPO&Japio | ||||||
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