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11. 发明专利

CA1012955A METHOD FOR THE PRODUCTION OF ACTIVATED CARBON SPHERES 未知
公开(公告)号：CA1012955A
公开(公告)日：1977-06-28
申请号：CA198481
申请日：1974-04-30
申请人： KUREHA CHEMICAL IND CO LTD , TOYO BOSEKI
发明人： NAGAI HIROSI , KATORI KUNIHIKO , SHIIKI ZENYA , AMAGI YASUO
IPC分类号： C01B32/336 , B01D53/02 , B01J20/20 , B01J21/18 , B01J35/08 , B01J37/00 , C01B32/384
摘要： Spheres of activated carbon are obtained by melting and mixing 100 parts by weight of pitch with 10 to 50 parts by weight of an aromatic solvent compatible with said pitch and 0.01 to 1 part by weight of a metal compound, molding the resultant molten mixture to form a plurality of spheres, immersing the formed spheres in an organic solvent which is compatible with said aromatic solvent and destitute of affinity for said pitch to extract said aromatic solvent from said spheres, infusibilizing the resultant porous pitch spheres having micro-pores and thereafter activating the porous pitch spheres in an atmosphere of ammonia gas at the temperature of 550 to 1000 DEG C. The activated carbon spheres thus produced are particularly useful as activated carbon for the desulfurization of a sulfurous acid gas-containing combustion exhaust gas and for treatment of waste liquor from a sulfite pulp process.

12. 发明专利

DE2419827A1 未知
公开(公告)号：DE2419827A1
公开(公告)日：1974-11-14
申请号：DE2419827
申请日：1974-04-24
申请人： KUREHA CHEMICAL IND CO LTD , TOYO BOSEKI
发明人： NAGAI HIROSHI , KATORI KUNIHIKO , SHIIKI ZENYA , AMAGI YASUO
IPC分类号： C01B32/336 , B01D53/02 , B01J20/20 , B01J21/18 , B01J35/08 , B01J37/00 , C01B32/384 , C01B31/14
摘要： Spheres of activated carbon are obtained by melting and mixing 100 parts by weight of pitch with 10 to 50 parts by weight of an aromatic solvent compatible with said pitch and 0.01 to 1 part by weight of a metal compound, molding the resultant molten mixture to form a plurality of spheres, immersing the formed spheres in an organic solvent which is compatible with said aromatic solvent and destitute of affinity for said pitch to extract said aromatic solvent from said spheres, infusibilizing the resultant porous pitch spheres having micro-pores and thereafter activating the porous pitch spheres in an atmosphere of ammonia gas at the temperature of 550 to 1000 DEG C. The activated carbon spheres thus produced are particularly useful as activated carbon for the desulfurization of a sulfurous acid gas-containing combustion exhaust gas and for treatment of waste liquor from a sulfite pulp process.

13. 发明专利

DE1268845B 未知
公开(公告)号：DE1268845B
公开(公告)日：1968-05-22
申请号：DE1268845
申请日：1965-05-12
申请人： KUREHA CHEMICAL IND CO LTD
发明人： AMAGI YASUO , SHIIKI ZENYA
IPC分类号： C07C409/34 , C08F2/00 , C08F4/32 , C08F4/34

14. 发明专利

DE1264071B 未知
公开(公告)号：DE1264071B
公开(公告)日：1968-03-21
申请号：DEK0055136
申请日：1965-01-29
申请人： KUREHA CHEMICAL IND CO LTD
发明人： AMAGI YASUO , SUZUKI SHINICHI
IPC分类号： C08F36/16

15. 发明专利

CA956760A PROCESS FOR PRODUCTION OF A CARBONACEOUS POROUS MATERIAL 未知
公开(公告)号：CA956760A
公开(公告)日：1974-10-29
申请号：CA126411
申请日：1971-10-29
申请人： KUREHA CHEMICAL IND CO LTD
发明人： AMAGI YASUO , NOGUCHI KAZUO , NAKAO MASAAKI , UEDA YUTAKA
IPC分类号： C04B38/06 , B01D39/20 , B01D71/02 , C01B31/02 , C04B14/02 , C04B35/532 , C04B38/08

16. 发明专利

DE2411828A1 未知
公开(公告)号：DE2411828A1
公开(公告)日：1974-09-26
申请号：DE2411828
申请日：1974-03-12
申请人： KUREHA CHEMICAL IND CO LTD , TOYO BOSEKI
发明人： AMAGI YASUO , INADA SATOSHI
IPC分类号： B01D15/02 , B01J8/20 , C02F1/28

17. 发明专利

CA926710A PROCESS FOR THE PRODUCTION OF HOLLOW MICROSPHERES OF PITCH AND CARBON 未知
公开(公告)号：CA926710A
公开(公告)日：1973-05-22
申请号：CA114343
申请日：1971-05-31
申请人： KUREHA CHEMICAL IND CO LTD
发明人： SHIIKI ZENYA , OHSUMI YUKIHIKO , NOGUCHI KAZUO , AMAGI YASUO
IPC分类号： C08L95/00 , C01B31/02 , C08L33/00 , C08L33/02 , C10C3/14
摘要： 1318324 Carbon microspheres from pitch KUREHA KAGAKU KOGYO KK 26 May 1971 [29 May 1970] 17330/71 Heading C1A [Also in Division C5] Hollow microspheres of pitch having a diameter of 5 to 500 Á which are infusibilized and carbonized, are made by thoroughly mixing a highly aromatic hard pitch (S.P. 60‹ to 350‹ C.) with an organic solvent having a low B.P. (not above 150‹ C.) and dispersing the mixture in water in the presence of a protective colloid to form the spheres, which are foamed by rapid heating, e.g. in an air stream, to a temperature sufficient to vaporize the solvent in the spheres and near the S.P. of the pitch but insufficient to cause the spheres to collapse or adhere to each other. The pitch must have a nitrobenzeneinsoluble content between 0 and 25%, and a H.C. atomic ratio in the range 0À2 to 1À0, suitable pitches being obtained by the removal of low molecular weight or oily components from coal tar or the by-product tars formed during the production of olefins by heating petroleum hydrocarbons to 700‹ to 2500‹ C. for 0À001 to 2 seconds. Solvents mentioned include benzene, toluene, xylene, carbon tetrachloride, chloroform, ethylene dichloride, tetrahydrofuran, butyl ether, pentane, hexane, cyclopentane and cyclohexane, and they may form 0À2 to 10% b.w. based on the pitch. A homogeneous mix is formed by heating and stirring, and it is added to a mixture of water and colloid. After stirring and cooling, the spheres are removed, e.g. by centrifuging, from the water. Colloids, which may form from 0À01 to 5% b.w. of the water, include partially saponified polyvinyl acetate, polyvinyl alcohol, methyl cellulose, carboxymethyl cellulose, polyacrylic acid and its salts, starch, konjakflour, gum arabic and gelatine. Pitch to water weight ratios range from 1 : 1 to 1:3. After being foamed, the hollow spheres are infusibilized (to prevent melting during carbonization) by treatment with an oxidizing gas at elevated temperature or a liquid, e.g. nitric acid, sulphuric acid, or a solution of chromic acid or potassium permanganate at room temperature, and carbonized for from 10 to 200 minutes at a temperature in the range 600‹ to 2000‹ C. in a non-oxidizing atmosphere.

18. 发明专利

DE1769992A1 未知
公开(公告)号：DE1769992A1
公开(公告)日：1972-02-03
申请号：DE1769992
申请日：1968-08-17
申请人： KUREHA CHEMICAL IND CO LTD
发明人： AMAGI YASUO , YUSA HARUHIKO
IPC分类号： C08F279/06 , C08L27/06 , C08L51/04 , C08F29/24

19. 发明专利

CA859239A POLYMER COMPOSITION AND PROCESS FOR PRODUCING THE SAME 未知
公开(公告)号：CA859239A
公开(公告)日：1970-12-22
申请号：CA859239D
申请人： KUREHA CHEMICAL IND CO LTD
发明人： SHIKI ZENYA , AMAGI YASUO , OHYA MASAKI , YUSA HARUHIKO

20. 发明专利

CA856882A PROCESS FOR POLYMERIZATION OF VINYL COMPOUNDS 未知
公开(公告)号：CA856882A
公开(公告)日：1970-11-24
申请号：CA856882D
申请人： KUREHA CHEMICAL IND CO LTD
发明人： AMAGI YASUO , SHIIKI ZENYA

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