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1. 发明专利

JPS6445725A PRODUCTION OF TITANIUM OXIDE BURNED PRODUCT 失效
公开(公告)号：JPS6445725A
公开(公告)日：1989-02-20
申请号：JP12413488
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , KOBAYASHI TAKAFURU , SETO TORU , MIYAKE JUNSUKE , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： B01J21/06 , B01J23/28 , B01J23/30 , B01J32/00 , C01G23/00 , C04B35/46
摘要： PURPOSE:To enable production of titanium oxide calcined product having large surface area and excellent heat resistance as well as excellent strength after molding and suitable as a carrier or catalyst, by calcining solated metatitanic acid containing fine-particle silicic acid. CONSTITUTION:A fine-particle silicic acid known also as white carbon of another name and having extremely large specific surface area is added to metatitanic acid sol and mixed while stirring and the mixture is then calcined. As necessary, after fine-particle silicic acid is added to metatitanic acid, the metatitanic acid may be solated. Fine-particle silicic acid can be more uniformly dispersed into metatitanic acid by solation, because metatitanic acid is gel-form. A mixed of metatitanic acid obtained thus and fine-particle silicic acid is washed with water and then calcined at about

2. 发明专利

JPS63310767A PRODUCTION OF TITANIUM OXIDE CALCINED PRODUCT 失效
公开(公告)号：JPS63310767A
公开(公告)日：1988-12-19
申请号：JP12413388
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , KOBAYASHI TAKAFURU , SETO TORU , MIYAKE JUNSUKE , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： C04B35/46 , C01G23/00
摘要： PURPOSE:To inhibit the growth of titanium oxide crystals and to obtain a calcined product having superior heat resistance and mechanical strength by adding a W compd. and/or an Mo compd. to metatitanic acid converted into sol. CONSTITUTION:A W compd. and/or an Mo compd. is used as an additive. This additive is added to metatitanic acid converted into sol and the metatitanic acid is calcined. During the calcination the growth of titanium oxide crystals is inhibited and the crystals remain as ungrown anatase type crystals, so the heat resistance and mechanical strength of a calcined product are improved.

3. 发明专利

JPS6445724A PRODUCTION OF BURNT ARTICLE OF TITANIUM OXIDE 失效
公开(公告)号：JPS6445724A
公开(公告)日：1989-02-20
申请号：JP12413288
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , MORII ATSUSHI , SUYAMA KOHEI , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： C01G23/00 , B01J21/06 , B01J32/00 , C04B35/46
摘要： PURPOSE:To enable production of a calcined article suitable as a carrier or a catalyst, having large surface area, excellent heat resistance and excellent strength after molding, by adding silicic acid fine particles to titanium sulfate and thermally hydrolyzing. CONSTITUTION:Silicic acid fine powder having extremely high specific surface area, known as white carbon of another name, is added to an aqueous solution of titanium sulfate. The mixture is thermally hydrolyzed to form metatitanic acid, which is precipitated together with the silicic acid fine powder. In the operation, the thermal hydrolysis of titanium sulfate is carried out by heating the aqueous solution of titanium sulfate containing the silicic acid fine powder usually to 80 deg.C- the boiling point thereof, preferably to the boiling point and more preferably in the presence of seed crystal to shorten time required. Since metatitanic acid formed by the thermal hydrolysis is gelatinous state, metatitanic acid is partially or wholly made into sol, washed, filtered, dried, calcined at

4. 发明专利

JPH0559847B2 失效
公开(公告)号：JPH0559847B2
公开(公告)日：1993-09-01
申请号：JP12413288
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , MORII ATSUSHI , SUYAMA KOHEI , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： C01G23/00 , B01J21/06 , B01J32/00 , C04B35/46

5. 发明专利

JPS6445726A PRODUCTION OF TITANIUM OXIDE BURNED PRODUCT 失效
公开(公告)号：JPS6445726A
公开(公告)日：1989-02-20
申请号：JP12413588
申请日：1988-05-21
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO
发明人： SERA TOSHIKUNI , MITSUOKA SHIGEAKI , KOBAYASHI TAKAFURU , SETO TORU , MIYAKE JUNSUKE , ABE KAZUMITSU , NAKATSUJI TADAO , BABA TOSHIKATSU , MATSUDA TOSHIAKI
IPC分类号： B01J23/24 , B01J21/06 , B01J32/00 , C01G23/00 , C04B35/46
摘要： PURPOSE:To enable production of titanium oxide calcined product having large surface area, excellent heat resistance as well as excellent strength after molding and suitable as a carrier or catalyst, by calcining solated metatitanic acid containing fine-particle silicic acid and W and Mo compounds. CONSTITUTION:(a) Fine-particle silicic acid known as white carbon of another name and having extremely large specific surface and (b) tungsten oxide and W compound which is a precursor capable of forming tungsten oxide by burning and/or Mo compound similar to the W compound are used. Metatitanic acid is preferably solated and component a and component b are added to the sol and mixed and the mixture is then burned. After component a and component b and added to metatitanic acid, metatitanic acid may be solated and mixed. Thus components a and b can be uniformly mixed with metatitanic acid. The mixture of metatitanic acid and components a and b obtained thus is dried and then calcined at about >=800 deg.C and pulverized to provided the powdery calcined product.

6. 发明专利

DE69615285T2 未知
公开(公告)号：DE69615285T2
公开(公告)日：2002-06-27
申请号：DE69615285
申请日：1996-06-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： ATSUSHI TATANI , MAKOTO SUSAKI , KAZUAKI KIMURA , TAKU SHIMIZU , SERA TOSHIKUNI , KENJI INOUE
IPC分类号： B01D53/50 , B01D53/52 , B01D53/73 , B01D53/96 , B01J8/22 , B01J10/00 , B01J19/18 , C01F11/46 , C10K1/26 , B01D53/04
摘要： This invention relates to a gas refining system wherein sulfur compounds contained in a high-temperature and high-pressure reducing gas obtained by the pressure gasification of coal or heavy oil or the like are adsorbed and removed in the form of a sulfide by an adsorbent, the adsorbent having the sulfide formed thereon is regenerated by roasting it with an oxygen-containing gas, and the regeneration gas containing sulfur dioxide formed by the roasting reaction is introduced into a reactor (50) where, by use of gas blowing means, the regeneration gas and an oxygen-containing gas are blown into a calcium compound-containing slurry fed to the reactor (50), and thereby brought into gas-liquid contact with the slurry to effect the absorption of sulfur dioxide and the precipitation of gypsum within the reactor (50), characterized in that the gas refining system is provided with temperature control means for selectively controlling the temperature of the slurry within the reactor (50) so as to fall within at least a first temperature range which causes alpha -gypsum hemihydrate to precipitate or a second temperature range which causes gypsum dihydrate to precipitate. This invention is also characterized by the reactor (50) having a pressure vessel into which the regeneration gas can be blown under at least a pressure higher than atmospheric pressure, and by the gas blowing means comprising a stirring rod (63) disposed in the lower part of the reactor (50) so as to be horizontally rotatable, and at least a gas supply pipe (64) disposed integrally with the stirring rod (63) for injecting the regeneration gas and the oxygen-containing gas in the vicinity of the stirring rod (63).

7. 发明专利

DE3713844C2 未知
公开(公告)号：DE3713844C2
公开(公告)日：1997-04-17
申请号：DE3713844
申请日：1987-04-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUEHIRO MITSUGI , SERA TOSHIKUNI , INOUE KENJI , SHIMADA AKIRA
IPC分类号： C01B3/56 , C01B17/52 , C10K1/20 , C10K1/08
摘要： The present invention is directed to a method for purifying a high-temperature reducing gas by continuously circulating the processes of reducing a regenerated absorbent with the high-temperature reducing gas, until concentrations of aimed reducing gases have become uniform on upstream and downstream sides of the absorbent, and absorbing sulfur compounds by the use of this absorbent and thereby removing these sulfur compounds therefrom; the aforesaid method being characterized by using at least three reactors filled with the absorbent, by consisting of the four steps of reduction, absorption, SO2 reduction and regeneration, and by comprising the steps of feeding a circulating gas from the regenerating step to the SO2 reducing step; converting an SO2 gas produced in the regenerating step and the SO2 reducing step into elemental sulfur and recovering the latter as liquid sulfur; and introducing a part of the SO2 gas into the reducing step and returning the remaining SO2 gas to the regenerating step.

8. 发明专利

DE69612604D1 未知
公开(公告)号：DE69612604D1
公开(公告)日：2001-05-31
申请号：DE69612604
申请日：1996-12-13
申请人： KANSAI ELECTRIC POWER CO , MITSUBISHI HEAVY IND LTD
发明人： SUDA TAIICHIRO , KAWASAKI MASAMI , FUJII NAGATOSHI , MORIGUCHI YOSHIKO , IIJIMA MASAKI , SERA TOSHIKUNI
IPC分类号： B01D53/86 , C01F11/46 , B01D53/52
摘要： After hydrogenation and desulfurization treatment of raw fuel in the desulfurization unit 1, the product is separated in the acidic gas separator 2 into fuel and a hydrogen sulfide-containing gas, and the hydrogen sulfide-containing gas is subjected to combustion together with air in the catalyst converter 3 thereby converting the hydrogen sulfide completely into sulfur dioxide to give a sulfur dioxide-containing gas, and this sulfur dioxide-containing gas is reacted with limestone powder and air in water in the oxidation and neutralization reactor 4, and the resulting slurry is dehydrated in the gypsum slurry solid/liquid separator 5 and then dried in the gypsum heater 6.

9. 发明专利

GB2190683A Method for purifying high-temperature reducing gas 未知
公开(公告)号：GB2190683A
公开(公告)日：1987-11-25
申请号：GB8709577
申请日：1987-04-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUEHIRO MITSUGI , SERA TOSHIKUNI , INOUE KENJI , SHIMADA AKIRA
IPC分类号： C01B3/56 , C01B17/52 , C10K1/20 , B01D53/34
摘要： In a method of removing sulphur compounds from a reducing gas by use of at least three absorbent beds of e.g. metal oxide the following steps occur:-… reduction of the absorbent material with the reducing gas, regeneration of used absorbent material by oxidation to produce SO2, production of SO2 from SO3 produced in the method, and reduction of SO2 to elemental sulphur by contact with used absorbent material.

10. 发明专利

DE69615285D1 未知
公开(公告)号：DE69615285D1
公开(公告)日：2001-10-25
申请号：DE69615285
申请日：1996-06-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： ATSUSHI TATANI , MAKOTO SUSAKI , KAZUAKI KIMURA , TAKU SHIMIZU , SERA TOSHIKUNI , KENJI INOUE
IPC分类号： B01D53/50 , B01D53/52 , B01D53/73 , B01D53/96 , B01J8/22 , B01J10/00 , B01J19/18 , C01F11/46 , C10K1/26 , B01D53/04
摘要： This invention relates to a gas refining system wherein sulfur compounds contained in a high-temperature and high-pressure reducing gas obtained by the pressure gasification of coal or heavy oil or the like are adsorbed and removed in the form of a sulfide by an adsorbent, the adsorbent having the sulfide formed thereon is regenerated by roasting it with an oxygen-containing gas, and the regeneration gas containing sulfur dioxide formed by the roasting reaction is introduced into a reactor (50) where, by use of gas blowing means, the regeneration gas and an oxygen-containing gas are blown into a calcium compound-containing slurry fed to the reactor (50), and thereby brought into gas-liquid contact with the slurry to effect the absorption of sulfur dioxide and the precipitation of gypsum within the reactor (50), characterized in that the gas refining system is provided with temperature control means for selectively controlling the temperature of the slurry within the reactor (50) so as to fall within at least a first temperature range which causes alpha -gypsum hemihydrate to precipitate or a second temperature range which causes gypsum dihydrate to precipitate. This invention is also characterized by the reactor (50) having a pressure vessel into which the regeneration gas can be blown under at least a pressure higher than atmospheric pressure, and by the gas blowing means comprising a stirring rod (63) disposed in the lower part of the reactor (50) so as to be horizontally rotatable, and at least a gas supply pipe (64) disposed integrally with the stirring rod (63) for injecting the regeneration gas and the oxygen-containing gas in the vicinity of the stirring rod (63).

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