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91. 发明专利

JP2002233773A METHOD FOR RECOVERING WATER CONTAINING HIGH PURITY BORON AND DEVICE FOR TREATING BORON ELUTING SOLUTION ELUTED FROM RESIN SELECTIVELY ADSORBING BORON 失效
公开(公告)号：JP2002233773A
公开(公告)日：2002-08-20
申请号：JP2001032584
申请日：2001-02-08
申请人： NIPPON DENKO
发明人： HAYAKAWA SATOSHI , KITANI HITONORI , IZUMI TAKESHI
IPC分类号： B01J39/04 , B01J41/04 , C01B35/02
摘要： PROBLEM TO BE SOLVED: To provide a method and a device therefor which can recover water containing high purity boron by making a resin selectively adsorbing boron adsorb boron in waste water and by treating a boron eluting solution containing cations and anions obtained by eluting the adsorbed boron with a mineral acid. SOLUTION: The boron eluting solution eluted with the mineral acid from the resin selectively adsorbing boron firstly passes through a cation exchange column filled with a strongly acidic cation exchange resin modified to H type, and then passes through an anion exchange column filled with a I-type or II-type strongly basic anion exchange resin modified to OH type, or a weakly basic anion exchange resin modified to OH type.

92. 发明专利

JP2001206709A METHOD OF MANUFACTURING FOR BORON/CARBON COMPOSITE MATERIAL 失效
公开(公告)号：JP2001206709A
公开(公告)日：2001-07-31
申请号：JP2000014490
申请日：2000-01-24
申请人： UNIV HOKKAIDO
发明人： KONNO HIDETAKA
IPC分类号： C04B35/52 , C01B31/02 , C01B35/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a boron/carbon composite material which is capable of uniformalizing the distribution of the boron concentration and manufacturing in a large quantity with a simple process. SOLUTION: The manufacturing method of the boron/carbon composite material is performed by heat-treating an organic borate complex in an inert atmosphere. The organic borate complex is obtained by preparing a solution containing an organic compound or a high molecular compound capable of forming a boric ester and boric acid or boric acid containing an organic functional group.

93. 发明专利

JP2987432B2 失效
公开(公告)号：JP2987432B2
公开(公告)日：1999-12-06
申请号：JP32698897
申请日：1997-11-12
申请人： KAGAKU GIJUTSUCHO MUKIZAISHITSU KENKYUSHOCHO
发明人： TANAKA TAKAO
IPC分类号： C01B35/02 , C01B35/04 , G02B1/02

94. 发明专利

JP2939529B2 失效
公开(公告)号：JP2939529B2
公开(公告)日：1999-08-25
申请号：JP31275496
申请日：1996-11-08
申请人： KOGYO GIJUTSU INCHO
发明人： HIROTSU TAKAHIRO , SONODA MITSUNARI , MAKITA YOJI , TAKAGI NORIO , OOI KENTA
IPC分类号： B01D59/26 , C01B35/02 , C07B63/00

95. 发明专利

JP2874925B2 失效
公开(公告)号：JP2874925B2
公开(公告)日：1999-03-24
申请号：JP50286889
申请日：1989-02-01
申请人： DAU CHEM CO ZA
发明人： UEIMAA ARAN DABURYUU , MUUA UIRIAMU JII , ROOCHI REIMONDO PII
IPC分类号： C04B35/58 , B01J8/00 , B01J8/08 , B01J8/12 , B01J19/08 , B01J19/26 , C01B21/064 , C01B31/30 , C01B31/36 , C01B35/02 , C01B35/04 , C04B35/563

96. 发明专利

JPH11652A METHOD OF TREATING BORON-CONTAINING WATER 失效
公开(公告)号：JPH11652A
公开(公告)日：1999-01-06
申请号：JP15666497
申请日：1997-06-13
申请人： ELECTRIC POWER DEV CO , KURITA WATER IND LTD , KANSAI ELECTRIC POWER CO
发明人： YAMASHITA NAOYUKI , TOYAMA KOJI , SHIRAKATA TADASHI , MUTO KENICHI , ASADA HIROYUKI , YAMADA RYOICHI , HORII SHIGEKI , ETO YOSHIHIRO
IPC分类号： C02F1/26 , C01B35/02 , C02F1/58
摘要： PROBLEM TO BE SOLVED: To raise back extraction efficiency and extraction efficiency by using an aqueous alkaline solution as a back extractant and back-extracting the extractant after boron extraction at a predetermined temperature or higher. SOLUTION: An extractant which has extracted boron from an extraction tank 1 is fed as a back extractant to a back extraction tank 2 equipped with a mixer part and a settler part at a rate of about 42 L/hr. An aqueous NaOH solution having a pH of about 13 is simultaneously fed at a rate of about 10.5 L/hr in order to carry out back extraction. The extractant after back extraction is returned to an extraction process through pipes 16, 12 and is recirculated for use. At this time, the back extractant fed to the back extraction tank 2 is heated so as to raise temperature in the back extraction tank to 20 deg.C or higher. The back extractant after back extraction is transferred to a precipitation tank 3 and is cooled to about 23 deg.C or lower to precipitate boron, which is then taken out from a pipe 18. The back extractant is returned to the back extraction tank 2 via a pipe 19, a heating means 4 and a pipe 15 and is recycled for use. By this process, efficiency of extraction, back extraction and precipitation is raised.

97. 发明专利

JPH10130016A DOPANT MATERIAL BORON FOR SEMICONDUCTOR AND ITS PRODUCTION 失效
公开(公告)号：JPH10130016A
公开(公告)日：1998-05-19
申请号：JP32068396
申请日：1996-10-25
申请人： KOJUNDO KAGAKU KENKYUSHO KK
发明人： HOCHIDO YUKO , KADOKURA HIDEKIMI , KONDOU MORIATSU , YAMAGISHI YUKINORI , YOKOYAMA HIDECHIKA
IPC分类号： C01B35/02 , H01L21/223
摘要： PROBLEM TO BE SOLVED: To obtain a boron useful for a dopant material for a silicon semiconductor, which is capable of producing by a method excellent in mass-productivity and economicity, by selecting an amorphous boron having specific purity and physical property. SOLUTION: The amorphous boron containing 3-0.1wt.% Si and /g BET specific surface area is selected. The boron is produced by allowing boron trichloride, which preferably contains =1ppm Si, to react with a silicon particle preferably containing

98. 发明专利

JP2507938B2 失效
公开(公告)号：JP2507938B2
公开(公告)日：1996-06-19
申请号：JP22538687
申请日：1987-09-10
申请人： MITSUBISHI MATERIALS CORP
发明人： MYAUCHI MASATO , TSUNASHIMA MAKOTO , SAKAI KAZUHIRO
IPC分类号： C01B35/02

99. 发明专利

JPH07267609A METHOD FOR PRODUCING HYDROGEN BORIDE GAS AND APPARATUS THEREFOR 失效
公开(公告)号：JPH07267609A
公开(公告)日：1995-10-17
申请号：JP8116094
申请日：1994-03-29
申请人： NACHI FUJIKOSHI CORP
发明人： KANDA KAZUTAKA
IPC分类号： C01B6/11 , C01B35/02
摘要： PURPOSE:To provide a saved space at a low cost and enable the regulation of the produced gas concentration without requiring expensive evacuation treatment, buildings or apparatuses by introducing boron and hydrogen or a mixed gas of the hydrogen with a rare gas into a discharge plasma in a vacuum reactional vessel. CONSTITUTION:This method for producing hydrogen boride gas is to evacuate the interior of a reactional vessel 3 with a vacuum pump 8 on the outlet side for a gas of an apparatus for producing the hydrogen boride gas, continuously flow hydrogen gas from a hydrogen gas cylinder 14 into the reactional vessel 3, introduce microwaves from a microwave generator 1 after a prescribed pressure attains, produce a plasma in the reactional vessel 3, react the plasma with prearranged boron 4, change the amount of the hydrogen boride produced in the reactional vessel 3 with the plasma intensity and increase the volume ratio of diborane to the hydrogen from (0.01:1) at 300 W output to (0.05:1) at 500 W output. When the feed rate of the hydrogen gas is reduced to 1/2, the ratio of the diborane to the hydrogen at the same microwave output is doubled. Since the volume of the diborane present in the reactional vessel 3 is several cc, the degree of risk is lower than that in the case of feeding the diborane from a gas cylinder thereto and the hydrogen boride is effectively produced.

100. 发明专利

JPH0571286B2 失效
公开(公告)号：JPH0571286B2
公开(公告)日：1993-10-06
申请号：JP21225083
申请日：1983-11-11
申请人： MITSUBISHI CHEM IND
发明人： KOSUGE MASAO , FUKUDA JUNJI
IPC分类号： B01D59/30 , C01B35/02 , G21C7/06 , G21C7/24

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