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1. 发明专利

JP2939830B2 失效
公开(公告)号：JP2939830B2
公开(公告)日：1999-08-25
申请号：JP50690591
申请日：1991-04-05
申请人： KEMIRA OY
发明人： UETSUKUMAN SUTEIGU GORAN ANDERUSU , PERANDERU ROBERUTO , RIIHIMEKI SAKARI
IPC分类号： C01B25/30 , C05B7/00 , C05B11/02

2. 发明专利

JP2655195B2 失效
公开(公告)号：JP2655195B2
公开(公告)日：1997-09-17
申请号：JP34500089
申请日：1989-12-28
申请人： KEMIRA OY
发明人： YUHANI PETSUKA BAPAAOKUSA , YUHANI PETSUKA ESUKERINEN
IPC分类号： C09C1/28 , C03C17/23 , C09C1/00 , C09C1/22 , C09C1/24 , C09C1/36

3. 发明专利

JP2521574B2 失效
公开(公告)号：JP2521574B2
公开(公告)日：1996-08-07
申请号：JP24900490
申请日：1990-09-20
申请人： KEMIRA OY
发明人： IRUTSUKA TSURUNEN , EBAARIISA MUSUTONEN
IPC分类号： C01B15/023

4. 发明专利

JPH05309221A 失效
公开(公告)号：JPH05309221A
公开(公告)日：1993-11-22
申请号：JP23061891
申请日：1991-09-10
申请人： KEMIRA OY
发明人： MAKINIEMI ESKO , MUSTONEN EEVA-LIISA , SIKANDER ARTO
IPC分类号： B01D29/35 , B01D41/04 , B01D65/06 , B01J38/00 , C01B15/023
摘要： PURPOSE: To leave a metal catalyst existing in pores of a sinter and to clean the sinter until gas formation ceases by treating the sinter used for filtration of metal catalyst suspension with an aqueous solution of hydrogen peroxide. CONSTITUTION: In a cleaning apparatus of a first metal filter of hydrogen peroxide plant, a cover 2 of a filter unit having a sinter 3 is disposed between an upper part 4 and a lower part 5 of a cleaning tank 1. Upon cleaning an aqueous solution of hydrogen peroxide is conducted from a container 6 along the tube 16. Thus the aqueous solution of hydrogen peroxide flows from the upper part 4 into the sinter 3, that is, to their so called clean side and through the sinter 3 into the lower part 5, that is, to the so called dirty side. That is, the solution of hydrogen peroxide flows in the opposite direction of the direction in which a metal catalyst suspension flows during the filtering of the metal catalyst in the catalytic hydrogenation of anthraquinone or the like and releases the metal catalyst caught in the pores of the sinter 3. And ceasing of gas formation indicates that no significant quantities of metal catalysts are left.

5. 发明专利

JPH0376184B2 失效
公开(公告)号：JPH0376184B2
公开(公告)日：1991-12-04
申请号：JP50628686
申请日：1986-11-20
申请人： FUINPURUBA AB OY , KEMIRA OY
发明人： NIEMI YOKO , PIORIE KAARURO , KORUHOONEN HEIKI
IPC分类号： B02C19/06
摘要： PCT No. PCT/FI86/00130 Sec. 371 Date Jul. 24, 1987 Sec. 102(e) Date Jul. 24, 1987 PCT Filed Nov. 20, 1986 PCT Pub. No. WO87/03219 PCT Pub. Date Jun. 4, 1987.A method and apparatus for improving the grinding result of a pressure chamber grinder includes a feeder for feeding material into a pressurized equalizing tank, then transferring the material into a pre-grinder where the material is fluidized by grinding-gas jets. The fluidized material-gas flow is divided by a bisecting device into two component flows and it is accelerated through two accelerating nozzles which are directed toward a impact point of a main grinding chamber. The grinding chamber has an outlet connected to an acceleration tube inlet which is connected at its discharge to a free-flow grinder provided with tangentially directed grinding-gas nozzles. The material which passes through the nozzles is in a ready ground final product form is removed constantly through a centrally located exhaust pipe.

6. 发明专利

JPS60209099A FILLER PIGMENT OR COATING PIGMENT AND ITS PRODUCTION AND PAPER CONTAINING THE SAME 失效
公开(公告)号：JPS60209099A
公开(公告)日：1985-10-21
申请号：JP5562185
申请日：1985-03-19
申请人： KEMIRA OY
发明人： HERUTSUTSURA TETSUPO ANCHI KAR , YUKINEN ORURI YUHANI , REHECHINEN KARI YUHANI , REFUGUREN CHIMO BARUDEMARU
IPC分类号： D21H17/67 , B41M5/124 , C09C1/00 , C09C1/02 , D21H17/68 , D21H19/38 , D21H19/40

7. 发明专利

JPS60155800A PAPER MAKING METHOD 失效
公开(公告)号：JPS60155800A
公开(公告)日：1985-08-15
申请号：JP197085
申请日：1985-01-09
申请人： KEMIRA OY
发明人： YUKINEN ORURI YUHANI , PETANDERU RARUSU HARARUDO , BIRUTA PIRUTSUKO YOHANNA
IPC分类号： D21H17/03 , D21H17/12 , D21H17/33 , D21H17/63 , D21H17/66

8. 发明专利

JPS52128983A PROCESS FOR PREPARING ALKALI CELLULOSE 失效
公开(公告)号：JPS52128983A
公开(公告)日：1977-10-28
申请号：JP2492877
申请日：1977-03-09
申请人： KEMIRA OY
发明人： ERUTSUKI SORUSA , ESUKO HAUTSUKOBUAARA , JIYAN FUORUSU
IPC分类号： C08B1/08

9. 发明专利

JPH06292830A HYDROGENATING CATALYST FOR USE IN HYDROGEN PEROXIDE PROCESS, METHOD FOR PREPARATION THEREOF AND METHOD FOR HYDROGENATING ANTHRAQUINONE OR DERIVATIVE THEREOF 失效
公开(公告)号：JPH06292830A
公开(公告)日：1994-10-21
申请号：JP1523294
申请日：1994-02-09
申请人： KEMIRA OY
发明人： ARUTO PUTSUKINEN , RAURI HEITSUKINEN , RAUNI RUUSUKA
IPC分类号： B01J23/44 , B01J23/56 , B01J23/63 , B01J23/656 , B01J23/89 , B01J37/03 , C01B15/023 , C07C37/07 , C07C39/12 , B01J23/64
摘要： PURPOSE: To obtain an active and long life hydrogenation catalyst for use in hydrogen peroxide process by adding a transition metal to a micro pulverized metal particle containing a noble metal of platinum group, of which more than a specific %, is palladium as a main component. CONSTITUTION: Activity is improved several times by using a noble metal catalyst mixed with at least one kind of transition metal when compared to a noble metal catalyst without mixing. Moreover compared to the noble metal catalyst without mixing, the activity may hold at higher level and for longer period. One kind or more than two kinds of noble metals of platinum group are contained and palladium of more than 50% is preferable as main components. Transition metals such as iron, chromium and nickel are preferable as the mixing component. Mixing of the transition metal to the noble metal group is done by precipitation from solutions or done by a method of impregnation. Further the transition metal may be precipitated at high temperature by plasma technology.

10. 发明专利

JPH05221654A PREPARATION OF MATERIAL 失效
公开(公告)号：JPH05221654A
公开(公告)日：1993-08-31
申请号：JP35515991
申请日：1991-12-20
申请人： NESTE OY , KEMIRA OY
发明人： PETSUKA KUNUUTEIIRA , SHIMO JIYOKIINEN , BESAAPETSUKA JIYUDEIN , JIYUHATSUOMASU BUORISARO , SHIMO SARANNE
IPC分类号： C01G49/10

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