公开(公告)号：EP0981533A1

公开(公告)日：2000-03-01

申请号：EP98906963.8

申请日：1998-03-02

申请人： Xyrofin Oy

发明人： NURMI, Juha ,  KAIRA, Miikka

IPC分类号： C07H15/04

CPC分类号： C07H15/04

摘要： The present invention relates to a process for the production of structurally pure lactitol crystal forms selected from the group consisting of lactitol anhydride, lactitol monohydrate, lactitol dihydrate and lactitol trihydrate. The crystallization is performed by cooling a lactitol solution from a temperature at or slightly below the highest temperature of the stability area of the respective crystalline lactitol form to a temperature at or slightly above the lowest temperature of the stability area of said crystalline lactitol form, said stability areas being defined, respectively, within the temperature limits of 100 °C and 0 °C by the intersections of the solubility lines shown in Fig. 1, and by maintaining the supersaturation of said lactitol solution at a level of 1 to 8 % (w/w) above the solubility line of the respective lactitol form crystallizing in said area.

公开(公告)号：EP0454702B1

公开(公告)日：1996-04-10

申请号：EP90901592.7

申请日：1990-01-15

申请人： XYROFIN OY

发明人： HEIKKILÄ, Heikki ,  NURMI, Juha ,  RAHKILA, Leena ,  TÖYRYLÄ, Marja

IPC分类号： C12P19/02 ,  C12P7/18

CPC分类号： C12P7/18 ,  C12R1/645 ,  C12R1/74 ,  Y10S435/80 ,  Y10S435/803 ,  Y10S435/911 ,  Y10S435/924

摘要： A method is disclosed for the production of xylitol from a xylose and/or xylan containing material. A solution containing xylitol and other hexoses is fermented with a yeast strain capable of converting free xylose to xylitol and other free hexoses present to ethanol, with the xylitol subsequently separated by chromatographic separation means.

公开(公告)号：EP0576473A1

公开(公告)日：1994-01-05

申请号：EP92906369.0

申请日：1992-03-19

申请人： XYROFIN OY

发明人： HEIKKILÄ, Heikki ,  NURMI, Juha ,  PEPPER, Tammy

IPC分类号： A23G1 ,  A23G3 ,  A23G9 ,  A23L1 ,  C07H15

CPC分类号： A23G3/346 ,  A23G1/56 ,  A23G9/52 ,  A23G2200/06 ,  C07H15/04

摘要： PCT No. PCT/FI92/00077 Sec. 371 Date Jan. 6, 1994 Sec. 102(e) Date Jan. 6, 1994 PCT Filed Mar. 19, 1992 PCT Pub. No. WO92/16542 PCT Pub. Date Jan. 10, 1992.The invention relates to a novel crystalline anhydrous lactitol, a process for the preparation thereof, and the use thereof. The novel crystalline anhydrous lactitol belongs to the monoclinic crystal system and has the unit cell constants: (a)=7.614 A; (b)=10.757 A; (c)=9.370 A and beta =108.2 DEG . Its melting point is between 149 DEG C. and 152 DEG C., water content below 0.5% and lactitol content more than 99%; it has a low hygroscopicity.

公开(公告)号：EP1019547B1

公开(公告)日：2002-01-02

申请号：EP96904108.6

申请日：1996-03-01

申请人： XYROFIN OY

发明人： NURMI, Juha ,  EROMA, Olli-Pekka ,  ERIKSSON, Kristian

IPC分类号： C13K13/00 ,  C13F1/02 ,  B01D9/02

CPC分类号： C13B30/02 ,  B01D9/0004 ,  B01D9/0036 ,  C13B30/06 ,  C13K1/08 ,  C13K5/00 ,  C13K13/002

摘要： The invention relates to a method for recovering a crystallizable organic compound from solutions containing said compound. In accordance with the method, the compound is crystallized substantially by way of nucleation from a solution having high viscosity and high supersaturation in respect of the compound to be recovered, and the formed crystals are recovered.

公开(公告)号：EP0820527B1

公开(公告)日：2001-10-31

申请号：EP96904107.8

申请日：1996-03-01

申请人： XYROFIN OY

发明人： LINDROOS, Mirja ,  HEIKKILÄ, Heikki ,  NURMI, Juha

IPC分类号： C13K13/00 ,  C13F1/02

CPC分类号： C13B30/02 ,  B01D9/0004 ,  B01D9/0036 ,  C13B30/06 ,  C13K1/08 ,  C13K5/00 ,  C13K13/002

摘要： PCT No. PCT/FI95/00327 Sec. 371 Date Oct. 11, 1996 Sec. 102(e) Date Oct. 11, 1996 PCT Filed Jun. 7, 1995The invention relates to a method for the recovery of xylose from xylose-containing aqueous solutions containing 30-60% by weight of xylose on dissolved solids, in which method the solution is treated to produce a solution supersaturated with xylose, xylose is crystallized from the supersaturated solution and the xylose crystals are recovered.

公开(公告)号：EP0576473B1

公开(公告)日：1997-04-16

申请号：EP92906369.1

申请日：1992-03-19

申请人： XYROFIN OY

发明人： HEIKKILÄ, Heikki ,  NURMI, Juha ,  PEPPER, Tammy

IPC分类号： C07H15/04

CPC分类号： A23G3/346 ,  A23G1/56 ,  A23G9/52 ,  A23G2200/06 ,  C07H15/04

摘要： PCT No. PCT/FI92/00077 Sec. 371 Date Jan. 6, 1994 Sec. 102(e) Date Jan. 6, 1994 PCT Filed Mar. 19, 1992 PCT Pub. No. WO92/16542 PCT Pub. Date Jan. 10, 1992.The invention relates to a novel crystalline anhydrous lactitol, a process for the preparation thereof, and the use thereof. The novel crystalline anhydrous lactitol belongs to the monoclinic crystal system and has the unit cell constants: (a)=7.614 A; (b)=10.757 A; (c)=9.370 A and beta =108.2 DEG . Its melting point is between 149 DEG C. and 152 DEG C., water content below 0.5% and lactitol content more than 99%; it has a low hygroscopicity.

公开(公告)号：EP1019547A1

公开(公告)日：2000-07-19

申请号：EP96904108.6

申请日：1996-03-01

申请人： XYROFIN OY

发明人： NURMI, Juha ,  EROMA, Olli-Pekka ,  ERIKSSON, Kristian

IPC分类号： C13K13/00 ,  C13F1/02 ,  B01D9/02

CPC分类号： C13B30/02 ,  B01D9/0004 ,  B01D9/0036 ,  C13B30/06 ,  C13K1/08 ,  C13K5/00 ,  C13K13/002

摘要： The invention relates to a method for recovering a crystallizable organic compound from solutions containing said compound. In accordance with the method, the compound is crystallized substantially by way of nucleation from a solution having high viscosity and high supersaturation in respect of the compound to be recovered, and the formed crystals are recovered.

公开(公告)号：EP0454702A1

公开(公告)日：1991-11-06

申请号：EP90901592.0

申请日：1990-01-15

申请人： SUOMEN XYROFIN OY

发明人： HEIKKILÄ, Heikki ,  NURMI, Juha ,  RAHKILA, Leena ,  TÖYRYLÄ, Marja

IPC分类号： C12P ,  C12N1 ,  C12P7 ,  C12R1

CPC分类号： C12P7/18 ,  C12R1/645 ,  C12R1/74 ,  Y10S435/80 ,  Y10S435/803 ,  Y10S435/911 ,  Y10S435/924

摘要： A method is disclosed for the production of xylitol from a xylose and/or xylan containing material. A solution containing xylitol and other hexoses is fermented with a yeast strain capable of converting free xylose to xylitol and other free hexoses present to ethanol, with the xylitol subsequently separated by chromatographic separation means.

公开(公告)号：EP1131329A1

公开(公告)日：2001-09-12

申请号：EP99955994.1

申请日：1999-11-15

申请人： XYROFIN OY

发明人： JUMPPANEN, Juho ,  NURMI, Juha ,  PASTINEN, Ossi

IPC分类号： C07H3/02

CPC分类号： C07H3/02

摘要： A process of preparing a L-ribose fraction having greater than 97% purity starting from an aqueous solution of L-arabinose is provided by utilizing an epimerization reaction conducted in the presence of a Mo compound and eluting the product formed by said epimerization reaction through a separation zone containing a strong acid cation exchange resin. A process of crystallized said L-ribose fraction under conditions effective to form monohydrate L-ribose crystals is also disclosed.

公开(公告)号：EP0983392A1

公开(公告)日：2000-03-08

申请号：EP98917177.2

申请日：1998-05-04

申请人： XYROFIN OY

发明人： NURMI, Juha ,  EROMA, Olli-Pekka

IPC分类号： C13K13/00 ,  C13F1/02

CPC分类号： C13B30/002 ,  C13B30/02 ,  C13B30/06 ,  C13K13/002

摘要： The invention relates to a method for the recovery of xylose from xylose-containing aqueous solutions that contain over 30 % by weight of xylose on dissolved dry solids. The solution is evaporated at low pressure to a solution supersaturated in respect of xylose, the solution is seeded, and the evaporation is continued at the boiling point of the solution until a crystal mass is obtained in which the xylose yield is 1 to 60 %, and the xylose crystals are recovered.