公开(公告)号：DE1695861A1

公开(公告)日：1971-05-06

申请号：DE1695861

申请日：1967-05-05

Applicant: STAMICARBON

Inventor： HUBERTUS PECASSE ALBERTUS ,  ENGELBERTUS NELEMANS JOHANNES

IPC: C07D201/16 ,  C07D223/12 ,  C07D41/06

公开(公告)号：DE1668975A1

公开(公告)日：1971-09-23

申请号：DEST027733

申请日：1968-01-04

Applicant: STAMICARBON

Inventor： HUBERTUS PECASSE ALBERTUS ,  BONNEMA JENTJE ,  ALPHONSUS GEURTS GERARDUS

IPC: C07C227/34 ,  C07C20060101 ,  C07C229/26 ,  C07C99/12

Abstract: 1,169,311. Increasing optical purity of Lysine monohydrochloride. STAMICARBON N.V. 1 Jan., 1968 [11 Jan., 1967], No. 94/68. Heading C2C. The optical purity of optically active lysine monohydrochloride containing DL-lysine monohydrochloride is increased by mixing the lysine- HC1 in the solid state with water for a period of time less than that required to effect an equilibrium state, and separating the remaining solid phase from the liquid phase which then contains optically-active lysine HCl of increased optical purity. The mixing is preferably performed at 40-80‹ C. and the solid lysine-HCl may contain water of crystallization. The amount of water used advantageously corresponds to the amount which would be needed to form a saturated or substantially saturated solution of the available pure L- or D-lysine-HCl at a temperature equal to that at which the mixing of the solid lysine-HCl with the water is terminated.

公开(公告)号：DE1695859A1

公开(公告)日：1971-05-06

申请号：DE1695859

申请日：1967-03-30

Applicant: STAMICARBON

Inventor： HUBERTUS PECASSE ALBERTUS ,  ENGELBERTUS NELEMANS JOHANNES

IPC: B01D9/00 ,  C07D41/06

公开(公告)号：FI40542C

公开(公告)日：1969-03-10

申请号：FI40542D

申请日：1960-07-15

Applicant: STAMICARBON

Inventor： ENGELBERTUS NELEMANS JOHANNES ,  HUBERTUS PECASSE ALBERTUS ,  WILLEM PESCH ,  ULRICH VERSTRIJDEN

IPC: C07D41/06

公开(公告)号：DE1445149A1

公开(公告)日：1969-01-23

申请号：DE1445149

申请日：1960-07-14

Applicant: STAMICARBON

Inventor： ENGELBERTUS NELEMANS JOHANNES ,  HUBERTUS PECASSE ALBERTUS ,  PESCH WILLEM ,  VERSTRIJDEN ULRICH

IPC: C07D223/12 ,  C07D41/06