公开(公告)号：JP2006342328A

公开(公告)日：2006-12-21

申请号：JP2006092020

申请日：2006-03-29

Applicant: TORAY INDUSTRIES

Inventor： MORITA SHOJI ,  TOMASHINO KATSUHIKO

IPC: C11C3/10 ,  C07B61/00 ,  C07C27/02 ,  C07C29/128 ,  C07C31/22 ,  C07C67/03 ,  C07C69/24 ,  C07C69/533

Abstract: PROBLEM TO BE SOLVED: To provide a simple method for production with which a high-purity product (a fatty acid ester or glycerol) is obtained at a low cost/high reaction efficiency without requiring a step of separating a catalyst. SOLUTION: The method for producing the fatty acid ester from oils and fats and a monohydric alcohol comprises using a chemical catalyst. In the method, the excessive monohydric alcohol in a state of superheated vapor is continuously fed to a reaction system and subjected to a transesterification with the oils and fats. The resultant reaction product containing the fatty acid ester in a state of a vapor phase or a mixed phase accompanying a droplet-like phase thereof is continuously taken out together with the superheated vapor of the monohydric alcohol. Thereby, the fatty acid ester is separated and recovered. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JPH1033993A

公开(公告)日：1998-02-10

申请号：JP19224096

申请日：1996-07-22

Applicant: TORAY INDUSTRIES

Inventor： MORITA SHOJI ,  YAMAMOTO HARUYOSHI

IPC: B01J49/00

Abstract: PROBLEM TO BE SOLVED: To regenerate ion exchange resin which is organically contaminated by a simple method by bringing the ion exchange resin into contact with a water-containing polar solvent in which table salt is dissolved. SOLUTION: When a trace of weak basic organic component such as aniline contained in a polar liquid such as ε-caprolactam containing water is removed by adsorption using ion exchange resin, the adsorptivity of the ion exchange resin is deteriorated by organic contamination, if used for a long time. In this case, this ion exchange resin with deteriorated performance is brought into contact with a water-containing polar solvent such as an aqueous lactam solution or an aqueous dimethylsulfoxide solution, in which table salt is dissolved in order to regenerate the ion exchange resin with deteriorated performance. The concentration of the table salt dissolved in the solution is 0.1-20wt.%. Further, after the ion exchange resin is previously brought into contact with the aqueous table salt solution, the resin is brought into contact with the polar solvent in which the table salt is dissolved. Thus it is possible to reduce cost involved in the replacement of the ion exchange resin by the above simple regeneration method and whittle down the generation of industrial waste.

公开(公告)号：JPH07196890A

公开(公告)日：1995-08-01

申请号：JP33812893

申请日：1993-12-28

Applicant: TORAY INDUSTRIES

Inventor： KUNITOMI MASAKI ,  MORITA SHOJI ,  NAKAJIMA TAKAFUMI

IPC: C08K5/00 ,  C08K5/09 ,  C08K5/13 ,  C08K5/17 ,  C08L59/00

Abstract: PURPOSE:To obtain a polyacetal resin composition excellent in heat stability and molding characteristics by specifying the content of each of formaldehyde, moisture, formic acid and methanol based on a polyacetal resin. CONSTITUTION:This composition consists of a polyacetal resin, at most 100ppm by weight of formaldehyde, at most 500ppm by weight of moisture, at most 100ppm formic acid and at most 50ppm methanol. To produce the composition, a process is preferably employed wherein a crude polymer of polyacetal resin after polymerization is melt kneaded, if necessary, together with additives such as a catalyst deactivator, a heat stabilizer and a formaldehyde acceptor to form pellets and the pelletized resin composition (pellets) is treated through a ventilated dryer to remove volatile components.

公开(公告)号：JPH1036332A

公开(公告)日：1998-02-10

申请号：JP19223896

申请日：1996-07-22

Applicant: TORAY INDUSTRIES

Inventor： MORITA SHOJI ,  YAMAMOTO HARUYOSHI

IPC: C07D201/06 ,  C07C251/46

Abstract: PROBLEM TO BE SOLVED: To remove water contained in a cyclohexanone oxime hydrochloride oily substance to be supplied to a Beckmann's rearrangement reaction. SOLUTION: Cyclohexanone oxime hydrochloride salt is mixed with an organic solvent (e.g. a halogenated hydrocarbon, chloroform, or 1,2- dichloroethane) poor in compatibility with water and large in compatibility with the cyclohexanone oxime hydrochloride and subsequently subjected to an azeotropic distillation treatment to separate and remove water contained in the salt.

公开(公告)号：JPH09227510A

公开(公告)日：1997-09-02

申请号：JP3961696

申请日：1996-02-27

Applicant: TORAY INDUSTRIES

Inventor： KITAMURA SATORU ,  KANAI AYAKO ,  MORITA SHOJI

IPC: C07D201/16 ,  C07B63/00

Abstract: PROBLEM TO BE SOLVED: To enable efficient lactam production by recycling the rearrangement catalyst without its deactivation. SOLUTION: After the liquid-phase Beckmann rearrangement of an oxime, for example, using hydrogen chloride as a catalyst, the formed lactam (suitably ε-caprolactam) is crystallized out and isolated in the form of its hydrochloride, while the reaction mother liquor containing the catalyst is recycled. In order to inhibit the catalyst from being deactivated, the compounds to be used as raw materials are sufficiently dried, preferably the amount of water in the reaction system is ad justed to less than 1 mole per mole of the catalyst and the rearrangement reaction is carried out at

公开(公告)号：JPH09227509A

公开(公告)日：1997-09-02

申请号：JP2835496

申请日：1996-02-16

Applicant: TORAY INDUSTRIES

Inventor： KITAMURA SATORU ,  KANAI AYAKO ,  MORITA SHOJI

IPC: C07D201/04 ,  B01J27/10 ,  B01J27/14 ,  B01J31/02 ,  C07B61/00 ,  C07C231/10 ,  C07C233/04 ,  C07C233/65

Abstract: PROBLEM TO BE SOLVED: To produce an amide in high yield by rearranging an oxime in the presence of hydrogen chloride, an N,N-di-substituted amide and an acid halide at a high reaction rate under a mild temperature condition. SOLUTION: An oxime is subjected to rearrangement in the presence of HCl, a compound of the formula (R and R are identical or different from each other, each an alkyl, a substituted phenyl; R is an alkyl, H), typically N,N-di-substituted amide such as dimethylformamide and an acid halide, for example, an acid chloride such as phosphorus pentachloride to produce an amide. In the production, HCl, the N,N-disubstituted amide and an acid halide are used in amounts of 0.0001 mole, 0.0001-100 moles and 0.0001-1 mole per mole of oxime, respectively. The reaction is usually carried out at about 0-200 deg.C. In addition, in the case that the acid halide is an acid chloride, more than 1 molar amounts of HCl and the N,N-disubstituted amide are used per mole of the acid chloride as rearrangement catalysts.

公开(公告)号：JPH1036344A

公开(公告)日：1998-02-10

申请号：JP19223996

申请日：1996-07-22

Applicant: TORAY INDUSTRIES

Inventor： KITAMURA SATORU ,  KANAI AYAKO ,  MORITA SHOJI

IPC: C07D201/16

Abstract: PROBLEM TO BE SOLVED: To efficiently separate a lactam in an amide by the coexistence of an amine with an equimolar amount or more of hydrogen chloride. SOLUTION: When the number of mol of an N,N-disubstituted amide such as N,N-dimethylformamide is A, the number of mol of hydrogen chloride is X and the number of mold of a lactam such as ε-caprolactam is B, the hydrogen chloride is made to coexist in a number of mol satisfying the relationship of the formula A