公开(公告)号：JPH045779B2

公开(公告)日：1992-02-03

申请号：JP30637586

申请日：1986-12-24

Applicant: TORAY INDUSTRIES

Inventor： SHIROMOTO YOSHITAKE ,  TOKUOKA YOSHIKAZU

IPC: D06B3/04

公开(公告)号：JPS63159571A

公开(公告)日：1988-07-02

申请号：JP30637586

申请日：1986-12-24

Applicant: TORAY INDUSTRIES

Inventor： SHIROMOTO SHIGETAKE ,  TOKUOKA YOSHIKAZU

IPC: D06B3/04

公开(公告)号：JPH08246222A

公开(公告)日：1996-09-24

申请号：JP4746995

申请日：1995-03-07

Applicant: TORAY INDUSTRIES

Inventor： GOTO HIDEMI ,  TOKUOKA YOSHIKAZU ,  OGUSHI TAKAHIRO

IPC: D01D5/06

Abstract: PURPOSE: To provide the subject apparatus suppressing randomization of flow of whole bath liquid and capable of preventing confounding by arranging flow- uniformizing plates along the bath side faces and the bath bottom face of a bath. CONSTITUTION: Flow-uniformizing plates 6 and 7 are arranged along a yarn route of synthetic fiber bundles 1 substantially parallel to the side faces 8 and the bottom face 9 of a bath. An accompanied flow of a bath liquid 4 generated by passing of the fiber bundles inside the bath is reflected on a taking out side wall face, flows between the plates and the bath faces, returns to a feeding side and the flow of the bath liquid is controlled to suppress dispersing of the fiber bundles.

公开(公告)号：JPH0457925A

公开(公告)日：1992-02-25

申请号：JP16758790

申请日：1990-06-26

Applicant: TORAY INDUSTRIES

Inventor： SHIRAKATA MORIAKI ,  ICHIKAWA SEISHIRO ,  TOKUOKA YOSHIKAZU

IPC: D01F6/18 ,  D01F9/22 ,  D01F11/06 ,  D02J13/00

Abstract: PURPOSE:To obtain the title precursor having excellent reeling properties and productivity, by attaching a finishing oil to acrylonitrile-based yarn tow comprising drawn filaments, winding and heat-treating at a specific temperature for a specific time. CONSTITUTION:For example, an acrylonitrile-based polymer comprising >=85wt.% acrylonitrile is spun and drawn to give acrylonitrile-based yarn tow having >=1,000 filaments, which is provided with preferably >=0.05wt.% finishing oil (e.g. polybutene), wound and heat-treated in an atmosphere at 60-120 deg.C, preferably 70-100 deg.C for at least 6 hours, preferably 7-24 hours to give the objective precursor.

公开(公告)号：JPH08158150A

公开(公告)日：1996-06-18

申请号：JP29122594

申请日：1994-11-25

Applicant: TORAY INDUSTRIES

Inventor： TOKUOKA YOSHIKAZU ,  OGUSHI TAKAHIRO ,  YOSHIMURA YASUTAKA

IPC: D01F6/18 ,  D01D5/06

Abstract: PURPOSE: To raise the drawability of an acrylic fiber bundle and improve the productivity of acrylic fiber by preheating the fiber bundle through showering of a bath liquor prior to introducing into the drawing bath. CONSTITUTION: When an acrylic fiber bundle is to be drawn at two stages or more in a bath, at the 2nd stage or thereafter, a before the acrylic fiber bundle 1 is introduced into a drawing bath 4 and immersed in the bath liquor at t deg.C, a part of the bath liquor is fed via a circulating pump 5 to a showering liquid temperature regulator 7 to control the showering liquid temperature Ts deg.C so as to satisfy the relationship: t

公开(公告)号：JPS54108462A

公开(公告)日：1979-08-25

申请号：JP1578878

申请日：1978-02-14

Applicant: TORAY INDUSTRIES

Inventor： SAKURAI YUUZOU ,  TOKUOKA YOSHIKAZU ,  MATSUMURA TERUICHIROU

IPC: C02F1/74

Abstract: PURPOSE:To provide a method of treating waste water containing substance to be oxidized which does not corrode by wet oxidizing the waste water under the condition of initial pH of 12 or higher by employing catalyst prepared by adding copper compound to hydroxide alkaline aqueous solution. CONSTITUTION:Waste water is reacted in liquid phase under the conditions of pH of 12 or higher at higher than 100 deg.C. before wet oxidation reaction with catalyst of purple or blue aqueous solution obtained by adding copper compound to hydroxide alkaline aqueous solution in the waste water containing substance to be oxidized for producing separated acid by oxidation such as, for example, organic compound containing sulfur contained compound such as thioalcohol, chlorine such as chloroform. Since the reaction is conducted under alkaline condition, the material of the device is not corroded.

公开(公告)号：JPH08246284A

公开(公告)日：1996-09-24

申请号：JP4547195

申请日：1995-03-06

Applicant: TORAY INDUSTRIES

Inventor： OGUSHI TAKAHIRO ,  TOKUOKA YOSHIKAZU ,  TAMAI HIDEO

IPC: D01F6/18 ,  D01D5/12 ,  D02J1/22

Abstract: PURPOSE: To stably draw an acrylic yarn without causing mal operation by the occurrence of fluff and the winding of yarn on a roller by preheating the acrylic yarn with steam and drawing the yarn with steam. CONSTITUTION: Spun yarn of an acrylic polymer comprising >=90wt.% acrylonitrile is drawn in a bath, imparted with a silicone-based finishing oil, dried and densified through a hot roller. Then the yarn 4 is sent through a feed roller 6 to a steam box 1, preheated under 0.5-1.5kg/cm , preferably 0.7-1.2kg/cm steam pressure, guided to a steam tube 9 having both ends labyrinth-sealed and subjected to fixed drawing treatment in pressurized steam.

公开(公告)号：JPS5493669A

公开(公告)日：1979-07-24

申请号：JP14938377

申请日：1977-12-14

Applicant: TORAY INDUSTRIES

Inventor： SAKURAI YUUZOU ,  TOKUOKA YOSHIKAZU ,  MATSUMURA TERUICHIROU

IPC: C02F1/74

Abstract: PURPOSE:To convert thiocyanate ion, thiosulfuric acid radical and free sulfur etc. to sulfuric acid radical and to prevent corrosion of reactor material, by carrying out oxidation reaction of desulfurized waste liquid at a fixed temperature adding a fixed amount of copper and ammonia water. CONSTITUTION:Metallic copper, copper alloy or copper sulfate etc. and ammonia water, are added to desulfurized waste liquid so as the concentration of copper in waste liquid to be less than 50 ppm. Next, wet process oxidation reaction is carried out under the condition maintaining at least a part of the liquid in liquid phase by supplying oxygen etc. at more than 150 deg.C of reaction temperature. Hereby, all of thiocyanate ion, thiosulfuric acid radical, free sulfur in the waste liquid, are converted to sulfuric acid radical. By the above method, good conversion rate is able to obtain at about 5 ppm of copper concentration and low reaction temperature. Gas is separated from liquid in the waste liquid after treatment and waste gas is discharged in the atmosphere. Liquid is discharged as it is, because COD and copper ion concentration, are low.