JPS55112389A - Bleaching of preoxidized paper pulp - Google Patents

Bleaching of preoxidized paper pulp

Info

Publication number
JPS55112389A
JPS55112389A JP9741179A JP9741179A JPS55112389A JP S55112389 A JPS55112389 A JP S55112389A JP 9741179 A JP9741179 A JP 9741179A JP 9741179 A JP9741179 A JP 9741179A JP S55112389 A JPS55112389 A JP S55112389A
Authority
JP
Japan
Prior art keywords
preoxidized
bleaching
paper pulp
pulp
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9741179A
Other languages
Japanese (ja)
Inventor
Karuru Jiyatsuku
Jiyuran Mishieru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRP DANTERE ZEKONOMITSUKU DEI
Original Assignee
GRP DANTERE ZEKONOMITSUKU DEI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GRP DANTERE ZEKONOMITSUKU DEI filed Critical GRP DANTERE ZEKONOMITSUKU DEI
Publication of JPS55112389A publication Critical patent/JPS55112389A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M3/137—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/139—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Paper (AREA)
JP9741179A 1978-08-01 1979-08-01 Bleaching of preoxidized paper pulp Pending JPS55112389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7822729A FR2432733A1 (en) 1978-08-01 1978-08-01 Digitally controlling thyristor DC converters - by controlling thyristors conductive duration using time shifted and constant pulse trains provided by decoder networks

Publications (1)

Publication Number Publication Date
JPS55112389A true JPS55112389A (en) 1980-08-29

Family

ID=9211447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9741179A Pending JPS55112389A (en) 1978-08-01 1979-08-01 Bleaching of preoxidized paper pulp

Country Status (2)

Country Link
JP (1) JPS55112389A (en)
FR (1) FR2432733A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04222286A (en) * 1990-11-30 1992-08-12 Oji Paper Co Ltd Method for bleaching lignocellulosic substance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04222286A (en) * 1990-11-30 1992-08-12 Oji Paper Co Ltd Method for bleaching lignocellulosic substance

Also Published As

Publication number Publication date
FR2432733A1 (en) 1980-02-29
FR2432733B1 (en) 1981-01-30

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