JPH0250237B2 - - Google Patents

Info

Publication number: JPH0250237B2
Authority: JP; Japan
Prior art keywords: pulp; bleaching; ozone; treatment; concentration
Prior art date: 1981-03-12
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.): Expired

Application number

JP3592081A

Other languages

English (en)

Japanese (ja)

Other versions

JPS57154489A (en

Inventor

Pii Shingu Rudora

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.)

Kimberly Clark Tissue Co

Original Assignee

Scott Paper Co

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.)

1981-03-12

Filing date

1981-03-12

Publication date

1990-11-01

1981-03-12 Application filed by Scott Paper Co filed Critical Scott Paper Co

1981-03-12 Priority to JP3592081A priority Critical patent/JPS57154489A/ja

1982-09-24 Publication of JPS57154489A publication Critical patent/JPS57154489A/ja

1990-11-01 Publication of JPH0250237B2 publication Critical patent/JPH0250237B2/ja

Status Granted legal-status Critical Current

Links

CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 80
238000004061 bleaching Methods 0.000 claims description 75
238000011282 treatment Methods 0.000 claims description 52
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
238000000034 method Methods 0.000 claims description 41
230000014759 maintenance of location Effects 0.000 claims description 23
239000002253 acid Substances 0.000 claims description 22
230000002378 acidificating effect Effects 0.000 claims description 20
238000000605 extraction Methods 0.000 claims description 19
239000003513 alkali Substances 0.000 claims description 9
150000002978 peroxides Chemical class 0.000 claims description 9
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 6
238000004076 pulp bleaching Methods 0.000 claims description 5
239000000284 extract Substances 0.000 description 28
238000005406 washing Methods 0.000 description 16
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 14
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 6
239000003518 caustics Substances 0.000 description 5
239000000203 mixture Substances 0.000 description 5
230000000694 effects Effects 0.000 description 4
239000007789 gas Substances 0.000 description 4
239000008246 gaseous mixture Substances 0.000 description 4
239000002655 kraft paper Substances 0.000 description 4
238000003825 pressing Methods 0.000 description 4
235000011121 sodium hydroxide Nutrition 0.000 description 4
239000004155 Chlorine dioxide Substances 0.000 description 3
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
239000007844 bleaching agent Substances 0.000 description 3
235000019398 chlorine dioxide Nutrition 0.000 description 3
229910001882 dioxygen Inorganic materials 0.000 description 3
239000011121 hardwood Substances 0.000 description 3
239000007788 liquid Substances 0.000 description 3
239000001301 oxygen Substances 0.000 description 3
229910052760 oxygen Inorganic materials 0.000 description 3
239000004115 Sodium Silicate Substances 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
230000018044 dehydration Effects 0.000 description 2
238000006297 dehydration reaction Methods 0.000 description 2
238000010586 diagram Methods 0.000 description 2
238000010790 dilution Methods 0.000 description 2
239000012895 dilution Substances 0.000 description 2
239000013505 freshwater Substances 0.000 description 2
238000009897 hydrogen peroxide bleaching Methods 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
229910052911 sodium silicate Inorganic materials 0.000 description 2
239000007787 solid Substances 0.000 description 2
238000004448 titration Methods 0.000 description 2
238000009825 accumulation Methods 0.000 description 1
239000006286 aqueous extract Substances 0.000 description 1
239000008346 aqueous phase Substances 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
238000007865 diluting Methods 0.000 description 1
239000002657 fibrous material Substances 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
238000002156 mixing Methods 0.000 description 1
238000012544 monitoring process Methods 0.000 description 1
238000000643 oven drying Methods 0.000 description 1
238000006385 ozonation reaction Methods 0.000 description 1
238000011084 recovery Methods 0.000 description 1
239000000243 solution Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1

Landscapes

Paper (AREA)

JP3592081A 1981-03-12 1981-03-12 Pulp bleaching method Granted JPS57154489A (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP3592081A JPS57154489A (en)	1981-03-12	1981-03-12	Pulp bleaching method

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP3592081A JPS57154489A (en)	1981-03-12	1981-03-12	Pulp bleaching method

Publications (2)

Publication Number	Publication Date
JPS57154489A JPS57154489A (en)	1982-09-24
JPH0250237B2 true JPH0250237B2 (pt)	1990-11-01

Family

ID=12455461

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP3592081A Granted JPS57154489A (en)	1981-03-12	1981-03-12	Pulp bleaching method

Country Status (1)

Country	Link
JP (1)	JPS57154489A (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2002069879A (ja) *	2000-09-04	2002-03-08	Nippon Paper Industries Co Ltd	セルロース質繊維材料のパルプの漂白方法
JP2002266272A (ja) *	2001-03-12	2002-09-18	Nippon Paper Industries Co Ltd	セルロース質繊維材料パルプの漂白方法

1981
- 1981-03-12 JP JP3592081A patent/JPS57154489A/ja active Granted

Also Published As

Publication number	Publication date
JPS57154489A (en)	1982-09-24

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