GB761356A - Improvements in or relating to the manufacture of paper pulp from straw or other fibrous material - Google Patents

Improvements in or relating to the manufacture of paper pulp from straw or other fibrous material

Info

Publication number
GB761356A
GB761356A GB11923/53A GB1192353A GB761356A GB 761356 A GB761356 A GB 761356A GB 11923/53 A GB11923/53 A GB 11923/53A GB 1192353 A GB1192353 A GB 1192353A GB 761356 A GB761356 A GB 761356A
Authority
GB
United Kingdom
Prior art keywords
tank
black liquor
passes
pulp
tanks
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.)
Expired
Application number
GB11923/53A
Inventor
Henry Currie
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.)
Millspaugh Ltd
Original Assignee
Millspaugh Ltd
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 Millspaugh Ltd filed Critical Millspaugh Ltd
Priority to GB11923/53A priority Critical patent/GB761356A/en
Publication of GB761356A publication Critical patent/GB761356A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F11/00—Other organic fertilisers
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • C05F7/02—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses from sulfite liquor or other waste lyes from the manufacture of cellulose
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

Paper pulp is manufactured from straw or the like by cooking with caustic potash, the resulting black liquor being concentrated and treated with sulphuric, nitric or phosphoric acid, or mixtures thereof, to yield corresponding potassium salts, which may be used as fertilizer, either as formed in solution or after evaporation to dryness. Alternatively, the black liquor may be evaporated and calcined, the calcined ash being treated with the acid. Other fertilizer constituents may be added to the black liquor. As shown in the flow dia <PICT:0761356/IV(a)/1> gram, chopped straw from the hopper 1 and caustic potash solution from tank 3 are fed to digester 2. After digestion the mixture is blown into dump tank 4 from which steam is condensed at 5, black liquor is drained off at 6 to storage tank 7 and drained pulp is dumped into stock tanks 8 and thence to pulp washers 9. Wash water, pre-heated by condenser 5, after pulp washing passes to de-foaming tank 11 and may be re-circulated. Strong black liquor from tank 7, which may be used to make up the lye in tank 3, passes to evaporators 13, is mixed with appropriate acids from tanks 14 and passes to de-gassing trays 15 and reaction tanks 16, fitted with stirrers. In tanks 16 chalk or whiting may be added. The liquor is stored in tank 19 and passes to a film drier 20, mill 21 and is bagged at 22. Specification 702,025, [Group VIII], is referred to.ALSO:<PICT:0761356/III/1> Paper pulp is manufactured from straw or the like by cooking with caustic potash, the resulting black liquor being concentrated and treated with sulphuric, nitric or phosphoric acid, or mixtures thereof, to yield corresponding potassium salts, which may be used as fertiliser, either as formed in solution or after evaporation to dryness. Alternatively, the black liquor may be evaporated and calcined, the calcined ash being treated with the acid. Other fertilizer constituents may be added to the black liquor. As shown in the flow diagram, chopped straw from the hopper 1 and caustic potash solution from tank 3 are fed to digester 2. After digestion the mixture is blow into dump tank 4 from which steam is condensed at 5, black liquor is drained off at 6 to storage tank 7 and drained pulp is dumped into stock tanks 8 and thence to pulp washers 9. Wash water, pre-heated by condenser 5, after pulp washing passes to de-foaming tank 11 and may be recirculated. Strong black liquor from tank 7, which may be used to make-up the lye in tank 3, passes to evaporators 13, is mixed with appropriate acids from tanks 14 and passes to degassing trays 15 and reaction tanks 16, fitted with stirrers. In tank 16 chalk or whiting may be added. The liquor is stored in tank 19 and passes to a film drier 20, mill 21 and is bagged at 22. Specification 702,025 [Group VIII] is referred to.
GB11923/53A 1953-04-30 1953-04-30 Improvements in or relating to the manufacture of paper pulp from straw or other fibrous material Expired GB761356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11923/53A GB761356A (en) 1953-04-30 1953-04-30 Improvements in or relating to the manufacture of paper pulp from straw or other fibrous material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11923/53A GB761356A (en) 1953-04-30 1953-04-30 Improvements in or relating to the manufacture of paper pulp from straw or other fibrous material

Publications (1)

Publication Number Publication Date
GB761356A true GB761356A (en) 1956-11-14

Family

ID=9995118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11923/53A Expired GB761356A (en) 1953-04-30 1953-04-30 Improvements in or relating to the manufacture of paper pulp from straw or other fibrous material

Country Status (1)

Country Link
GB (1) GB761356A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000060160A1 (en) * 1999-04-06 2000-10-12 Chempolis Oy Process for producing cellulose pulp and fertiliser containing potassium
CN105297517A (en) * 2015-09-21 2016-02-03 宁夏紫荆花纸业有限公司 Method for producing organic fertilizer with black liquor extracted from corn straws pretreated by biological enzyme
EP2917167A4 (en) * 2012-11-06 2016-07-20 Cennatek Process and system for producing inorganic fertilizer and biomass fiber
CN106631392A (en) * 2016-11-29 2017-05-10 宁夏紫荆花纸业有限公司 Method of using black liquid extracted during pulping of corn straw through bioenzyme pretreatment and potassium hydroxide alkaline process to produce potassium fulvate organic fertilizer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000060160A1 (en) * 1999-04-06 2000-10-12 Chempolis Oy Process for producing cellulose pulp and fertiliser containing potassium
US6503369B2 (en) 1999-04-06 2003-01-07 Chempolis Oy Process for producing cellulose and fertilizer by-product
EP2917167A4 (en) * 2012-11-06 2016-07-20 Cennatek Process and system for producing inorganic fertilizer and biomass fiber
US9611183B2 (en) 2012-11-06 2017-04-04 Bioline Corporation Process and system for producing inorganic fertilizer and biomass fiber
CN105297517A (en) * 2015-09-21 2016-02-03 宁夏紫荆花纸业有限公司 Method for producing organic fertilizer with black liquor extracted from corn straws pretreated by biological enzyme
CN106631392A (en) * 2016-11-29 2017-05-10 宁夏紫荆花纸业有限公司 Method of using black liquid extracted during pulping of corn straw through bioenzyme pretreatment and potassium hydroxide alkaline process to produce potassium fulvate organic fertilizer

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