GB208751A - Improvements in or relating to the manufacture of cellulose - Google Patents

Improvements in or relating to the manufacture of cellulose

Info

Publication number
GB208751A
GB208751A GB2342122A GB2342122A GB208751A GB 208751 A GB208751 A GB 208751A GB 2342122 A GB2342122 A GB 2342122A GB 2342122 A GB2342122 A GB 2342122A GB 208751 A GB208751 A GB 208751A
Authority
GB
United Kingdom
Prior art keywords
liquid medium
cellulose
gas
liquid
carbonate
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
GB2342122A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2342122A priority Critical patent/GB208751A/en
Publication of GB208751A publication Critical patent/GB208751A/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
    • D21C3/22—Other features of pulping processes

Landscapes

  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Paper (AREA)

Abstract

208,751. Thornley, F. C., Tapping, F. F., and Reynard, O. Aug. 29, 1922. Pulp, preparation of.-In a process for obtaining cellulose from vegetable materials, for example saw dust, wood waste, rushes, bamboos, sea weed, &c., in which the material is treated with sulphur dioxide gas in a liquid medium, the gas is used in a finely divided state produced mechanically by intense agitation. The liquid medium may be lime water, milk of lime, a soluble alkaline carbonate, or the oxide, hydroxide, or carbonate of an alkaline earth suspended in water, the suspended or dissolved substance acting as a carrier for the sulphur dioxide. In an example, 1 ton of vegetable matter mixed with 4 tons of liquid medium is agitated for 2-12 hours by a screw propeller in a gas-tight pan while 100-200 lbs. SO2 per ton of material is led in through the bottom of the pan at a temperature of about 100‹ C. The liquid medium contains preferably 17-34 pounds of magnesium carbonate per 100 gallons liquid. The product obtained consists of a solid portion consisting mainly of cellulose and a small liquid portion containing the non cellulose constituencies with only a small proportion of mineral matter.
GB2342122A 1922-08-29 1922-08-29 Improvements in or relating to the manufacture of cellulose Expired GB208751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2342122A GB208751A (en) 1922-08-29 1922-08-29 Improvements in or relating to the manufacture of cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2342122A GB208751A (en) 1922-08-29 1922-08-29 Improvements in or relating to the manufacture of cellulose

Publications (1)

Publication Number Publication Date
GB208751A true GB208751A (en) 1923-12-31

Family

ID=10195336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2342122A Expired GB208751A (en) 1922-08-29 1922-08-29 Improvements in or relating to the manufacture of cellulose

Country Status (1)

Country Link
GB (1) GB208751A (en)

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