US1630147A - Process for extracting the pure cellulose from the bagasse of sugar cane - Google Patents

Process for extracting the pure cellulose from the bagasse of sugar cane Download PDF

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Publication number
US1630147A
US1630147A US128305A US12830526A US1630147A US 1630147 A US1630147 A US 1630147A US 128305 A US128305 A US 128305A US 12830526 A US12830526 A US 12830526A US 1630147 A US1630147 A US 1630147A
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United States
Prior art keywords
bagasse
solution
pure cellulose
extracting
sugar cane
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 - Lifetime
Application number
US128305A
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English (en)
Inventor
Valet Earnest Charles Hemmer
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from GB2093926A external-priority patent/GB277163A/en
Application granted granted Critical
Publication of US1630147A publication Critical patent/US1630147A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D21C3/26—Multistage processes
    • 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
    • D21C7/00—Digesters

Definitions

  • the present invention refers to a process and apparatus for extracting and separating the pure cellulose from the bagasse of sugar cane, in order to utilize this cellulose in the manufacture of paper, cardboard and similar products.
  • the macerating tanks which as already mentioned may be located at a certain distance from the mills or adjacent to the same, are filled with a clear solution of about 3 to 5% of lime, and the bagasse is left to remain in this solution during a variable time which depends from the system of tanks used and from the temperature of the solu- Q tion, which temperature however should'not In case the bagasse has not been cut up into small lengths before being subjecteditol the treatment with the lime solution, this may be done now before introducing it intothe cooking tanks.
  • a round tank I 1 is provided with twocovers 2 and 3, prefbeinrr united, they may also be placed sepaassuEa Application filed August 9, 1926, Serial N0. 128,305, and in Mexico June 14, 1926.
  • the cooking apparatus is provided with suitable piping 7 for admitting either direct or indirect steam.
  • the bagasse taken out of the macerating tanks, and with a liquid consisting of a solution of about 6% of caustic soda and of asolution of from 2 to 3% of sodium sulphite, in the proportion of about 18 allons of the caustic soda solution and 12 gallons of the sodium sulphite solution, making 30 gallons of both solutions combined, for every 100 pounds of drybagasse.
  • the com-- position of the liquid may further be varied by adding a new solution of 3% of lime,
  • bagasse to be treated which varies with its age and the place where it has been grown.
  • a weak solution of calcium sulphite reducing proportionally the amount of sodium sulphite solution.
  • sodium hypo-sulphite may also be used.
  • This pipe is partly surrounded by a wider tube 10 connected with the lower cover 3, and on top of the steam inlet there is placed a hood 11 having a number of openings, which serves to divert the steam laterally so that it may push before it the solution which enters through the cone 9 and raise it through the pipe 8.
  • a process for extracting the pure cellulose from the bagasse of sugar cane including the step of cutting up the bagasse into small pieces before it undergoes a treatment in boilers.
  • a process for extracting the pure cellulose from the bagasse of sugar cane including the step of adding to the solutions of caustic soda and of sodium salts a solution of 3% of lime in a proportion of about 12 gallons to every 100 pounds of dry bagasse.
  • a process for extracting the pure cellu lose from the bagasse of sugar cane as set forth in claim 3, whereinsto the solutions of caustic soda and of sodium salts during the second step of the process, is added a weak solution of queum sulphite, reducing eventually the quantity of sodium salts employed.

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  • Paper (AREA)
US128305A 1926-06-14 1926-08-09 Process for extracting the pure cellulose from the bagasse of sugar cane Expired - Lifetime US1630147A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX1630147X 1926-06-14
GB2093926A GB277163A (en) 1926-08-25 1926-08-25 A process and apparatus for extracting the pure cellulose from the bagasse of sugar cane

Publications (1)

Publication Number Publication Date
US1630147A true US1630147A (en) 1927-05-24

Family

ID=26254994

Family Applications (2)

Application Number Title Priority Date Filing Date
US17422D Expired USRE17422E (en) 1926-06-14 Pbocess fob extbactino the pube cellulose fbom the bagasse op sugab
US128305A Expired - Lifetime US1630147A (en) 1926-06-14 1926-08-09 Process for extracting the pure cellulose from the bagasse of sugar cane

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US17422D Expired USRE17422E (en) 1926-06-14 Pbocess fob extbactino the pube cellulose fbom the bagasse op sugab

Country Status (4)

Country Link
US (2) US1630147A (en, 2012)
BE (1) BE342857A (en, 2012)
FR (1) FR620897A (en, 2012)
NL (1) NL34937C (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810647A (en) * 1954-12-21 1957-10-22 Valite Corp Process of preparing fiber from pithcontaining plant materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539265A (en) * 1944-09-20 1951-01-23 Dulrae Ltd Electric heating system for buildings and structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810647A (en) * 1954-12-21 1957-10-22 Valite Corp Process of preparing fiber from pithcontaining plant materials

Also Published As

Publication number Publication date
BE342857A (en, 2012)
USRE17422E (en) 1929-09-03
FR620897A (fr) 1927-04-30
NL34937C (en, 2012)

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