GB280629A - A new or improved process of manufacturing pulp for paper production - Google Patents

A new or improved process of manufacturing pulp for paper production

Info

Publication number
GB280629A
GB280629A GB20235/26A GB2023526A GB280629A GB 280629 A GB280629 A GB 280629A GB 20235/26 A GB20235/26 A GB 20235/26A GB 2023526 A GB2023526 A GB 2023526A GB 280629 A GB280629 A GB 280629A
Authority
GB
United Kingdom
Prior art keywords
pulp
per cent
solution
atmospheres
pectin
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
GB20235/26A
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 GB20235/26A priority Critical patent/GB280629A/en
Priority to US146575A priority patent/US1679441A/en
Publication of GB280629A publication Critical patent/GB280629A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

280,629. Nanji, D. R. Aug. 17, 1926. Pulp, preparation of.-In the preparation of pulp, for paper making and the like, from plant, woody, and other cellulosic material an alkaline solution of up to 4 per cent strength is used and the material heated therewith to high temperaures at high pressure approximating to 10 atmospheres for about half an hour. By this treatment the material is delignified and the product may be readily bleached. Materials containing pectins and sugars are first treated with a pectin solvent such a dilute solution of a salt of an alkali, or of ammonia, in order to avoid staining. Impure celluloses obtained by other methods, such as sulphite pulp, soda pulp, or the like may be treated. In treating bagasse from sugar cane, the fibres are first disintegrated by crushing rollers, and the mass mixed with 4 per cent caustic soda solution and heated to 185‹ C. for about 1 hour. The sugar and pectin in the bagasse may first be removed with a 0.5 per cent solution of ammonium sulphate. In treating grasses and similar bulky materials, the non-cellulosic material is first hydrolysed and the alkali required thus economized by a preliminary acid treatment preferably with a 0.4 per cent solution of sulphuric acid at a pressure of 4-6 atmospheres for 30-60 minutes.
GB20235/26A 1926-08-17 1926-08-17 A new or improved process of manufacturing pulp for paper production Expired GB280629A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB20235/26A GB280629A (en) 1926-08-17 1926-08-17 A new or improved process of manufacturing pulp for paper production
US146575A US1679441A (en) 1926-08-17 1926-11-05 Process of manufacturing pulp for paper production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20235/26A GB280629A (en) 1926-08-17 1926-08-17 A new or improved process of manufacturing pulp for paper production

Publications (1)

Publication Number Publication Date
GB280629A true GB280629A (en) 1927-11-17

Family

ID=10142608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20235/26A Expired GB280629A (en) 1926-08-17 1926-08-17 A new or improved process of manufacturing pulp for paper production

Country Status (2)

Country Link
US (1) US1679441A (en)
GB (1) GB280629A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB651912A (en) * 1948-06-08 1951-04-11 Oldham & Son Ltd A new or improved acid-resisting, micro-porous material and method of making the same
US2932600A (en) * 1953-02-25 1960-04-12 Brown And Root Inc Process for the production of pulp from bagasse
US2854334A (en) * 1954-11-08 1958-09-30 Hawaiian Dev Company Ltd Rapid kraft pulping process for bagasse and other fibrous, non-woody lignocellulosic plant materials
US2924547A (en) * 1954-11-08 1960-02-09 Hawaiian Dev Company Ltd Rapid neutral sulfite process for pulping bagasse and other non-woody plant lignocellulose
US2944929A (en) * 1959-01-05 1960-07-12 Hawaiian Dev Company Rapid soda process for pulping bagasse and other non-woody plant lignocellulose

Also Published As

Publication number Publication date
US1679441A (en) 1928-08-07

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