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
GB30627/53A
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.)
TOTEN CELLULOSEFAB AS
Original Assignee
TOTEN CELLULOSEFAB AS
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Application filed by TOTEN CELLULOSEFAB ASfiledCriticalTOTEN CELLULOSEFAB AS
Publication of GB739312ApublicationCriticalpatent/GB739312A/en
C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
C14C3/00—Tanning; Compositions for tanning
C14C3/02—Chemical tanning
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Chemical & Material Sciences
(AREA)
Chemical Kinetics & Catalysis
(AREA)
General Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Treatment And Processing Of Natural Fur Or Leather
(AREA)
Abstract
739,312. Regenerating tanning solutions. AKTIESELSKABET TOTEN CELLULOSEFABRIK. Nov. 5, 1953 [Nov. 8, 1952], No. 30627/53. Drawings to Specification. Class 76. The salt content of tanning solutions is reduced and the pH adjusted during the tanning process by conducting a portion of the solution through an acid cation exchanger and returning it to the main solution. The process may be operated continuously or discontinuously. The portion circulated through the exchanger may be heated, e.g. to 60-90‹ C., and a settling chamber may be provided if desired in the circulating stream. Cellulose extracts are mentioned as tanning substances.
GB30627/53A1952-11-081953-11-05Process for reducing the salt content and adjusting ph in tanning solutions
ExpiredGB739312A
(en)
Methods for reducing the water requirement and eliminating the discharge of impurities in the treatment of fibrous plant material with alkali in aqueous solution in order to enhance and improve the feed value of the plant material
Procedure for the manufacture of a phytotherapeutic product intended for winter trees winter treatments (Machine-translation by Google Translate, not legally binding)