DE235476C - - Google Patents

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Publication number
DE235476C
DE235476C DENDAT235476D DE235476DA DE235476C DE 235476 C DE235476 C DE 235476C DE NDAT235476 D DENDAT235476 D DE NDAT235476D DE 235476D A DE235476D A DE 235476DA DE 235476 C DE235476 C DE 235476C
Authority
DE
Germany
Prior art keywords
washing water
ammonia
copper oxide
copper
magma
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.)
Active
Application number
DENDAT235476D
Other languages
German (de)
Publication of DE235476C publication Critical patent/DE235476C/de
Active legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
    • D01F2/04—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts from cuprammonium solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Description

7070

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zur Wiedergewinnung des Kupfers aus den Waschwässern bei der Herstellung von künstlichen Cellulosegebilden aus Kupferoxydammoniakcelluloselösungen, darin bestehend, daß. die Waschwässer nach Äbdestillation des Ammoniaks und genügender Verdünnung mit kleinen Mengen eines Colloides, wie Stärke, versetzt werden, wonach das zusammengeballte Kupferoxydmagma durch einfaches Dekantieren von der alkalischen Flüssigkeit getrennt werden kann.Process for recovering the copper from the washing water in the Production of artificial cellulose structures from copper oxide ammonia cellulose solutions, consisting in that. the washing water after distillation of the ammonia and sufficient dilution with small amounts of a colloid such as starch added after which the agglomerated copper oxide magma is simply decanted from the alkaline liquid can be separated. 6060
DENDAT235476D Active DE235476C (en)

Publications (1)

Publication Number Publication Date
DE235476C true DE235476C (en)

Family

ID=495246

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT235476D Active DE235476C (en)

Country Status (1)

Country Link
DE (1) DE235476C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123265B (en) * 1956-02-28 1962-02-01 Metallgesellschaft Ag Process for cleaning alkaline, hemicellulose-containing waste water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123265B (en) * 1956-02-28 1962-02-01 Metallgesellschaft Ag Process for cleaning alkaline, hemicellulose-containing waste water

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