DE55414C - Process for the preparation of dioxynaphthalenecarboxylic acids according to the specifications of patent nos. 31240 and 38052 - Google Patents

Process for the preparation of dioxynaphthalenecarboxylic acids according to the specifications of patent nos. 31240 and 38052

Info

Publication number
DE55414C
DE55414C DENDAT55414D DE55414DA DE55414C DE 55414 C DE55414 C DE 55414C DE NDAT55414 D DENDAT55414 D DE NDAT55414D DE 55414D A DE55414D A DE 55414DA DE 55414 C DE55414 C DE 55414C
Authority
DE
Germany
Prior art keywords
salts
dioxynaphthalene
dioxynaphthalenecarboxylic
specifications
preparation
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
DENDAT55414D
Other languages
German (de)
Original Assignee
Firma Dr. F. VON HEYDEN NACHFOLGER in Radebeul bei Dresden
Publication of DE55414C publication Critical patent/DE55414C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.

Claims (1)

Patent-Anspruch:Patent claim: Unter Benutzung der durch die Patente No. 31240 und 38052 geschützten Verfahren zur Darstellung von Carbonnaphtolsäuren: die Darstellung von Dioxynaphtalincarbonsäuren aus den Monoalkali- oder Erdalkalisalzen von Dioxynaphtalin (1.8) und Dioxynaphtalin aus Crocei'nsäure:Using the patent no. 31240 and 38052 protected procedures for the representation of carbon naphtholic acids: the representation of dioxynaphthalene carboxylic acids from the monoalkali or alkaline earth salts of dioxynaphthalene (1.8) and dioxynaphthalene Croceic acid: a) durch Sättigung genannter Salze in der Kälte bei gewöhnlichem oder erhöhtem Druck mit Kohlensäure und nachfolgende Erhitzung der Salze im geschlossenen Gefäfs bis über ioo° C, am besten 140 ° C, odera) by saturation of said salts in the cold with ordinary or elevated Pressure with carbonic acid and subsequent heating of the salts in a closed vessel up to over 100 ° C, preferably 140 ° C, or b) durch Leitung eines -Kohlensäurestromes von annäherndem Atmosphärendruck bei 120 bis 200° C. über oder durch die betreffenden Salze, oderb) by conducting a carbonic acid stream of approximately atmospheric pressure 120 to 200 ° C. above or through the salts concerned, or c) durch Behandlung der betreffenden Salze im geschlossenen Gefäfs bei 100 bis 2000 (am besten 1400C.) mit Kohlensäure von höherem Druck.c) by treatment of the relevant salts in a closed vessel, at 100 to 200 0 (best 140 0 C.) with carbonated of higher pressure.
DENDAT55414D Process for the preparation of dioxynaphthalenecarboxylic acids according to the specifications of patent nos. 31240 and 38052 Expired - Lifetime DE55414C (en)

Publications (1)

Publication Number Publication Date
DE55414C true DE55414C (en)

Family

ID=329944

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT55414D Expired - Lifetime DE55414C (en) Process for the preparation of dioxynaphthalenecarboxylic acids according to the specifications of patent nos. 31240 and 38052

Country Status (1)

Country Link
DE (1) DE55414C (en)

Similar Documents

Publication Publication Date Title
US7858136B2 (en) Method for manufacturing pure oxygen—containing diluted soju
DE55414C (en) Process for the preparation of dioxynaphthalenecarboxylic acids according to the specifications of patent nos. 31240 and 38052
WO2018113177A1 (en) Process for clean production of electronic grade high-purity copper oxide
AT52085B (en) Process for clarifying sparkling wine under the pressure of an inert gas and in the absence of air.
DE353571C (en) Process for making odorless soaps from tears
AT166610B (en) Process for decarburizing the superficial layers of workpieces made of iron and steel
DE246554C (en)
US1827082A (en) Treatment of arsenical solutions
DE617477C (en) Process for the separation and recovery of carbonic acid from gases containing such
DE65316C (en) Process for the preparation of α-oxyuvitic acid
DE406362C (en) Process for the production of alkali cyanide from gas mixtures containing hydrogen cyanide
Gump et al. Absorption of Carbon Monoxide by Cuprous Ammonium Salts1
DE688564C (en) Process for the extraction of manganese from substances containing manganese
US20230382751A1 (en) Preventing decomposition in sodium cyanide compositions
DE1015787B (en) Process for the removal of oxygen admixtures from the gases used as starting material for the synthesis of urea
DE183530C (en)
AT55242B (en) Process for the preparation of highly concentrated nitric acid.
DE527297C (en) Process for the separate production of ammonia and ammonia compounds from gases
AT100700B (en) Process for the production of phenyl rosindulin.
DE121973C (en)
DE279954C (en)
CN114766511A (en) Fruit hardening agent for fruits easy to soften and using method
AT34873B (en) Process for the preparation of high-percentage potash from still coal or the like.
AT18993B (en) Process for the preparation of a soluble iron arsenic compound.
DE212918C (en)