ES488965A1 - Procedimiento de purificacion quimica de naftaleno - Google Patents

Procedimiento de purificacion quimica de naftaleno

Info

Publication number
ES488965A1
ES488965A1 ES488965A ES488965A ES488965A1 ES 488965 A1 ES488965 A1 ES 488965A1 ES 488965 A ES488965 A ES 488965A ES 488965 A ES488965 A ES 488965A ES 488965 A1 ES488965 A1 ES 488965A1
Authority
ES
Spain
Prior art keywords
naphthalene
sulphuric acid
preparation
water
purification
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
ES488965A
Other languages
English (en)
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.)
Orkem SA
Original Assignee
Chimique des Charbonnages SA
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 Chimique des Charbonnages SA filed Critical Chimique des Charbonnages SA
Publication of ES488965A1 publication Critical patent/ES488965A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/14875—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Procedimiento de purificación química del naftaleno, caracterizado por el hecho de que consisten en, a) sulfonar al menos en parte, el naftaleno que hay que purificar, por reacción con el ácido sulfúrico, eliminando totalmente de forma continua el agua del medio de reacción por destilación azeotrópica, por medio de uno o varios hidrocarburos alifáticos saturados y/o cicloalifáticos saturados, de modo que el producto obtenido carezca de agua y ácido sulfúrico; b) después, si procede, mezclar el naftaleno sulfonado, al menos en parte, obtenido en a) con el naftaleno que hay que purificar; c) y después, hacer reaccionar formaldehído con el naftaleno sulfonado al menos en parte, al que se añadirá, si procede, el naftaleno que hay que purificar, d) y por último, destilar el naftaleno contenido en el medio de reacción.
ES488965A 1979-03-02 1980-02-26 Procedimiento de purificacion quimica de naftaleno Expired ES488965A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7905433A FR2450252A1 (fr) 1979-03-02 1979-03-02 Procede de preparation de naphtalene sulfone au moins en partie et application du produit obtenu a la purification du naphtalene

Publications (1)

Publication Number Publication Date
ES488965A1 true ES488965A1 (es) 1980-09-16

Family

ID=9222675

Family Applications (1)

Application Number Title Priority Date Filing Date
ES488965A Expired ES488965A1 (es) 1979-03-02 1980-02-26 Procedimiento de purificacion quimica de naftaleno

Country Status (6)

Country Link
EP (1) EP0015831B1 (es)
AT (1) ATE510T1 (es)
DE (1) DE3060122D1 (es)
ES (1) ES488965A1 (es)
FR (1) FR2450252A1 (es)
IL (1) IL59502A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108822006A (zh) * 2018-05-31 2018-11-16 山西豪仑科化工有限公司 一种萘磺化连续反应工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB760054A (en) * 1954-03-29 1956-10-31 Yorkshire Tar Distillers Ltd Purification of naphthalene
US2955144A (en) * 1958-06-18 1960-10-04 American Cyanamid Co Process for refining naphthalene
FR1300453A (fr) * 1961-09-09 1962-08-03 Allied Chem Production d'acide naphtalène-sulfonique
BE659662A (es) * 1963-03-07
US3550172A (en) * 1968-01-03 1970-12-29 Usm Corp Fastener manufacture
GB1371232A (en) * 1972-03-09 1974-10-23 Midland Yorkshire Holdings Ltd Purification of naphthalene
JPS4933192A (es) * 1972-07-29 1974-03-27
DE2432066A1 (de) * 1974-07-04 1976-01-15 Ruetgerswerke Ag Verfahren zur gewinnung von reinem naphthalin bzw. von dessen reinen homologen

Also Published As

Publication number Publication date
FR2450252B1 (es) 1983-03-25
FR2450252A1 (fr) 1980-09-26
ATE510T1 (de) 1982-01-15
IL59502A (en) 1984-12-31
IL59502A0 (en) 1980-05-30
EP0015831B1 (fr) 1981-12-30
EP0015831A1 (fr) 1980-09-17
DE3060122D1 (en) 1982-02-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970519