RO116730B8 - Procedeu de obţinere a unui pigment azoic, sare de bariu - Google Patents

Procedeu de obţinere a unui pigment azoic, sare de bariu Download PDF

Info

Publication number
RO116730B8
RO116730B8 RO97-01783A RO9701783A RO116730B8 RO 116730 B8 RO116730 B8 RO 116730B8 RO 9701783 A RO9701783 A RO 9701783A RO 116730 B8 RO116730 B8 RO 116730B8
Authority
RO
Romania
Prior art keywords
producing
reaction
salt
acid
pigment
Prior art date
Application number
RO97-01783A
Other languages
English (en)
Other versions
RO116730B1 (ro
Inventor
Valentin Rădiţoiu
Angela Anca Athanasiu
Petrea Ardeleanu
Luminiţa Eugenia Wagner
Alina Rădiţoiu
Elena Ioniţă
Daniela Anastase
Original Assignee
Institutul De Cercetări Chimice - Icechim
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 Institutul De Cercetări Chimice - Icechim filed Critical Institutul De Cercetări Chimice - Icechim
Priority to RO97-01783A priority Critical patent/RO116730B8/ro
Publication of RO116730B1 publication Critical patent/RO116730B1/ro
Publication of RO116730B8 publication Critical patent/RO116730B8/ro

Links

Landscapes

  • Paints Or Removers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Invenţia prezintă un procedeu de obţinere a unui pigment azoic, sare de bariu, care constă în reacţia de diazotare a acidului antranilic în soluţie apoasă de acid clorhidric şi în prezenţa clorurii de bariu, la un raport molar acid antranilic : clorură de bariu de 1:0,53...0,61, urmată de reacţia de cuplare a sării de diazoniu obţinute, cu sarea de sodiu a beta-naftolului ce se desfăşoară în prezenţa agentului de lăcuire, la 5...20°C, utilizându-se naftenaţi de sodiu ca agent tensioactiv, după care, masa de reacţie ce are pH = 7,5...9,5, se încălzeşte la 80 ... 90°C, în vederea obţinerii formei cristaline, termodinamic stabile, a pigmentului.
RO97-01783A 1997-09-24 1997-09-24 Procedeu de obţinere a unui pigment azoic, sare de bariu RO116730B8 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO97-01783A RO116730B8 (ro) 1997-09-24 1997-09-24 Procedeu de obţinere a unui pigment azoic, sare de bariu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO97-01783A RO116730B8 (ro) 1997-09-24 1997-09-24 Procedeu de obţinere a unui pigment azoic, sare de bariu

Publications (2)

Publication Number Publication Date
RO116730B1 RO116730B1 (ro) 2001-05-30
RO116730B8 true RO116730B8 (ro) 2011-10-28

Family

ID=20105486

Family Applications (1)

Application Number Title Priority Date Filing Date
RO97-01783A RO116730B8 (ro) 1997-09-24 1997-09-24 Procedeu de obţinere a unui pigment azoic, sare de bariu

Country Status (1)

Country Link
RO (1) RO116730B8 (ro)

Also Published As

Publication number Publication date
RO116730B1 (ro) 2001-05-30

Similar Documents

Publication Publication Date Title
CA2263266A1 (en) A process to manufacture stabilized alkali or alkaline earth metal hypobromite and uses thereof in water treatment to control microbial fouling
CA2281922A1 (en) Melamine melam melem double salt of a polyphosphoric acid and process for its production
WO2000027857A3 (fr) Nouveaux derives de l'erythromycine, leur procede de preparation et leur application comme medicaments
DE69603731D1 (de) Flammgeschützte produkte
CA2230774A1 (en) Manufacture of ascorbyl monophosphates
CA2071999A1 (en) Process for producing salt of aminocarboxylic acid
AU2003291090A1 (en) Soap bars exhibiting antibacterial effectiveness and method of producing same
CA2425615A1 (en) Process for the purification of gabapentin using a strong cation exchange resin
ZA985023B (en) A process for the preparation of 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid and the derivatives thereof
RO116730B8 (ro) Procedeu de obţinere a unui pigment azoic, sare de bariu
AU4612100A (en) Process for preparing r-(-)-carnitine from s-(-)-chlorosuccinic acid or from a derivative thereof
CA2340442A1 (en) Process for preparing 3,5-difluoroaniline
MX9702990A (es) Amplificacion y deteccion de especie compleja de mycobacterium avium.
TW266208B (ro)
AU2002219127A1 (en) Process for the production of ceftifur sodium salt
EP0788459A4 (ro)
AU8856598A (en) Method for producing 3-hydroxy-2-methylbenzoic acid
WO2003066936A3 (en) Commercial process for electroplating nickel-phosphorus coatings
EP1526127A3 (en) Process for production of S,S-ethylenediamine-N,N'-disuccinic acid iron alkali salt
CA2104116A1 (en) Process for the preparation of 4-alkylsulfonyl-1-alkyl-2-chlorobenzenes and the like
HU9802955D0 (en) Process for producing amino-cyano-acetamide
EP1136476A3 (en) Process for the preparation of 5,5'-bi-1H-Tetrazolediammonium salts using hydrazine hydrate and dicyan as starting materials
SU1388408A1 (ru) Комплексы фенантридоновых дисазокрасителей с повышенной устойчивостью к свету и мокрому трению
KR970006287A (ko) 개선된 바비튜르산의 제조방법
BR9809726A (pt) Processo para preparar 3,4 - dehidroprolinas quirais