RU95122428A - METHOD OF OBTAINING A SYNTHETIC BROKER - Google Patents

METHOD OF OBTAINING A SYNTHETIC BROKER

Info

Publication number
RU95122428A
RU95122428A RU95122428/12A RU95122428A RU95122428A RU 95122428 A RU95122428 A RU 95122428A RU 95122428/12 A RU95122428/12 A RU 95122428/12A RU 95122428 A RU95122428 A RU 95122428A RU 95122428 A RU95122428 A RU 95122428A
Authority
RU
Russia
Prior art keywords
obtaining
broker
synthetic
formaldehyde
acetone
Prior art date
Application number
RU95122428/12A
Other languages
Russian (ru)
Other versions
RU2091493C1 (en
Inventor
В.И. Чурсин
А.Н. Львова
Original Assignee
Центральный научно-исследовательский институт кожевенно-обувной промышленности
Filing date
Publication date
Application filed by Центральный научно-исследовательский институт кожевенно-обувной промышленности filed Critical Центральный научно-исследовательский институт кожевенно-обувной промышленности
Priority to RU95122428A priority Critical patent/RU2091493C1/en
Priority claimed from RU95122428A external-priority patent/RU2091493C1/en
Application granted granted Critical
Publication of RU2091493C1 publication Critical patent/RU2091493C1/en
Publication of RU95122428A publication Critical patent/RU95122428A/en

Links

Claims (1)

Способ получения синтетического дубителя путем конденсации ацетона и формальдегида в присутствии гидроокиси натрия при нагревании, отличающийся тем, что в реакционную смесь дополнительно вводят ароматическую сульфокислоту и конденсацию ведут при следующем соотношении компонентов, мас.%:
Ацетон - 40 - 80
Формальдегид - 15 - 25
Ароматическая сульфокислота - 4,8 - 34
Гидроокись натрия - 0,2 - 1,0йThe method of obtaining synthetic tanning agent by condensation of acetone and formaldehyde in the presence of sodium hydroxide when heated, characterized in that the aromatic sulfonic acid is additionally introduced into the reaction mixture and condensation is carried out in the following ratio, wt.%:
Acetone - 40 - 80
Formaldehyde - 15 - 25
Aromatic sulfonic acid - 4.8 - 34
Sodium hydroxide - 0.2 - 1.0
RU95122428A 1995-12-28 1995-12-28 Method of synthesis of synthetic tanning agent RU2091493C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95122428A RU2091493C1 (en) 1995-12-28 1995-12-28 Method of synthesis of synthetic tanning agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95122428A RU2091493C1 (en) 1995-12-28 1995-12-28 Method of synthesis of synthetic tanning agent

Publications (2)

Publication Number Publication Date
RU2091493C1 RU2091493C1 (en) 1997-09-27
RU95122428A true RU95122428A (en) 1997-12-10

Family

ID=20175298

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95122428A RU2091493C1 (en) 1995-12-28 1995-12-28 Method of synthesis of synthetic tanning agent

Country Status (1)

Country Link
RU (1) RU2091493C1 (en)

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