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RU2002123536A - METHOD FOR ISOLATING SODIUM TECHNICAL FORMATE - Google Patents

METHOD FOR ISOLATING SODIUM TECHNICAL FORMATE

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Publication number
RU2002123536A
RU2002123536A RU2002123536/04A RU2002123536A RU2002123536A RU 2002123536 A RU2002123536 A RU 2002123536A RU 2002123536/04 A RU2002123536/04 A RU 2002123536/04A RU 2002123536 A RU2002123536 A RU 2002123536A RU 2002123536 A RU2002123536 A RU 2002123536A
Authority
RU
Russia
Prior art keywords
formate
sodium
sodium chloride
evaporation
aqueous solution
Prior art date
Application number
RU2002123536/04A
Other languages
Russian (ru)
Other versions
RU2222524C1 (en
Inventor
Олег Борисович Абрамов
Валерий Владимирович Андрейчатенко
Наталь Ивановна Боровнева
Наталья Ивановна Боровнева
Артур Николаевич Голубев
Алексей Сергеевич Дедов
Владимир Юрьевич Захаров
Андрей Григорьевич Лавринов
Владимир Аркадьевич Чуркин
Дмитрий Александрович Шабалин
Original Assignee
Открытое акционерное общество "Кирово-Чепецкий химический комбинат им. Б.П. Константинова"
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 Открытое акционерное общество "Кирово-Чепецкий химический комбинат им. Б.П. Константинова" filed Critical Открытое акционерное общество "Кирово-Чепецкий химический комбинат им. Б.П. Константинова"
Priority to RU2002123536/04A priority Critical patent/RU2222524C1/en
Application granted granted Critical
Publication of RU2222524C1 publication Critical patent/RU2222524C1/en
Publication of RU2002123536A publication Critical patent/RU2002123536A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (3)

1. Способ выделения технического формиата натрия из водного раствора формиата натрия и хлорида натрия, образующегося в процессе производства хлороформа методом расщепления технического хлораля водным раствором гидроксида натрия, включающий упаривание, кристаллизацию и сушку, отличающийся тем, что упаривание водного раствора формиата натрия и хлорида натрия ведут по крайней мере в две стадии, первую стадию упаривания совмещают с кристаллизацией хлорида натрия, после чего отделяют кристаллы хлорида натрия и завершают упарку и сушку с получением твердого продукта.1. The method of separation of technical sodium formate from an aqueous solution of sodium formate and sodium chloride, formed during the production of chloroform by splitting the technical chloral with an aqueous solution of sodium hydroxide, including evaporation, crystallization and drying, characterized in that the evaporation of an aqueous solution of sodium formate and sodium chloride at least in two stages, the first stage of evaporation is combined with crystallization of sodium chloride, after which the crystals of sodium chloride are separated and the evaporation and drying are completed with radiation solid. 2. Способ по п.1, отличающийся тем, что первую стадию упаривания водного раствора формиата натрия и хлорида натрия ведут до содержания формиата натрия в растворе 50-60 мас.%.2. The method according to claim 1, characterized in that the first stage of evaporation of an aqueous solution of sodium formate and sodium chloride lead to the content of sodium formate in a solution of 50-60 wt.%. 3. Способ по п.1 или 2, отличающийся тем, что отделение кристаллов хлорида натрия от раствора формиата натрия осуществляют отстаиванием с последующей промывкой осадка кристаллов хлорида натрия исходным водным раствором формиата натрия и хлорида натрия и возвращением промывного раствора на первую стадию упаривания.3. The method according to claim 1 or 2, characterized in that the separation of crystals of sodium chloride from a solution of sodium formate is carried out by sedimentation, followed by washing the precipitate of crystals of sodium chloride with an initial aqueous solution of sodium formate and sodium chloride and returning the washing solution to the first stage of evaporation.
RU2002123536/04A 2002-09-03 2002-09-03 Method for isolation of technical sodium formate RU2222524C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002123536/04A RU2222524C1 (en) 2002-09-03 2002-09-03 Method for isolation of technical sodium formate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002123536/04A RU2222524C1 (en) 2002-09-03 2002-09-03 Method for isolation of technical sodium formate

Publications (2)

Publication Number Publication Date
RU2222524C1 RU2222524C1 (en) 2004-01-27
RU2002123536A true RU2002123536A (en) 2004-03-10

Family

ID=32091650

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002123536/04A RU2222524C1 (en) 2002-09-03 2002-09-03 Method for isolation of technical sodium formate

Country Status (1)

Country Link
RU (1) RU2222524C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119684115A (en) * 2024-12-16 2025-03-25 中盐安徽红四方股份有限公司 Recovery Technology of Sodium Formate from Hydrosulfite

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2076854C1 (en) * 1995-03-14 1997-04-10 Акционерное общество "Кирово-Чепецкий химический комбинат им.Б.П.Константинова" Process for simultaneously preparing chloroform and formic acid salt
FI107381B (en) * 1998-09-25 2001-07-31 Kemira Chemicals Oy Process for the preparation of potassium formate
RU2160250C1 (en) * 1999-04-20 2000-12-10 ОАО "Кирово-Чепецкий химический комбинат им. Б.П. Константинова" Method of isolating industrial sodium formate
RU2150458C1 (en) * 1999-11-25 2000-06-10 Дедов Алексей Сергеевич Method of simultaneous synthesis of chloroform and sodium formate

Also Published As

Publication number Publication date
RU2222524C1 (en) 2004-01-27

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Effective date: 20050315

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Effective date: 20160904