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IPC

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Application

2002123537/04, 2002-09-03

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Start date

2002-09-03

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Actual filing date

2002-09-03

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Published

2004-01-27

(72)

Inventor

Abramov O.B.Andrejchatenko V.V.Borovneva N.I.Golubev A.N.Dedov A.S.Zakharov V.Ju.Lavrinov A.G.Churkin V.A.Shabalin D.A.

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Holder

Otkrytoe Aktsionernoe Obshchestvo Khimicheskij Kombinat Im. B.P. Konstantinova"

METHOD FOR SIMULTANEOUS PREPARING CHLOROFORM AND SODIUM FORMATE Russian patent published in 2004 - IPC

Abstract RU 2222521 C1

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to preparing chloroform used as raw in producing fluorochlorohydrocarbons and for preparing sodium formatted used as preserving agent of rough fodder and antiglaze agent. Method involves preparing technical chloral by interaction of ethanol with gaseous chlorine with simultaneous distillation off of chloral in rectification regimen. Distilled off chloral is treated with sodium hydroxide solution, end products are isolated by settling and separation of bottom chloroform layer and upper layer of sodium formate solution. Sodium formate aqueous solution is evaporated with simultaneous crystallization of sodium chloride. Concentrating sodium chloride is carried out at temperature 95-100 C by bubbling through air solution. Concentrated sodium formate after separation of sodium chloride crystals is subjected for drying and commercial product is obtained. EFFECT: improved preparing method, enhanced quality of technical sodium formate. 3 cl, 2 ex

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RU 2 222 521 C1

Authors

Abramov O.B.

Andrejchatenko V.V.

Borovneva N.I.

Golubev A.N.

Dedov A.S.

Zakharov V.Ju.

Lavrinov A.G.

Churkin V.A.

Shabalin D.A.

Dates

2004-01-27—Published

2002-09-03—Filed