SU77935A1 - Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes - Google Patents

Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes

Info

Publication number: SU77935A1
Authority: SU; USSR - Soviet Union
Prior art keywords: aldehydes; condensation products; phenols; sulfonating; dubbers
Prior art date: 1945-04-05

Application number

SU2276A

Other languages

Russian (ru)

Inventor

Я.П. Беркман

Original Assignee

Я.П. Беркман

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.)

1945-04-05

Filing date

1945-04-05

Publication date

1948-11-30

1945-04-05 Application filed by Я.П. Беркман filed Critical Я.П. Беркман

1945-04-05 Priority to SU2276A priority Critical patent/SU77935A1/en

1948-11-30 Application granted granted Critical

1948-11-30 Publication of SU77935A1 publication Critical patent/SU77935A1/en

Landscapes

Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Известен способ обработки серной кислотой продуктов конденсации фенолов с альдегидами и использование первичной смолы или ее фракции дл получени искусственных дубителей.A known method of treating sulfuric acid with condensation products of phenols with aldehydes and using a primary resin or its fraction to obtain artificial tanning agents.

Однако дубители, получаемые по этОхМу способу, обладают слабым дуб щим свойством и не имеют широкого применени .However, tannins produced by this method have a weak oak property and are not widely used.

Предлагаемый новый способ получени синтетического дубител сульфированием продуктов конденсации фенола с альдегидами позвол ет получать дубители более высокого качества путем использовани продуктов конденсации первичной смолы или ее фракций с альдегидами или кетонами.The proposed new method for producing synthetic tanning agents by sulfonating the condensation products of phenol with aldehydes makes it possible to obtain higher quality tanning agents by using the condensation products of the primary resin or its fractions with aldehydes or ketones.

Отличительна особенность описываемого способа заключаетс в том, что в качестве исходного продукта примен ют конденсационные смолы, выдел ющиес при действии формалина на бензолигроиновую или керосиновую фракции первичной смолы. При этом указанные фракции подвергают конденсации с таким количеством альдегида (илиA distinctive feature of the described method is that condensation resins are used as the starting product, which are evolved by the action of formalin on the benzenegroin or kerosene fraction of the primary resin. Moreover, these fractions are subjected to condensation with that amount of aldehyde (or

26 Свод. Выпуск Г., 1949 г.26 Code Release G., 1949

кетона), которое необходимо дл расслоени фракции.ketone), which is necessary for the separation of the fraction.

Пример I. 1000 г бензолигроиновой фракции первичной смолы (с содержанием 45% кислых веществ), 150 г 30%-кого формалина и 50 мл 10%-ного раствора серной кислоты смещивают и нагревают 4 часа до кипени с обратным холодильником. Образовавшуюс смолу после отстаивани отдел ют в делительной воронке от других слоев (масла и воды). Смолу сгон ют паром и подсушивают до содержани в ней влаги не более 7%. Затем к подсушенной смоле приливают 350 г концентрированной серной кислоты и размешивают при 100°С до образовани сульфомассы, раствор ющейс в воде. К полученной сульфомассе приливают 150 мл воды и при 50° С добавл ют 20 г формалина. После этого смесь выдерживают до исчезновени запаха альдегида и добавл ют 50 г кальцинированной соды или 60 г доломита.Example I. 1000 g of the benzene pyroic fraction of the primary resin (containing 45% acidic substances), 150 g of 30% formalin and 50 ml of 10% sulfuric acid solution are shifted and heated for 4 hours to reflux. After settling, the resulting resin is separated in a separatory funnel from other layers (oil and water). The resin is evaporated and dried to a moisture content of no more than 7%. Then, 350 g of concentrated sulfuric acid is added to the dried resin and stirred at 100 ° C to form a sulfomass dissolving in water. 150 ml of water are added to the obtained sulfomass and 20 g of formalin is added at 50 ° C. After that, the mixture is kept until the odor of aldehyde disappears and 50 g of soda ash or 60 g of dolomite are added.

Пример II. 1000 г керосиновой фракции первичной смолы (с содержанием 30% кислых веществ), 100гExample II 1000 g of kerosene fraction of the primary resin (with a content of 30% acidic substances), 100g

401401

формалина и 20 г сол ной концентрированной кислоты смешивают и нагревают с обратным холодильником до разделени слоев. Полученную смолу отдел ют сгонкой паром и разваривают в концентрированном растворе (30° Боме) сульфитцеллюлозного экстракта, вз того в количестве 1500 г в пересчете на сухой. Затем смесь, размешива , нагревают до полной растворимости продукта.formalin and 20 g of concentrated hydrochloric acid are mixed and heated under reflux to separate the layers. The obtained resin is separated by steam stripping and in a concentrated solution (30 ° Baume) of a sulfite-cellulose extract, taken in an amount of 1500 g calculated as dry. Then the mixture, stirring, is heated to complete solubility of the product.

Предмет изобретени Способ получени синтетического дубител сульфированием продуктов конденсации фенолов с альдегидами , отличающийс тем, чтов качестве исходного продукта примен ют конденсац.ионные смолы, выдел ющиес при действии формалина на бензолигрОИновую или керосиновую фракции первичной смолы.The subject of the invention is a method for producing a synthetic tanning agent by sulphonating condensation products of phenols with aldehydes, characterized in that the quality of the initial product uses condensation ionic resins evolved by the action of formalin on the benzenegrowin or kerosene fraction of the primary resin.

SU2276A 1945-04-05 1945-04-05 Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes SU77935A1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
SU2276A SU77935A1 (en)	1945-04-05	1945-04-05	Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SU2276A SU77935A1 (en)	1945-04-05	1945-04-05	Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes

Publications (1)

Publication Number	Publication Date
SU77935A1 true SU77935A1 (en)	1948-11-30

Family

ID=52746074

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SU2276A SU77935A1 (en)	1945-04-05	1945-04-05	Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes

Country Status (1)

Country	Link
SU (1)	SU77935A1 (en)

1945
- 1945-04-05 SU SU2276A patent/SU77935A1/en active

Publication	Publication Date	Title
US2099717A (en)	1937-11-23	Process for the production of water-soluble condensation products
SU77935A1 (en)	1948-11-30	Method for producing synthetic dubbers by sulfonating condensation products of phenols with aldehydes
US1932255A (en)	1933-10-24	Molding composition of fibrous vegetable material and furfural
US2092622A (en)	1937-09-07	Artificial tanning substances and process of preparing them
DE733679C (en)	1943-04-01	Process for the production of cation-exchanging synthetic resins based on phenol
US1989951A (en)	1935-02-05	Synthetic resin and process of making the same
US1972797A (en)	1934-09-04	Tanning animal hides
DE707006C (en)	1941-06-11	Process for the production of water-soluble condensation products
US2122125A (en)	1938-06-28	Water-soluble condensation products and a process of producing same
SU62995A1 (en)	1943-11-30	The method of obtaining synthetic tanning agents
DE720759C (en)	1942-05-14	Process for the production of synthetic resins
SU48328A1 (en)	1936-08-31	The method of obtaining artificial tanning
GB347611A (en)	1931-04-28	Improvements in or relating to the manufacture of lacquers, varnishes or the like
SU143811A1 (en)	1961-11-30	The method of obtaining tannins
DE495790C (en)	1930-04-10	Process for the production of urea-formaldehyde condensation products
SU454224A1 (en)	1974-12-25	The method of obtaining tanning and fixatives
SU66909A1 (en)	1945-11-30	The method of obtaining synthetic tanning agents
SU12635A1 (en)	1930-01-31	The method of preparation of artificial tanning substances
SU61613A1 (en)	1941-11-30	The method of obtaining artificial tanning
US1793312A (en)	1931-02-17	Synthetic resin and process of making same
DE423081C (en)	1925-12-18	Process for the preparation of sulfoalkyl and sulfoaryl ethers from resinous condensation products derived from phenols
SU32725A1 (en)	1933-10-31	The method of obtaining varnish resins, artificial asphalt and plastics
SU6662A1 (en)	1928-09-29	The method of tanning skins or leather
GB478988A (en)	1938-01-28	Improvements in the process of treating phenol condensation products adapted for themanufacturing of phenol-aldehyde resins or products thereof
SU60436A1 (en)	1941-06-30	Method for separating oxygenic organic substances of a neutral nature from their mixtures with hydrocarbons