SU60828A1 - The method of preparation of copper-ammonium cellulose solution - Google Patents

The method of preparation of copper-ammonium cellulose solution

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Publication number
SU60828A1
SU60828A1 SU37612A SU37612A SU60828A1 SU 60828 A1 SU60828 A1 SU 60828A1 SU 37612 A SU37612 A SU 37612A SU 37612 A SU37612 A SU 37612A SU 60828 A1 SU60828 A1 SU 60828A1
Authority
SU
USSR - Soviet Union
Prior art keywords
copper
preparation
cellulose solution
ammonium
ammonium cellulose
Prior art date
Application number
SU37612A
Other languages
Russian (ru)
Inventor
А.Б. Пакшвер
З.М. Яковенко
Original Assignee
А.Б. Пакшвер
З.М. Яковенко
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 А.Б. Пакшвер, З.М. Яковенко filed Critical А.Б. Пакшвер
Priority to SU37612A priority Critical patent/SU60828A1/en
Application granted granted Critical
Publication of SU60828A1 publication Critical patent/SU60828A1/en

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Description

При приготовлении пр дильных растворов в качестве исходного соединени  меди в насто щее врем  примен етс  основна  сернокисла  соль. В дальнейшем при приготовлении медноаммиачного раствора употребл етс  также едкий натр дл  перевода сернокислой меди в гидроокись , НО щелочь беретс  в количестве 24% эквивалента, и 4,6% меди остаетс  в виде комплексной соли, не образующей медноаммиачного соединени  целлюлозы. Кроме того, растворы, приготовленные по этому способу, обладают неудовлетворительными пр дильными свойствами, что сильно сказываетс  на сортности получаемого волокна.In the preparation of the spinning solutions, the basic sulfate salt is currently used as the starting compound of copper. Subsequently, caustic soda is also used in the preparation of the copper ammonium solution to convert copper sulfate to hydroxide, BUT alkali is taken in an amount of 24% equivalent, and 4.6% of copper remains as a complex salt that does not form a copper ammonium cellulose compound. In addition, the solutions prepared by this method have poor spinning properties, which strongly affects the grade of the fiber produced.

Согласно изобретению, дл  получени  медноаммиачных растворов целлюлозы с применением едкого натра в количестве, превышающем 2 мол  на 1 моль медного купороса, предлагаетс  брать дл  процесса основную соль меди примерного состава 2CuS04 5Си(ОН)2.According to the invention, in order to obtain copper-ammonium cellulose solutions using caustic soda in excess of 2 mol per 1 mole of copper sulphate, it is proposed to take the basic copper salt of the approximate composition 2CuS04 with 5Cu (OH) 2 for the process.

Применение 10-15i% избытка щелочи сверх необходимого дл  проведени  процесса по уравнениюThe use of 10-15i% alkali excess in excess of the required for carrying out the process according to the equation

Си (NHs) SO,-f NaOH- CuCNHj), (ОН),-j-2Na,SO4 сдвигает равновесие вправо, и вс  медь переводитс  в необходимое дл  растворени  целлюлозы активное медноаммиачное основание. Кроме того , в растворе в общей сложности накопл етс  меньше сернокислого натри , и процесс растворени  целлюлозы облегчаетс .Cu (NHs) SO, -f NaOH-CuCNHj), (OH), - j-2Na, SO4 shifts the equilibrium to the right, and all copper is converted to the active copper-ammonium base required for the dissolution of cellulose. In addition, less sodium sulphate accumulates in the solution in total, and the process of dissolving the pulp is facilitated.

Более полное использование меди позвол ет снизить общее количество последней в растворе до 0,25-0,29 кг на 1 кг целлюлозы вместо 0,43 кг, примен емых обычно.More complete use of copper allows reducing the total amount of the latter in the solution to 0.25-0.29 kg per 1 kg of cellulose instead of 0.43 kg, which are usually used.

Предмет изобретени Subject invention

СпосОб приготовлени  медноаммиачного раствора целлюлозы с применением едкого натра в количестве, превышающем 2 мол  на 1 моль медного купороса, отличающийс  тем, что, с целью улучшени  процесса растворени  целлюлозы и уменьшени  расхода меди, указанное избыточное количество едкого натра используют при получении медноаммиачного раствора целлюлозы на заранее приготовленной основной соли меди.A method of preparing a copper ammonium cellulose solution using caustic soda in excess of 2 mol per 1 mole of copper sulphate, characterized in that, in order to improve the process of dissolving cellulose and reducing copper consumption, this excess amount of caustic soda is used to obtain a copper ammonium cellulose solution in advance cooked basic copper salt.

SU37612A 1939-12-17 1939-12-17 The method of preparation of copper-ammonium cellulose solution SU60828A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU37612A SU60828A1 (en) 1939-12-17 1939-12-17 The method of preparation of copper-ammonium cellulose solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU37612A SU60828A1 (en) 1939-12-17 1939-12-17 The method of preparation of copper-ammonium cellulose solution

Publications (1)

Publication Number Publication Date
SU60828A1 true SU60828A1 (en) 1941-11-30

Family

ID=48242387

Family Applications (1)

Application Number Title Priority Date Filing Date
SU37612A SU60828A1 (en) 1939-12-17 1939-12-17 The method of preparation of copper-ammonium cellulose solution

Country Status (1)

Country Link
SU (1) SU60828A1 (en)

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