SU191501A1 - - Google Patents

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Publication number
SU191501A1
SU191501A1 SU764524A SU764524A SU191501A1 SU 191501 A1 SU191501 A1 SU 191501A1 SU 764524 A SU764524 A SU 764524A SU 764524 A SU764524 A SU 764524A SU 191501 A1 SU191501 A1 SU 191501A1
Authority
SU
USSR - Soviet Union
Prior art keywords
exchange
electrolysis
aluminate
cathode
electrolyzers
Prior art date
Application number
SU764524A
Other languages
Russian (ru)
Publication of SU191501A1 publication Critical patent/SU191501A1/ru

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Description

Известен снособ электрохимического выделени  гидрата окиси алюмини  из алюмипатных растворов. Известно получение гидроокиси алюмини  из алюминатных растворов в электролизерах с  чейками и диафрагмами, а также применение перфорированпых электродов из никел  и стали дл  электролиза алюмипатных растворов.A known method for the electrochemical separation of alumina hydrate from aluminate solutions. It is known to produce aluminum hydroxide from aluminate solutions in electrolyzers with cells and diaphragms, as well as using perforated nickel and steel electrodes for the electrolysis of aluminate solutions.

Дл  ускорени  и обеспечени  непрерывности процесса предлагаетс  исходный алюминатный раствор подвергать последовательному электролизу при нлотности тока 0,075- 0,1 а/ж в многокамерных электролизерах с катионообменными диафрагмами, изготовл емыми из ионообменных смол на основе полиэтилена.In order to accelerate and ensure the continuity of the process, it is suggested that the initial aluminate solution be subjected to sequential electrolysis with a current density of 0.075-0.1 a / f in multi-chamber electrolyzers with cation-exchange diaphragms made of polyethylene-based ion exchange resins.

Сущность способа заключаетс  в том, что электролиз алюмпиатиых растворов нроизво;| , т в многокамерных электролизерах, в которых анодные и катодные пространства разделены катпонообменной диафрагмой. Плотность тока нри электролизе 0,075-0,1 а/лга.The essence of the method lies in the fact that the electrolysis of aluminae solutions is not functional; | , T in multi-chamber electrolyzers, in which the anode and cathode spaces are separated by a cathode-exchange diaphragm. The current density in the electrolysis of 0.075-0.1 a / log.

В качестве диафрагм, 1.с ользу1отс  мсМбра л из ио 1ообменно | смолы КУ-2 ia осH0 je полиэтилена.As diaphragms, 1.c. With the use of msMbrl from io 1 exchange | resins KU-2 ia oc H0 je polyethylene.

Анодом служит перфор :рова ип Й никель, катодом - нерл авеюща  перфорированна  сталь.The anode is a perforation: a groove of a nickel, and a cathode — nerve perforated steel.

В катодное пространство поступает 5%-ный раствор щелочи (NaOH), а в анодное - раствор алюмината натри .A 5% alkali solution (NaOH) enters the cathode space, and sodium aluminate solution enters the anode space.

Предмет изобретени Subject invention

Снособ выделени  гидрата окиси алюмини  КЗ алю.минатных растворов, отличающийси тем, что, с целью обеснечени  непрерывности процесса и его ускорени , исходный алюминатный раствор нодвергают последовательному электролизу в многокамер 1)1х электролизерах при плотности тока 0,075-0,1 a. применеиием катионообменных диафрагм, изготовл емых из ионообменных смо.т на основе полиэтилена. The method for isolating the alumina hydrate of CZ aluminate solutions, characterized in that, in order to ensure the continuity of the process and its acceleration, the initial aluminate solution is subjected to sequential electrolysis in multicamera 1) 1x electrolyzers at a current density of 0.075-0.1 a. using cation-exchange diaphragms made of ion-exchange resin based on polyethylene.

SU764524A SU191501A1 (en)

Publications (1)

Publication Number Publication Date
SU191501A1 true SU191501A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118399A (en) * 1988-04-19 1992-06-02 Vaughan Daniel J Electrodialytic recovery process
US5141610A (en) * 1988-04-19 1992-08-25 Vaughan Daniel J Electrodialytic process for restoring sodium hydroxide etchants for aluminum
US5198085A (en) * 1990-04-12 1993-03-30 Vaughan Daniel J Restoration of alkali hydroxide etchants of aluminum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118399A (en) * 1988-04-19 1992-06-02 Vaughan Daniel J Electrodialytic recovery process
US5141610A (en) * 1988-04-19 1992-08-25 Vaughan Daniel J Electrodialytic process for restoring sodium hydroxide etchants for aluminum
US5198085A (en) * 1990-04-12 1993-03-30 Vaughan Daniel J Restoration of alkali hydroxide etchants of aluminum

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