SU97128A1 - The method of regeneration of the whitening bath during the production processing of color multilayer photographic materials - Google Patents

The method of regeneration of the whitening bath during the production processing of color multilayer photographic materials

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Publication number
SU97128A1
SU97128A1 SU4468-15A SU446815A SU97128A1 SU 97128 A1 SU97128 A1 SU 97128A1 SU 446815 A SU446815 A SU 446815A SU 97128 A1 SU97128 A1 SU 97128A1
Authority
SU
USSR - Soviet Union
Prior art keywords
regeneration
solution
photographic materials
production processing
bath during
Prior art date
Application number
SU4468-15A
Other languages
Russian (ru)
Inventor
М.Н. Герасимович
Л.Я. Крауш
Original Assignee
М.Н. Герасимович
Л.Я. Крауш
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 М.Н. Герасимович, Л.Я. Крауш filed Critical М.Н. Герасимович
Priority to SU4468-15A priority Critical patent/SU97128A1/en
Application granted granted Critical
Publication of SU97128A1 publication Critical patent/SU97128A1/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

В процессе обработки uBefnoii миогоапойной плёнки по так называемому ускоренному способу НИКФИ в отбеливающей ванне происходит окисление серебра железосиперодистым калием и растворение образовавшегос  же.;1езистосинеродистого серебра в тиосульфате натри , заносимом в ванну с пленкой.In the process of processing uBefnoii of myo-anapic film according to the so-called NIKFI accelerated method, silver is oxidized with iron-peridy potassium in a whitening bath and the formed silver is dissolved.

Указанные реакции выражаютс  следующими уравнени ми: 4КзРе(СМ)б + 4Ag 3K4Fe (СМ)бThese reactions are expressed by the following equations: 4KsPe (CM) b + 4Ag 3K4Fe (CM) b

-Ag4Fe (CN)6 Ag4Fe(CN)6 + IGNaaSaOa -Ag4Fe (CN) 6 Ag4Fe (CN) 6 + IGNaaSaOa

-3Na4Fe(CN)6 + 4Na5Ag3 (8203)4 Одновременно идет реакци  восстановлени  железосинеродистого кали  тиосульфатом натри  до железистосинеродистого кали .-3Na4Fe (CN) 6 + 4Na5Ag3 (8203) 4 At the same time, the reduction of potassium ferrocyanide with sodium thiosulphate to potassium-peroxide peroxide proceeds at the same time.

Дл  поддержани  требуемой концентрации железосинеродистого кали  производитс  непрерывное дс;бавление свежего раствора.To maintain the required concentration of potassium ferrocyanide, continuous DS is produced; the fresh solution is added.

Отработанный отбе пивающий раствор используетс  лишь дл  из . влечени  из него серебра. Же-иезссинеродистый калий, как правило, не регенерируетс . .Spent drinking solution is used only for dosing. the attraction of silver. The same izssinerodisty potassium, as a rule, is not regenerated. .

По предлагаемому способу регенерации отбеливающего раствораThe proposed method of regeneration of the bleaching solution

путем окислени  ооразовавщегосн железистосиперодистого кали  в качестве окислител  примен юг раствор хлорной извести. При введении раствора хлорной извести i. отработанный отбеливающий расТ вор происходит одновременное окисление тиосульфата и железистосинеродистого кали  согласно следующим уравнени м:by oxidation of orazable ferriferous potassium as an oxidizing agent, apply bleach solution. With the introduction of bleach solution i. spent bleaching agent; thio-sulphate and ferrous sulphide potassium oxidize simultaneously according to the following equations:

Na2S2O3- 4CaOCl2 + n..O 2CaSO, - 2СаОС1. -i- 2NaCl -г 2НС1 2K4Fe(CN)6 + CaOCl, + 2НС1 2K3Fe(CN)6 + 2KC1 - СаСЬ+Н2ОNa2S2O3-4CaOCl2 + n..O 2CaSO, - 2CaOC1. -i-2NaCl-g 2HC1 2K4Fe (CN) 6 + CaOCl, + 2HC1 2K3Fe (CN) 6 + 2KC1 - CaCl2 + H2O

Образовавишйс  CaSO, выпадаei в осадок.Formed CaSO, precipitated.

Окислитель примен ют в виде водного фильтрованного 0,7N раствора хлорной извести, в количестве, рассчитанном на основании анализа отработанного отбеливающего раствора. Окисл ющий раствор рливают в регенерируемый при перемешивании. Через несколько минут реакци  заканчиваетс  и раствор отдел ют от осадка фильтрацией или центрифугированием, причем дл  укрупнени  осадка раствор отстаивают около трех часов . В отфильтрованный раствор ввод т щелочь до нейтральной реакции и, в случае необходимости, железосинеродистый калий. Дл  контрол  процесса производ т следующие определени :The oxidizing agent is used in the form of an aqueous, filtered 0.7N bleach solution, in an amount calculated from the analysis of the spent bleaching solution. The oxidizing solution is poured into the regenerated with stirring. After a few minutes, the reaction is complete and the solution is separated from the precipitate by filtration or centrifugation, and the solution is settled for about three hours to consolidate the precipitate. Alkali is added to the filtered solution to neutrality and, if necessary, potassium ferrocyanide. To control the process, the following definitions are made:

1.Анализ содержани  активного хлора в хлорной извести, анализ раствора окислител  и раствор  1Г1.елочи.1. Analysis of the content of active chlorine in bleach, analysis of the oxidizing solution and solution of G1 bleach.

2.Анализ отработанного отбеливающего раствора на содержание железистосинеродистого кали  и тиосульфата.2.Analysis of the spent bleaching solution on the content of potassium ferrosyneperodide and thiosulfate.

3.Анализ регенерированного отбеливающего раствора:3. Analysis of the regenerated bleaching solution:

а)на полноту окислени ;a) to complete oxidation;

б)на отсутствие ионов железа;b) the absence of iron ions;

в)на отсутствие избытка хлора;c) in the absence of excess chlorine;

г)на кислотность;d) acidity;

д)на содержание железосинеродистого кали .e) on the content of potassium ferro-synergistic.

4, Фотографическое испытание регенерированного раствора.4, Photographic test of the regenerated solution.

П р е д м е т л з о б р е т е н и  PRIORITY

Способ регенерации отбеливаю1цего раствора при обработке цветных многослойных фотоматериалов пзтем окислени  железистосинеродистого кали , отличаю ц и и с   тем, что в качестве окислител  железистосинеродистого ка .1и  примен ют раствор хлорной извести.The method of regeneration of the bleaching solution in the processing of colored multilayer photographic materials using the oxidation of ferrocyanide potassium oxide, is distinguished by the fact that bleach is used as an oxidizing agent for the iron and syrodinocular syrup.

SU4468-15A 1952-04-18 1952-04-18 The method of regeneration of the whitening bath during the production processing of color multilayer photographic materials SU97128A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4468-15A SU97128A1 (en) 1952-04-18 1952-04-18 The method of regeneration of the whitening bath during the production processing of color multilayer photographic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4468-15A SU97128A1 (en) 1952-04-18 1952-04-18 The method of regeneration of the whitening bath during the production processing of color multilayer photographic materials

Publications (1)

Publication Number Publication Date
SU97128A1 true SU97128A1 (en) 1953-11-30

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Country Status (1)

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SU (1) SU97128A1 (en)

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