SU1255567A1 - Method of producing cadmium diphosphate - Google Patents

Method of producing cadmium diphosphate Download PDF

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Publication number
SU1255567A1
SU1255567A1 SU843856199A SU3856199A SU1255567A1 SU 1255567 A1 SU1255567 A1 SU 1255567A1 SU 843856199 A SU843856199 A SU 843856199A SU 3856199 A SU3856199 A SU 3856199A SU 1255567 A1 SU1255567 A1 SU 1255567A1
Authority
SU
USSR - Soviet Union
Prior art keywords
cadmium
diphosphate
heat treatment
product
producing cadmium
Prior art date
Application number
SU843856199A
Other languages
Russian (ru)
Inventor
Владимир Васильевич Печковский
Раиса Яковлевна Мельникова
Людмила Спиридоновна Становая
Ирина Евгеньевна Малашонок
Original Assignee
Белорусский Ордена Трудового Красного Знамени Технологический Институт Им.С.М.Кирова
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 Белорусский Ордена Трудового Красного Знамени Технологический Институт Им.С.М.Кирова filed Critical Белорусский Ордена Трудового Красного Знамени Технологический Институт Им.С.М.Кирова
Priority to SU843856199A priority Critical patent/SU1255567A1/en
Application granted granted Critical
Publication of SU1255567A1 publication Critical patent/SU1255567A1/en

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Description

Изобретение относитс  к получению фосфатов двухвалентных металлов, используемых дл  изготовлени  люминофоров , различных катализаторов.The invention relates to the preparation of divalent metal phosphates used in the manufacture of phosphors, various catalysts.

Цель изобретени  - повьшение вы- хада продукта и упрощение процесса.The purpose of the invention is to increase the product outlet and simplify the process.

Пример. Из нитрата кадми  и фосфорной кислоты готов т фосфорио кислый раствор нитрата, кадми  с мол рным соотношением Cd /P0,, равным 1;12,5, упаривают при 170°С до выпа- деии  мелкокристаллического осадка, который отдел нзт от маточного раствора , промывают и сушат. Рентгенофазо- вым и ИК-спектроконическим методами анализа устанавливают, что полученный продукт чистый дифосфат кадми  ..Example. A phosphoric acid solution of nitrate is prepared from cadmium nitrate and phosphoric acid, cadmium with a molar ratio of Cd / P0 of 1; 12.5, is evaporated at 170 ° C until a fine-crystalline precipitate is precipitated, which is separated from the mother liquor, washed and dried. X-ray phase and IR spectroscopic methods of analysis establish that the resulting product is pure cadmium diphosphate ..

Результаты осуществлени  предлагаемого и известного способов представлены в таблице.The results of the implementation of the proposed and known methods are presented in the table.

Предла гаемьсйSuggest

1 79„601 79 „60

78,02 76,46 86,978.02 76.46 86.9

73,573.5

78,0278.02

78,0278.02

ИзвестныйFamous

Предлагаемый способ позвол ет получить чистую соль дифосфата кадми , выход которой на 6 - 7% выше, чем по известному способу. При этом температура термообработки исходных веществ снижаетс  почти на , что позвол ет значительно сократить энергозатраты на производство дифосфата кадми , что в целом упрощает процесс.The proposed method allows to obtain pure cadmium diphosphate salt, the yield of which is 6-7% higher than by a known method. At the same time, the heat treatment temperature of the starting materials is reduced almost by, which significantly reduces the energy consumption for the production of cadmium diphosphate, which generally simplifies the process.

При мол рном соотношении менее 1:12 получают аморфный осадок, а при соотношении 1:12,5 - смесь дифосфата кадми  с фосфатом кадми . При температуре термообработки ниже 150 С получаемый продукт представл ет собой смесь фосфата и кислого фосфата кадми , а при температуре выше образуютс  ортофос- фаты кадми .At a molar ratio of less than 1:12, an amorphous precipitate is obtained, and at a ratio of 1: 12.5, a mixture of cadmium diphosphate and cadmium phosphate. At a heat treatment temperature below 150 ° C, the product obtained is a mixture of cadmium phosphate and acidic phosphate, and cadmium orthophosphates are formed at temperatures above.

200200

15,515.5

1:12,001: 12.00

15,515.5

5,55.5

15,515.5

1:12,25 1:12,50 1: 11,001: 12.25 1: 12.50 1: 11.00

200200

15,515.5

1:13,001: 13.00

15,5 15,515.5 15.5

1: 12,251: 12.25

1:12,251: 12.25

2:12: 1

Предлагаемый 1 150Offered 1 150

64,2864.28

+ 4 Соотношение ионов Cd /Р 0 .+ 4 The ratio of ions Cd / P 0.

Продолжение таблицыTable continuation

35,5235.52

99,98 (кристаллиCd PjOy 93,98 (кристалли- ческий) 99.98 (crystalline Cd PjOy 93.98 (crystalline)

Claims (1)

СПОСОБ ПОЛУЧЕНИЯ ДИФОСФАТА КАДМИЯ, включающий термообработку смеси соли кадмия и фосфорсодержащего реагента с последующим отделением, промывкой и сушкой продукта, отличающийся тем, что, с целью повышения выхода продукта и упрощения процесса, в качестве исходной смеси используют фосфорнокислый раствор нитрата кадмия с молярным соотношением Cd2+/P04 , равным 1:(12,0 12,5), а термообработку ведут при 150 - 170°С.METHOD FOR PRODUCING CADMIUM DIPHOSPHATE, including heat treatment of a mixture of cadmium salt and a phosphorus-containing reagent, followed by separation, washing and drying of the product, characterized in that, in order to increase the yield of the product and simplify the process, a cadmium phosphate solution with a molar ratio of Cd 2 is used as the initial mixture + / P0 4 equal to 1: (12.0 12.5), and heat treatment is carried out at 150 - 170 ° C. Q S ω с ю СЛ СП сл & мQ S ω s u SL SP sl & m
SU843856199A 1984-12-20 1984-12-20 Method of producing cadmium diphosphate SU1255567A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU843856199A SU1255567A1 (en) 1984-12-20 1984-12-20 Method of producing cadmium diphosphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU843856199A SU1255567A1 (en) 1984-12-20 1984-12-20 Method of producing cadmium diphosphate

Publications (1)

Publication Number Publication Date
SU1255567A1 true SU1255567A1 (en) 1986-09-07

Family

ID=21163058

Family Applications (1)

Application Number Title Priority Date Filing Date
SU843856199A SU1255567A1 (en) 1984-12-20 1984-12-20 Method of producing cadmium diphosphate

Country Status (1)

Country Link
SU (1) SU1255567A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Ropp R, Со, Моопеу Р„ W, Hoffman С. W. X-Ray povder diffraction pal terns ofsome cadmium phosphates. - Anal. Cham., 1961, v. 33, № 12, p. 1687 - 1689. *

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