SU580824A3 - Method of preparing potassium phosphate - Google Patents

Method of preparing potassium phosphate

Info

Publication number
SU580824A3
SU580824A3 SU7101723375A SU1723375A SU580824A3 SU 580824 A3 SU580824 A3 SU 580824A3 SU 7101723375 A SU7101723375 A SU 7101723375A SU 1723375 A SU1723375 A SU 1723375A SU 580824 A3 SU580824 A3 SU 580824A3
Authority
SU
USSR - Soviet Union
Prior art keywords
phosphoric acid
potassium phosphate
solution
treating
taken
Prior art date
Application number
SU7101723375A
Other languages
Russian (ru)
Inventor
Генри Томпсон Вильям (Ирландия)
Эрик Вортингтон Ральф (Великобритания)
Карл Дречсел Эрхард (Сша)
Ноэль Сомерс Томас (Сша)
Original Assignee
В И Х.М.Гоулдинг Лимитед (Фирма)
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 В И Х.М.Гоулдинг Лимитед (Фирма) filed Critical В И Х.М.Гоулдинг Лимитед (Фирма)
Application granted granted Critical
Publication of SU580824A3 publication Critical patent/SU580824A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Fertilizers (AREA)

Description

гидролизатом, характеризуетс  мол рным соотношением фосфора и кали , равным 4:1.hydrolyzate, characterized by a molar ratio of phosphorus and potassium, equal to 4: 1.

Загр зненный фосфат кали  осаждают путем добавлени  метанола к жидкому гидролизату при соотношении 0,75:1 по весу. Твердые вешества отфильтровывают, промывают метанолом и удал ют из систем. Содержащий кислоту фильтрат подают в дистилл ционную колонну и удал ют метанол. Получаемый при перегонке кубовой раствор, содержаш,ий 56,1% Р205, упаривают с целью получени  «суперфосфорной кнслоты 70,3% Р205. Одну треть упаренной кислоты вывод т из системы в виде «суперфосфорной кислоты, по существу не содержащей никаких посторонних примесей за исключением калк . Остающуюс  «суперфосфорную кислоту возвращают обратно в реактор дл  проведени  реакции взаимодействи  с хлористым калием. Чистый первичный кислый фосфорнокислый калий содержит 4&% PaOs и 31% KzO.The contaminated potassium phosphate is precipitated by adding methanol to the liquid hydrolyzate at a ratio of 0.75: 1 by weight. The solids are filtered, washed with methanol and removed from the systems. The acid-containing filtrate is fed to a distillation column and the methanol is removed. The distillation bottom solution, containing 56.1% of P205, is evaporated to obtain a superphosphoric acid of 70.3% of P205. One third of one stripped off acid is removed from the system in the form of "superphosphoric acid, which is essentially free of any impurities except calcium. The remaining " superphosphoric acid is returned back to the reactor for carrying out the reaction of reaction with potassium chloride. Pure potassium hydroxide contains 4 & PaOs and 31% KzO.

Пример 2. 250 г концентрированной, экстракционной фосфорной кислоты (100% НзР04) обрабатывают 93,2 г КС1 (60% КгО) при 260°С в течение 3 ч. Продукт содержит 63,3% PsOs и 20,0% КдО. Затем ввод т фосфорную кислоту (192 г 49% Р2О5) и смесь нагревают до 100°С в течение 1 часа. Добавл ют метанол к гидролизующей жидкости в отношении от 0,75 до 1% по весу. Осадок отфильтровывают , промывают метанолом и сушат. 166,1 г продукта содержит по данным анализа 45,4 Р205, 28,3;% К2О, что в расчете на калий составл ет 82%.Example 2. 250 g of concentrated, extraction phosphoric acid (100% HzP04) are treated with 93.2 g of KC1 (60% CgO) at 260 ° C for 3 hours. The product contains 63.3% PsOs and 20.0% CdO. Phosphoric acid (192 g, 49% P2O5) is then introduced, and the mixture is heated to 100 ° C for 1 hour. Methanol is added to the hydrolyzing liquid in a ratio of 0.75 to 1% by weight. The precipitate is filtered off, washed with methanol and dried. 166.1 g of the product contains, according to analysis, 45.4 P205, 28.3;% K2O, which is 82% based on potassium.

Claims (3)

1.Способ получени  фосфата кали  путем обработки хлористого кали  фосфорной кислотой при нагревании с последующим охлаждением и определением продукта от раствора, отличающийс  тем, что, с целью снижени  в продукте хлора, исходные компоненты берут в мол рном соотношении ,1 г - 5,0:1,0, предпочтительно 1,9-2,5:1,0, процесс ведут при 180-325°С, а после охлаждени  продукт реакци  обрабатывают водой или фосфорной кислотой.1. A method of producing potassium phosphate by treating potassium chloride with phosphoric acid by heating, followed by cooling and determining the product from the solution, characterized in that, in order to reduce the chlorine in the product, the initial components are taken in a molar ratio of 1 g to 5.0: 1.0, preferably 1.9-2.5: 1.0, the process is carried out at 180-325 ° C, and after cooling, the reaction product is treated with water or phosphoric acid. 2.Способ по ц. 1, отличающийс  тем, что фосфорную кислоту дл  обработки хлористого кали  берут концентрацией 60-80% PsOs.2. Method according to c. 1, characterized in that phosphoric acid for treating potassium chloride is taken at a concentration of 60-80% PsOs. 3.Способпопп. 1,2, отличающийс  тем, что после обработки раствора водой или фосфорной кислотой в него ввод т органический растворитель при весовом соотнощении органического растворител  к раствору 0,5- 3,0:1,0.3. Method. 1.2, characterized in that after treating the solution with water or phosphoric acid, an organic solvent is introduced into it at a weight ratio of the organic solvent to a solution of 0.5-3.0: 1.0. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1. Патент Франции № 1424836, кл. С 01В 25/09, 1965.1. The patent of France No. 1424836, cl. From 01B to 25/09, 1965.
SU7101723375A 1970-12-17 1971-12-07 Method of preparing potassium phosphate SU580824A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5995770 1970-12-17

Publications (1)

Publication Number Publication Date
SU580824A3 true SU580824A3 (en) 1977-11-15

Family

ID=10484746

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7101723375A SU580824A3 (en) 1970-12-17 1971-12-07 Method of preparing potassium phosphate

Country Status (15)

Country Link
AU (1) AU452587B2 (en)
BE (1) BE776793A (en)
CA (1) CA958870A (en)
DD (1) DD98892A5 (en)
DE (1) DE2161849B2 (en)
ES (1) ES397978A1 (en)
FR (1) FR2118701A5 (en)
GB (1) GB1318224A (en)
IE (1) IE35900B1 (en)
IL (1) IL38264A (en)
IT (1) IT945255B (en)
MX (1) MX3021E (en)
NL (1) NL155801B (en)
SE (1) SE370926B (en)
SU (1) SU580824A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2597117C1 (en) * 2015-07-14 2016-09-10 Открытое акционерное общество "Реатэкс" (ОАО "Реатэкс") Method of producing disubstituted potassium phosphate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8825390D0 (en) * 1988-10-31 1988-11-30 Univ Waterloo Production of chloride-free fertilizers-11
MXPA03011064A (en) 2003-12-02 2004-04-28 Grupo Cementos De Chihuahua S Cementing compositions of containing anhydrite and procedures for its fabrication.
CN116119634B (en) * 2023-04-20 2023-06-20 诸城市浩天药业有限公司 Method for improving clarity of potassium dihydrogen phosphate product prepared from corn soaking water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2597117C1 (en) * 2015-07-14 2016-09-10 Открытое акционерное общество "Реатэкс" (ОАО "Реатэкс") Method of producing disubstituted potassium phosphate

Also Published As

Publication number Publication date
IL38264A (en) 1974-10-22
FR2118701A5 (en) 1972-07-28
ES397978A1 (en) 1974-07-01
NL7116474A (en) 1972-06-20
DE2161849B2 (en) 1978-10-19
DD98892A5 (en) 1973-07-12
AU3663071A (en) 1973-06-14
SE370926B (en) 1974-11-04
IT945255B (en) 1973-05-10
NL155801B (en) 1978-02-15
BE776793A (en) 1972-04-17
GB1318224A (en) 1973-05-23
IE35900L (en) 1972-06-17
CA958870A (en) 1974-12-10
AU452587B2 (en) 1974-09-05
MX3021E (en) 1980-02-13
DE2161849A1 (en) 1972-06-22
IL38264A0 (en) 1972-01-27
IE35900B1 (en) 1976-06-23

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