RU97107902A - METHOD FOR PRODUCING POTASSIUM PHOSPHATES - Google Patents

METHOD FOR PRODUCING POTASSIUM PHOSPHATES

Info

Publication number
RU97107902A
RU97107902A RU97107902/25A RU97107902A RU97107902A RU 97107902 A RU97107902 A RU 97107902A RU 97107902/25 A RU97107902/25 A RU 97107902/25A RU 97107902 A RU97107902 A RU 97107902A RU 97107902 A RU97107902 A RU 97107902A
Authority
RU
Russia
Prior art keywords
potassium
potassium phosphates
producing potassium
treatment
phosphoric acid
Prior art date
Application number
RU97107902/25A
Other languages
Russian (ru)
Other versions
RU2105713C1 (en
Inventor
Г.А. Кесоян
П.А. Лере-Планд
Н.Д. Доброскокина
А.Б. Никитин
Original Assignee
Открытое акционерное общество "РЕАТЭКС"
Filing date
Publication date
Application filed by Открытое акционерное общество "РЕАТЭКС" filed Critical Открытое акционерное общество "РЕАТЭКС"
Priority to RU97107902A priority Critical patent/RU2105713C1/en
Priority claimed from RU97107902A external-priority patent/RU2105713C1/en
Application granted granted Critical
Publication of RU2105713C1 publication Critical patent/RU2105713C1/en
Publication of RU97107902A publication Critical patent/RU97107902A/en

Links

Claims (2)

1. Способ получения фосфатов калия, включающий обработку углекислых солей фосфорной кислотой, отделение однозамещенного фосфорнокислого калия от фильтрата центрифугированием, отличающийся тем, что обработку ведут при комнатной температуре, а в фильтрат добавляют едкое кали или термическую фосфорную кислоту до достижения в нем pH 7,9 - 8,3 и смесь дегидратируют при температуре 420 - 500oC с получением триполифосфата калия.1. A method of producing potassium phosphates, including the treatment of carbonic salts with phosphoric acid, the separation of monosubstituted potassium phosphate from the filtrate by centrifugation, characterized in that the treatment is carried out at room temperature, and caustic potassium or thermal phosphoric acid is added to the filtrate until it reaches a pH of 7.9 8.3 and the mixture is dehydrated at a temperature of 420-500 ° C. to obtain potassium tripolyphosphate. 2. Способ по п. 1, отличающийся тем, что в качестве углекислых солей используют технический поташ или отфильтрованный осадок, полученный при карбонизации технической калийной щелочи. 2. The method according to p. 1, characterized in that as carbonic salts use technical potash or filtered sediment obtained by carbonization of industrial potassium alkali.
RU97107902A 1997-05-14 1997-05-14 Method for production of potassium phosphates RU2105713C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97107902A RU2105713C1 (en) 1997-05-14 1997-05-14 Method for production of potassium phosphates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97107902A RU2105713C1 (en) 1997-05-14 1997-05-14 Method for production of potassium phosphates

Publications (2)

Publication Number Publication Date
RU2105713C1 RU2105713C1 (en) 1998-02-27
RU97107902A true RU97107902A (en) 1998-10-10

Family

ID=20192945

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97107902A RU2105713C1 (en) 1997-05-14 1997-05-14 Method for production of potassium phosphates

Country Status (1)

Country Link
RU (1) RU2105713C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100358801C (en) * 2005-12-29 2008-01-02 云南省化工研究院 Potassium tripolyphosphate preparation method

Similar Documents

Publication Publication Date Title
CA2020950A1 (en) Process for purifying aminomethylenephosphonic acids
DE3060486D1 (en) Process for converting residues from the purification of phosphoric acid by extraction into solid waste products suitable for deposition
RU97107902A (en) METHOD FOR PRODUCING POTASSIUM PHOSPHATES
RU2318724C1 (en) Method of production of the alkali metals phosphates
RU2105713C1 (en) Method for production of potassium phosphates
SU1177270A1 (en) Method of producing sodium phosphate
CA2402057A1 (en) Process for purifying aqueous buffer solutions
RU97109439A (en) METHOD FOR RARE EARTH EXTRACTION
SU1495293A1 (en) Method of producing sodium tripolyphosphate
CA1262027C (en) Process for the preparation of substantially crystalline calcium sodium metaphosphate
JPS5532750A (en) Production of ammonium dihydrogenphosphate crystal
SU1013401A1 (en) Method of producing barium phosphite
SU639812A1 (en) Method of preparing sodium silicon-fluoride
SU484840A1 (en) The method of chemical sterilization and regeneration of soil substitutes
SU1518299A1 (en) Method of producing calcium hydrogene phosphate
SU952734A1 (en) Process for purifying sodium chloride brine from calcium ions
JPS5628694A (en) Treatment of water containing phosphate and suspended solid
SU739043A1 (en) Method of processing spent electrolyte of potassium permanganate production
RU2250197C1 (en) Method of recovering strontium-containing concentrate
SU1518298A1 (en) Method of producing calcium hydrogene phosphate
SU1101406A1 (en) Method for producing sodium tripolyphosphate
SU1574583A1 (en) Method of obtaining phosporus zeolite-base fertilizer
RU1775356C (en) Method for separating pulp of phosphoric acid and phosphogypsum while producing extracted phosphoric acid
SU1111987A1 (en) Method for producing sodium tripolyphosphate
RU96119145A (en) METHOD FOR PRODUCING PURE SULFURIC NICKEL