SU1159881A1 - Method of obtaining phosphoric acid - Google Patents
Method of obtaining phosphoric acid Download PDFInfo
- Publication number
- SU1159881A1 SU1159881A1 SU813367338A SU3367338A SU1159881A1 SU 1159881 A1 SU1159881 A1 SU 1159881A1 SU 813367338 A SU813367338 A SU 813367338A SU 3367338 A SU3367338 A SU 3367338A SU 1159881 A1 SU1159881 A1 SU 1159881A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phosphoric acid
- pulp
- mixing
- washing
- filtration
- Prior art date
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- Paper (AREA)
Abstract
СГОСОБ ПОЛУЧЕНИЯ ФОСФОРНОЙ КИСЛОТЫ, включающий смешивание. карбонатсодержащего фосфатного сырь с оборотной фосфорной кислотой , обработку пульпы серной кислотой , кристаллизацию сульфата кальци , отделение фосфорной кислоты фильтрацией и промывку осадка с подачей промывных вод в качестве оборотной фосфорной кислоты на стадию смешени , отличающийс тем, что, с целью ускорени процесса фильтрах й, в .течение 0,5-20 мин 1 после смешени от пульпы отдел ют пенный продукт до его весового соотношени с пульпой 1:The PSR of obtaining phosphoric acid, including mixing. carbonate-containing phosphate raw material with circulating phosphoric acid, pulp treatment with sulfuric acid, crystallization of calcium sulfate, separation of phosphoric acid by filtration, and washing the precipitate with washing water as a circulating phosphoric acid at the mixing stage, characterized in that The flow of 0.5-20 min 1 after mixing pulp separates the foam product to its weight ratio with pulp 1:
Description
СПSP
соwith
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813367338A SU1159881A1 (en) | 1981-12-17 | 1981-12-17 | Method of obtaining phosphoric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813367338A SU1159881A1 (en) | 1981-12-17 | 1981-12-17 | Method of obtaining phosphoric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1159881A1 true SU1159881A1 (en) | 1985-06-07 |
Family
ID=20987217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813367338A SU1159881A1 (en) | 1981-12-17 | 1981-12-17 | Method of obtaining phosphoric acid |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1159881A1 (en) |
-
1981
- 1981-12-17 SU SU813367338A patent/SU1159881A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 569533, кл. С 01 В 25/22, 1975. Авторское свидетельство СССР № 513930, KJi. С 01 В 25/22, 1974. * |
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