SU1159881A1 - Method of obtaining phosphoric acid - Google Patents

Method of obtaining phosphoric acid Download PDF

Info

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
Application number
SU813367338A
Other languages
Russian (ru)
Inventor
Эмма Валентиновна Хлебодарова
Валентин Александрович Раков
Петр Владимирович Классен
Василий Михайлович Борисов
Надежда Владимировна Яковлева
Рискивай Якубович Якубов
Ускен Шавгиевич Сартаев
Original Assignee
Предприятие П/Я В-8830
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 Предприятие П/Я В-8830 filed Critical Предприятие П/Я В-8830
Priority to SU813367338A priority Critical patent/SU1159881A1/en
Application granted granted Critical
Publication of SU1159881A1 publication Critical patent/SU1159881A1/en

Links

Landscapes

  • 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

ооoo

0000

Claims (1)

СПОСОБ ПОЛУЧЕНИЯ ФОСФОРНОЙ КИСЛОТЫ, включающий смешивание.METHOD FOR PRODUCING PHOSPHORIC ACID, including mixing. карбонатсодержащего фосфатного сырья с оборотной фосфорной кислотой, обработку пульпы серной кислотой, кристаллизацию сульфата кальция, отделение фосфорной кислоты фильтрацией и промывку осадка с подачей промывных вод в качестве оборотной фосфорной кислоты на стадию смешения, отличающийся тем, что, с целью ускорения процесса фильтрации, в течение 0,5-20 мин ί после смешения от пульпы отделяют пенный продукт до его весового соотношения с пульпой 1:(5-10).carbonate-containing phosphate feedstock with reverse phosphoric acid, treatment of the pulp with sulfuric acid, crystallization of calcium sulfate, separation of phosphoric acid by filtration and washing of the precipitate with washing water as reverse phosphoric acid to the mixing stage, characterized in that, in order to accelerate the filtration process, during 0.5-20 min ί after mixing, the foam product is separated from the pulp to its weight ratio with pulp 1: (5-10). (Л сл с© 00 00 >(A word with © 00 00> 1 11591159
SU813367338A 1981-12-17 1981-12-17 Method of obtaining phosphoric acid SU1159881A1 (en)

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)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 569533, кл. С 01 В 25/22, 1975. Авторское свидетельство СССР № 513930, KJi. С 01 В 25/22, 1974. *

Similar Documents

Publication Publication Date Title
SU1159881A1 (en) Method of obtaining phosphoric acid
GB1220963A (en) Process for the production of phosphoric acid at a high concentration and gypsum by-product of improved quality
ATE5646T1 (en) PROCESS FOR THE PRODUCTION OF PHOSPHORIC ACID AND CALCIUM SULPHATE ANHYDRITE.
US2385259A (en) Purification of wood pulp
JPS5469579A (en) Separating method for solution
SU1149870A3 (en) Method of producing phosphoric acid
SU1051046A1 (en) Process for producing phosphoric acid
DE3563029D1 (en) Method for the neutralization of an a-zeolite filter cake
ATE18034T1 (en) PROCESS FOR PRODUCTION OF CALCIUM MONOHYDROGEN PHOSPHATE DIHYDRATE.
SU709533A1 (en) Method of preparing ammonium sulfate
SU945076A1 (en) Process for purifying phosphogypsum
RU2167815C1 (en) Method of preparing potassium sulfate
SU94877A1 (en) The method of producing iron rodanide
SU882921A1 (en) Method of phosphoric acid production
SU688117A3 (en) Method of purification of sodium sulphate from organic admixes
SU947050A1 (en) Process for producing gypsum and magnetite
SU710924A1 (en) Method of producing phosphoric acid
SU1116005A1 (en) Method of obtaining sodium sulfite
SU981213A1 (en) Process for producing phosphoric acid
SU1451158A1 (en) Method of purifying raw sulfate soap from lignin
SU781321A1 (en) Composition for isolating absorption zones and method of making same
US2042478A (en) Production of bisulphite liquor
SU1673508A1 (en) Method of phosphoric acid production
SU1031897A1 (en) Process for producing phosphoric acid
JPS5329298A (en) Production of recovered aluminum sulfate