JPS5641814A - Purifying method for wet process phosphoric acid solution - Google Patents

Purifying method for wet process phosphoric acid solution

Info

Publication number
JPS5641814A
JPS5641814A JP11524879A JP11524879A JPS5641814A JP S5641814 A JPS5641814 A JP S5641814A JP 11524879 A JP11524879 A JP 11524879A JP 11524879 A JP11524879 A JP 11524879A JP S5641814 A JPS5641814 A JP S5641814A
Authority
JP
Japan
Prior art keywords
filter
phosphoric acid
fluid
plates
chamber
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP11524879A
Other languages
Japanese (ja)
Inventor
Ryuichi Kichise
Minoru Ieda
Takeki Shinozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP11524879A priority Critical patent/JPS5641814A/en
Publication of JPS5641814A publication Critical patent/JPS5641814A/en
Pending legal-status Critical Current

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  • Filtration Of Liquid (AREA)

Abstract

PURPOSE: To purify a crude phosphoric acid fluid obtd. by decomposing phosphate ore with sulfuric acid by filtering the fluid using a filter provided with filter plates with filter cloth attached to obtain a clarified phosphoric acid soln. and discharging caky impurities accumulated in the filter chamber together with a washing liq. by agitation.
CONSTITUTION: When impurities suspending or floating in a crude phosphoric acid fluid obtd. by decomposing phosphate ore with sulfuric acid are separated and removed, the fluid is filtered using filter 5 provided with a plurality of filter plates A with filter cloth B attached to obtain a clarified phosphoric acid soln. Caky impurities accumulated in filter chamber F of filter 5 are then separated and removed from cake discharge hole P of filter 5 by allowing a washing liq. to flow into chamber F from the inside of each plate A and rotating shaft G provided with agitating plates H to perform agitation. Thus, the fluid is efficiently filtered and purified without requiring a filter aid.
COPYRIGHT: (C)1981,JPO&Japio
JP11524879A 1979-09-10 1979-09-10 Purifying method for wet process phosphoric acid solution Pending JPS5641814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11524879A JPS5641814A (en) 1979-09-10 1979-09-10 Purifying method for wet process phosphoric acid solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11524879A JPS5641814A (en) 1979-09-10 1979-09-10 Purifying method for wet process phosphoric acid solution

Publications (1)

Publication Number Publication Date
JPS5641814A true JPS5641814A (en) 1981-04-18

Family

ID=14657991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11524879A Pending JPS5641814A (en) 1979-09-10 1979-09-10 Purifying method for wet process phosphoric acid solution

Country Status (1)

Country Link
JP (1) JPS5641814A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113501538A (en) * 2021-07-31 2021-10-15 华能秦煤瑞金发电有限责任公司 Gypsum dehydration edulcoration device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512066A (en) * 1974-05-13 1976-01-09 Artisan Ind

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512066A (en) * 1974-05-13 1976-01-09 Artisan Ind

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113501538A (en) * 2021-07-31 2021-10-15 华能秦煤瑞金发电有限责任公司 Gypsum dehydration edulcoration device
CN113501538B (en) * 2021-07-31 2022-12-27 华能秦煤瑞金发电有限责任公司 Gypsum dehydration edulcoration device

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