[go: up one dir, main page]

JPS52153899A - Treating method for ammonium sulfate solution, by-product of caprolactam production - Google Patents

Treating method for ammonium sulfate solution, by-product of caprolactam production

Info

Publication number
JPS52153899A
JPS52153899A JP7035676A JP7035676A JPS52153899A JP S52153899 A JPS52153899 A JP S52153899A JP 7035676 A JP7035676 A JP 7035676A JP 7035676 A JP7035676 A JP 7035676A JP S52153899 A JPS52153899 A JP S52153899A
Authority
JP
Japan
Prior art keywords
ammonium sulfate
product
sulfate solution
caprolactam production
treating method
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
JP7035676A
Other languages
Japanese (ja)
Inventor
Tadahiko Yoshimori
Yukio Inaba
Yasuhisa Chiba
Takeshi Fukue
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.)
Ube Corp
Original Assignee
Ube Industries Ltd
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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP7035676A priority Critical patent/JPS52153899A/en
Publication of JPS52153899A publication Critical patent/JPS52153899A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PURPOSE: To recover by separation high-quality ammonium sulfate and to treat effectively a waste soln. contg. concentrated org. impurities, by recovering by crystallization ammonium sulfate in an ammonium sulfate soln., a by-product of caprolactam production, by the addition of lower alcohol, and subjecting the residual soln. to double decomposition.
COPYRIGHT: (C)1977,JPO&Japio
JP7035676A 1976-06-17 1976-06-17 Treating method for ammonium sulfate solution, by-product of caprolactam production Pending JPS52153899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7035676A JPS52153899A (en) 1976-06-17 1976-06-17 Treating method for ammonium sulfate solution, by-product of caprolactam production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7035676A JPS52153899A (en) 1976-06-17 1976-06-17 Treating method for ammonium sulfate solution, by-product of caprolactam production

Publications (1)

Publication Number Publication Date
JPS52153899A true JPS52153899A (en) 1977-12-21

Family

ID=13429060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7035676A Pending JPS52153899A (en) 1976-06-17 1976-06-17 Treating method for ammonium sulfate solution, by-product of caprolactam production

Country Status (1)

Country Link
JP (1) JPS52153899A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141732A (en) * 1989-02-18 1992-08-25 Ec Erdolchemie Gmbh Process for the removal of ammonium sulphate from tarrich waste streams from the production of (meth) acrylonitrile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141732A (en) * 1989-02-18 1992-08-25 Ec Erdolchemie Gmbh Process for the removal of ammonium sulphate from tarrich waste streams from the production of (meth) acrylonitrile

Similar Documents

Publication Publication Date Title
CA2057362A1 (en) Process for working up aqueous solutions containing hydrogen sulfide, hydrogen cyanide and ammonia
CA2299475A1 (en) Method for producing an aqueous solution of free hydroxylamine
CA2175053A1 (en) Perchlorate Removal Process
JPS5367959A (en) Method of treating organic waste water
JPS51141793A (en) Method of forming calcium sulfate whisker
JPS52153899A (en) Treating method for ammonium sulfate solution, by-product of caprolactam production
ES2004462A6 (en) Method for producing pure boric acid
JPS5340609A (en) Purifying method for yttrium
JPS5367678A (en) Treating method for by-product formed in process of treating exhaust gasby irradiation of radiation
JPS5423070A (en) Removing method for hydrogen sulfide in mother liquor of ammonium sulfate
JPS53120696A (en) Desalting method of causting soda obtained from diaphragm method
JPS5226555A (en) Method for recovering polyamides
JPS5370553A (en) Method of treating waste water
JPS5386700A (en) Production of pure phosphoric acid using diisopropylcarbinol
JPS53125300A (en) Treating method for by-product ammonium sulfate
JPS5363270A (en) Treating method for waste fluid of washing for elements of molding machinefor molding light metals
JPS5379815A (en) Recovery of adipic acid
JPS5227499A (en) Process for recovery of polyurethane resins
JPS5390650A (en) Waste water treatment
JPS5251753A (en) Method of clarifying textile-containing organic wastewater
MX9701265A (en) Process for treating an aqueous kf waste stream and for converting kf into hf and koh.
JPS5277009A (en) Recovery process for fatty acid
JPS52103849A (en) Electrolytic process for treating drain waste water
JPS51120049A (en) Method of excretion treatment
JPS53120698A (en) Purification method of caustic soda obtained from diaphragm method