US3902859A - Method for separating ammonium sulfate from an aqueous solution of ammonium bisulfate and ammonium sulfate - Google Patents
Method for separating ammonium sulfate from an aqueous solution of ammonium bisulfate and ammonium sulfate Download PDFInfo
- Publication number
- US3902859A US3902859A US456763A US45676374A US3902859A US 3902859 A US3902859 A US 3902859A US 456763 A US456763 A US 456763A US 45676374 A US45676374 A US 45676374A US 3902859 A US3902859 A US 3902859A
- Authority
- US
- United States
- Prior art keywords
- ammonium sulfate
- ammonium
- solution
- aqueous solution
- bisulfate
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
Definitions
- the present invention relates to a method for separating ammonium sulfate from ammonium bisulfate. and. in particular. to a method of separating ammonium sulfate from an aqueous solution containing ammonium bisulfate and organic synthesis material.
- a method for obtaining an aqueous solution of ammonium bisulfate substantially free of ammonium sulfate and any dissolved, and ammonium sulfate substantially free of organic impurities from an aqueous solution containing ammonium bisulfate, ammonium sulfate, and dissolved organic impurities consisting essentially of concentrating said solution to the maximum possible while maintaining the salts in solution, adding to said'concentrated solution an alcohol selected from the group consisting of methanol, ethanol, propanol, butanol, and isopropanol, in an amount of from about 400 to 500 percent by weight of the ammonium sulfate present in the solution and effective to precipitate substantially all of said ammonium sulfate substantially free of ammonium bisulfate and organic impurities, removing said precipitated ammonium sulfate to form a remaining solution. and separating said alcohol from said remaining solution to obtain said aqueous solution of ammonium bisulfate.
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US456763A US3902859A (en) | 1973-02-15 | 1974-04-01 | Method for separating ammonium sulfate from an aqueous solution of ammonium bisulfate and ammonium sulfate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33266873A | 1973-02-15 | 1973-02-15 | |
US456763A US3902859A (en) | 1973-02-15 | 1974-04-01 | Method for separating ammonium sulfate from an aqueous solution of ammonium bisulfate and ammonium sulfate |
Publications (1)
Publication Number | Publication Date |
---|---|
US3902859A true US3902859A (en) | 1975-09-02 |
Family
ID=26988323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US456763A Expired - Lifetime US3902859A (en) | 1973-02-15 | 1974-04-01 | Method for separating ammonium sulfate from an aqueous solution of ammonium bisulfate and ammonium sulfate |
Country Status (1)
Country | Link |
---|---|
US (1) | US3902859A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0126058A1 (en) * | 1983-05-13 | 1984-11-21 | MONSANTO p.l.c. | Inorganic salt recovery method |
EP0384198A1 (en) * | 1989-02-18 | 1990-08-29 | Ec Erdölchemie Gmbh | Process for the separation of ammonium sulfate from waste streams with high content of tar coming from the preparation of (meth) acrylonitrile |
EP0863135A2 (en) * | 1997-03-04 | 1998-09-09 | Sumitomo Chemical Company, Limited | Method for separating ammonium sulfate and ammonium bisulfate from each other and process for producing 2-hydroxy-4-methylthiobutanoic acid utilizing the method |
US20110044879A1 (en) * | 2006-03-22 | 2011-02-24 | Soos Janos Gyoergy | Process for the treatment and purification of dangerous wastes containing ammonium salts, particularly ammonium chloride, derived from pharmaceutical and chemical technologies |
US9102951B2 (en) | 2011-08-31 | 2015-08-11 | Iogen Energy Corporation | Process for recovering salt during a lignocellulosic conversion process |
KR102118040B1 (en) * | 2019-08-19 | 2020-06-02 | 에코매니지먼트코리아홀딩스 주식회사 | Method of recovering ammonium sulfate from wastewater |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2002797A (en) * | 1932-10-21 | 1935-05-28 | Gustave T Reich | Alkali metal compound recovery from waste organic mixtures |
US2013438A (en) * | 1930-12-22 | 1935-09-03 | Koppers Co Delaware | Recovery of salts from salt solutions |
US2386985A (en) * | 1944-10-11 | 1945-10-16 | Koppers Co Inc | Process for the recovery of ammonium thiosulphate and thiocyanate |
US2666687A (en) * | 1948-11-01 | 1954-01-19 | Union Oil Co | Process for the manufacture of crystalline ammonium sulfite monohydrate |
US3366681A (en) * | 1964-10-02 | 1968-01-30 | Stamicarbon | Process for the recovery of methionine |
US3408157A (en) * | 1966-06-01 | 1968-10-29 | Standard Oil Co | Process for recovery of ammonium salts from process waste streams and disposal thereof |
US3549706A (en) * | 1965-02-01 | 1970-12-22 | Sumitomo Chemical Co | Process for separating acrylamide |
US3576607A (en) * | 1968-04-11 | 1971-04-27 | Standard Oil Co Ohio | Process for the recovery of ammonium salts from process waste streams |
US3597168A (en) * | 1968-12-11 | 1971-08-03 | Kali Veb K | Recovery of large grains of na2so4 and (nh4)2so4 from aqueous methanol solutions |
US3709666A (en) * | 1968-10-19 | 1973-01-09 | Stamicarbon | Process of recovering ammonium sulphate from an aqueous solution containing ammonium sulphate and methionine |
-
1974
- 1974-04-01 US US456763A patent/US3902859A/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2013438A (en) * | 1930-12-22 | 1935-09-03 | Koppers Co Delaware | Recovery of salts from salt solutions |
US2002797A (en) * | 1932-10-21 | 1935-05-28 | Gustave T Reich | Alkali metal compound recovery from waste organic mixtures |
US2386985A (en) * | 1944-10-11 | 1945-10-16 | Koppers Co Inc | Process for the recovery of ammonium thiosulphate and thiocyanate |
US2666687A (en) * | 1948-11-01 | 1954-01-19 | Union Oil Co | Process for the manufacture of crystalline ammonium sulfite monohydrate |
US3366681A (en) * | 1964-10-02 | 1968-01-30 | Stamicarbon | Process for the recovery of methionine |
US3549706A (en) * | 1965-02-01 | 1970-12-22 | Sumitomo Chemical Co | Process for separating acrylamide |
US3408157A (en) * | 1966-06-01 | 1968-10-29 | Standard Oil Co | Process for recovery of ammonium salts from process waste streams and disposal thereof |
US3576607A (en) * | 1968-04-11 | 1971-04-27 | Standard Oil Co Ohio | Process for the recovery of ammonium salts from process waste streams |
US3709666A (en) * | 1968-10-19 | 1973-01-09 | Stamicarbon | Process of recovering ammonium sulphate from an aqueous solution containing ammonium sulphate and methionine |
US3597168A (en) * | 1968-12-11 | 1971-08-03 | Kali Veb K | Recovery of large grains of na2so4 and (nh4)2so4 from aqueous methanol solutions |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0126058A1 (en) * | 1983-05-13 | 1984-11-21 | MONSANTO p.l.c. | Inorganic salt recovery method |
EP0384198A1 (en) * | 1989-02-18 | 1990-08-29 | Ec Erdölchemie Gmbh | Process for the separation of ammonium sulfate from waste streams with high content of tar coming from the preparation of (meth) acrylonitrile |
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 |
EP0863135A2 (en) * | 1997-03-04 | 1998-09-09 | Sumitomo Chemical Company, Limited | Method for separating ammonium sulfate and ammonium bisulfate from each other and process for producing 2-hydroxy-4-methylthiobutanoic acid utilizing the method |
EP0863135A3 (en) * | 1997-03-04 | 1998-12-09 | Sumitomo Chemical Company, Limited | Method for separating ammonium sulfate and ammonium bisulfate from each other and process for producing 2-hydroxy-4-methylthiobutanoic acid utilizing the method |
US5973198A (en) * | 1997-03-04 | 1999-10-26 | Sumitomo Chemical Company, Limited | Method for separating ammonium sulfate and ammonium bisulfate from each other and process for producing 2-hydroxy-4-methylthiobutanoic acid utilizing the method |
US20110044879A1 (en) * | 2006-03-22 | 2011-02-24 | Soos Janos Gyoergy | Process for the treatment and purification of dangerous wastes containing ammonium salts, particularly ammonium chloride, derived from pharmaceutical and chemical technologies |
US9102951B2 (en) | 2011-08-31 | 2015-08-11 | Iogen Energy Corporation | Process for recovering salt during a lignocellulosic conversion process |
KR102118040B1 (en) * | 2019-08-19 | 2020-06-02 | 에코매니지먼트코리아홀딩스 주식회사 | Method of recovering ammonium sulfate from wastewater |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4045543A (en) | Production of potassium sulfate and hydrogen chloride | |
EP0297647B1 (en) | Process for the production of alkylene carbonate | |
JP2007063141A (en) | Method for producing methionine | |
US4212991A (en) | Single-stage process for the preparation of terephthalic acid | |
US3902859A (en) | Method for separating ammonium sulfate from an aqueous solution of ammonium bisulfate and ammonium sulfate | |
HU202282B (en) | Process for separating 2-keto-l-gulonic acid from fermentation juice | |
US2331235A (en) | Purification of salt solutions | |
US4952542A (en) | Process for the production of alkylene carbonate and recovery of catalyst | |
US3325493A (en) | Process for producing cyanuric acid from melamine purification waste mother liquor | |
US3274243A (en) | Preparation of alkanoic thioamides | |
US3262973A (en) | Preparation of alkali metal formates in alcoholic medium | |
US3429924A (en) | Process for the manufacture of c-nitrosoarylamines | |
US3655719A (en) | Amino carbonate adducts and method of making same | |
JPS5926612B2 (en) | D D'-2 2'- (ethylenediimino) di-1-butanol | |
US5182092A (en) | Hydroxylammonium nitrate process | |
US4327070A (en) | Production of potassium formate from potassium sulfate | |
CS231971B2 (en) | Purification method for mercaptobenzothiazole | |
US2975177A (en) | Intermediate product | |
US4647669A (en) | Process for the purification of mercaptobenzothizaole | |
US3423411A (en) | Purification of melamine solutions | |
US3748355A (en) | Crystallization process for the recovery of alkaline nitrilotriacetates | |
JPS6131047B2 (en) | ||
US3236885A (en) | Process for purifying pyromellitic acid | |
US3859425A (en) | Process for recovery of sulfur values | |
US3917685A (en) | Process for preparing trisodium nitrilotriacetate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALGEMENE BANK NEDERLAND N.V., HOUSTON AGENCY Free format text: SECURITY INTEREST;ASSIGNOR:ISC ACQUISTION COMPANY;REEL/FRAME:004994/0188 Effective date: 19881215 |
|
AS | Assignment |
Owner name: ISC ACQUISITION COMPANY, A CORP. OF DE., PENNSYLVA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KOPPERS COMPANY, INC.,;REEL/FRAME:005009/0188 Effective date: 19881206 |
|
AS | Assignment |
Owner name: INDSPEC CHEMICAL CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:ISC ACQUISITION COMPANY;REEL/FRAME:005138/0231 Effective date: 19890502 |
|
AS | Assignment |
Owner name: INDSPEC CHEMICAL CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:ISC ACQUISITION COMPANY;REEL/FRAME:005142/0420 Effective date: 19890502 |