| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Method of preparing insoluble hydrolysable tannin and method of treating waste liquid with the tannin | US7615 | 1993-01-22 | US5300677A | 1994-04-05 | Wataru Shirato; Yoshinobu Kamei |
| An insoluble hydrolysable tannin is prepared by dissolving a hydrolysable tannin powder in aqueous ammonia; mixing the resulting solution with an aldehyde aqueous solution to form a precipitate; heating the precipitate; mixing the heated precipitate with a mineral acid; and filtering the resulting mixture to leave a residue on a filter. The inventive insoluble tannin exhibits high adsorption properties for heavy metal elements and is insoluble in either water, acid, or alkali. Methods for treating waste liquids and recovering heavy metal elements therefrom using the inventive insoluble tannin are disclosed. | ||||||
| 102 | Method of preparing insoluble hydrolysable tannin and method of treating waste liquid with the tannin | US7614 | 1993-01-22 | US5296629A | 1994-03-22 | Wataru Shirato; Yoshinobu Kamei |
| An insoluble hydrolysable tannin is prepared by dissolving a hydrolysable tannin powder in aqueous ammonia; mixing the resulting solution with an aldehyde aqueous solution to form a precipitate; heating the precipitate; mixing the heated precipitate with a mineral acid; and filtering the resulting mixture to leave a residue on a filter. The inventive insoluble tannin exhibits high adsorption properties for heavy metal elements and is insoluble in either water, acid, or alkali. Methods for treating waste liquids and recovering heavy metal elements therefrom using the inventive insoluble tannin are disclosed. | ||||||
| 103 | Substituted-ammonium humate fluid loss control agents for oil-based drilling muds | US699845 | 1985-02-08 | US4889645A | 1989-12-26 | William C. Firth, Jr. |
| The disclosure is of particular substituted ammonium humates useful as fluid loss control agents in oil-based drilling fluids. The humate bears a unique compositional make-up. | ||||||
| 104 | Process for the production of regenerated humic acids from coal | US129827 | 1987-12-08 | US4788360A | 1988-11-29 | Vincenzo Calemma; Riccardo Rausa |
| A process is disclosed for the production of humic acids, which comprises an oxidation of coal in dry phase with oxygen or mixtures of oxygen and nitrogen in a fluidized-bed reactor, by using coal with a granulometry comprised within the range of from 100 .mu.m to 3 mm and operating at a temperature comprised within the range of from 150.degree. to 300.degree. C., under a partial pressure of oxygen comprised within the range of from 1.1 abs.atm. to 10 abs.atm., for a contact time comprised within the range of from 30 minutes to 600 minutes. | ||||||
| 105 | Phenol-aldehyde resin composition containing pecan pith extract and an aldehyde | US814920 | 1977-07-12 | US4201699A | 1980-05-06 | Chia-Ming Chen |
| A phenol-aldehyde resin composition consisting essentially of the polymerization product of an alkali organic extract of peanut hulls and pecan piths polymerized with an aldehyde. The peanut hull and pecan pith alkali organic extract are polymerized with an aldehyde and used to formulate resins suitable for use in polywood adhesives, in molding compounds, in wood bonding agents and in cellulosic material impregnating agents. | ||||||
| 106 | Etherification of bark extracts | US673614 | 1976-04-05 | US4064166A | 1977-12-20 | Karl David Sears; Ronald Leroy Casebier |
| A derivative of coniferous tree barks is produced by reacting at elevated temperatures an alkaline polyphenolic solution of a coniferous bark extract in the proportion of from 0.1, and preferably from 0.5 to 8.0 moles of a carbonyl-activated halocompound per mole of monomeric unit in the polyphenol of the formula ##STR1## or with a cyano-activated halocompound of the formula ##STR2## wherein R' is H, HC.dbd.O or R--C .dbd.O where R is alkyl or aryl; X is halogen and R" is alkyl, OH, oxyalkyl, aryl or OM in which M is a metal. The starting materials are the alkaline extracts resulting from the digestion of coniferous tree barks with an alkaline aqueous solution or preferably the sulfonated acid extracts of such barks. The reaction products are etherified polyphenolic compounds which are water-soluble and possess chelating characteristics. | ||||||
| 107 | Thiohumic acid, a process for preparing same, and its use for absorbing heavy metal ions | US426561 | 1973-12-20 | US3932494A | 1976-01-13 | Hisayoshi Yoshida; Takato Nakamura; Masanao Nakagawa; Seiji Arita; Toshiharu Miki |
| The compound thiohumic acid resulting from replacing at least a part of the carboxyl groups in humic acid by thiocarboxyl groups, i.e., ##EQU1## as well as a heavy metal adsorbent containing thiohumic acid as its active ingredient. This new compound is obtained by treating humic acid with a halogenating agent to form humic acid halide and treating such halide with a thiolating agent. | ||||||
| 108 | Oxidation process employing nitric acid catalysis for the preparation of humates from coal | US3709931D | 1968-10-09 | US3709931A | 1973-01-09 | PROELL W; SELIN C; HOLBROOK S; HAMMOND F |
| AN OXIDATION PROCESS EMPOLYING NITRIC ACID CATALYSIS FOOR THE PREPARATION OF HUMATES AND OTHER ORGANIC CHEMICALS FROM COL. THE PROCESS COMPRISES THE STEP OF NITRODUCING OXYGEN AND A CATALYTIC AMOUNT OF NITRIC ACID INTO A REACTOR CONTAINING A PULVERIZED COAL, TO WHICH 5% TO 35% OF MOISTURE AND 25% OF THE TOTAL AMOUNT OF NITRIC ACID TO BE EMPLOYED HAS BEEN ADMIXED, MAINTAINING THE TEMPERSTURE OF THIS REACTOR AT BETWEEN ABOUT 150* F. TO ANOUT 225* F., TERMINATING THE REACTION WITHIN AT LEAST TEN HOURS AND RECOVERING HUNATES AND OTHER ORGANIC CHEMICALS.
|
||||||
| 109 | Oxidation process employing nitrogen oxide catalysis for the preparation of humates from coal | US3702340D | 1968-10-08 | US3702340A | 1972-11-07 | SELIN CLIFFORD E; LYON LLOYD B; HOLBROOK STANFORD T; HAMMOND FRANCIS H |
| AN OXIDATION PROCESS EMPLOYING NITROGEN OXIDE CATALYSIS FOR THE PREPARATION OF HUMATES AND OTHER ORGANIC CHEMICALS FROM COAL. THE PROCESS COMPRISES THE STEPS OF INTRODUCING OXYGEN AND A CATALYTIC AMOUNT OF A NITROGEN OXIDE INTO A REACTOR CONTAINING A PVERIZED COAL, TO WHICH 5% TO 50% MOISTURE HAS BEEN ADMIXED, MAINTAINING THE REACTOR AT A TEMPERATURE BELOW THE BOILING POINT OF WATER, TERMINATING THE REACTION WITHIN AT LEAST TEN HOURS AND RECOVERING HUMATES AND OTHER ORGANIC CHEMICALS.
|
||||||
| 110 | Solubilization of humic acids, lignites and coals | US3700728D | 1968-12-30 | US3700728A | 1972-10-24 | MOSCHOPEDIS SPEROS E; CZAKERT ERNST; CREIGHTON STEPHEN M |
| A process for the preparation of water-soluble products from humic acids, lignites and pre-oxidized coals which are reacted with a sulfonating agent to form a sulfite or a bisulfite in situ, in an alkaline medium. The water-soluble product is useable as a well-drilling fluid.
|
||||||
| 111 | Method of forming a solid plant nutrient from leonardite humate bearing ore | US3544296D | 1967-10-20 | US3544296A | 1970-12-01 | KARCHER JOHN C |
| 112 | Production of humic acid | US33284163 | 1963-12-23 | US3398186A | 1968-08-20 | SCHWARTZ NELSON N |
| 113 | Dispersion of long chain alkyl ammonium humate in organic liquid | US33227963 | 1963-12-20 | US3379650A | 1968-04-23 | BEASLEY JR AUGUSTUS EARL; COWAN JACK C; GAINEY HUGH G |
| 114 | Process of solubilizing lignite and producing humates | US41890064 | 1964-12-16 | US3325537A | 1967-06-13 | BEASLEY JR AUGUSTUS EARL; COWAN JACK C |
| 115 | Method of forming a granular ammonium humate fertilizer | US15044661 | 1961-11-06 | US3111404A | 1963-11-19 | KARCHER JOHN C; CANFIELD CHARLES L |
| 116 | Method of manufacturing ammonium nitrohumate | US1517560 | 1960-03-15 | US3030412A | 1962-04-17 | KOZO HIGUCHI; MICHIO TSUYUGUCHI; TETSURO OSA; KOJI ANDO |
| 117 | Process for treating humus materials | US71954458 | 1958-03-06 | US2992093A | 1961-07-11 | BURDICK EVERETTE M |
| 118 | Method of dyeing sponges | US75170734 | 1934-11-06 | US2056166A | 1936-10-06 | MILTON COHN |
| 119 | Process of producing plastic products | US36579529 | 1929-05-24 | US1961588A | 1934-06-05 | JONES LEMUEL R |
| 120 | Methods for the desolventization of bagasse | US15424224 | 2017-02-03 | US10132563B2 | 2018-11-20 | Yingyi Huang; Mark W. Smale; William M. Cole |
| Provided herein are methods for the removal of organic solvents from wet bagasse. The use of the methods result in dried bagasse that contains no more than 1 weight percent organic solvents. | ||||||
QQ群二维码
意见反馈
意见反馈