公开(公告)号：US3900422A

公开(公告)日：1975-08-19

申请号：US40064573

申请日：1973-09-25

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TERAJIMA KAZUKI ,  TOMITA SHIGERU ,  MATSUDA YOSHINDO ,  ABE KEIJI

IPC: B01J20/22 ,  C02F1/28 ,  C02F9/00 ,  C02B1/52

CPC classification number: C02F1/286 ,  B01J20/22 ,  C02F2101/20 ,  C22B3/24 ,  Y02P10/234

Abstract: Heavy metal adsorbents comprising granules of a mixture of nitrohumic acid and at least one binder selected from the group consisting of a carboxyl group-containing polymeric compound and a water-insoluble salt thereof. These heavy metal adsorbents are produced advantageously by either a process wherein a mixture of nitrohumic acid and a carboxyl group-containing polymeric compound is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a carboxyl group-containing polymeric compound are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.

公开(公告)号：CA1036575A

公开(公告)日：1978-08-15

申请号：CA205181

申请日：1974-07-19

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TERAJIMA KAZUKI ,  TOMITA SHIGERU ,  MATSUDA YOSHINDO ,  ABE KEIJI

IPC: C09K3/32 ,  B01J20/24 ,  C02F1/28 ,  C02F3/34 ,  B01J1/22 ,  B01D15/00 ,  C02B1/14

Abstract: New adsorbents comprise granules of a mixture of nitrohumic acid and one or more proteins. These adsorbents are utilizable effectively for adsorbing heavy metals and oils contained in water. They are produced by either a process wherein a mixture of nitrohumic acid and a protein is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a protein are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.

公开(公告)号：DE2348436A1

公开(公告)日：1974-05-02

申请号：DE2348436

申请日：1973-09-26

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TERAJIMA KAZUKI ,  TOMITA SHIGERU ,  MATSUDA YOSHINDO ,  ABE KEIJI

IPC: B01J20/22 ,  C02F1/28 ,  C02F9/00 ,  C08H13/04 ,  C02C5/02

公开(公告)号：CA1063583A

公开(公告)日：1979-10-02

申请号：CA264307

申请日：1976-10-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TOMITA SHIGERU ,  MATSUDA YOSHINDO ,  TERAJIMA KAZUKI ,  ABE KEIJI

IPC: C09K3/32 ,  C02F1/28 ,  C02F1/40 ,  D06M13/02 ,  D06M15/693 ,  B01J1/22 ,  B05D5/04 ,  B05D1/38

Abstract: Title of the Invention: OIL ADSORBENT AND A METHOD OF PRODUCING SAME An oil adsorbent comprising natural fibers the surface of which is coated with a water-repellent paraffin layer which is in turn coated with an elastic rubber layer. The adsorbent is manufactured by treating the surface of the natural fibers with a paraffin emulsion, drying the fibers to form a water repellent paraffin layer thereon, treating the product with a latex, and then curing the latex to form an elastic rubber layer on the paraffin layer. The oil adsorbent has such advantages that it floats on the surface of water stably for a long period of time retaining its original form, that the contained paraffin is not back extracted by adsorbed oil and that it does not cause any trouble on burning.

公开(公告)号：DE2434632A1

公开(公告)日：1975-02-13

申请号：DE2434632

申请日：1974-07-18

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TERAJIMA KAZUKU ,  TOMITA SHIGERU ,  MATSUDA YOSHINDO ,  ABE KEIJI

IPC: C09K3/32 ,  B01J20/24 ,  C02F1/28 ,  C02F3/34

Abstract: New adsorbents comprising granules of a mixture of nitrohumic acid and one or more proteins. These adsorbents are utilizable effectively for adsorbing heavy metals and oils contained in water. They are produced advantageously by either a process wherein a mixture of nitrohumic acid and a protein is kneaded with an aqueous solution of alkali and the kneaded mixture is first subjected to an acid treatment and then shaped into granules, or a process wherein nitrohumic acid and a protein are dissolved in an aqueous solution of alkali, the solution is acidified to form a precipitate and then the precipitate is separated and shaped into granules. The granular products thus obtained can be further improved in mechanical strength by means of a heat treatment.

公开(公告)号：JPS62227413A

公开(公告)日：1987-10-06

申请号：JP7522486

申请日：1986-03-31

Applicant: AGENCY IND SCIENCE TECHN ,  SASAKURA ENG CO LTD

Inventor： TOMITA SHIGERU ,  TERAJIMA KAZUO ,  ABE YOSHIJI ,  FUJITA KOZO ,  SHIOMI YUTAKA

IPC: B01D17/06 ,  B01D17/00 ,  B01D17/04 ,  B01D17/05 ,  C02F1/46 ,  C02F1/463 ,  C02F1/465

Abstract: PURPOSE:To separate and remove oil content efficiently from the drain of emulsified oil containing nonionic surface-active agent by adding a specific substance as an oil-water separating agent to said drain and then electrolyzing with a solvent electrode. CONSTITUTION:A substance constituting with one or mixture of the three groups, namely a first group constituting with a compound containing aromatic family core such as tannic acid or the like, and carboxyl, sulfone, and the like, a second group constituting with a water soluble high-molecular compound containing carboxyl and sulfone such as polyacrylic sodium or the like, and a third group constituting with anion surface-active agent such as alkyl benzene sulfone acid sodium and the like, is added to emulsified oil drain containing nonionic surface-active agent as oil-water separating agent, mixed and solved sufficiently. Then, as electrode, a soluble electrode is applied to electrolyze said drain. An adequate adding quantity of oil-water separating agent is usually within a range of several to tens of ppm against 1,000ppm or concentration of emulsified oil.

公开(公告)号：JPS61139327A

公开(公告)日：1986-06-26

申请号：JP26004184

申请日：1984-12-11

Applicant: Agency Ind Science Techn ,  Ikeda Bussan Co

Inventor： TOMITA SHIGERU ,  MATSUDA YOSHITO ,  ABE KEIJI ,  TERAJIMA KAZUO ,  AKIYAMA TAKEO ,  TOSHIDA SADATOSHI

IPC: A01K61/00 ,  A01K63/04 ,  E02B15/00

CPC classification number: Y02A40/81

公开(公告)号：JPS62110709A

公开(公告)日：1987-05-21

申请号：JP25039185

申请日：1985-11-08

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TERAJIMA KAZUO ,  TOMITA SHIGERU ,  ABE KEIJI

IPC: B01D17/04 ,  B01D17/022 ,  B01D17/05 ,  B01D39/14

Abstract: PURPOSE:To easily deterge the waste water of the emulsifying oil contg. a large amount of a surface active agent by using a filter medium obtd. by mixing an alkaline earth metal compd. or its alloy to a fibrous material, and then forming it to a nonwoven fabric, a pile and a felt like filter mediums. CONSTITUTION:The filter medium is formed by mixing the powders of the alkaline earth metal compds. such as MgO, MgCO3, Mg(OH)2, CaO, CaCO3, Ca(OH)2 and CaSO4, etc., or the powders of the alloy contg. said compds. such as CaSi2, MgCaSi, MgSiFe and CaSiAl, etc., to a synthetic fiber or a natural fiber and then by forming it to a paper like and a laminate structure according to a felt making method or a paper making method. And then, the waste water of the emulsifying oil is filtered by using said filter medium. Thus, an oil component constituting the emulsifying oil and the surface active agent can be removed at a same time.

公开(公告)号：JPS61293507A

公开(公告)日：1986-12-24

申请号：JP13634185

申请日：1985-06-21

Applicant: AGENCY IND SCIENCE TECHN ,  SASAKURA ENG CO LTD

Inventor： TOMITA SHIGERU ,  MATSUDA YOSHITO ,  ABE KEIJI ,  TERAJIMA KAZUO ,  FUJITA KOZO ,  SHIOMI YUTAKA

IPC: C02F1/463 ,  B01D17/00 ,  B01D17/05 ,  B01D17/06 ,  C02F1/46 ,  C02F1/465

Abstract: PURPOSE:To remove oil component in an oil-contg. salt soln. having high salt concn. effectively by electrolyzing pure water or salt soln. contg.

公开(公告)号：JPS62254810A

公开(公告)日：1987-11-06

申请号：JP9895186

申请日：1986-04-28

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TERAJIMA KAZUO ,  OGAWA HIROTSUGU ,  TOMITA SHIGERU

IPC: B01D17/06 ,  B01D17/00 ,  B01D17/05 ,  C02F1/46 ,  C02F1/463 ,  C02F1/465

Abstract: PURPOSE:To effectively separate and remove oil from emulsifying oil waste water with less electric power in a short time by adding a difficulty soluble polyvalent metallic compd. to the emulsifying oil waste water, and impressing a voltage between both electrodes. CONSTITUTION:The emulsifying oil waste water is charged in an electrolytic cell provided with the electrodes, the additive consisting of a difficulty soluble polyvalent metallic compd. such as the oxides of calcium, magnesium, etc., is added to the water and sufficiently dispersed, and then a voltage is impressed between both electrodes. Consequently, the surface activity of the emulsifier is decreased by electrolytic oxidation, the polyvalent metallic ions are eluted by the electrolytic oxidation of the additive and agglomerated, and oil is floated and separated by gaseous oxygen and hydrogen generated by electrolysis. As a result, oil can be efficiently separated from the emulsifying oil waste water by the synergetic effect of the above-mentioned actions.