• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Process for treating crude and waste waters. This process effected by means of a cationic aminoplast resin is characterized in that a quaternized aminoplast resin is used as a cationic aminoplast resin, in which the aldehyde is a glyoxal or a mixture of glyoxal and formaldehyde and the nitrogen compound is melamine or melamine with some urea. Application to processing of crude waters and waste waters.
    公开号:SU1003747A3
    申请号:SU792854547
    申请日:1979-12-21
    公开日:1983-03-07
    发明作者:Трув Клод；Кабестани Жан
    申请人:Сосьете Франсэз Хехст (Фирма)；
    IPC主号:
    专利说明:

    (B) METHOD FOR CLEANING NATURAL AND WASTE WATER
    one
    The invention relates to a process for the treatment of waste and natural iodine.
    Natural and wastewaters often contain various mineral or organic substances in a dissolved, emulsified or suspended state.
    The known method of water purification with mineral and organic coagulants, 1 3 The closest to the technical essence and the achieved result is the method of sewage purification with cationic amino resin t 1 The disadvantage of the method is the need to adjust the pH of the water before cleaning, since the resins used are sensitive to pH.
    The aim of the invention is to simplify the method.
    The goal is achieved by the method of water purification by treating them with cationic amino resin, which
    is a quaternized glyoxal condensation product or a mixture of glyoxal and formaldehyde with melamine or melamine with urea impurity.
    5 Amino-resin is used in doses of -20 parts per million in the purification of natural waters and in doses of 30-300 parts per million in wastewater treatment. Wastewater is a rastor after metalworking. The cationic amino resin can be used along with coagulant.
    The use of these quaternary resins compared to Aineral
    权利要求:
    Claims (3)
    [1]
    15 coagulants create the advantage that they are less sensitive to pH, do not introduce electrolytes into the treated water, do not change the pH of water, and they effectively work alone without any additives (activated silica, another organic coagulant) and Finally, there is less waste than mineral coagulants, mainly because they are used in smaller doses, which reduces the amount of equipment needed. In addition, the waste produced by the use of the condensation resins of the invention is easier to dehydrate than the waste produced by the use of minerals, and because the coagulant itself is an organic substance, the waste is more easily disposed of by incineration. Quaternary condensation resins according to the invention are more stable during storage than cationic resins (melamine formaldehyde in the form of salts); they are also less sensitive to pH and, therefore, do not require prior adjustment of the pH in the treated waters. In addition, quaternary condensation resins, like other cationic amino resins, possess flocculation and bleaching properties when used in waters containing more suspended or dissolved impurities. In accordance with the invention, even vertical condensation resins are used in doses expressed in 100 resins, 2-500 ppm or, preferably, -20 ppm for natural waters and 30-300 ppm for wastewater. It is also possible to use them together with other coagulants, such as anionic or cationic mineral or organic coagulants, for example, acrylamide-based acrylic copolymers, soluble in water Moreover, quaternary condensates, melamine glyoxal formaldehyde or melamine / urea resins. Oxoxal-formaldehyde can be applied in a wide range of pH, practically at a pH ranging from k, S to 8, and therefore, in most cases, no pre-adjustment of the pH in the treated waters is required. As with all coagulants, it is important to mix the flocculating water with the coagulant as quickly as possible; for this purpose it is recommended, for example, to use a hydroinjector. In this case, the resulting flakes reach their optimal size in about half an hour. Melamine quaternary condensation resins (glyoxal formaldehyde or melamine / urea (Tlioxal) formaldehyde are used especially for treating natural waters (surface and groundwater) and wastewater (industrial effluents, coolant containing metal particles, and similar), in which solid mineral or organic substances are in suspended, more or less colloidal form (clays, bentonites, algae, dust, oxides of iron, etc.), or in emulsified form (oils, carbohydrate genera, etc.), or colored water (textile dyes, etc.), but they can equally well be used in the case of suspensions and emulsions with a relatively high concentration. The treatment according to the invention allows re-use of water, as a result of its water is purified from contaminating impurities, not completely rubbing other properties that they may have in connection with the presence of dissolved nutrients in them. For example, in the case of coolants containing anti-corrosion additives, these fluids after treatment to remove metal particles retain their anti-corrosion properties and can be reused. This is also the case with oil-in-water or water-in-oil emulsions: the treatment according to the present invention allows the liquid phases to be separated and the aqueous phase to be reused. Water containing dyes can also be mentioned which, after treatment, can be reused. Example 1. Surface water treatment to obtain water, the turbidity of which would be less than 2 JACKSON units (ED). To determine the turbidity of the water in Jackson units, this turbidity is compared with a nephelometer with a reference scale of opalescent solutions obtained by dissolving a control suspension in water, having, by definition, a turbidity of 400 ED. To prepare this control suspension, 5 ml of a solution of 1 g of hydrazine sulfate is mixed in 100 ml of water with 5 ml of a solution of 1 g of hexamethyl tetramine in 100 ml of water and dissolved in 100 ml of water. The surface water to be treated had a turbidity of 15 ED. To reduce cloudiness to 2 E. D, it was necessary to use 60 ppm of aluminum sulphate or 0 hours per millin of alumina sulphate and 0.2 hours per million anionic coagulant consisting of an anionic sodium acrylamide / acrylate copolymer with molecules good ratio of 80/20. The same result was obtained when using 5 ppm of the injected resin. In addition, when using this resin, the volume of waste was 5 times less than when using aluminum sulphate, which provides a great advantage in terms of apparatus dimensions. The water treated in this way can be used either for industrial purposes or for obtaining drinking water after additional treatment (passing through activated carbon and chlorination. L p and me R 2. Discoloration of wastewater from the textile industry. Water with a pH of 7, the cyan-colored various dyes were completely discolored by processing 200 ppm of resin, while, after processing 00 per million aluminum oxide sulfate, the water remained slightly colored Example 3. Sewage containing 50h. per million brown acid dye (v brown LANAPERL, 200 ppm of amine quaternary amines were treated with a resin that is completely discolored and can be reused for weaning. Example k. Refining wastewater containing 200 ppm of a million hydrocarbons. As a result of processing 2 parts per (MILLION resin 0.5 parts per million anionic copolymer of acrylamide / sodium acrylate with a molar ratio of 80/20 or 0.5 parts per million of a cationic copolymer of acrylamide / methacrylate cate dimethylaminoethyl with mono By an 80/20 ratio, the ia t76 content of hydrocarbons was reduced to less than 25 ppm. Example 5- Wastewater treatment of a mechanical screen (separation of sand from gravel. These waters contained about 2 g / l of suspended solids C, mainly very thin clays. Good clarification was obtained by processing 7 ppm aluminum sulphate plus 1 part per million 100 cationic copolymer of methacrylate dimethylaminoethyl in the form of hydrochloride or 7 parts per million resin, with slow agitation for about 15 minutes. Example 6. Treatment of lubricant-coolant. aqueous solution liquid, used in metalworking and containing surfactants, corrosion inhibitors and bactericides in dissolved form, has a blackish color after use due to contamination with metal particles, oils and dust.This liquid has been processed 200 ppm amino resins (by dry weight) and filtering. The liquid again became clear, retaining its anti-corrosion properties in the main layer, and can be reused after leveling it contains and various substances in a dissolved state. Thus, the proposed method allows the purification of water to be carried out in a wide range of pH without isolating various additives. Claim 1. Technique for purifying natural and waste waters by treating them with cationic amino resin, characterized in that, in order to simplify the process, a dimethyl sulfate condensation product of glyoxal or a mixture of glyoxal and formaldehyde with melamine or melamine with urea is used as the cationic amino resin
    [2]
    2. Method pop. 1, I differ by the fact that amino-resin is used in doses of -20 parts per million in the purification of natural waters.
    710037 78
    3. The method according to claim 1, about tl and h and y-amino resin is used together with mice and the fact that the amino resin with organic or organic is used in doses of AHEC of parts.
    [3]
    million in wastewater treatment.
    k. The method according to p. 3, distinction-5 Sources of information
    (6 u and with the fact that waste water is taken into account in the examination
    are solutions after 1. U.S. Patent No. 337727,
    metalworking.kl. 210-53.
    5. The method according to PJ. l-t, o t l i- 2. French Patent ff 22575 8,
    due to the fact that cationic ocl. C 02 C 5/02, 1978.
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    同族专利:
    公开号 | 公开日
    CA1124417A|1982-05-25|
    EP0005390B1|1981-11-25|
    FR2424234A1|1979-11-23|
    EP0005390A1|1979-11-14|
    DK160416C|1991-09-16|
    JPS6222676B2|1987-05-19|
    DE2961410D1|1982-01-28|
    DK160416B|1991-03-11|
    WO1979000975A1|1979-11-29|
    ES479839A1|1979-11-16|
    DK548879A|1979-12-21|
    JPS55500260A|1980-05-01|
    FR2424234B1|1980-10-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4110736A1|1991-04-03|1992-10-08|Rotta Innovations Gmbh Dr|Heat degradable polymer particles used in water treatment - comprising amino resin matrix with immobilised functional polymer|
    RU2733619C2|2015-12-07|2020-10-05|С.П.С.М. Са|Method of treating waste water|US3484837A|1968-09-09|1969-12-16|Reichhold Chemicals Inc|Process for removal of inorganic and organic matter from waste water systems|
    NL137596C|1968-12-30|Nobel Hoechst Chimie|
    US3880753A|1971-01-18|1975-04-29|American Cyanamid Co|Flocculation of suspended solids in aqueous medium by action of cyclo-1,1-diallylgrianidine polymer|
    JPS5318343B2|1974-01-14|1978-06-14|FR2519009B1|1981-12-29|1984-06-22|Hoechst France|
    US8757389B2|2004-12-23|2014-06-24|Georgia-Pacific Chemicals Llc|Amine-aldehyde resins and uses thereof in separation processes|
    US8702993B2|2004-12-23|2014-04-22|Georgia-Pacific Chemicals Llc|Amine-aldehyde resins and uses thereof in separation processes|
    US8011514B2|2004-12-23|2011-09-06|Georgia-Pacific Chemicals Llc|Modified amine-aldehyde resins and uses thereof in separation processes|
    US7913852B2|2004-12-23|2011-03-29|Georgia-Pacific Chemicals Llc|Modified amine-aldehyde resins and uses thereof in separation processes|
    US8127930B2|2004-12-23|2012-03-06|Georgia-Pacific Chemicals Llc|Amine-aldehyde resins and uses thereof in separation processes|
    US8092686B2|2004-12-23|2012-01-10|Georgia-Pacific Chemicals Llc|Modified amine-aldehyde resins and uses thereof in separation processes|
    CN112062362A|2020-09-08|2020-12-11|沙县宏盛塑料有限公司|Treatment method of high-concentration aldehyde-containing phenolic resin wastewater|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7812092A|FR2424234B1|1978-04-24|1978-04-24|
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