FR2367707A1 - Phenol!-formaldehyde! resin waste water purification - by sorption of phenol with wood chips, methanol removal and sorption of formaldehyde - Google Patents

Phenol!-formaldehyde! resin waste water purification - by sorption of phenol with wood chips, methanol removal and sorption of formaldehyde

Info

Publication number
FR2367707A1
FR2367707A1 FR7731342A FR7731342A FR2367707A1 FR 2367707 A1 FR2367707 A1 FR 2367707A1 FR 7731342 A FR7731342 A FR 7731342A FR 7731342 A FR7731342 A FR 7731342A FR 2367707 A1 FR2367707 A1 FR 2367707A1
Authority
FR
France
Prior art keywords
phenol
sorption
formaldehyde
iii
waste water
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.)
Granted
Application number
FR7731342A
Other languages
French (fr)
Other versions
FR2367707B1 (en
Inventor
Margarita Dmitrievna Babina
Egor Fedo
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.)
NIZHNETAGILSKOE PROIZV
Original Assignee
NIZHNETAGILSKOE PROIZV
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 NIZHNETAGILSKOE PROIZV filed Critical NIZHNETAGILSKOE PROIZV
Publication of FR2367707A1 publication Critical patent/FR2367707A1/en
Application granted granted Critical
Publication of FR2367707B1 publication Critical patent/FR2367707B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Waste water from phenol-HCHO resin mfr. is purified of phenol (I) and HCHO by (a) removing (I) and partially (II) in a mol. ratio of 1:1.4-1:3.5 in the presence of a vegetable sorption agent (III) at a pH of 0.65-0..8 and at b.pt. for sufficient time to allow bonding of (I)) and to form a prod. of (I), (II) and components of (III) and separating the prod. from the liq. phase, (B) removing MeOH from the liq. and (c) removing residual (II) by sorption and polycondensation in the presence of (III) with addition of a phenolic component in an amt. to bond (IIe at 60-100 degrees C and a pH of 0.65-10 to form a prod. of (II), the phenolic component and components of (III). The degree of purification is 98-99%. The prods. form from (I), (II) and (III) are suitable for industrial use. (III) is esp. wood chips and is used in an amt. of 8-10 wt. % in steps (a) and (b). The phenolic component is pref. phenol or urea. When it is phenol the process is carried out at a pH of 0.65-0.8 and the b.pt. and when it is urea the ph is 8-10 and the temp. is 60-100 degrees C.
FR7731342A 1976-10-18 1977-10-18 Phenol!-formaldehyde! resin waste water purification - by sorption of phenol with wood chips, methanol removal and sorption of formaldehyde Granted FR2367707A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU2412322 1976-10-18
SU2441480 1977-01-07

Publications (2)

Publication Number Publication Date
FR2367707A1 true FR2367707A1 (en) 1978-05-12
FR2367707B1 FR2367707B1 (en) 1981-01-16

Family

ID=26665597

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731342A Granted FR2367707A1 (en) 1976-10-18 1977-10-18 Phenol!-formaldehyde! resin waste water purification - by sorption of phenol with wood chips, methanol removal and sorption of formaldehyde

Country Status (4)

Country Link
JP (1) JPS5366995A (en)
AT (1) AT357116B (en)
DE (1) DE2746358A1 (en)
FR (1) FR2367707A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438669A1 (en) * 1978-10-12 1980-05-09 Nizhnetagilskoe Proizv Phenolic moulding compsns. contg. pre-treated wood filler - giving increased water resistance and hardening rate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914146A1 (en) * 1989-04-28 1990-10-31 Baehre & Greten Disposal of flushing water produced in mfr. of composite wood prods. - by absorbing waste water into wood particles forming raw material for mfg. process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438669A1 (en) * 1978-10-12 1980-05-09 Nizhnetagilskoe Proizv Phenolic moulding compsns. contg. pre-treated wood filler - giving increased water resistance and hardening rate

Also Published As

Publication number Publication date
ATA729677A (en) 1979-10-15
JPS5366995A (en) 1978-06-14
AT357116B (en) 1980-06-10
FR2367707B1 (en) 1981-01-16
JPS5432836B2 (en) 1979-10-17
DE2746358A1 (en) 1978-05-24

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Legal Events

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ST Notification of lapse