CN101302402B

CN101302402B - Method for reclaiming rosin and terebinth using resin plant residue waste liquor

Info

Publication number: CN101302402B
Application number: CN2008101069704A
Authority: CN
Inventors: 古远亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-02
Filing date: 2008-07-02
Publication date: 2011-01-19
Anticipated expiration: 2028-07-02
Also published as: CN101302402A

Abstract

The invention discloses a method for recovering rosin and turpentine oil through utilizing residual waste liquor. The technique of the method is the stream method. The working procedures of the method are dissolution, standing, clarification, pressure filtration of residues, distillation, and package of finished products; and a frame type filter is adopted during the working procedure of pressure filtration of the residues. The method has the advantages that: the residual waste liquor in the rosin factory is used as raw material and recovery processing is performed with the rosin processing method, thereby the yield of active ingredients reaches over 96 percent. The method can rapidly separate impurities and recover the rosin and the turpentine oil. The pressure filtration method can be used for sewage treatment of the rosin factory; and all the process water is recycled so as to realize zero draining of sewage.

Description

A kind of rosin factory residue waste liquid that utilizes reclaims rosin, terebinthine method

Technical field

The present invention relates to a kind of rosiny production method, especially a kind of residue waste liquid of rosin factory that utilizes reclaims rosin, terebinthine method.

Background technology

Rosin is resinous acid and terebinthine mixture, is water white thick liquid during at first from the outflow of tree body.At present, employing is manually gathered the way of rosin and is obtained, and is processed into rosin and turps then, becomes important chemical material.The working method of rosin is a steaming process, be that the water vapor that produces with steam boiler is a thermal source, earlier with the rosin heating for dissolving, the impurity of the big grain of filtering, further remove tiny impurity and most moisture content with sedimentary method then, stay clean fat liquid, should steam turps at the still pot internal heating by clean fat liquid at last, and obtain rosin.When steaming process rosin was produced, the residue waste liquid of discharging in the clarification operation was the thick liquid that contains rosin, moisture, impurity.Proportion is between water and fat liquid, like the non-water of water, face a difficult choice like oily non-oil, sink-float, so title middle level fat liquid, mud content is big, the oxide content height, color is brown black, the foreign matter content height, be tens times of artificial rosin foreign matter content, but it contains rosin, terebinthine ratio can reach 50～60%, as its effective constituent being recycled, because of its viscosity height, be difficult to obtain clean fat liquid with the way of continuous precipitation, more can't natural filtration.Normally its collection is accumulated direct heating and temper, be filtered into black rosin simply roughly and sell, this method operation easier is big, poor stability, and recovery utilization rate is extremely low.The factory that also has is with middle level fat liquid twice-cooked stir-frying, and capable again dissolving, clarification, distillatory program are processed, but remain a large amount of effective constituent in the precipitation slag thing, and recovering effect is unsatisfactory.

Summary of the invention

The object of the present invention is to provide a kind of rosin factory residue waste liquid that utilizes to reclaim rosin, terebinthine method, this method has solved the technical barrier that rosin factory residue waste liquid is difficult to make full use of.

Technical scheme of the present invention is: a kind of rosin factory residue waste liquid that utilizes reclaims rosin, terebinthine method, the steps include: (1) dissolving: residue waste liquid, water, oxalic acid and turps are mixed according to mass ratio, in the dissolving of dissolving pan internal heating, obtain mixing fat liquid; (2) quiet system: the mixing fat liquid that obtains through dissolving is imported several and is left standstill in the pot, leaves standstill 40～60 minutes, discharges most of moisture content and slag thing, obtains leaving standstill fat liquid; (3) clarification: leave standstill fat liquid and enter placed in-line clarifying kettle group, clarified 6～8 hours, discharge moisture content and slag thing, isolate clean fat liquid; (4) filter-press residues thing: filter the moisture and the slag thing of quiet system and the discharge of clarification operation with pressure filter, filtrate is returned dissolution process; (5) distillation fat liquid: the clean fat liquid that after clarification, obtains, deliver to distillation in the still pot, reclaim turps; (6) packing: after the turps distillation in the clean fat liquid was reclaimed and finished, the still raffinate was the rosin finished product, directly the discharging packing.It is characterized in that: in filter-press residues thing operation, adopt plate and frame(type)filter press.Slag waste liquid, water, oxalic acid and turps mix according to mass ratio: 600-700: 200-300: 1-3: 400-600.The filter plate of plate and frame(type)filter press is that the two-sided porous metal web plate of sandwich-type is made.The filter plate of plate-and-frame filter press can be that cylindrical metal is arranged in parallel into fence type.The feed system of plate and frame(type)filter press is an air compression plant, promptly is made up of air compressor and binder jar.This press filtration method can be directly used in the wastewater treatment of rosin enterprise, and promptly waste water all recycles through press filtration, not externally discharged waste water.

The invention has the advantages that: this invention utilizes plate and frame(type)filter press, 1. moisture, the slag thing of quiet system, the discharging of clarification operation all can be entered pressure filter, and moisture content and fat hydraulic pressure are leached; 2. sewage has become clear water after press filtration, all recycles, and externally discharged waste water has not reduced the consumption of water and oxalic acid simultaneously, has saved cost; 3. the slag thing has become grouts after press filtration, and the rate of recovery of effective ingredient reaches more than 96%.

Description of drawings

Fig. 1 is a two-sided porous web plate sandwich-type screen plate structural representation of the present invention;

Fig. 2 is a two-sided porous web plate sandwich-type screen plate side elevational view of the present invention;

Fig. 3 is a fence type screen plate structural representation of the present invention;

Fig. 4 is a fence type screen plate side elevational view of the present invention;

Fig. 5 is a plate and frame(type)filter press binder jar synoptic diagram of the present invention.

Embodiment

Example 1:

A kind of rosin factory residue waste liquid of utilizing reclaims rosin, terebinthine method, and step is: (1) dissolving: at the band sieve plate with have in the dissolving pan of slag-drip opening and liner type filtration unit and carry out.At first add 0.2 ton in water, add 0.4 ton in turps again, 0.001 ton of oxalic acid, with 0.6 ton of raw material (rosin factory waste liquid) dissolving pan of packing into, open the emptying gate valve of condensation reflux unit then, feed lively atmosphere then, a pot interior material is heated, temperature rises to 80-90 ℃, closes working steam then, keeps 5 minutes.Open the discharge port gate valve, will mix fat liquid and send into and leave standstill pot.(2) quiet system: the mixing fat liquid input that dissolution process obtains is left standstill in the pot, after leaving standstill 40 minutes, opens water discharge valve, discharges most of moisture slag thing, obtains leaving standstill fat liquid.(3) clarification: will leave standstill the fat liquid that leaves standstill that obtains and send into placed in-line clarifying kettle group clarification 6 hours, and regularly discharge moisture and slag thing, and isolate clean fat liquid.Clean fat liquid after the clarification is sent into test tank, prepares by quantitatively sending into distillation process.(4) cross the filter residue thing: the waste residue that respectively leaves standstill the discharge of pot and clarifying kettle gathers in the storage tank; import the binder jar then and carry out the binder operation; the steps include: at first to close feed valve, exhaust-valve, open bleeder valve, the slow then air valve that drives into; by jar material is pressed into the pressure filter inner filtration; filtrate is from flowing to oil-water separation tank, and the filtrate after the oily water separation is sent dissolution process back to, when the binder pressure tank is stabilized in 0.03MPa and no longer descends; can shut down and slag tap, filter cake is useed fuel as.(5) distillation fat liquid: quantitatively (capacity 80%) slowly opened the clean fat liquid one-level still pot of packing into and closed vapour and working steam, and be heated to 150 ℃ and turn off working steam, fat liquid input secondary distillation pot, the one-level still pot is feeded once more.Fat liquid continues to add thermal distillation at the secondary distillation pot, and kettle temperature reaches 190 ℃, and turps reclaims and to close working steam when finishing, close vapour stops distillation procedure, opens and puts fragrant valve discharging barrelling, is the rosin finished product after the cooling.

Example 2:

The treatment process of existing technology institute of rosin factory sewer: the steps include: 1, after the rosin production waste enters sewage lagoon, run up to the press filtration operation that some amount can come into effect the 4th step of example 1, the filtrate that obtains is transparent oxalic acid liquid; 2, with the oxalic acid liquid pump to dissolving the water header tank, quantitatively put to dissolution process, the consumption with oxalic acid reduces to former consumption 50% simultaneously, this oxalic acid liquid recycles, and does not efflux.

Claims

1. one kind is utilized rosin factory residue waste liquid to reclaim rosin, terebinthine method, the steps include: (1) dissolving: residue waste liquid, water, oxalic acid and the turps mass ratio according to 600-700: 200-300: 1-3: 400-600 is mixed, in the dissolving of dissolving pan internal heating, obtain mixing fat liquid; (2) quiet system: the mixing fat liquid that obtains through dissolving is imported several and is left standstill in the pot, leaves standstill 40～60 minutes, discharges most of moisture content and slag thing, obtains leaving standstill fat liquid; (3) clarification: leave standstill fat liquid and enter placed in-line clarifying kettle group, clarified 6～8 hours, discharge moisture content and slag thing, isolate clean fat liquid; (4) filter-press residues thing: filter the moisture and the slag thing of quiet system and the discharge of clarification operation with pressure filter, filtrate is returned dissolution process; (5) distillation fat liquid: the clean fat liquid that after clarification, obtains, deliver to distillation in the still pot, reclaim turps; (6) packing: after the turps distillation in the clean fat liquid was reclaimed and finished, the still raffinate was the rosin finished product, directly the discharging packing; It is characterized in that: in filter-press residues thing operation, adopt plate and frame(type)filter press.

2. a kind of rosin factory residue waste liquid that utilizes according to claim 1 reclaims rosin, terebinthine method, and it is characterized in that: the filter plate of plate and frame(type)filter press is that the two-sided porous metal web plate of sandwich-type is made.

3. a kind of rosin factory residue waste liquid that utilizes according to claim 1 reclaims rosin, terebinthine method, and it is characterized in that: the filter plate of plate-and-frame filter press is that cylindrical metal is arranged in parallel into fence type.

4. a kind of rosin factory residue waste liquid that utilizes according to claim 1 reclaims rosin, terebinthine method, and it is characterized in that: the feed system of plate and frame(type)filter press is an air compression plant, promptly is made up of air compressor and binder jar.

5. a kind of rosin factory residue waste liquid that utilizes according to claim 1 reclaims rosin, terebinthine method, and it is characterized in that: this press filtration method is directly used in the wastewater treatment of rosin enterprise, and promptly waste water all recycles through press filtration, not externally discharged waste water.