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

A waste liquid recovery and turpentine oil technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problem that the residue and waste liquid in rosin factories are difficult to be fully utilized, and achieve the effect of cost saving and consumption reduction

Inactive Publication Date: 2008-11-12
古远亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of method that utilizes rosin factory residue waste liquid to reclaim

Method used

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

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example 1

[0012] A method for recovering rosin and turpentine by using residue waste liquid from a rosin factory, the steps are: (1) dissolving: carry out in a dissolving pot with a sieve plate, a slag discharge port and a liner type filter device. First add 0.2 tons of water, then add 0.4 tons of turpentine, 0.001 tons of oxalic acid, then put 0.6 tons of raw materials (waste liquid from the rosin factory) into the dissolving pot, open the emptying gate valve of the condensing and reflux device, and then introduce live air to heat the materials in the pot , the temperature rises to 80-90°C, then close the live steam and keep it for 5 minutes. Open the gate valve of the discharge port, and send the mixed fat liquid into the static pot. (2) Static preparation: the mixed fat liquid obtained in the dissolving process is input into the static pot, and after standing for 40 minutes, the drain valve is opened to discharge most of the water slag to obtain the static fat liquid. (3) Clarificat...

example 2

[0014] The treatment method of the sewage discharged by the existing technology of the rosin factory: its steps are: 1. After the rosin production sewage enters the sewage tank, it can start the pressure filtration operation of the 4th step of embodiment 1 after accumulating to a certain amount, and the filtrate obtained is transparent Oxalic acid liquid; 2. Pump the oxalic acid liquid to the high-level tank of dissolved water, put it into the dissolving process quantitatively, and reduce the consumption of oxalic acid to 50% of the original amount at the same time. The oxalic acid liquid is recycled and not discharged.

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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

technical field [0001] The invention relates to a method for producing rosin, in particular to a method for recovering rosin and turpentine by using residue waste liquid from a rosin factory. Background technique [0002] Pine resin is a mixture of resinous acid and turpentine, and it is a colorless and transparent viscous liquid when it first flows out from the tree body. At present, it is obtained by artificially collecting turpentine, and then processed into rosin and turpentine, which become important chemical raw materials. The processing method of turpentine is the steam method, which uses the water vapor produced by the steam boiler as the heat source, heats and dissolves the rosin first, filters out large impurities, and then further removes fine impurities and most of the water by precipitation, leaving Clean fat liquid, and finally this clean fat liquid is heated and steamed out turpentine in the distillation pot, and obtains rosin. During steam rosin production,...

Claims

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Application Information

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IPC IPC(8): C09F1/00C02F9/10C02F1/40C02F1/04C02F3/00
Inventor 古远亮
Owner 古远亮
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