Name | PINE TAR |
Synonyms | Tar,pine PINE TAR pine tar(oil) Einecs 232-374-8 PINETAR,TECHNICAL PINUS PALUSTRIS WOOD TAR Epa pesticide chemical code 067204 |
CAS | 8011-48-1 |
EINECS | 232-374-8 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
overview | pine tar is dark brown black viscous liquid or semi-solid, with a relative density of 1.01~1.06 and a boiling range of 240~400 ℃. Soluble in ether, ethanol, glacial acetic acid, chloroform, sodium hydroxide solution and volatile oil, etc., slightly soluble in water. Do not expose to the open air to prevent explosion. Pay attention to waterproof. The main ingredients are phenol, cresol, methyl cresol, o-ethyl phenol, guaianosol, turpentine and turpentine, etc., which are obtained by dry distillation of pine. Used as a wood preservative, rubber softener, and also used to make linoleum, paint and plastic. |
production profile | from November to December 1984, we conducted a preliminary survey of major pine tar production plants in the country. according to statistics, the annual production of pine tar in the country reached about 10,000 tons. The output of the relevant provinces and cities is detailed in the table below. ▼ ▲ Production Province Output (tons) Production Province Output (tons) Heilongjiang 400 Fujian 5600~5900 Jiangxi 1200 Zhejiang 1000 Jilin 1500~1700 In the production of pine tar, in addition to the backward production technology and unstable product quality, there are still the following problems: 1. Lack of management in production, resulting in blind production without planning for self-production and self-sales in various places. 2, the self-employed in order to increase income, to inferior products sold in the market. 3. Nearly 60 pine tar production plants in the country still use direct fire heating, with low product yield. 4, improper storage and transportation of products, resulting in product quality decline. 5. Production and sales are wrong and cannot meet the requirements of users. In rubber production, due to the great changes in the source of softeners, it is likely to completely replace pine tar in the near future. In short, the backlog of pine tar products is inevitable. |
processing technology | pine tar city rubber industry excellent softener, at the same time can be further processed into turpentine, asphalt and other products, with high value and broad development prospects. This paper introduces a simple dry distillation technology for the production of pine tar crude oil. As shown in the following figure. the main operation method is divided into the following four steps. 1. Loading: Cut the pine roots with soil and impurities removed into 30-70cm long, split into 3-7cm thick pieces with a saw, and put them into a reinforcing cage. The root material can partially extend out of the upper end of the reinforcing cage and be placed in the kettle, then fill the scattered root material in the kettle mouth, finally cover the kettle cover and seal the gap of the kettle cover with clay. 2. Dry distillation: put the charcoal into the combustion chamber to ignite, and add charcoal frequently, and close the vent and the outside of the combustion room to reduce the temperature in the furnace and prevent self-smoke from coming out. 3. Unloading: Stick and scrape the kettle cover along the seal, lift the kettle cover, sprinkle water in the kettle to cool it down, take out the reinforcement cage, deduct the charcoal and impurities in the kettle cover, and then reload the material. 4. Oil collection: After the dry distillation is completed, the brown crude oil on the upper layer of the separator oil barrel can be collected, and the remaining red mixed liquid mainly composed of wood vinegar can be retained in the barrel. During the dry distillation in the lower stage, the split wood vinegar can be precipitated again to collect the crude oil. |
comprehensive utilization | 1. prevention and control of tree rot disease: tree rot disease not only seriously affects fast-growing and high-yield of trees and high-yield and stable yield of fruit trees, but also leads to large-scale death of trees. Pine tar is a by-product of pine distillation. The main ingredients are guaixanol, cresol, phenol, etc., which have strong anti-corrosion properties. indoor willow suppression test: in order to determine its bacteriostatic effect and effective concentration, apple rot bacteria were artificially inoculated on a plate, and then pine tar with a fraction of 270 ℃ was made into 100/50/20/10/5 times solution and applied separately. the 5 times solution of stone sulfur mixture was used for comparison, and the control was not sprayed. the pine tar was incubated in a thermostatic box for 7-10 days. The test results show that the antibacterial effect of 5 times and 10 times liquid is good, and the average antibacterial effect of 5 times liquid is about 95%, which is better than that of stone sulfur mixture with the same concentration. field control test: the effect of pine tar after 270 ℃ on controlling apple rot. In May 1974, a prevention and control test was carried out in Erdaohezi Management Office and Liumaohe Orchard. In order to increase the penetration of the medicine, the disease spot was punched into mesh holes with a nail brush, and the disease spot was brushed with 5 times liquid, with running water as the degree, 5 times liquid stone sulfur mixture as the comparison, and no prevention as the control. The control results showed that the control effect of pine tar after 270 ℃ reached 93.8-95%, and the disease index decreased from 31.7-38.5 to 1.6-2.3. The control effect of 5 times liquid-sulfur mixture is 34.8-50.1%, the disease index decreased by 15.7-19.5 from 24.1-31.5, while the control disease index increased from 29.3-32.1 to 43.1-52.1. The fruit tree that has been controlled by pine tar gradually regained its vitality, the disease spots healed well, the tree potential developed normally, and the leaf color generally turned green. pine tar after 270 ℃ is used to control poplar rot. the drug concentration should increase accordingly with the age of trees. Generally, 1-5 years is 1: 40 times liquid, 6-1 0 years is 30 times liquid, and 1 1-1 5 years is 20 times liquid. The indoor willow suppression test and field control test proved that pine tar is an excellent pesticide with strong bactericidal power, good permeability, low cost and long-lasting efficacy. 2. dandruff removal: use pine tar to prepare special effects to remove dandruff shampoo. The specific preparation method is: put a piece of soap slice into a basin, add 4 cups of hot water, add 1 tablespoon of pine tar or birch tar. Add another 2 spoons of alcohol, mix and mix well and then use. After use, the hair is moist and smooth, and there is no dandruff. This shampoo is only suitable for oily dark hair, and special attention should be paid when using it. 3. for rubber shoe outsole: in order to reduce the production cost of cloth surface glue and ensure product quality. We have replaced it with pine tar in the larger bottom of its barrel. The effect of increasing viscosity can improve the cold resistance of rubber products and is a general plasticizer. It has the effect of delayed vulcanization to prevent scorch at low temperature. 4. medicinal value: the research on the medicinal value of pine tar is part of the rational development and utilization of pine root retort products. The application of pine tar as an external mildew-killing and bacteriostatic drug is introduced as follows: According to our actual determination, phenol and acidic components in pine tar account for more than 10%, which has obvious mildew-killing and bacteriostatic effects. The phenol coefficient is as high as over 3.5. The mushroom and mushroom alcohols in the ingredients have significant permeability and good transdermal effect. It can carry phenols and acidic components through the epidermis layer and contact the embedded mold hyphae and segmental foils to achieve mildew killing effect. Moreover, phenol and acidic components have killing effects on various bacteria, so they are particularly effective for mixed infection of fungal diseases. The higher paraffin hydrocarbons contained in the ingredients have the functions of protection, lubrication and dilution. Therefore, the mixed existence of these components can be considered as a natural "compound" of an effective fungicide and bacteriostasis topical agent ". Have the conditions required for external use of mildew-killing and bacteriostatic drugs. |
main reference materials | 1. Wang Daquan. Dictionary of Fine Chemical Industry [J]. Chemical Industry Press, 1998, 672. 2. http://baike.baidu.com/view/1998217.htm 3. Wang Deming et al. Brief introduction of pine tar production in China [J]. Science and Technology Newsletter, 17-18. 4. Liang Yangzhen. Preparation Technology of Pine Tar Crude Oil. 5. Forest Chemical Plant and Forest Protection Station of Chaihe Forestry Bureau in Heilongjiang Province. Pine Tar Control Tree Rot [J]. 6. Chinese Academy of Agriculture and Forestry Sciences. Pine Tar Control Tree Rot Disease [J]. 7. Li Lu. Encyclopedia of Chinese Women [J]. Shenyang Northeastern University Press, 1995:219. 8. Yang Zhenglun. Application of pine tar in rubber shoe outsole. China Rubber [J]. 9. Li Lu. Encyclopedia of Chinese Women [J]. Shenyang Northeastern University Press, 1995:219. 10. Li Changsheng. Study on Medicinal Value of pine tar [J].. |
category | corroded articles |
explosive hazard characteristics | corrosive to skin and cornea |
flammability hazard characteristics | combustible in case of open flame, high heat and strong oxidant |
storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidant, nitric acid, hydrogen peroxide and bleaching powder. |
fire extinguishing agent | 1211, dry powder, foam, carbon dioxide |